JANUS INVESTMENT FUND
N-30D, 1998-06-24
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1998 SEMIANNUAL REPORT
Janus Equity Funds

          JANUS FUND

          JANUS BALANCED FUND

          JANUS ENTERPRISE FUND

          JANUS EQUITY INCOME FUND

          JANUS GROWTH AND INCOME FUND

          JANUS MERCURY FUND

          JANUS OLYMPUS FUND

          JANUS OVERSEAS FUND

          JANUS SPECIAL SITUATIONS FUND

          JANUS TWENTY FUND

          JANUS VENTURE FUND

          JANUS WORLDWIDE FUND

                                                                    [LOGO] JANUS
<PAGE>

                               TABLE OF CONTENTS
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Our Message to You                                                             1
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Portfolio Manager's Commentary and Schedule of Investments
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     Janus Fund                                                                2
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     Janus Balanced Fund                                                       5
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     Janus Enterprise Fund                                                     9
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     Janus Equity Income Fund                                                 12
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     Janus Growth and Income Fund                                             15
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     Janus Mercury Fund                                                       19
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     Janus Olympus Fund                                                       22
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     Janus Overseas Fund                                                      25
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     Janus Special Situations Fund                                            30
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     Janus Twenty Fund                                                        33
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     Janus Venture Fund                                                       36
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     Janus Worldwide Fund                                                     40
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Statements of Operations                                                      46
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Statements of Assets and Liabilities                                          46
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Statements of Changes in Net Assets                                           48
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Financial Highlights                                                          51
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Notes to Schedules of Investments                                             56
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Notes to Financial Statements                                                 58
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An Explanation of Performance Information
     Performance  overview graphs on the following pages compare the performance
of a $10,000  investment  in each fund since its inception to one or more widely
used market  indexes.  Each graph reflects the lifetime  performance of the fund
through April 30, 1998.
     When comparing the  performance of a fund with an index,  keep in mind that
market  indexes do not take into  account  brokerage  commissions  that would be
incurred if you purchased the individual  securities in the index.  They also do
not include taxes payable on dividends,  interest payments or operating expenses
necessary to maintain a portfolio investing in the index.
     Average annual total returns are quoted for each fund. Average annual total
return is  calculated  by taking the growth or decline in value of an investment
over a period of time, including reinvestment of dividends and distributions and
then  calculating the annual  compound  percentage rate that would have produced
the same result had the rate of growth been constant throughout the period.

An Explanation of the Schedule of Investments
     Following the performance  overview is each fund's Schedule of Investments.
This schedule  reports the industry  concentrations  and the different  types of
securities held in the fund's portfolio on the last day of the reporting period.
Securities  are usually  listed by type (common  stock,  corporate  bonds,  U.S.
government  obligations,   etc.)  and  by  industry   classification   (banking,
communications, insurance, etc.).
     The market value of each security  represents  its value on the last day of
the reporting period. The value of securities  denominated in foreign currencies
is converted into U.S.  dollars.  Funds that invest in foreign  securities  also
provide a summary of  investments  by country.  This summary  reports the fund's
exposure to different  countries by  indicating  the  percentage  of  securities
invested in each country.

An Explanation of the Forward Currency Contract Table
     A table listing forward currency  contracts follows each fund's Schedule of
Investments  (if  applicable).  Forward  currency  contracts  are  agreements to
deliver  or  receive  a preset  amount of  currency  at a future  date.  Forward
currency contracts are used to hedge against foreign currency risk in the fund's
long-term holdings.
     The table provides the name of the foreign currency, the settlement date of
the  contract,  the amount of the  contract,  the value of the  currency in U.S.
dollars and the amount of unrealized gain or loss. The amount of unrealized gain
or loss  reflects  the  change  in  currency  exchange  rates  from the time the
contract was opened to the last day of the reporting period.

<PAGE>

                               OUR MESSAGE TO YOU

Dear Shareholders:
     America's  continued  healthy  economy  and a major push  toward  corporate
restructuring  in European  markets set the stage for solid  global stock market
gains during the first half of our fiscal year,  November 1, 1997,  to April 30,
1998, despite lingering economic turmoil in Asia. Benchmark domestic and foreign
indexes gained considerably during the period, with some setting new records.
- --------------------------------------------------------------------------------
Standard & Poor's 500 Stock Index                                         22.50%
Standard & Poor's 400 MidCap Stock Index                                  19.17%
Russell 2000 Index (small stocks)                                         11.88%
- --------------------------------------------------------------------------------
All returns include reinvested dividends.

Positive Trends Boost U.S. Markets
     Helping push the U.S.  stock market to new heights has been an economic era
of moderate growth, low interest rates, minimal inflation,  and steady corporate
earnings.  Perhaps the best indication of U.S.  economic  strength was a rise in
gross domestic product - the sum of all goods and services  produced in the U.S.
- - from a robust 3.7% in the fourth quarter of 1997 to an even higher 4.2% in the
first  three  months  of '98.  Other  positive  indicators  included  a surge in
production capacity and an unemployment level that in the first quarter was at a
24-year low.
     We've  witnessed  several  trends  that  continue to help shape this "dream
economy,"  including  tremendous  advances  in  technology,  globalization,  and
consolidation  within certain industries - the latter of which has resulted in a
record level of mergers and acquisitions.
     Particularly  evident  was the wave of  consolidations  in the  banking and
securities  industries  brought about by government  deregulation,  economies of
scale,  and  increased  global  competition.  The proposed  mega-merger  between
Travelers Group and Citicorp was the first to make headlines in early April. One
week later,  NationsBank  announced its marriage with  BankAmerica,  and BancOne
tied the knot with First Chicago.
     Mergers and acquisitions in banking and other industries were encouraged by
soaring markets this period.  This  consolidation in turn enables  industries to
improve  profitability,  which drives individual stock prices higher. As several
of our portfolio managers explain in their letters, many of our stocks benefited
from these events.
     Finally,  the liquidity of big,  brand-name  companies continued to capture
the attention of investors.  Even though earnings growth among smaller companies
outpaced  that of the  larger  names in recent  months,  a market  awash in cash
seemed intent on staying the course.

Strong Markets Abroad
     Because of the economic downturn in Asia,  resulting in a sharp decrease in
commodity prices, global inflationary pressures were reduced. Consequently, many
global markets responded favorably.
- --------------------------------------------------------------------------------
MSCI EAFE Index(1)                                                        15.44%
MSCI World Index(1)                                                       18.86%
- --------------------------------------------------------------------------------
     Regardless  of its  positive  effects  on the  overall  global  economy,  I
continue to view Asia with less  optimism.  The  Japanese  government  is in the
midst of developing a reform package  necessary to stimulate its economy,  which
in turn may help move the economies of other Asian countries.  However, Japanese
companies have been  ineffective  in enacting the same  corporate  restructuring
strategies and shareholder value reforms that have made U.S.  companies the envy
of the world.  And although  this has presented a buying  opportunity  for Asian
stocks, we remain cautious and selective about our investments there.
     While certain stocks were hit by Asia's economic woes,  especially those in
the oil services  sector and some  bellwether  technology  stocks,  most markets
generally managed to avoid the worst of the "Asian Flu." However,  I suspect its
harshest  shock  waves  may not be felt  until  the  second  half  of  1998.  In
anticipation of this possibility and as part of our  long-standing  goal to keep
our funds flexible in the face of potential economic turbulence, we've redoubled
our research  efforts so that we're confident our stock  selections  should hold
their own in any market environment.
     The economies of  Continental  Europe gained  momentum  during the last six
months,  fueled  primarily  by  corporate  prosperity  in  the  United  Kingdom,
particularly  in the  pharmaceutical  and banking  industries.  Companies  there
mirrored the successful  restructuring and consolidation themes initiated in the
U.S. and were rewarded by significant earnings growth.  European holdings in the
information  technology  sector also  helped to boost  returns in several of our
funds, as explained in greater detail by some of our portfolio managers.
     I believe the buoyancy in European markets was also linked to a progression
toward a common  currency  known as the Euro and a  collective  movement  toward
lower and more closely  aligned  interest rates.  Together,  these trends played
what I believe was perhaps the most conspicuous role in propelling many European
markets.

Looking Ahead
     While I anticipate  that benign  inflation and low interest rates could set
the stage for healthy global  markets in the months ahead,  our team of analysts
and portfolio  managers will continue to keep a close eye on corporate  earnings
growth,  which was  surprisingly  slim considering the stock market's rally this
period.  Some market  observers  believe the  seemingly  lofty levels of today's
stock   markets   account  for   expectations   of  a  resurgence  in  corporate
profitability  during  the  second  half of the year.  But if  earnings  fail to
rebound  in  the  third  and  fourth  quarters,  markets  could  quickly  become
vulnerable.
     At Janus,  however,  we are not swayed by  overall  market  sentiment.  And
earnings  reports  are only "the tip of the  iceberg,"  because  our  investment
selections are based on solid company fundamentals  positioned to prevail in any
market scenario. We're confident our in-depth,  hands-on method of research will
continue to help us identify  these  fundamentals,  enabling us to find the best
investment opportunities for your money.
     With that said, I want to thank you for the confidence you've placed in us.

Sincerely,

/s/ Tom Bailey

Tom Bailey
Chairman

- --------------------------------------------------------------------------------
(1)  Both index  returns  include net  dividends  reinvested.  Net dividends are
     those dividends that remain to be reinvested  after foreign tax obligations
     are met.  Tax  obligations  vary from  country to country.  EAFE stands for
     Europe,  Australasia,  and the Far East.  Neither the U.S. nor the emerging
     markets of Latin America and Eastern  Europe are  represented  in EAFE. The
     MSCI World Index  contains  North  America,  Europe,  and the  Asia/Pacific
     Region.
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   1
<PAGE>

                  JANUS FUND Portfolio Manager, James P. Craig

     Janus Fund posted a gain of 20.01% for the six months ended April 30, 1998.
I am not pleased to have trailed the Standard & Poor's 500 Index, which returned
a  total  of  22.50%  (both  returns  include  reinvested  dividends),  but I am
encouraged by changes made during the period that had an  increasingly  positive
effect on results.
     The Fund has been  restructured to focus more on higher earnings  growth. I
believe the days of easy gains from P/E-multiple  expansion are behind us. Going
forward,  the  companies  that stay  afloat  are  likely to be the ones that can
exceed earnings expectations.

A Market Again Led by Large Caps
     As Tom Bailey  pointed  out in his letter,  large  companies  continued  to
capture investors' interest during the past six months.  Following the crisis in
Asia that  began last  summer,  the U.S.  markets  bounced  back,  with the very
largest of stocks leading the way.
     Taking  advantage  of the  volatility,  I  divested  some of our  financial
services and consumer nondurable stocks and reinvested in technology businesses.
I focused on  companies  with strong  franchises  (i.e.,  those with the highest
barriers to entry) that also had solid long-term stories.
     Among the technology positions augmented were  market-dominating  companies
like Microsoft, Cisco Systems - a leading manufacturer of networking equipment -
and Parametric  Technology.  We also invested in Cadence Design Systems, a maker
of  semiconductor-manufacturing  software,  and  Maxim  Integrated  Products,  a
high-value-added supplier of analog semiconductors. Finally, we began building a
position  in  Applied   Materials,   Inc.,  the  world's  leading   supplier  of
semiconductor fabrication systems and services.

Strong Performance by Media and Drug Stocks
     I'm very  optimistic  about new areas  within the cable  industry,  such as
telephone,  Internet, and digital cable services. The delivery systems for these
new products (i.e., the cable systems) are already in place in most parts of the
country.  Now there is a great opportunity for companies to provide new services
via these existing systems and thereby generate tremendous additional cash flow.
     With this in mind, the portfolio  management  team beefed up our investment
in media  conglomerate  Time Warner and cable TV companies  Tele-Communications,
Inc.,  Comcast,  and Media One (formerly part of U.S. West). All three sustained
their  impressive  runs as Wall  Street  came to better  understand  both  their
individual prospects and the growth potential for their industry.
     Another  medium that we like is radio,  where  revenues are on the rise and
consolidation  is making the business more  efficient.  Advertisers are shifting
from  network  TV and  other  more  expensive  media to  radio.  Meanwhile,  new
regulations  allow companies to own up to half of a radio market.  The result is
increased  profitability  at companies  like CBS,  Chancellor  Media,  and Clear
Channel Communications.
     Our pharmaceutical  holdings continue to provide great performance overall.
Nonetheless, we shifted our positions to keep the focus on the biggest companies
with the  strongest  R&D and  delivery  systems.  We  strengthened  positions in
Warner-Lambert  and Pfizer,  which continue to be successful in introducing  new
products,  and trimmed our  SmithKline  Beecham  holding while  eliminating  our
position in Bristol-Myers Squibb.

A More Flexible Approach
     During the past year, I have  adjusted my strategy  slightly in response to
the higher P/Es of recent years, which could continue as long as the economy and
corporate  profits  remain  steady and  interest  rates are low.  I find  myself
holding the Fund's  winners a bit longer and buying more  aggressively  when I'm
persuaded by the evidence that a company can grow earnings faster than generally
expected.
     One  result is a more  focused  fund,  which can mean  greater  volatility.
However,  I'm confident in the quality of our  investments.  We're spending even
more  time  on the  road,  face  to  face  with  corporate  CEOs,  clients,  and
competitors,  to ensure that we own companies with the strongest market share in
fast-growing industries.
     Unfortunately,  even  a  deep  understanding  of  a  company's  fundamental
strengths is not always a defense against broad change.  For instance,  our most
significant challenge during the period involved the oil industry. Approximately
7% of the Fund's  assets were  invested in oil  services  stocks when oil prices
collapsed  this  winter.  We were caught off guard and were  admittedly  slow to
react.  We essentially  liquidated our holdings at cost, but this was well below
their values at the beginning of the period.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 96.2%                  97.4%
  Foreign                                11.8%                  18.6%
  European                               11.2%                  17.6%
Top 10 Equities (% of Assets)            35.2%                  25.9%
Number of Stocks                           68                    110
Cash & Cash Equivalents                   3.8%                   2.6%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Microsoft Corp.                           4.6%                   2.6%
Cisco Systems, Inc.                       4.5%                   2.6%
Monsanto Co.                              3.7%                   3.4%
CBS Corp.                                 3.7%                    --
Time Warner, Inc.                         3.3%                   0.8%
Comcast Corp. - Special Class A           3.2%                   0.6%
Tele-Communications, Inc. - Class A       3.1%                   2.3%
Parametric Technology Co.                 3.1%                   1.8%
Cadence Design Systems, Inc.              3.1%                   2.0%
Warner-Lambert Co.                        2.9%                   2.5%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Computer Software                        10.7%                   6.4%
Diversified Operations                    9.1%                   9.8%
Medical - Drugs                           9.1%                   8.4%
Cable Television                          9.0%                   3.0%
Money Center Banks                        6.9%                   4.8%
- --------------------------------------------------------------------------------
A Truly Global Marketplace
     I don't  believe  we've  felt the full  impact  from the  falloff  in Asia.
However,  I believe  the growth in the U.S.  and Europe  should  outweigh  these
effects.  In fact,  the implosion of these Asian  economies has been bullish for
U.S. stocks because it has held down prices and inflationary pressures.
     I continue to watch  carefully  the strength of the economy and to look for
any  ramifications  on interest rates.  While I'm optimistic  rates will stay at
present  levels,  I also keep an eye out for any signs  that they might move up,
which could be dangerous for the markets.
     In closing, I would like to thank you for investing in Janus Fund.

- --------------------------------------------------------------------------------
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   2
<PAGE>

                  JANUS FUND Portfolio Manager, James P. Craig

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus Fund and the S&P 500 Index.  Janus Fund is  represented by a solid blue
line.  The S&P 500 Index is  represented  by a single dashed black line. The "y"
axis reflects the value of the investment. The "x" axis reflects the computation
periods from  inception,  February 5, 1970,  through April 30, 1998. The upper
right quadrant reflects the ending value of the hypothetical investment in Janus
Fund ($917,186) as compared to the S&P 500 Index  ($374,604).  There is a legend
in the upper left quadrant of the graph which indicates  Janus Fund's  one-year,
five-year,  ten-year and since inception (February 5, 1970) average annual total
returns as 39.48%, 19.12%, 19.64% and 17.35%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                      JANUS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 96.2%
- --------------------------------------------------------------------------------
Agricultural Biotechnology - 3.7%
   15,523,925    Monsanto Co.                                    $   820,827,534
- --------------------------------------------------------------------------------
Applications Software - 0.5%
    2,292,800    PeopleSoft, Inc.*                                   106,615,200
- --------------------------------------------------------------------------------
Automotive - Truck Parts and Equipment - 1.0%
    3,543,300    Federal-Mogul Corp.#                                229,207,219
- --------------------------------------------------------------------------------
Cable Television - 9.0%
   19,959,300    Comcast Corp. - Special Class A#                    714,792,431
    1,439,437    Cox Communications, Inc. - Class A*                  64,234,876
   21,226,431    Tele-Communications, Inc. - Class A*                684,552,400
   13,787,860    US WEST Media Group*                                520,491,715
- --------------------------------------------------------------------------------
                                                                   1,984,071,422
- --------------------------------------------------------------------------------
Chemicals - Diversified - 5.1%
    8,047,615    E.I. du Pont de Nemours and Co.                     585,966,967
   26,300,000    Imperial Chemical Industries PLC                    477,553,296
    1,705,460    Solutia, Inc.                                        48,392,428
- --------------------------------------------------------------------------------
                                                                   1,111,912,691
- --------------------------------------------------------------------------------
Chemicals - Specialty - 0.7%
    2,750,725    Cytec Industries, Inc.*,#                           150,602,194
- --------------------------------------------------------------------------------
Circuits - 1.8%
    3,956,135    Analog Devices, Inc.*                               154,042,007
    3,101,715    Linear Technology Corp.                             249,688,058
- --------------------------------------------------------------------------------
                                                                     403,730,065
- --------------------------------------------------------------------------------
Commercial Banks - 1.3%
    1,976,795    Northern Trust Corp.                                144,306,035
    2,288,000    Star Banc Corp.                                     144,573,000
- --------------------------------------------------------------------------------
                                                                     288,879,035
- --------------------------------------------------------------------------------
Commercial Services - 0.8%
    5,565,280    Gartner Group, Inc. - Class A*,#                $   184,349,900
- --------------------------------------------------------------------------------
Computer Software - 10.7%
   18,606,420    Cadence Design Systems, Inc.*,#                     675,645,626
   11,234,980    Microsoft Corp.*                                  1,012,552,573
   21,147,000    Parametric Technology Co.*,#                        676,043,156
- --------------------------------------------------------------------------------
                                                                   2,364,241,355
- --------------------------------------------------------------------------------
Computers - Integrated Systems - 0.3%
    2,125,000    Wang Laboratories, Inc.*,#                           57,375,000
- --------------------------------------------------------------------------------
Computers - Micro - 0.9%
    2,404,705    Dell Computer Corp.*                                194,179,929
- --------------------------------------------------------------------------------
Containers - Paper and Plastic - 0.3%
    1,053,975    Sealed Air Corp.*                                    66,268,678
- --------------------------------------------------------------------------------
Cruise Lines - 1.0%
    3,194,425    Carnival Corp. - Class A                            222,212,189
- --------------------------------------------------------------------------------
Diversified Financial Services - 0.8%
    2,312,900    Associates First Capital Corp. - Class A            172,889,275
- --------------------------------------------------------------------------------
Diversified Operations - 9.1%
   22,903,600    CBS Corp.*                                          815,940,750
    4,167,200    General Electric Co.                                354,732,900
    9,422,818    Siebe PLC                                           214,267,343
      941,200    Textron, Inc.                                        73,648,900
   10,225,700    Tyco International, Ltd.                            557,300,650
- --------------------------------------------------------------------------------
                                                                   2,015,890,543
- --------------------------------------------------------------------------------
Drug Delivery Systems - 0.3%
    1,587,500    ALZA Corp.*                                          76,100,781
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 5.5%
    4,722,720    Applied Materials, Inc.*                            170,608,260
   11,256,900    Maxim Integrated Products, Inc.*,#                  454,497,338
    9,005,575    Texas Instruments, Inc.                             576,919,648
- --------------------------------------------------------------------------------
                                                                   1,202,025,246
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   3
<PAGE>

                     JANUS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Finance - Consumer Loans - 2.0%
    1,399,150    Beneficial Corp.                                $   182,414,181
    2,018,905    Household International, Inc.                       265,359,826
- --------------------------------------------------------------------------------
                                                                     447,774,007
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 2.9%
    7,950,937    Charles Schwab Corp.                                278,282,795
    4,569,770    Morgan Stanley, Dean Witter, Discover and Co.       360,440,609
- --------------------------------------------------------------------------------
                                                                     638,723,404
- --------------------------------------------------------------------------------
Finance - Other Services - 0.6%
    2,885,363    Newcourt Credit Group, Inc.                         141,743,457
- --------------------------------------------------------------------------------
Human Resources - 0.7%
    2,798,868    Robert Half International, Inc.*                    151,488,731
- --------------------------------------------------------------------------------
Internet Software - 1.0%
    2,731,600    America Online, Inc.*                               218,528,000
- --------------------------------------------------------------------------------
Life and Health Insurance - 1.4%
      137,505    Schweizerische Lebensversicherungs-und
                   Rentenanstalt                                     116,333,883
    3,588,179    UNUM Corp.#                                         192,864,621
- --------------------------------------------------------------------------------
                                                                     309,198,504
- --------------------------------------------------------------------------------
Medical - Drugs - 9.1%
    5,309,555    Astra A.B. - Class A                                109,088,955
    2,689,565    Eli Lilly and Co.                                   187,092,865
       52,078    Novartis A.G.                                        86,105,738
    5,316,050    Pfizer, Inc.                                        605,032,941
    1,770,850    Schering-Plough Corp.                               141,889,356
   19,426,531    SmithKline Beecham PLC                              229,677,529
    3,426,950    Warner-Lambert Co.                                  648,336,103
- --------------------------------------------------------------------------------
                                                                   2,007,223,487
- --------------------------------------------------------------------------------
Medical - Wholesale Drug Distributors - 1.1%
    2,431,037    Cardinal Health, Inc.                               233,987,311
- --------------------------------------------------------------------------------
Money Center Banks - 6.9%
    8,683,590    Bank of New York Co., Inc.                          512,874,534
    1,961,650    BankAmerica Corp.                                   166,740,250
   13,470,291    Barclays PLC                                        388,735,356
      456,250    Citicorp                                             68,665,625
   11,022,027    Lloyds TSB Group PLC                                165,398,742
      129,789    UBS                                                 209,055,178
- --------------------------------------------------------------------------------
                                                                   1,511,469,685
- --------------------------------------------------------------------------------
Multimedia - 3.9%
    3,135,550    Meredith Corp.#                                     134,828,650
    9,348,596    Time Warner, Inc.                                   733,864,786
- --------------------------------------------------------------------------------
                                                                     868,693,436
- --------------------------------------------------------------------------------
Networking Products - 4.5%
   13,427,600    Cisco Systems, Inc.*                                983,571,700
- --------------------------------------------------------------------------------
Pharmacy Services - 0.5%
    3,204,860    Omnicare, Inc.                                      109,766,455
- --------------------------------------------------------------------------------
Printing - Commercial - 0.2%
    1,084,100    World Color Press, Inc.*                             34,691,200
- --------------------------------------------------------------------------------
Publishing - Books - 2.1%
    3,561,781    Wolters Kluwer N.V.**,#                             465,557,953
- --------------------------------------------------------------------------------
Radio - 2.5%
    7,602,520    Chancellor Media Corp.*,#                           360,644,543
    2,002,304    Clear Channel Communications, Inc.*                 188,717,152
- --------------------------------------------------------------------------------
                                                                     549,361,695
- --------------------------------------------------------------------------------
Retail - Discount - 1.6%
    6,245,475    Costco Companies, Inc.*                             348,965,916
- --------------------------------------------------------------------------------
Telephone - Long Distance - 1.8%
    3,248,040    AT&T Corp.                                      $   195,085,403
    4,928,725    WorldCom, Inc.*                                     210,857,016
- --------------------------------------------------------------------------------
                                                                     405,942,419
- --------------------------------------------------------------------------------
Television - 0.6%
    3,292,289    Univision Communications, Inc. - Class A*,#         126,135,822
- --------------------------------------------------------------------------------
Total Common Stock (cost $14,749,607,225)                         21,204,201,438
- --------------------------------------------------------------------------------
Money Market - 0%
                 Janus Government Money Market Fund
$   6,000,000      5.58% (cost $6,000,000)                             6,000,000
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 0.9%
                 CIT Holdings
  150,200,000      5.51%, 5/1/98                                     150,200,000
                 Norwest Corp.
   50,000,000      5.49%, 5/15/98                                     49,893,250
- --------------------------------------------------------------------------------
Total Short-Term Corporate Notes (amortized cost $200,093,250)       200,093,250
- --------------------------------------------------------------------------------
Time Deposit - 0.5%
                 First Union Bank North Carolina EDT
  120,000,000      5.50%, 5/1/98 (cost $120,000,000)                 120,000,000
- --------------------------------------------------------------------------------
U.S. Government Agencies - 1.7%
                 Fannie Mae:
   50,000,000      5.43%, 5/13/98                                     49,909,500
   50,000,000      5.75%, 5/13/98                                     49,378,500
   50,000,000      5.70%, 6/8/98                                      49,720,278
   50,000,000      5.70%, 6/30/98                                     49,549,500
   50,000,000      5.75%, 7/21/98                                     49,393,500
   50,000,000      5.75%, 7/24/98                                     49,371,000
   75,000,000      5.75%, 7/30/98                                     73,988,250
- --------------------------------------------------------------------------------
Total U.S. Government Agencies (cost $371,333,264)                   371,310,528
- --------------------------------------------------------------------------------
Total Investments (total cost $15,447,033,739) - 99.3%            21,901,605,216
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 0.7%        146,061,967
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $22,047,667,183
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Canada                                 0.6%                      $   141,743,457
Netherlands                            2.1%                          465,557,953
Sweden                                 0.5%                          109,088,955
Switzerland                            1.9%                          411,494,799
United Kingdom                         6.8%                        1,475,632,266
United States++                       88.1%                       19,298,087,786
- --------------------------------------------------------------------------------
Total                                100.0%                      $21,901,605,216
================================================================================
++Includes Short-Term Securities (84.9% excluding Short-Term Securities)

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                   Currency         Currency        Unrealized
Settlement Date                   Units Sold   Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
Dutch Guilder 7/23/98            450,000,000    $ 223,702,525       ($1,639,311)
- --------------------------------------------------------------------------------
Total                                           $ 223,702,525       ($1,639,311)
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   4
<PAGE>

            JANUS BALANCED FUND Portfolio Manager, Blaine P. Rollins

     I'm glad to report that Janus Balanced Fund continued to post solid returns
this period.  The Fund gained  14.00%  during the first half of our fiscal year,
November 1, 1997,  to April 30,  1998,  versus a 22.50%  increase by the S&P 500
Index. In addition, the Lehman Brothers  Government/Corporate  Bond Index gained
3.64% during the period. All returns include reinvested dividends.
     For the 12 months ended April 30, 1998, Janus Balanced Fund ranked 29th out
of 365 balanced  funds tracked by Lipper  Analytical  Services,  Inc., a leading
mutual fund rating company.(1)
     True to its name,  Janus Balanced Fund maintained  about 40% to 60% each of
stocks and income-producing  securities this period.  However,  stocks primarily
drove the Fund's  performance as the U.S.  stock market was propelled  upward by
low interest rates, benign inflation, and a reevaluation of events in Asia.

Consolidation Trend Buoys Stocks
     As Tom Bailey mentioned in his letter,  industry  consolidation was a trend
that  continued  to evolve  during this half of the year.  I was thrilled by the
Fund's  participation in this trend via its media and  pharmaceutical  stocks. A
reduction in capital  expenditures,  a concentration  in assets for research and
product  development,  and  streamlined  delivery  channels  were  a few  of the
positive effects these companies experienced as a result.
     I was especially  pleased by the strong  performance of CBS Corporation and
believe it excelled as a direct result of consolidation. Acquisitions within the
radio  industry  in  particular  allowed  management  to  leverage a  fixed-cost
structure by sharing  advertising staff and reducing  overhead.  The bottom line
was improved margins and accelerated profits.
     Recent merger and acquisition  activity in the pharmaceutical  industry has
indicated  the  beginning  of what I believe  will be a long-term  trend in this
area. The attempted merger of SmithKline Beecham and Glaxo Wellcome  illustrates
the  growing  need to  control  costs and  focus  research  in order to  enhance
profits.  Although  the merger fell  through and our  SmithKline  Beecham  stock
retreated  somewhat from its highs, I was still satisfied by the stock's overall
performance this period, but ultimately eliminated this position.
     Other investments that met my expectations were in the technology,  retail,
and travel  industries.  Leaders in these  areas of the  market  demonstrated  a
history of  predictable  earnings,  strong cash flow,  and  shareholder-oriented
management.
     Falling short of my expectations  were oil stocks,  hit hard as a result of
lagging demand from the Pacific Rim and conflicts  within OPEC about  production
volume.  Several  major  oil  producers  consequently  cut back on  exploration,
drilling,  and production this period. I therefore  eliminated  positions in the
oil services equipment and deep-water offshore drilling segments,  taking losses
in Schlumberger Ltd. and Transocean Offshore.

Fixed-Income Investments Remain Solid
     On the fixed-income side of the Fund, our investments provided solid yields
and appreciation. I lengthened the Fund's duration to the 7- to 10-year range on
prospects of continued  low interest  rates.  The quality of these  fixed-income
investments  is still  extremely high as the Fund  maintained  positions in U.S.
Treasuries and investment-grade corporate bonds. And in an effort to enhance the
overall risk/return profile of the Fund, I continue to look for opportunities to
add yield through convertibles,  such as our Houston Industries holding,  which,
in addition to its 4.5% yield, should provide us with a 90% upside movement with
Time Warner common stock.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 47.8%                  51.9%
Fixed-Income Securities
  U.S. Treasury Notes                    12.4%                  18.2%
  Investment-Grade
    Corporate Bonds                       8.6%                   6.3%
  High-Yield Corporate Bonds             12.6%                   8.0%
  Foreign Corporate Bonds                  --                    1.4%
  Preferred Stock                        16.7%                  10.6%
Top 10 Equities (% of Assets)            20.0%                  16.6%
Number of Stocks                           54                     87
Cash & Cash Equivalents                   1.9%                   3.6%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Comcast Corp. - Special Class A           3.8%                    --
Dell Computer Corp.                       2.4%                   0.8%
Schweizerishe Lebensversicherungs
  -und Rentenanstalt                      2.0%                   2.4%
Dionex Corp.                              1.9%                   2.5%
Maxim Integrated Products, Inc.           1.8%                    --
Cisco Systems, Inc.                       1.8%                   1.0%
Texas Instruments, Inc.                   1.7%                    --
Linear Technology Corp.                   1.6%                    --
Charles Schwab Corp.                      1.5%                   1.1%
Morgan Stanley, Dean Witter,
  Discover and Co.                        1.5%                    --
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Cruise Lines                              5.8%                   4.4%
Cable Television                          5.4%                   4.2%
Electric - Integrated                     5.1%                    --
Telecommunication Services                4.9%                    --
Computer Software                         4.0%                   3.0%
- --------------------------------------------------------------------------------
Outlook Remains Positive
     Going  forward,  I believe  economic  growth in the U.S. will continue at a
decent pace.  More than likely,  the situation in Asia should keep a lid on U.S.
interest  rates,  creating a positive  environment  for our stocks.  Further,  I
believe  that  deflationary  pressures  from the Far East will likely  lower the
price of goods and commodities.
     Overall,   I  am   confident  in  our   investments   and  believe  we  are
well-positioned  to enjoy solid earnings gains going forward.  To ensure this, I
will continue  visiting  companies,  talking directly with management teams, and
generally  adhering to the in-depth,  hands-on  research that enables us to keep
uncovering great ideas.
     I  appreciate  your  confidence  in our  abilities  and  thank you for your
investment in Janus Balanced Fund.

- --------------------------------------------------------------------------------
(1)  A balanced fund is defined by Lipper as "a fund whose primary  objective is
     to conserve  principal by  maintaining at all times a balanced fund of both
     stocks and bonds. Typically the stock/bond ratio ranges around 60%/40%." As
     of April 30, 1998,  Janus Balanced Fund ranked 16/249 of balanced funds for
     the 3-year period,  and 11/123 for the 5-year period.  Lipper's  ranking is
     based on total  return,  including  reinvestment  of dividends  and capital
     gains for the stated period.
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   5
<PAGE>

            JANUS BALANCED FUND Portfolio Manager, Blaine P. Rollins

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in  Janus   Balanced   Fund,   the  S&P  500  Index  and  the  Lehman   Brothers
Government/Corporate  Bond Index.  Janus Balanced Fund is represented by a solid
blue line.  The S&P 500 Index is  represented by a single dashed black line. The
Lehman  Brothers  Government/Corporate  Bond  Index is  represented  by a single
dotted black line.  The "y" axis reflects the value of the  investment.  The "x"
axis reflects the computation periods from inception, September 1, 1992, through
April 30,  1998.  The upper  right  quadrant  reflects  the ending  value of the
hypothetical investment in Janus Balanced Fund, ($24,997) as compared to the S&P
500 Index  ($30,751)  and the Lehman  Brothers  Government/Corporate  Bond Index
($14,934).  There is a legend  in the upper  left  quadrant  of the graph  which
indicates  Janus  Balanced  Fund's  one-year,   five-year  and  since  inception
(September 1, 1992) average  annual total returns as 31.79%,  16.59% and 17.55%,
respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                 JANUS BALANCED FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 47.8%
- --------------------------------------------------------------------------------
Agricultural Biotechnology - 0.7%
       65,175    Monsanto Co.                                    $     3,446,128
- --------------------------------------------------------------------------------
Airlines - 0.6%
       88,325    Ryanair Holdings PLC (ADR)*                           3,389,472
- --------------------------------------------------------------------------------
Automotive - Truck Parts and Equipment - 1.1%
       88,050    Federal-Mogul Corp.                                   5,695,734
- --------------------------------------------------------------------------------
Cable Television - 3.8%
      553,041    Comcast Corp. - Special Class A                      19,805,781
- --------------------------------------------------------------------------------
Chemicals - Diversified - 1.0%
      186,625    Solutia, Inc.                                         5,295,484
- --------------------------------------------------------------------------------
Circuits - 1.6%
      102,530    Linear Technology Corp.                               8,253,665
- --------------------------------------------------------------------------------
Commercial Banks - 1.7%
       62,975    Northern Trust Corp.                                  4,597,175
       68,825    Star Banc Corp.                                       4,348,880
- --------------------------------------------------------------------------------
                                                                       8,946,055
- --------------------------------------------------------------------------------
Commercial Services - 0.6%
       93,375    Gartner Group, Inc. - Class A*                        3,093,047
- --------------------------------------------------------------------------------
Computer Software - 4.0%
      159,575    Cadence Design Systems, Inc.*                         5,794,567
       67,300    Microsoft Corp.*                                      6,065,412
      154,900    Parametric Technology Co.*                            4,951,959
      116,050    Wind River Systems*                                   4,018,231
- --------------------------------------------------------------------------------
                                                                      20,830,169
- --------------------------------------------------------------------------------
Computers - Micro - 2.4%
      154,595    Dell Computer Corp.*                                 12,483,546
- --------------------------------------------------------------------------------
Containers - Paper and Plastic - 0.3%
       24,550    Sealed Air Corp.*                                     1,543,581
- --------------------------------------------------------------------------------
Cruise Lines - 2.2%
       67,950    Carnival Corp. - Class A                        $     4,726,772
       61,675    Royal Caribbean Cruises, Ltd.                         4,217,028
      157,905    Royal Olympic Cruise Lines, Inc.*                     2,901,504
- --------------------------------------------------------------------------------
                                                                      11,845,304
- --------------------------------------------------------------------------------
Diversified Operations - 2.3%
      198,525    CBS Corp.*                                            7,072,453
       64,850    Roper Industries, Inc.                                2,010,350
      143,441    Siebe PLC                                             3,261,734
- --------------------------------------------------------------------------------
                                                                      12,344,537
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 3.5%
      237,940    Maxim Integrated Products, Inc.*                      9,606,828
      135,750    Texas Instruments, Inc.                               8,696,484
- --------------------------------------------------------------------------------
                                                                      18,303,312
- --------------------------------------------------------------------------------
Electronic Safety Devices - 0.3%
       20,225    Pittway Corp. - Class A                               1,511,819
- --------------------------------------------------------------------------------
Finance - Consumer Loans - 0.8%
       16,745    Beneficial Corp.                                      2,183,129
       13,630    Household International, Inc.                         1,791,493
- --------------------------------------------------------------------------------
                                                                       3,974,622
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 3.0%
      230,200    Charles Schwab Corp.                                  8,057,000
       99,965    Morgan Stanley, Dean Witter, Discover and Co.         7,884,739
- --------------------------------------------------------------------------------
                                                                      15,941,739
- --------------------------------------------------------------------------------
Finance - Other Services - 0.7%
       71,815    HealthCare Financial Partners, Inc.*                  3,617,681
- --------------------------------------------------------------------------------
Human Resources - 1.1%
       83,512    Robert Half International, Inc.*                      4,520,087
       40,025    Romac International, Inc.*                            1,060,663
- --------------------------------------------------------------------------------
                                                                       5,580,750
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   6
<PAGE>

                 JANUS BALANCED FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Instruments - Scientific - 1.9%
      184,325    Dionex Corp.*                                   $     9,838,347
- --------------------------------------------------------------------------------
Life and Health Insurance - 2.0%
       12,602    Schweizerische Lebensversicherungs-und
                   Rentenanstalt                                      10,661,718
- --------------------------------------------------------------------------------
Medical - Drugs - 1.8%
       23,100    Pfizer, Inc.                                          2,629,069
       35,825    Warner-Lambert Co.                                    6,777,642
- --------------------------------------------------------------------------------
                                                                       9,406,711
- --------------------------------------------------------------------------------
Money Center Banks - 3.2%
      107,315    Bank of New York Co., Inc.                            6,338,292
      186,280    Barclays PLC                                          5,375,802
      352,987    Lloyds TSB Group PLC                                  5,296,993
- --------------------------------------------------------------------------------
                                                                      17,011,087
- --------------------------------------------------------------------------------
Multimedia - 0.4%
       44,725    Meredith Corp.                                        1,923,175
- --------------------------------------------------------------------------------
Music/Clubs - 0.6%
      103,320    Steinway Musical Instruments, Inc.*                   3,157,718
- --------------------------------------------------------------------------------
Networking Products - 1.8%
      127,050    Cisco Systems, Inc.*                                  9,306,412
- --------------------------------------------------------------------------------
Power Converters and Power Supply Equipment - 0.5%
       83,050    American Power Conversion Corp.*                      2,673,172
- --------------------------------------------------------------------------------
Radio - 0.8%
       92,440    Heftel Broadcasting Corp. - Class A*                  4,055,805
- --------------------------------------------------------------------------------
Retail - Discount - 1.0%
       91,700    Costco Companies, Inc.*                               5,123,738
- --------------------------------------------------------------------------------
Retail - Regional Department Stores - 0.3%
       39,900    Fred Meyer, Inc.*                                     1,790,513
- --------------------------------------------------------------------------------
Schools - 0.5%
       83,880    Apollo Group, Inc. - Class A*                         2,872,890
- --------------------------------------------------------------------------------
Television - 1.0%
      140,377    Univision Communications, Inc. - Class A*             5,378,194
- --------------------------------------------------------------------------------
Toys - 0.3%
       38,575    Mattel, Inc.                                          1,477,905
- --------------------------------------------------------------------------------
Total Common Stock (cost $189,550,108)                               250,579,811
- --------------------------------------------------------------------------------
Corporate Bonds - 21.2%
- --------------------------------------------------------------------------------
Cable Television - 1.6%
   $4,500,000    Adelphia Communications Corp., 8.375%
                   senior notes, due 2/1/08                            4,466,250
    4,000,000    Lenfest Communications, Inc., 7.625%
                   senior notes, due 2/15/08                           3,990,000
- --------------------------------------------------------------------------------
                                                                       8,456,250
- --------------------------------------------------------------------------------
Chemicals - Diversified - 1.3%
    6,725,000    E.I. du Pont de Nemours and Co., 6.75%
                   notes, due 9/1/07                                   6,943,562
- --------------------------------------------------------------------------------
Circuits - 0.9%
    2,500,000    Analog Devices, Inc., 3.50%
                   subordinated notes, due 12/1/00                     4,737,500
- --------------------------------------------------------------------------------
Computers - Mainframe - 0.8%
    4,000,000    IBM Corp., 6.375%
                   notes, due 6/15/00                                  4,035,000
- --------------------------------------------------------------------------------
Computers - Micro - 1.6%
    8,175,000    Dell Computer Corp., 6.55%
                   senior notes, due 4/15/08                           8,185,219
- --------------------------------------------------------------------------------
Cruise Lines - 0.6%
                 Royal Caribbean Cruises, Ltd.:
    2,050,000      7.00% senior notes, due 10/15/07                    2,083,312
    1,100,000      6.75% senior notes, due 3/15/08                     1,087,625
- --------------------------------------------------------------------------------
                                                                       3,170,937
- --------------------------------------------------------------------------------
Distribution and Wholesale - 0.9%
   $5,000,000    Aviation Sales Co., 8.125%
                   senior subordinated notes, due 2/15/08        $     4,900,000
- --------------------------------------------------------------------------------
Finance - Other Services - 0.3%
    1,800,000    Sears, Roebuck Acceptance Corp., 6.50%
                   notes, due 6/15/00                                  1,813,500
- --------------------------------------------------------------------------------
Medical - Drugs - 0.8%
    4,075,000    Warner-Lambert Co., 6.00%
                   notes, due 1/15/08                                  3,978,219
- --------------------------------------------------------------------------------
Multimedia - 2.3%
    8,000,000    Time Warner, Inc., 8.11%
                   notes, due 8/15/06                                  8,720,000
    3,400,000    Walt Disney Co. (The), 6.375%
                   senior notes, due 3/30/01                           3,442,500
- --------------------------------------------------------------------------------
                                                                      12,162,500
- --------------------------------------------------------------------------------
Radio - 2.4%
    8,000,000    Chancellor Media Corp., 8.125%
                   senior subordinated notes, due 12/15/07             8,010,000
    6,000,000    Jacor Communications, Inc., zero coupon
                   senior notes, due 6/12/11                           4,642,500
- --------------------------------------------------------------------------------
                                                                      12,652,500
- --------------------------------------------------------------------------------
Real Estate Development - 0.3%
    1,500,000    Avatar Holdings, Inc., 7.00%
                   subordinated notes, due 4/1/05                      1,642,500
- --------------------------------------------------------------------------------
Rental Auto/Equipment - 0.5%
    2,525,000    Ryder TRS, Inc., 10.00%
                   senior subordinated notes, due 12/1/06              2,708,063
- --------------------------------------------------------------------------------
Retail - Music Store - 0.6%
    3,020,000    MTS, Inc., 9.375%
                   senior subordinated notes, due 5/1/05+              3,020,000
- --------------------------------------------------------------------------------
Retail - Regional Department Stores - 0.9%
    5,000,000    Fred Meyer, Inc., 7.45%
                   senior notes, due 3/1/08                            4,987,500
- --------------------------------------------------------------------------------
Telecommunication Services - 4.9%
   14,475,000    Level 3 Communications, Inc., 9.125% senior
                   notes, due 5/1/08                                  14,330,250
                 Qwest Communications International, Inc.:
    2,410,000      10.875% senior notes, due 4/1/07                    2,801,625
   12,200,000      zero coupon senior discount notes,
                   due 2/1/08                                          8,372,250
- --------------------------------------------------------------------------------
                                                                      25,504,125
- --------------------------------------------------------------------------------
Television - 0.5%
    2,250,000    Sinclair Broadcast Group, Inc., 10.00%
                   senior subordinated notes, due 9/30/05              2,385,000
- --------------------------------------------------------------------------------
Total Corporate Bonds (cost $110,969,223)                            111,282,375
- --------------------------------------------------------------------------------
Preferred Stock - 16.7%
- --------------------------------------------------------------------------------
Automotive - Truck Parts and Equipment - 1.8%
      130,000    Federal-Mogul Financial Trust, 7.00%+                 9,376,250
- --------------------------------------------------------------------------------
Broadcast Services and Programming - 2.3%
       65,019    TCI Pacific Communications, 5.00%                    11,865,968
- --------------------------------------------------------------------------------
Cruise Lines - 3.0%
      143,753    Royal Caribbean Cruises, Ltd., 7.25%                 15,794,861
- --------------------------------------------------------------------------------
Diversified Operations - 1.3%
    2,700,000    Williams Holdings PLC, 8.00%                          7,087,608
- --------------------------------------------------------------------------------
Electric - Integrated - 5.1%
      388,375    Houston Industries, Inc., 7.00%                      26,943,516
- --------------------------------------------------------------------------------
Telephone - Local - 3.2%
      225,365    US WEST Communications Group, 4.50%                  16,789,693
- --------------------------------------------------------------------------------
Total Preferred Stock (cost $70,567,368)                              87,857,896
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   7
<PAGE>

                 JANUS BALANCED FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
U.S. Government Obligations - 12.4%
                 U.S. Treasury Notes:
$   7,950,000      6.375%, due 5/15/99                           $     8,013,362
    3,000,000      6.00%, due 6/30/99                                  3,015,690
    5,150,000      5.75% due 10/31/00                                  5,167,716
    5,000,000      6.625%, due 4/30/02                                 5,168,600
   10,000,000      5.75%, due 10/31/02                                10,031,200
    9,000,000      6.625%, due 5/15/07                                 9,542,160
   23,275,000      6.125%, due 8/15/07                                23,893,882
- --------------------------------------------------------------------------------
Total U.S. Government Obligations (cost $63,858,046)                  64,832,610
- --------------------------------------------------------------------------------
Total Investments (total cost $434,944,745) - 98.1%                  514,552,692
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 1.9%         10,145,199
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $   524,697,891
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Ireland                                0.6%                        $   3,389,472
Switzerland                            2.1%                           10,661,718
United Kingdom                         4.1%                           21,022,137
United States                         93.2%                          479,479,365
- --------------------------------------------------------------------------------
Total                                100.0%                        $ 514,552,692
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   8
<PAGE>

             JANUS ENTERPRISE FUND Portfolio Manager, James P. Goff

     I'm glad to report that Janus Enterprise Fund regained substantial momentum
for the six-month  period ended April 30, 1998,  posting  returns of 18.15%.  In
comparison, the Standard and Poor's MidCap 400 Index gained 19.17%. Both returns
include reinvested dividends.
     Holding fast to my strategy of investing in midsize companies with dominant
market  presence  and a history of  predictable  earnings  growth  paid off this
period.  During recent months,  the market has begun to recognize the true value
of many of our companies, and, as a result, the Fund's performance improved.

Earnings Growth Perseveres
     These   encouraging    developments    occurred   despite   the   continued
outperformance  of large-cap  stocks over their small and midsize  counterparts,
which Tom Bailey  mentioned in his letter.  I'd like to expand on Tom's comments
in an effort to explain why our outlook is positive.
     The  annual  return  for the S&P 500 Index  during  the past five years has
averaged almost 20% - double its historical  average of 10%.  Because  investors
have been  able to find  robust  earnings  growth in the  largest,  most  liquid
stocks,  the market has been  unwilling to pay a premium for growth from mid-cap
stocks. However, heavy exposure to Asia and exhausted efforts to improve margins
have slowed S&P 500 earnings growth  dramatically to the mid-single  digits.  In
contrast,  the top 20 holdings  in Janus  Enterprise  Fund  delivered a weighted
average  earnings  increase  of 35%  during  the  first  quarter  of '98.  These
companies  have  limited  exposure to Asia and have less  economic  sensitivity;
therefore, I believe they will continue to deliver exceptional earnings growth.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 97.3%                  98.3%
    Foreign                              11.5%                  18.3%
Top 10 Equities (% of Assets)            42.1%                  41.4%
Number of Stocks                           61                     79
Cash & Cash Equivalents                   2.7%                   1.7%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Apollo Group, Inc. - Class A              5.4%                   2.9%
Fastenal Co.                              5.0%                   6.1%
Progressive Corp.                         4.3%                   1.4%
Chancellor Media Corp.                    4.2%                   1.2%
Omnicare, Inc.                            4.2%                   4.0%
J.D. Wetherspoon PLC                      4.1%                   6.6%
Paychex, Inc.                             4.0%                   3.4%
Heftel Broadcasting
  Corp. - Class A                         3.9%                   1.6%
PizzaExpress PLC                          3.8%                   5.5%
Cadence Design Systems, Inc.              3.2%                    --
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Radio                                    10.7%                   5.5%
Schools                                   5.5%                   2.9%
Computer Software                         5.1%                   1.1%
Retail - Building Products                5.0%                   6.1%
Property and Casualty Insurance           4.3%                   1.4%
- --------------------------------------------------------------------------------
Fund Composition Changes Slightly
     Changes  to the Fund  during the first  half of the  fiscal  year  included
increased  weightings  in  the  life  sciences  sector  as  additional  research
resources helped uncover several strong,  mid-cap pharmaceutical  companies.  We
also added to the Fund's technology  position,  although we remain underweighted
relative to our benchmark.
     One  technology  stock we added to the Fund that I'm  particularly  excited
about is Cadence Design  Systems,  which was up 48% since the first of the year.
Cadence is the dominant  provider of software  and  services  used to create new
semiconductor  designs.  Demand for the  company's  products  continues  to grow
steadily,  even when the  semiconductor  business slows. This is a result of the
strong competition between semiconductor  companies to develop advanced products
and their dependency upon software to do so.
     Although it's not a new position,  America Online (AOL) led the performance
among our technology  holdings.  As the leading  provider of Internet access and
content,  AOL is larger  than its  fifteen  nearest  competitors  combined.  The
company has leveraged its dominant  brand among Internet  access  providers with
new revenue streams generated through advertising, commerce, and a long distance
service now offered to AOL subscribers.
     We trimmed our exposure in retail stocks  during the period.  This included
selling our Papa John's  holding,  which,  despite the fact that it continued to
post  strong  results,  I opted to sell  when the  stock  rose and  other,  more
compelling  opportunities  became  available.  Another  retail stock we sold was
Petco  Animal  Supplies,  which  suffered  from  problems  related  to a  recent
acquisition.

Outlook Remains Cautious, but Optimistic
     The Asian  economic  crisis  has  helped to lower  interest  rates and ease
inflationary  pressures around the world, which resulted in robust stock markets
this  period.  However,  I believe two things  actually  drive  stock  prices --
interest  rates  and  earnings.  Even  though  we have  yet to see  any  sign of
inflation,  the labor markets  remain tight in this late stage of our expansion,
and wages are an important  underpinning  for inflationary  pressures.  A modest
uptick in these pressures  could upset the bond market,  which would send yields
higher.
     As I mentioned  earlier,  the downturn in Asia, rising labor costs, and the
strength  of the dollar are  beginning  to slow  earnings  growth  among  larger
companies,  yet growth among our holdings remains strong. As a result,  the Fund
is positioned  to benefit from  investors  shifting  toward  companies  that are
generating higher relative growth.
     I thank you for your continued  investment in Janus  Enterprise Fund, and I
am committed to meeting and exceeding your performance expectations.

- --------------------------------------------------------------------------------
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   9
<PAGE>

             JANUS ENTERPRISE FUND Portfolio Manager, James P. Goff

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus Enterprise Fund and the S&P 400 MidCap Index.  Janus Enterprise Fund is
represented  by a solid blue line.  The S&P 400 MidCap Index is represented by a
single dashed black line. The "y" axis reflects the value of the investment. The
"x" axis reflects the  computation  periods from  inception,  September 1, 1992,
through April 30, 1998.  The upper right  quadrant  reflects the ending value of
the  hypothetical  investment in Janus  Enterprise Fund ($28,843) as compared to
the S&P 400 MidCap Index ($29,051). There is a legend in the upper left quadrant
of the graph which indicates Janus  Enterprise  Fund's  one-year,  five-year and
since  inception  (September  1, 1992)  average  annual total returns as 43.04%,
17.59% and 20.56%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                JANUS ENTERPRISE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 97.3%
- --------------------------------------------------------------------------------
Advertising Sales - 1.9%
      359,098    Outdoor Systems, Inc.*                          $    11,401,362
- --------------------------------------------------------------------------------
Airlines - 1.3%
      197,016    Ryanair Holdings PLC (ADR)*                           7,560,489
- --------------------------------------------------------------------------------
Applications Software - 1.0%
      127,930    PeopleSoft, Inc.*                                     5,948,745
- --------------------------------------------------------------------------------
Cable Television - 2.7%
      189,620    Comcast Corp. - Special Class A                       6,790,766
      249,039    US WEST Media Group*                                  9,401,222
- --------------------------------------------------------------------------------
                                                                      16,191,988
- --------------------------------------------------------------------------------
Cellular Telecommunications - 0.8%
      241,475    Western Wireless Corp. - Class A                      4,708,762
- --------------------------------------------------------------------------------
Circuits - 3.2%
      274,790    SIPEX Corp.*                                          5,461,451
      234,770    Vitesse Semiconductor Corp.*                         13,543,294
- --------------------------------------------------------------------------------
                                                                      19,004,745
- --------------------------------------------------------------------------------
Commercial Banks - 4.3%
       11,985    First Empire State Corp.                              6,112,350
      139,210    Northern Trust Corp.                                 10,162,330
      140,090    Star Banc Corp.                                       8,851,937
- --------------------------------------------------------------------------------
                                                                      25,126,617
- --------------------------------------------------------------------------------
Commercial Services - 4.2%
       47,745    Gartner Group, Inc. - Class A*                        1,581,553
      431,922    Paychex, Inc.                                        23,458,764
- --------------------------------------------------------------------------------
                                                                      25,040,317
- --------------------------------------------------------------------------------
Computer Software - 5.1%
      511,790    Cadence Design Systems, Inc.*                   $    18,584,374
      363,040    Parametric Technology Co.*                           11,605,935
- --------------------------------------------------------------------------------
                                                                      30,190,309
- --------------------------------------------------------------------------------
Containers - Paper and Plastic - 0.5%
       46,335    Sealed Air Corp.*                                     2,913,313
- --------------------------------------------------------------------------------
Cruise Lines - 1.2%
      100,077    Royal Caribbean Cruises, Ltd.                         6,842,765
- --------------------------------------------------------------------------------
Diversified Financial Services - 2.7%
      149,875    American Capital Strategies, Ltd.                     3,390,922
      203,922    HealthCare Financial Partners, Inc.*                 10,272,571
       79,130    Heller Financial, Inc.*                               2,136,510
- --------------------------------------------------------------------------------
                                                                      15,800,003
- --------------------------------------------------------------------------------
Drug Delivery Systems - 1.2%
      144,170    ALZA Corp.*                                           6,911,149
- --------------------------------------------------------------------------------
Electric - Generation - 2.8%
      303,515    AES Corp.*                                           16,750,234
- --------------------------------------------------------------------------------
Electric Products - 0.7%
      154,015    Littelfuse, Inc.*                                     3,888,879
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 1.5%
      219,640    Maxim Integrated Products, Inc.*                      8,867,965
- --------------------------------------------------------------------------------
Electronic Connectors - 0.5%
      121,023    Berg Electronics Corp.*                               2,881,860
- --------------------------------------------------------------------------------
Finance - Consumer Loans - 1.2%
      234,005    Medallion Financial Corp.                             6,990,899
- --------------------------------------------------------------------------------
Finance - Credit Card - 0.5%
       32,285    Capital One Financial Corp.                           3,101,378
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 1.8%
      298,492    Charles Schwab Corp.                                 10,447,220
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   10
<PAGE>

                JANUS ENTERPRISE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Finance - Leasing Companies - 0.5%
       46,705    FINOVA Group, Inc.                              $     2,735,162
- --------------------------------------------------------------------------------
Finance - Mortgage Loan Banker - 0.6%
      309,815    Capital Trust - Class A*                              3,485,419
- --------------------------------------------------------------------------------
Finance - Other Services - 0.1%
        6,665    Newcourt Credit Group, Inc.                             327,418
- --------------------------------------------------------------------------------
Food - Confectionary - 0.5%
       34,000    Wrigley (Wm.) Jr., Co.                                3,026,000
- --------------------------------------------------------------------------------
Garden Products - 0.7%
      233,385    Metromedia International Group, Inc.*                 3,880,026
- --------------------------------------------------------------------------------
Human Resources - 2.7%
    1,581,195    Capita Group PLC**                                   13,284,884
       48,620    Robert Half International, Inc.*                      2,631,558
- --------------------------------------------------------------------------------
                                                                      15,916,442
- --------------------------------------------------------------------------------
Internet Content - 0.3%
       49,090    At Home Corp. - Class A*                              1,635,311
- --------------------------------------------------------------------------------
Internet Software - 2.5%
      185,905    America Online, Inc.*                                14,872,400
- --------------------------------------------------------------------------------
Life and Health Insurance - 0.5%
       83,320    Protective Life Corp.                                 3,093,255
- --------------------------------------------------------------------------------
Medical - Drugs - 2.0%
      220,144    Medimmune, Inc.*                                     11,612,596
- --------------------------------------------------------------------------------
Medical - Generic Drugs - 1.1%
      152,740    Watson Pharmaceuticals, Inc.*                         6,567,820
- --------------------------------------------------------------------------------
Medical Instruments - 2.1%
      144,895    Sofamor Danek Group, Inc.*                           12,714,536
- --------------------------------------------------------------------------------
Music/Clubs - 0.1%
       12,870    SFX Entertainment, Inc. - Class A*                      444,015
- --------------------------------------------------------------------------------
Pharmacy Services - 4.2%
      725,740    Omnicare, Inc.                                       24,856,595
- --------------------------------------------------------------------------------
Property and Casualty Insurance - 4.3%
      187,675    Progressive Corp.                                    25,418,233
- --------------------------------------------------------------------------------
Publishing - Periodicals - 0.4%
      122,795    Ziff-Davis, Inc.*                                     2,210,310
- --------------------------------------------------------------------------------
Radio - 10.7%
      527,665    Chancellor Media Corp.*                              25,031,108
      132,750    Clear Channel Communications, Inc.*                  12,511,688
      529,510    Heftel Broadcasting Corp. - Class A*                 23,232,251
       41,615    Jacor Communications, Inc.*                           2,366,853
- --------------------------------------------------------------------------------
                                                                      63,141,900
- --------------------------------------------------------------------------------
Resorts and Theme Parks - 1.5%
      164,885    Premier Parks, Inc.*                                  9,171,728
- --------------------------------------------------------------------------------
Retail - Building Products - 5.0%
      530,635    Fastenal Co.                                         29,682,395
- --------------------------------------------------------------------------------
Retail - Catalog Shopping - 1.3%
       87,395    Barnett, Inc.*                                        1,769,749
      114,959    MSC Industrial Direct Co., Inc. - Class A*            5,848,539
- --------------------------------------------------------------------------------
                                                                       7,618,288
- --------------------------------------------------------------------------------
Retail - Pubs - 4.1%
    4,511,337    J.D. Wetherspoon PLC**                               24,288,317
- --------------------------------------------------------------------------------
Retail - Restaurants - 3.8%
    1,722,290    PizzaExpress PLC**                                   22,497,413
- --------------------------------------------------------------------------------
Schools - 5.5%
      932,852    Apollo Group, Inc. - Class A*                        31,950,164
       16,140    DeVry, Inc.*                                            611,303
- --------------------------------------------------------------------------------
                                                                      32,561,467
- --------------------------------------------------------------------------------
Super-Regional Banks - 0.9%
       32,800    Fleet Financial Group, Inc.                     $     2,833,100
       64,410    KeyCorp                                               2,556,272
- --------------------------------------------------------------------------------
                                                                       5,389,372
- --------------------------------------------------------------------------------
Telecommunication Equipment - 0.3%
       40,000    RELTEC Corp.*                                         1,595,000
- --------------------------------------------------------------------------------
Television - 2.5%
      388,858    Univision Communications, Inc. - Class A*            14,898,122
- --------------------------------------------------------------------------------
Total Common Stock (cost $417,207,377)                               574,208,539
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 2.8%
                 Household Finance Corp.
$  16,400,000      5.51%, 5/1/98 (amortized cost $16,400,000)         16,400,000
- --------------------------------------------------------------------------------
Total Investments (total cost $433,607,377) - 100.1%                 590,608,539
- --------------------------------------------------------------------------------
Liabilities, net of Cash, Receivables and Other Assets - (0.1%)        (692,907)
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $   589,915,632
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Canada                                  --                         $     327,418
Ireland                                1.3%                            7,560,489
United Kingdom                        10.2%                           60,070,613
United States++                       88.5%                          522,650,019
- --------------------------------------------------------------------------------
Total                                100.0%                        $ 590,608,539
================================================================================
++Includes Short-Term Securities (85.7% excluding Short-Term Securities)

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                   Currency         Currency        Unrealized
Settlement Date                   Units Sold   Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
British Pound 5/11/98             10,697,000    $  17,876,826         ($344,351)
British Pound 8/14/98              1,000,000        1,663,700           (30,300)
British Pound 10/7/98             13,200,000       21,910,680           (25,080)
- --------------------------------------------------------------------------------
Total                                           $  41,451,206         ($399,731)
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   11
<PAGE>

         JANUS EQUITY INCOME FUND Portfolio Manager, Blaine P. Rollins

     During the first half of our fiscal  year,  November 1, 1997,  to April 30,
1998, Janus Equity Income Fund returned 19.90%,  while the Standard & Poor's 500
Index  gained  22.50%  for the same  period.  Both  returns  include  reinvested
dividends.
     I'm also  pleased to report that for the 12 months  ending  April 30, 1998,
the Fund ranked 11th out of 197 equity income funds tracked by Lipper Analytical
Services, Inc., a leading mutual fund rating company.(1)
     I continued  to follow a strategy  this period that  included  investing in
income-producing equity securities of smaller, lesser-known companies as well as
large industry leaders.  Because I saw the best income opportunities in the big,
brand-name  companies,  I leaned more toward large-cap stocks,  which once again
outperformed their smaller counterparts during the half.

Industry Leaders Continue to Excel
     Microsoft,  Cisco Systems,  and Dell Computer Corp. are all large-caps that
contributed  substantially  to the Fund's  overall  performance.  One reason I'm
enthusiastic  about  Dell is  because  I  believe  it may  have  one of the best
business  models in its  industry.  This  company  builds  computers to customer
specifications,  thus  eliminating  the need to maintain  inventory.  During the
first quarter alone, Dell recorded a 61% increase in its stock price.
     One-on-one  meetings  with  the  CEOs  and  CFOs of most of our  technology
holdings over the last six months reaffirmed my confidence in this industry as a
core segment within the Fund, and I increased weightings in these companies as a
result.
     In regard to our retail  stocks,  we experienced  significant  appreciation
during the half in part  because of negative  events in Asia.  Investors  sought
refuge from the "Asian Flu" in this somewhat  insulated  business  segment,  and
valuations of these stocks rose. Upon passing our price targets,  I sold some of
these  positions at a  significant  profit,  including  Family Dollar and Dayton
Hudson. I did,  however,  hold onto a few other stocks that had higher multiples
because of their  proven  capacity  to produce  value at  consistently  positive
rates.
     Unfortunately,  the downturn in the Far East had a very different effect on
the oil services industry.  These stocks were hit by lagging demand from Asia in
addition  to  conflicts  within  OPEC  and  the  warmest  winter  on  record.  I
consequently eliminated the Fund's position in this industry at a loss.

Consolidation Boosts Individual Stock Performance
     Industry  consolidation  was a popular theme this period and had a positive
influence  on several of our  stocks in the  media,  pharmaceutical,  and travel
industries.  In particular, I found developments in the drug sector made for one
of the  most  interesting  consolidation  stories.  Industry-wide  research  and
development  dollars are increasingly  becoming  diluted and  undisciplined as a
result of too many companies  chasing too many products.  However,  the combined
focus of Pfizer's and  Warner-Lambert's  research and  development  and delivery
channels is a step toward  rectifying  the problem and has boosted my confidence
in the future earnings of these companies.
     On the income  side of things,  I continue to seek  investments  that offer
steady dividends and  appreciation.  Many of our holdings provided both of these
results, helping to enhance the Fund's risk/return profile. I'm also looking for
ways to add yield through convertibles,  such as with Houston Industries,  which
is one of our largest fixed-income positions.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 68.4%                  87.6%
Fixed-Income Securities
  Investment-Grade
    Corporate Bonds                       4.5%                   0.8%
  High-Yield/High-Risk
    Corporate Bonds                       2.9%                    --
  Preferred Stock                        19.1%                   6.5%
Top 10 Equities (% of Assets)            27.1%                  23.7%
Number of Stocks                           57                    111
Cash & Cash Equivalents                   5.1%                   5.1%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Comcast Corp. - Special Class A           5.0%                    --
Dell Computer Corp.                       3.0%                   1.2%
Maxim Integrated Products, Inc.           2.7%                   0.4%
Univision Communications, Inc.
  - Class A                               2.7%                    --
Schweizerishe Lebensverischerungs
  - und Rentenanstalt                     2.5%                   3.4%
Linear Technology Corp.                   2.5%                   0.5%
Heftel Broadcasting Corp.
  - Class A                               2.3%                    --
Texas Instruments, Inc.                   2.2%                   1.6%
Morgan Stanley, Dean Witter,
  Discover and Co.                        2.1%                    --
Cisco Systems, Inc.                       2.1%                   1.2%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Cable Television                         10.8%                   4.5%
Money Center Banks                        6.5%                   3.5%
Computer Software                         5.3%                   4.2%
Telephone - Local                         5.2%                   1.9%
Circuits                                  5.0%                   0.9%
- --------------------------------------------------------------------------------
Going Forward
     My outlook for the economy is generally favorable. I anticipate that ailing
Asian  economies  will help keep  prices  down on imports  in the U.S.,  and low
interest rates combined with dormant  inflation should provide an environment in
which financial markets thrive.
     Having said that, I remain committed to investing in businesses that should
do well  despite  economic  and market  pressures.  Our  fundamental,  bottom-up
analysis  combined with in-depth,  hands-on research is what ultimately leads us
to these  companies  and is  responsible  for the  solid  results  this fund has
delivered to date.
     In  closing,  I'd  like to  express  my  appreciation  for  your  continued
investment in Janus Equity Income Fund.

- --------------------------------------------------------------------------------
(1)  An  equity  income  fund  is  defined  by  Lipper  as "a fund  which  seeks
     relatively  high current income and growth of income through  investing 60%
     or more of its portfolio in equities."  Lipper's  ranking is based on total
     return,  including  reinvestment  of  dividends  and capital  gains for the
     stated period.
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   12
<PAGE>

         JANUS EQUITY INCOME FUND Portfolio Manager, Blaine P. Rollins

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus Equity  Income Fund and the S&P 500 Index.  Janus Equity Income Fund is
represented  by a solid blue line.  The S&P 500 Index is represented by a single
dashed black line.  The "y" axis reflects the value of the  investment.  The "x"
axis reflects the  computation  periods from inception,  June 28, 1996,  through
April 30,  1998.  The upper  right  quadrant  reflects  the ending  value of the
hypothetical investment in Janus Equity Income Fund ($17,569) as compared to the
S&P 500 Index  ($17,142).  There is a legend in the upper left  quadrant  of the
graph which  indicates  Janus Equity Income Fund's  one-year and since inception
(June 28, 1996) average annual total returns as 43.56% and 35.99%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

              JANUS EQUITY INCOME FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 68.4%
- --------------------------------------------------------------------------------
Agricultural Biotechnology - 0.7%
       17,275    Monsanto Co.                                    $       913,416
- --------------------------------------------------------------------------------
Airlines - 1.2%
       43,125    Ryanair Holdings PLC (ADR)*                           1,654,922
- --------------------------------------------------------------------------------
Automotive - Truck Parts and Equipment - 0.9%
       19,980    Federal-Mogul Corp.                                   1,292,456
- --------------------------------------------------------------------------------
Cable Television - 5.1%
      193,509    Comcast Corp. - Special Class A                       6,930,041
        6,887    Tele-Communications, Inc. - Class A*                    222,106
- --------------------------------------------------------------------------------
                                                                       7,152,147
- --------------------------------------------------------------------------------
Chemicals - Diversified - 2.3%
       17,585    E.I. du Pont de Nemours and Co.                       1,280,408
       65,545    Solutia, Inc.                                         1,859,839
- --------------------------------------------------------------------------------
                                                                       3,140,247
- --------------------------------------------------------------------------------
Circuits - 2.5%
       42,840    Linear Technology Corp.                               3,448,620
- --------------------------------------------------------------------------------
Commercial Banks - 2.5%
        2,695    First Empire State Corp.                              1,374,450
       15,715    Northern Trust Corp.                                  1,147,195
       15,150    Star Banc Corp.                                         957,291
- --------------------------------------------------------------------------------
                                                                       3,478,936
- --------------------------------------------------------------------------------
Commercial Services - 0.9%
       36,950    Gartner Group, Inc. - Class A*                        1,223,969
- --------------------------------------------------------------------------------
Computer Software - 5.3%
       56,535    Cadence Design Systems, Inc.*                         2,052,924
       20,250    Microsoft Corp.*                                      1,825,031
       64,405    Parametric Technology Co.*                            2,058,947
       44,225    Wind River Systems*                                   1,531,291
- --------------------------------------------------------------------------------
                                                                       7,468,193
- --------------------------------------------------------------------------------
Computers - Micro - 3.0%
       50,970    Dell Computer Corp.*                            $     4,115,828
- --------------------------------------------------------------------------------
Containers - Paper and Plastic - 0.3%
        6,800    Sealed Air Corp.*                                       427,550
- --------------------------------------------------------------------------------
Cruise Lines - 2.5%
       20,150    Carnival Corp. - Class A                              1,401,684
       31,459    Royal Caribbean Cruises, Ltd.                         2,151,009
- --------------------------------------------------------------------------------
                                                                       3,552,693
- --------------------------------------------------------------------------------
Diversified Operations - 2.4%
       60,070    CBS Corp.*                                            2,139,994
       15,675    Roper Industries, Inc.                                  485,925
       33,421    Siebe PLC                                               759,967
- --------------------------------------------------------------------------------
                                                                       3,385,886
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 4.9%
       94,490    Maxim Integrated Products, Inc.*                      3,815,034
       48,600    Texas Instruments, Inc.                               3,113,438
- --------------------------------------------------------------------------------
                                                                       6,928,472
- --------------------------------------------------------------------------------
Finance - Consumer Loans - 1.2%
        4,260    Beneficial Corp.                                        555,398
        8,020    Household International, Inc.                         1,054,129
- --------------------------------------------------------------------------------
                                                                       1,609,527
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 4.0%
       75,185    Charles Schwab Corp.                                  2,631,475
       38,105    Morgan Stanley, Dean Witter, Discover and Co.         3,005,532
- --------------------------------------------------------------------------------
                                                                       5,637,007
- --------------------------------------------------------------------------------
Finance - Other Services - 1.8%
       47,785    HealthCare Financial Partners, Inc.*                  2,407,169
        1,740    Newcourt Credit Group, Inc.                              85,478
- --------------------------------------------------------------------------------
                                                                       2,492,647
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   13
<PAGE>

              JANUS EQUITY INCOME FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Human Resources - 2.1%
       31,637    Robert Half International, Inc.*                $     1,712,353
       46,050    Romac International, Inc.*                            1,220,325
- --------------------------------------------------------------------------------
                                                                       2,932,678
- --------------------------------------------------------------------------------
Instruments - Scientific - 2.0%
       52,775    Dionex Corp.*                                         2,816,866
- --------------------------------------------------------------------------------
Life and Health Insurance - 2.5%
        4,116    Schweizerische Lebensversicherungs-und
                   Rentenanstalt                                       3,482,275
- --------------------------------------------------------------------------------
Medical - Drugs - 2.0%
        8,515    Pfizer, Inc.                                            969,113
        9,600    Warner-Lambert Co.                                    1,816,200
- --------------------------------------------------------------------------------
                                                                       2,785,313
- --------------------------------------------------------------------------------
Money Center Banks - 6.5%
       41,185    Bank of New York Co., Inc.                            2,432,489
       14,800    BankAmerica Corp.                                     1,258,000
       45,292    Barclays PLC                                          1,307,069
      106,954    Lloyds TSB Group PLC                                  1,604,973
        1,572    UBS                                                   2,532,069
- --------------------------------------------------------------------------------
                                                                       9,134,600
- --------------------------------------------------------------------------------
Multimedia - 0.4%
       14,275    Meredith Corp.                                          613,825
- --------------------------------------------------------------------------------
Music/Clubs - 0.8%
       36,530    Steinway Musical Instruments, Inc.*                   1,116,448
- --------------------------------------------------------------------------------
Networking Products - 2.1%
       39,225    Cisco Systems, Inc.*                                  2,873,231
- --------------------------------------------------------------------------------
Radio - 2.3%
       72,930    Heftel Broadcasting Corp. - Class A*                  3,199,804
- --------------------------------------------------------------------------------
Retail - Discount - 1.7%
       42,030    Costco Companies, Inc.*                               2,348,426
- --------------------------------------------------------------------------------
Retail - Regional Department Stores - 0.9%
       28,922    Fred Meyer, Inc.*                                     1,297,875
- --------------------------------------------------------------------------------
Schools - 0.6%
       26,040    Apollo Group, Inc. - Class A*                           891,870
- --------------------------------------------------------------------------------
Television - 2.7%
       98,318    Univision Communications, Inc. - Class A*             3,766,808
- --------------------------------------------------------------------------------
Toys - 0.3%
       12,425    Mattel, Inc.                                            476,033
- --------------------------------------------------------------------------------
Total Common Stock(cost $76,662,959)                                  95,658,568
- --------------------------------------------------------------------------------
Corporate Bonds - 7.4%
- --------------------------------------------------------------------------------
Cable Television - 0.8%
   $1,150,000    Adelphia Communications Corp., 8.375%
                   senior notes, due 2/1/08                            1,141,375
- --------------------------------------------------------------------------------
Circuits - 2.5%
    1,850,000    Analog Devices, Inc., 3.50%
                   subordinated notes, due 12/1/00                     3,505,750
- --------------------------------------------------------------------------------
Drug Delivery Systems - 2.0%
    2,000,000    ALZA Corp., 5.00%
                   subordinated debentures, due 5/1/06                 2,752,500
- --------------------------------------------------------------------------------
Radio - 1.3%
    2,410,000    Jacor Communications, Inc., zero coupon senior
                   notes, due 6/12/11                                  1,864,738
- --------------------------------------------------------------------------------
Real Estate Development - 0.8%
    1,000,000    Avatar Holdings, Inc., 7.00%
                   subordinated notes, due 4/1/05                      1,095,000
- --------------------------------------------------------------------------------
Total Corporate Bonds (cost $9,871,975)                               10,359,363
- --------------------------------------------------------------------------------
Preferred Stock - 19.1%
- --------------------------------------------------------------------------------
Automotive - Truck Parts and Equipment - 2.3%
       45,000    Federal-Mogul Financial Trust, 7.00%+           $     3,245,625
- --------------------------------------------------------------------------------
Broadcast Services and Programming - 3.4%
       26,098    TCI Pacific Communications, 5.00%                     4,762,886
- --------------------------------------------------------------------------------
Cable Television - 4.9%
       99,550    Houston Industries, Inc., 7.00%                       6,906,281
- --------------------------------------------------------------------------------
Cruise Lines - 2.3%
       28,645    Royal Caribbean Cruises, Ltd., 7.25%                  3,147,369
- --------------------------------------------------------------------------------
Radio - 1.0%
       14,500    Chancellor Media Corp., $3.00                         1,417,375
- --------------------------------------------------------------------------------
Telephone - Local - 5.2%
       98,157    US WEST Communications Group, 4.50%                   7,312,697
- --------------------------------------------------------------------------------
Total Preferred Stock (cost $22,888,386)                              26,792,233
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 3.6%
             Prudential Funding Corp.
$   5,100,000      5.45%, 5/1/98 (amortized cost $5,100,000)           5,100,000
- --------------------------------------------------------------------------------
Total Investments (total cost $114,523,320) - 98.5%                  137,910,164
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 1.5%          2,031,623
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $   139,941,787
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Ireland                                1.2%                        $   1,654,922
Switzerland                            4.3%                            6,014,344
United Kingdom                         2.7%                            3,672,009
United States++                       91.8%                          126,568,889
- --------------------------------------------------------------------------------
Total                                100.0%                        $ 137,910,164
================================================================================
++Includes Short-Term Securities (88.1% excluding Short-Term Securities)

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   14
<PAGE>

        JANUS GROWTH AND INCOME FUND Portfolio Manager, David J. Corkins

     Your fund performed well in the first half of our fiscal year,  November 1,
1997, to April 30, 1998. I made  relatively few changes in the  construction  of
the Fund,  which  remains  primarily  focused in about 60 stocks.  These  stocks
caused the Fund to gain 19.66% during this period compared with the Standard and
Poor's  500  Index,  which  returned  22.50%.  All  returns  include  reinvested
dividends.  The  results  placed your fund 20th out of 657, or in the top 3%, of
all growth and income funds in the Lipper  Analytical  Services category for the
12 months ended April 30, 1998.(1)
     When the underlying  fundamentals  of the stocks in the Fund are strong and
getting  stronger,  I find my role as portfolio  manager  similar to that of the
famed Casey  Stengel who claimed  that,  as manager of a baseball  team, he "got
paid for home runs that other fellows hit." I would like to highlight several of
the "home run"  holdings in your fund that  performed  well and continue to have
bright future economics. Many of these holdings illustrate what we look for in a
good investment:  a top-flight  management team focused on shareholder  value, a
business  that  is not  capital  intensive,  and  favorable  long-term  economic
prospects.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 95.2%                  92.4%
  Foreign                                 5.8%                   8.0%
  European                                5.8%                   7.8%
Fixed-Income Securities                   0.7%                    --
Top 10 Equities (% of Assets)            31.0%                  33.9%
Number of Stocks                           77                     64
Cash & Cash Equivalents                   4.1%                   7.6%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Pfizer, Inc.                              3.7%                   3.3%
Time Warner, Inc.                         3.5%                   2.7%
Warner-Lambert Co.                        3.4%                   4.0%
CBS Corp.                                 3.4%                    --
Dell Computer Corp.                       3.0%                   3.0%
Comcast Corp. - Special Class A           2.9%                    --
Microsoft Corp.                           2.9%                   2.3%
BankAmerica Corp.                         2.8%                   1.6%
General Electric Co.                      2.7%                   2.6%
Cisco Systems, Inc.                       2.7%                   1.8%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Medical - Drugs                          10.7%                  10.3%
Diversified Operations                    8.8%                   6.4%
Cable Television                          7.2%                   1.1%
Computer Software                         6.7%                   4.8%
Multimedia                                4.3%                   2.7%
- --------------------------------------------------------------------------------
Leaders Identified by Strong Fundamentals
     The combined  strength of our  technology,  pharmaceutical,  and  financial
services holdings was the biggest reason for the Fund's strong gain this period.
Dell  Computer,   Cisco  Systems,  and  Microsoft  were  significant  technology
holdings,  while  Pfizer  and  Warner-Lambert  captured  the  spotlight  in  the
pharmaceutical sector.
     Michael Dell, the CEO of Dell Computer, was our favorite Babe Ruth home run
hitter for the period,  producing a return of more than 100%.  What made this an
attractive  investment?  Dell's  "build-to-order"  strategy  allows  it  to  use
negative working capital - it finances the day-to-day  operations of the company
with other people's money.  Thus, this simple  computer  manufacturer  generates
100%+ returns on equity.
     Cisco Systems, the dominant network equipment supplier, and Microsoft,  the
powerhouse operating systems provider,  also performed well, returning more than
35%.  Both  companies  dominate  their  fast-growing  niches and benefit  from a
booming demand for Internet services and personal computers.
     Pfizer, as our largest pharmaceutical  holding,  returned almost 60% during
the  period.  There are two main  reasons I remain  optimistic  on  Pfizer:  Its
growing  expertise as a marketer makes it the "partner of choice" for other drug
companies who need better  distribution  of  blockbuster  drugs,  as well as its
focused  research  and  development   pipeline.   Warner-Lambert's   Lipitor,  a
cholesterol-reducing  drug,  had the most  successful  drug launch in history by
leveraging the strength of Pfizer's market-leading sales force.

Financial Stocks Ride Consolidation Wave
     Both BankAmerica and Citicorp, two significant bank holdings,  outperformed
the  market  because  of  continued  consolidation  in  the  financial  services
industry.  Citicorp  is merging  with  Travelers  Group in a $76  billion  deal,
creating the world's largest financial  services company.  BankAmerica  followed
suit a week later with news of its union with  NationsBank to create the largest
bank in the United States.
     I don't  characterize  banking as a great  business;  it is  essentially  a
commodity, because your money is the same as mine. Banks have also been lemmings
in their compulsive need to play follow-the-leader and exacerbate credit quality
cycles.  However,  I am  optimistic  about the  consolidation  in the  financial
services  industry.  The mergers  and stock  buybacks,  which are so  prevalent,
remove excess capital, and the new corporations are more diverse  geographically
with a stronger  business mix and balance sheet. We are only in the third inning
of the  consolidation  game - there are still  11,000  banks and  thrifts in the
United States.

Notable Performance of Foreign Holdings
     Although we had a limited number of foreign stocks in the Fund this period,
the majority of those outperformed. Porsche, the German sports car manufacturer,
appreciated 80% because of cheaper  production methods and strong demand for new
models.  BCI, an Italian bank,  almost doubled as it restructured its operations
and gained share in the fast-growing mutual fund business.
     We had few stocks that significantly underperformed.  I reduced several oil
services  positions during the fourth quarter before the dramatic decline in oil
prices and eventually  eliminated these positions  entirely.  I also trimmed our
position in Eli Lilly because of a slow launch of its new osteoporosis drug.
     More important than market predictions is my confidence that no matter what
direction the markets move, the underlying  fundamentals of the companies in our
Fund should remain solid. This is a result of the intensive  research the entire
Janus  portfolio  management team conducts to help uncover these great companies
in the first place.
     Thank you for your continued investment in Janus Growth and Income Fund.

- --------------------------------------------------------------------------------
(1)  Lipper  Analytical  Services,  Inc. defines a growth and income fund as one
     that "combines a growth of earnings  orientation and an income  requirement
     for level and/or rising  dividends." As of April 30, 1998, Janus Growth and
     Income Fund ranked 4/431 of growth and income  funds for the 3-year  period
     and 13/260 for the 5-year  period.  The  ranking is based on total  return,
     including  reinvestment  of  dividends  and  capital  gains for the  stated
     period.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   15
<PAGE>

        JANUS GROWTH AND INCOME FUND Portfolio Manager, David J. Corkins

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus  Growth and Income Fund and the S&P 500 Index.  Janus Growth and Income
Fund is  represented by a solid blue line. The S&P 500 Index is represented by a
single dashed black line. The "y" axis reflects the value of the investment. The
"x" axis reflects the computation periods from inception,  May 15, 1991, through
April 30,  1998.  The upper  right  quadrant  reflects  the ending  value of the
hypothetical investment in Janus Growth and Income Fund ($39,776) as compared to
the S&P 500 Index ($35,948). There is a legend in the upper left quadrant of the
graph which  indicates  Janus Growth and Income Fund's  one-year,  five-year and
since  inception (May 15, 1991) average  annual total returns as 47.82%,  23.10%
and 21.95%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

            JANUS GROWTH AND INCOME FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 92.0%
- --------------------------------------------------------------------------------
Advertising Sales - 1.1%
      900,001    Outdoor Systems, Inc.*                          $    28,575,032
- --------------------------------------------------------------------------------
Agricultural Biotechnology - 1.4%
      725,000    Monsanto Co.                                         38,334,375
- --------------------------------------------------------------------------------
Agricultural Operations - 2.1%
    1,224,961    Delta and Pine Land Co.                              56,424,766
- --------------------------------------------------------------------------------
Airlines - 1.0%
      310,000    UAL Corp.*                                           27,028,125
- --------------------------------------------------------------------------------
Automotive - Cars and Light Trucks - 1.5%
      525,000    Ford Motor Co.                                       24,051,562
      325,000    Renault S.A.*,**                                     15,067,891
- --------------------------------------------------------------------------------
                                                                      39,119,453
- --------------------------------------------------------------------------------
Automotive - Truck Parts and Equipment - 0.7%
      300,000    Federal-Mogul Corp.                                  19,406,250
- --------------------------------------------------------------------------------
Beverages - Non-Alcoholic - 2.6%
    1,880,000    Coca-Cola Enterprises, Inc.                          70,970,000
- --------------------------------------------------------------------------------
Cable Television - 7.2%
    2,150,000    Comcast Corp. - Special Class A                      76,996,875
      397,315    Cox Communications, Inc. - Class A*                  17,730,182
    1,725,000    Tele-Communications, Inc. - Class A*                 55,631,250
    1,146,410    US WEST Media Group*                                 43,276,977
- --------------------------------------------------------------------------------
                                                                     193,635,284
- --------------------------------------------------------------------------------
Cellular Telecommunications - 0.6%
    2,000,000    Telecom Italia S.p.A.**                              15,062,500
- --------------------------------------------------------------------------------
Chemicals - Diversified - 3.0%
      375,000    E.I. du Pont de Nemours and Co.                      27,304,687
      270,000    Imperial Chemical Industries PLC (ADR)               19,625,625
    1,200,000    Solutia, Inc.                                        34,050,000
- --------------------------------------------------------------------------------
                                                                      80,980,312
- --------------------------------------------------------------------------------
Chemicals - Specialty - 1.3%
      650,000    Cytec Industries, Inc.*                         $    35,587,500
- --------------------------------------------------------------------------------
Circuits - 0.7%
      450,000    Analog Devices, Inc.*                                17,521,875
- --------------------------------------------------------------------------------
Commercial Banks - 1.4%
      585,000    Star Banc Corp.                                      36,964,688
- --------------------------------------------------------------------------------
Computer Software - 6.7%
    1,225,565    Cadence Design Systems, Inc.*                        44,503,329
      850,000    Microsoft Corp.*                                     76,606,250
    1,161,280    Parametric Technology Co.*                           37,124,670
      610,000    Wind River Systems*                                  21,121,250
- --------------------------------------------------------------------------------
                                                                     179,355,499
- --------------------------------------------------------------------------------
Computers - Micro - 3.0%
    1,000,000    Dell Computer Corp.*                                 80,750,000
- --------------------------------------------------------------------------------
Containers - Paper and Plastic - 1.1%
      450,140    Sealed Air Corp.*                                    28,302,552
- --------------------------------------------------------------------------------
Cruise Lines - 1.3%
      500,000    Royal Caribbean Cruises, Ltd.                        34,187,500
- --------------------------------------------------------------------------------
Diversified Financial Services - 1.3%
      345,000    Associates First Capital Corp. - Class A             25,788,750
      358,125    Heller Financial, Inc.*                               9,669,375
- --------------------------------------------------------------------------------
                                                                      35,458,125
- --------------------------------------------------------------------------------
Diversified Operations - 8.8%
    2,525,000    CBS Corp.*                                           89,953,125
      860,000    General Electric Co.                                 73,207,500
      500,000    Textron, Inc.                                        39,125,000
      600,000    Tyco International, Ltd.                             32,700,000
- --------------------------------------------------------------------------------
                                                                     234,985,625
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   16
<PAGE>

            JANUS GROWTH AND INCOME FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 3.6%
      500,000    Applied Materials, Inc.*                        $    18,062,500
      200,000    Intel Corp.                                          16,162,500
      600,000    Maxim Integrated Products, Inc.*                     24,225,000
      600,000    Texas Instruments, Inc.                              38,437,500
- --------------------------------------------------------------------------------
                                                                      96,887,500
- --------------------------------------------------------------------------------
Finance - Consumer Loans - 1.7%
       40,000    Beneficial Corp.                                      5,215,000
      300,000    Household International, Inc.                        39,431,250
- --------------------------------------------------------------------------------
                                                                      44,646,250
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 1.8%
      300,000    Charles Schwab Corp.                                 10,500,000
      130,000    Merrill Lynch & Co., Inc.                            11,407,500
      320,000    Morgan Stanley, Dean Witter, Discover and Co.        25,240,000
- --------------------------------------------------------------------------------
                                                                      47,147,500
- --------------------------------------------------------------------------------
Finance - Mortgage Loan Banker - 1.0%
      460,210    Fannie Mae                                           27,555,074
- --------------------------------------------------------------------------------
Finance - Other Services - 1.5%
      797,870    Newcourt Credit Group, Inc.                          39,195,364
- --------------------------------------------------------------------------------
Food - Diversified - 0.4%
      250,075    Nabisco Holdings Corp. - Class A                     11,956,711
- --------------------------------------------------------------------------------
Medical - Drugs - 10.7%
      125,000    American Home Products Corp.                         11,640,625
    1,055,000    Astra A.B. - Class A**                               21,675,799
      350,000    Bristol-Myers Squibb Co.                             37,056,250
      200,000    Eli Lilly and Co.                                    13,912,500
      860,000    Pfizer, Inc.                                         97,878,750
    1,136,837    SmithKline Beecham PLC**                             13,440,687
      480,000    Warner-Lambert Co.                                   90,810,000
- --------------------------------------------------------------------------------
                                                                     286,414,611
- --------------------------------------------------------------------------------
Money Center Banks - 4.2%
       51,102    Banca Commerciale Italiana**                            258,439
      875,795    BankAmerica Corp.                                    74,442,575
      250,000    Citicorp                                             37,625,000
- --------------------------------------------------------------------------------
                                                                     112,326,014
- --------------------------------------------------------------------------------
Multi-Line Insurance - 0.8%
      423,951    Assicurazioni Generali**                             12,693,526
       43,355    ERGO Versicherungs Gruppe A.G.**                      8,214,391
- --------------------------------------------------------------------------------
                                                                      20,907,917
- --------------------------------------------------------------------------------
Multimedia - 4.3%
    1,175,000    Time Warner, Inc.                                    92,237,500
      175,000    Walt Disney Co. (The)                                21,754,687
- --------------------------------------------------------------------------------
                                                                     113,992,187
- --------------------------------------------------------------------------------
Networking Products - 2.7%
      985,000    Cisco Systems, Inc.*                                 72,151,250
- --------------------------------------------------------------------------------
Pharmacy Services - 0.7%
      524,992    Omnicare, Inc.                                       17,980,976
- --------------------------------------------------------------------------------
Publishing - Periodicals - 0.4%
      584,725    Ziff-Davis, Inc.*                                    10,525,050
- --------------------------------------------------------------------------------
Radio - 1.9%
      660,795    Chancellor Media Corp.*                              31,346,463
      448,840    Heftel Broadcasting Corp. - Class A*                 19,692,855
- --------------------------------------------------------------------------------
                                                                      51,039,318
- --------------------------------------------------------------------------------
Retail - Discount - 0.9%
      416,100    Costco Companies, Inc.*                              23,249,587
- --------------------------------------------------------------------------------
Retail - Regional Department Stores - 1.0%
      600,000    Fred Meyer, Inc.*                                    26,925,000
- --------------------------------------------------------------------------------
Super-Regional Banks - 3.6%
      150,000    Fleet Financial Group, Inc.                     $    12,956,250
      100,000    Mellon Bank Corp.                                     7,200,000
      480,000    U.S. Bancorp                                         60,960,000
       40,000    Wells Fargo & Co.                                    14,740,000
- --------------------------------------------------------------------------------
                                                                      95,856,250
- --------------------------------------------------------------------------------
Telecommunication Equipment - 0.6%
      230,000    Lucent Technologies, Inc.                            17,508,750
- --------------------------------------------------------------------------------
Telecommunication Services - 1.3%
      650,000    Teleport Communications Group, Inc. - Class A*       35,018,750
- --------------------------------------------------------------------------------
Telephone - Long Distance - 1.8%
    1,100,000    WorldCom, Inc.*                                      47,059,375
- --------------------------------------------------------------------------------
Toys - 0.3%
      200,000    Mattel, Inc.                                          7,662,500
- --------------------------------------------------------------------------------
Total Common Stock (cost $1,831,666,292)                           2,458,655,395
- --------------------------------------------------------------------------------
Corporate Bonds - 0.7%
- --------------------------------------------------------------------------------
Retail - Regional Department Stores - 0.4%
  $10,000,000    Fred Meyer, Inc., 7.45%
                   senior notes, due 3/1/08                            9,975,000
- --------------------------------------------------------------------------------
Telecommunication Services - 0.3%
   10,000,000    Level 3 Communications, Inc., 9.125% senior
                   notes, due 5/1/08                                   9,900,000
- --------------------------------------------------------------------------------
Total Corporate Bonds (cost $19,943,517)                              19,875,000
- --------------------------------------------------------------------------------
Preferred Stock - 3.2%
- --------------------------------------------------------------------------------
Automotive - Cars and Light Trucks - 1.8%
       19,063    Porsche A.G.**                                       47,697,416
- --------------------------------------------------------------------------------
Broadcast Services and Programming - 0.6%
       91,560    TCI Pacific Communications, 5.00%                    16,709,700
- --------------------------------------------------------------------------------
Electric - Integrated - 0.4%
      175,000    Houston Industries, Inc., 7.00%                      12,140,625
- --------------------------------------------------------------------------------
Radio - 0.4%
      103,082    Chancellor Media Corp., $3.00                        10,076,266
- --------------------------------------------------------------------------------
Total Preferred Stock (cost $66,568,703)                              86,624,007
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 2.6%
                 Prudential Funding Corp.
$  68,600,000      5.45%, 5/1/98 (amortized cost $68,600,000)         68,600,000
- --------------------------------------------------------------------------------
U.S. Government Agencies - 2.8%
                 Fannie Mae:
   25,000,000      5.39%, 5/6/98                                      24,981,285
   50,000,000      5.75%, 7/22/98                                     49,386,000
- --------------------------------------------------------------------------------
Total U.S. Government Agencies (cost $74,370,840)                     74,367,285
- --------------------------------------------------------------------------------
Total Investments (total cost $2,061,149,352) - 101.3%             2,708,121,687
- --------------------------------------------------------------------------------
Liabilities, net of Cash, Receivables and Other Assets - (1.3%)     (35,700,274)
- --------------------------------------------------------------------------------
Net Assets - 100%                                                 $2,672,421,413
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   17
<PAGE>

            JANUS GROWTH AND INCOME FUND April 30, 1998 (unaudited)

                       Summary of Investments by Country
                                 April 30, 1998
Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
France                                 0.6%                       $   15,067,891
Germany                                2.1%                           55,911,809
Italy                                  1.0%                           28,014,464
Sweden                                 0.8%                           21,675,799
United Kingdom                         1.2%                           33,066,311
United States++                       94.3%                        2,554,385,413
- --------------------------------------------------------------------------------
Total                                100.0%                       $2,708,121,687
================================================================================
++Includes Short-Term Securities (89.0% excluding Short-Term Securities)

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                   Currency         Currency        Unrealized
Settlement Date                   Units Sold   Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
British Pound 10/7/98              7,600,000    $  12,615,240          ($12,390)
German Deutschemark 7/2/98        57,300,000       32,025,486          (665,226)
German Deutschemark 7/23/98       36,700,000       20,536,064          (125,501)
French Franc 7/31/98              81,000,000       13,524,118           (12,859)
Italian Lira 7/17/98          34,800,000,000       19,678,071          (246,114)
Italian Lira 11/12/98         11,600,000,000        6,588,655           (19,022)
Swedish Krona 8/7/98             141,000,000       18,273,244          (487,324)
- --------------------------------------------------------------------------------
Total                                           $ 123,240,878       ($1,568,436)
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   18
<PAGE>

            JANUS MERCURY FUND Portfolio Manager, Warren B. Lammert

     Janus Mercury Fund finished the six-month period ended April 30, 1998, with
a gain of 22.29% versus the S&P 500 Index,  which climbed  22.50%.  Both returns
include reinvested dividends.
     While  I  was   disappointed   in  Janus  Mercury   Fund's   fourth-quarter
performance,  much stronger returns materialized early in '98. The Fund regained
lost ground from a selloff in the technology and oil services industries,  which
was caused by Asia's economic reversal late in the year. Also helping revitalize
performance  were  healthy  returns  posted  by  our  pharmaceutical  and  cable
holdings.
     Despite the underperformance of Janus Mercury Fund in '97, many of the same
investment ideas we had then are working now,  proving a disciplined  investment
approach can deliver results over time. Perhaps the only strategic change in the
Fund this period was my reduction in the number of its holdings  from 100 to 70.
This has enabled our investment team to pay even greater attention to individual
company fundamentals.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 97.3%                  97.4%
  Foreign                                10.0%                  23.6%
  European                               10.0%                  23.0%
Top 10 Equities (% of Assets)            40.9%                  34.2%
Number of Stocks                           70                    100
Cash & Cash Equivalents                   2.7%                   2.6%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Warner-Lambert Co.                        5.9%                   5.8%
Parametric Technology Co.                 4.9%                   4.7%
Time Warner, Inc.                         4.7%                   1.0%
Microsoft Corp.                           4.0%                   1.6%
Tele-Communications, Inc.                 3.9%                   0.9%
Comcast Corp. - Special Class A           3.8%                    --
America Online, Inc.                      3.7%                    --
Monsanto Co.                              3.7%                   4.2%
Analog Devices, Inc.                      3.4%                   1.7%
Nokia Oyj (ADR) - Class A                 2.9%                   1.4%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Computer Software                        12.9%                   9.0%
Cable Television                         10.2%                   0.9%
Medical - Drugs                           8.6%                   6.6%
Multimedia                                4.7%                   1.0%
Agricultural Biotechnology                4.6%                    --
- --------------------------------------------------------------------------------
Healthy Economies Support Strong Markets
     Domestic equity markets thrived as a combined result of low interest rates,
virtually nonexistent  inflation,  and a reassessment of the Asian downturn. The
events in Asia actually  strengthened  the U.S.  economy by holding down prices,
which in turn has improved the interest rate environment.  European markets also
gained  significantly as the movement toward European  Monetary Union appears to
be bringing lower interest rates to many historically fragile economies.
     Despite a resurgence in the technology  sector,  which is the largest broad
sector holding in the Fund, it was critical to hold the right technology  stocks
this period.  Earnings reports helped investors  differentiate between companies
with weak product demand and possible  overexposure to Asia and those with solid
long-term growth  potential and strong business  dividends such as Microsoft and
Dell Computer.
     Pharmaceuticals,  which make up almost 10% of the Fund, attracted increased
attention  as investors  sought clear  earnings  visibility  to hedge  against a
possible global economic slowdown. Several of our holdings in the pharmaceutical
and life  sciences  industries  that posted  particularly  strong  returns  were
Warner-Lambert,   Pfizer,  and  Monsanto.   All  demonstrated   strong  business
fundamentals, including the development of several new blockbuster products.
     Lipitor,  developed by Warner-Lambert  and co-marketed with Pfizer,  jumped
from  a   January   '97   launch   to   capture   the   leading   share  of  the
cholesterol-lowering  market and a $1.5  billion  annual sales level by April of
'98.  Pfizer's Viagra saw a record launch in April of '98 as the first effective
and convenient therapy for male erectile  dysfunction.  And progressing toward a
July  '98 Food  and  Drug  Administration  filing  is  Celebra,  a  nonsteroidal
anti-inflammatory  drug developed by Monsanto and also  co-marketed with Pfizer.
Celebra promises to match the efficacy of other widely prescribed  therapies for
pain and arthritis,  without the serious gastro-intestinal side effects normally
associated with those therapies.
     During the period,  I also  increased  our  positions in a variety of cable
stocks, including  Tele-Communications,  Inc. (TCI), Time Warner, and Comcast. I
see an  exciting  future  for  this  group  as a  major  upgrade  of  the  cable
infrastructure  nears completion,  helping to provide increased  capacity,  and,
more important, digital service capability.
     With the  completion of this upgrade,  capital  spending needs will decline
significantly  for the cable  industry.  At the same time,  these companies will
enjoy major new revenue opportunities from expanded video, television, and movie
offerings,  and  telephone  and data  services.  As a result,  early in the next
century we should see a huge  generation of free cash flow.  This will require a
new  approach  to  valuation  for these  companies,  which  should be  extremely
beneficial to share prices.
     As I mentioned earlier,  a fourth-quarter  selloff in oil services hurt our
holdings in this  sector.  The turn of events that led to  declining  oil prices
included reduced demand from Asia,  increased supply from Saudi Arabia,  and the
warmest winter on record.
     We  entered  into this  position  on the thesis  that a recent  boom in oil
services demand was technology-driven,  not commodity-driven. I was particularly
optimistic  about  long-term  prospects  for  Schlumberger  Ltd., a company that
improved oil exploration and extraction  through new  technology.  However,  the
collapse in oil prices forced us to trim our exposure to this industry.

Looking Ahead
     The financial markets continue to thrive in the current  near-perfect blend
of low yields,  benign  inflation,  and robust  economic  growth.  However,  the
markets  have  discounted  this  good  news,  and U.S.  stocks  are  trading  at
historically high multiples. Unfortunately, continued good news, especially with
respect to  inflation,  will be required  for the  markets to  maintain  today's
euphoric  overtones.  On the  positive  side,  I remain  enthusiastic  about our
current  holdings.  I believe our companies are marked by their dynamic earnings
and growth potential, strong market positions, and powerful franchises.
     We appreciate your continued investment in Janus Mercury Fund.

- --------------------------------------------------------------------------------
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   19
<PAGE>

            JANUS MERCURY FUND Portfolio Manager, Warren B. Lammert

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus Mercury Fund and the S&P 500 Index.  Janus Mercury Fund is  represented
by a solid blue line.  The S&P 500 Index is represented by a single dashed black
line. The "y" axis reflects the value of the  investment.  The "x" axis reflects
the computation periods from inception, May 3, 1993, through April 30, 1998. The
upper right quadrant reflects the ending value of the hypothetical investment in
Janus Mercury Fund ($29,988) as compared to the S&P 500 Index  ($28,265).  There
is a legend in the  upper  left  quadrant  of the graph  which  indicates  Janus
Mercury Fund's  one-year and since  inception (May 3, 1993) average annual total
returns as 44.07% and 24.56%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                 JANUS MERCURY FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 97.3%
- --------------------------------------------------------------------------------
Advertising Sales - 1.4%
      456,641    Lamar Advertising Co. - Class A*                $    15,754,115
      492,563    Outdoor Systems, Inc.*                               15,638,875
- --------------------------------------------------------------------------------
                                                                      31,392,990
- --------------------------------------------------------------------------------
Aerospace and Defense - 0.5%
      235,040    Orbital Sciences Corp.*                              10,459,280
- --------------------------------------------------------------------------------
Agricultural Biotechnology - 4.6%
      292,860    DEKALB Genetics Corp. - Class B                      19,969,391
    1,551,155    Monsanto Co.                                         82,017,321
- --------------------------------------------------------------------------------
                                                                     101,986,712
- --------------------------------------------------------------------------------
Agricultural Operations - 0.9%
      438,265    Delta and Pine Land Co.                              20,187,582
- --------------------------------------------------------------------------------
Applications Software - 2.8%
      447,930    Intuit, Inc.*                                        23,824,277
      519,585    PeopleSoft, Inc.*                                    24,160,703
      285,740    Sapient Corp.*                                       14,108,412
- --------------------------------------------------------------------------------
                                                                      62,093,392
- --------------------------------------------------------------------------------
Automotive - Truck Parts and Equipment - 1.3%
      439,590    Federal-Mogul Corp.                                  28,435,978
- --------------------------------------------------------------------------------
Cable Television - 10.2%
    2,351,700    Comcast Corp. - Special Class A                      84,220,256
       83,765    Cox Communications, Inc. - Class A*                   3,738,013
    2,630,362    Tele-Communications, Inc. - Class A*                 84,829,175
    1,342,810    US WEST Media Group*                                 50,691,078
- --------------------------------------------------------------------------------
                                                                     223,478,522
- --------------------------------------------------------------------------------
Cellular Telecommunications - 1.8%
    2,851,216    Telecom Italia S.p.A.**                              21,473,220
      900,150    Western Wireless Corp. - Class A*                    17,552,925
- --------------------------------------------------------------------------------
                                                                      39,026,145
- --------------------------------------------------------------------------------
Chemicals - Diversified - 0.7%
      512,160    Solutia, Inc.                                   $    14,532,540
- --------------------------------------------------------------------------------
Chemicals - Specialty - 0.3%
      163,920    Cabot Corp.                                           5,890,875
- --------------------------------------------------------------------------------
Circuits - 3.4%
    1,890,337    Analog Devices, Inc.*                                73,604,997
- --------------------------------------------------------------------------------
Commercial Banks - 0.7%
      236,020    Star Banc Corp.                                      14,913,514
- --------------------------------------------------------------------------------
Computer Software - 12.9%
       54,945    Aspect Development, Inc.*                             3,478,705
      862,355    Aspen Technology, Inc.*                              42,147,601
      806,045    Cadence Design Systems, Inc.*                        29,269,509
      985,250    Microsoft Corp.*                                     88,795,656
    3,366,730    Parametric Technology Co.*                          107,630,150
      371,842    Wind River Systems*                                  12,875,029
- --------------------------------------------------------------------------------
                                                                     284,196,650
- --------------------------------------------------------------------------------
Computers - Memory Devices - 0.4%
      172,315    VERITAS Software Corp.*                               9,434,246
- --------------------------------------------------------------------------------
Computers - Micro - 1.1%
      309,535    Dell Computer Corp.*                                 24,994,951
- --------------------------------------------------------------------------------
Containers - Paper and Plastic - 1.0%
      332,230    Sealed Air Corp.*                                    20,888,961
- --------------------------------------------------------------------------------
Diversified Financial Services - 1.5%
      435,220    Associates First Capital Corp. - Class A             32,532,695
- --------------------------------------------------------------------------------
Diversified Operations - 4.2%
    1,008,360    CBS Corp.*                                           35,922,825
      312,056    Metra Oy - Class B**                                  7,847,099
    1,022,513    Siebe PLC**                                          23,251,128
      456,305    Tyco International, Ltd.                             24,868,623
- --------------------------------------------------------------------------------
                                                                      91,889,675
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   20
<PAGE>

                 JANUS MERCURY FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Drug Delivery Systems - 1.4%
      637,450    ALZA Corp.*                                     $    30,557,759
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 2.4%
      352,195    Applied Materials, Inc.*                             12,723,044
      242,915    ASM Lithography Holding N.V. (ADR)*                  22,257,087
      434,465    Maxim Integrated Products, Inc.*                     17,541,524
- --------------------------------------------------------------------------------
                                                                      52,521,655
- --------------------------------------------------------------------------------
Electronic Safety Devices - 2.2%
      645,200    Pittway Corp. - Class A                              48,228,700
- --------------------------------------------------------------------------------
Finance - Consumer Loans - 0.9%
      152,805    Household International, Inc.                        20,084,307
- --------------------------------------------------------------------------------
Food - Diversified - 2.3%
      277,096    Raisio Group PLC**                                   50,861,165
- --------------------------------------------------------------------------------
Internet Content - 0.7%
      425,500    At Home Corp. - Class A*                             14,174,469
- --------------------------------------------------------------------------------
Internet Software - 3.7%
    1,029,044    America Online, Inc.*                                82,323,520
- --------------------------------------------------------------------------------
Life and Health Insurance - 2.2%
      901,351    UNUM Corp.                                           48,447,616
- --------------------------------------------------------------------------------
Medical - Drugs - 8.6%
      317,920    Eli Lilly and Co.                                    22,115,310
      325,345    Pfizer, Inc.                                         37,028,328
      686,230    Warner-Lambert Co.                                  129,826,138
- --------------------------------------------------------------------------------
                                                                     188,969,776
- --------------------------------------------------------------------------------
Medical Information Systems - 1.3%
      462,525    HBO & Co.                                            27,664,777
- --------------------------------------------------------------------------------
Medical Instruments - 1.4%
      341,445    Sofamor Danek Group, Inc.*                           29,961,799
- --------------------------------------------------------------------------------
Money Center Banks - 2.1%
      770,790    Banca Commerciale Italiana**                          3,897,993
      350,340    Bank of New York Co., Inc.                           20,691,956
      257,175    BankAmerica Corp.                                    21,859,875
- --------------------------------------------------------------------------------
                                                                      46,449,824
- --------------------------------------------------------------------------------
Multimedia - 4.7%
    1,317,405    Time Warner, Inc.                                   103,416,293
- --------------------------------------------------------------------------------
Networking Products - 2.7%
      806,227    Cisco Systems, Inc.*                                 59,056,128
- --------------------------------------------------------------------------------
Oil - Field Services - 1.2%
   21,304,941    Ocean Rig ASA*,#                                     20,710,551
      223,613    Smedvig ASA - Class B                                 4,497,401
- --------------------------------------------------------------------------------
                                                                      25,207,952
- --------------------------------------------------------------------------------
Pharmacy Services - 1.3%
      820,481    Omnicare, Inc.                                       28,101,474
- --------------------------------------------------------------------------------
Radio - 1.1%
      529,935    Chancellor Media Corp.*                              25,138,792
- --------------------------------------------------------------------------------
Retail - Building Products - 0.7%
      267,685    Fastenal Co.                                         14,973,630
- --------------------------------------------------------------------------------
Retail - Discount - 1.0%
      403,420    Costco Companies, Inc.*                              22,541,092
- --------------------------------------------------------------------------------
Retail - Internet - 1.0%
      230,790    Amazon.com, Inc.*                                    21,174,982
- --------------------------------------------------------------------------------
Savings/Loan/Thrifts - 0.4%
      102,515    Ambanc Holding Co., Inc.                              1,819,641
      155,860    First Defiance Financial Corp.                        2,337,900
       62,765    North Central Bancshares, Inc.                        1,514,206
       86,825    Provident Financial Holdings, Inc.*                   2,040,387
       76,875    TF Financial Corp.                                    2,114,062
- --------------------------------------------------------------------------------
                                                                       9,826,196
- --------------------------------------------------------------------------------
Super-Regional Banks - 1.0%
      178,550    U.S. Bancorp                                    $    22,675,850
- --------------------------------------------------------------------------------
Telecommunication Equipment - 2.9%
      967,010    Nokia Oyj (ADR) - Class A                            64,668,794
- --------------------------------------------------------------------------------
Television - 0%
       58,675    United International Holdings, Inc. - Class A*          997,475
- --------------------------------------------------------------------------------
Vitamins and Nutrition Products - 0.4%
      230,630    Twinlab Corp.*                                        9,052,227
- --------------------------------------------------------------------------------
Total Common Stock (cost $1,593,177,335)                           2,137,015,957
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 1.8%
                 Prudential Funding Corp.
$  40,500,000      5.45%, 5/1/98 (amortized cost $40,500,000)         40,500,000
- --------------------------------------------------------------------------------
Total Investments (total cost $1,633,677,335) - 99.1%              2,177,515,957
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 0.9%         19,772,839
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $ 2,197,288,796
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Finland                                5.7%                       $  123,377,058
Italy                                  1.2%                           25,371,212
Netherlands                            1.0%                           22,257,087
Norway                                 1.1%                           25,207,952
United Kingdom                         1.1%                           23,251,127
United States++                       89.9%                        1,958,051,521
- --------------------------------------------------------------------------------
Total                                100.0%                       $2,177,515,957
================================================================================
++Includes Short-Term Securities (88.1% excluding Short-Term Securities)

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                    Currency        Currency        Unrealized
Settlement Date                    Units Sold  Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
British Pound 5/11/98               3,048,000   $   5,093,818         ($153,418)
British Pound 8/7/98                  400,000         665,680            (3,040)
British Pound 10/7/98               2,052,000       3,406,115            (3,899)
Dutch Guilder 7/2/98               11,800,000       5,858,987          (108,500)
Dutch Guilder 7/17/98               4,200,000       2,087,164           (24,296)
Dutch Guilder 7/31/98               6,000,000       2,984,036           (20,487)
Finnish Markka 5/28/98              9,751,000       1,792,397            72,039
Finnish Markka 7/10/98                300,000          55,278              (633)
Finnish Markka 7/17/98             62,892,000      11,592,996          (220,120)
Finnish Markka 7/23/98              2,057,000         379,296              (858)
Finnish Markka 7/31/98            242,000,000      44,642,857          (499,214)
Finnish Markka 8/7/98              20,000,000       3,690,922           (87,773)
Italian Lira 8/7/98            19,150,000,000      10,835,462          (216,531)
Italian Lira 11/12/98          18,850,000,000      10,706,564           (30,911)
- --------------------------------------------------------------------------------
Total                                           $ 103,791,572       ($1,297,641)
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   21
<PAGE>

               JANUS OLYMPUS FUND Portfolio Manager, Claire Young

     Janus  Olympus Fund gained 19.35% during the first half of our fiscal year,
November 1, 1997,  to April 30, 1998.  The S&P 500 Index  gained  22.50% for the
same period. Both returns include reinvested dividends.
     For the 12 months  ended  April 30,  1998,  the Fund ranked 45th out of 230
capital  appreciation  funds as tracked by Lipper Analytical  Services,  Inc., a
leading mutual fund rating company.(1)
     During the half, the market showed  remarkable  resilience from the October
downdraft  as  investors  used the  opportunity  to increase  their  exposure to
equities.  Amid the Asian turmoil,  investors  focused their buying  activity on
companies with predictable  earnings  streams.  Companies with exposure to Asian
economies or with less certain earnings streams did not experience as vigorous a
rebound.
     The majority of the Fund benefited  tremendously  from the market's "flight
to quality";  however, in November, our oil services stocks underperformed.  Oil
prices  saw a quick  downturn  as  Asian  demand  slowed,  while  OPEC  supplies
continued  to  grow.  As I cut  exposure  to  this  area,  performance  improved
significantly.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 96.1%                  93.8%
  Foreign                                 9.5%                  14.7%
  European                                9.5%                  12.9%
Top 10 Equities (% of Assets)            35.9%                  40.7%
Number of Stocks                           60                     57
Cash & Cash Equivalents                   3.9%                   6.2%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Warner-Lambert Co.                        6.1%                   5.1%
Microsoft Corp.                           4.7%                   5.1%
Pfizer, Inc.                              4.5%                   5.6%
Cisco Systems, Inc.                       3.9%                   0.4%
Cadence Design Systems, Inc.              3.5%                   1.6%
Dell Computer Corp.                       3.1%                   4.7%
America Online, Inc.                      3.0%                   1.4%
Time Warner, Inc.                         2.5%                   1.0%
CBS Corp.                                 2.3%                    --
Monsanto Co.                              2.3%                   2.6%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Medical - Drugs                          13.6%                  20.6%
Computer Software                        10.9%                   8.7%
Money Center Banks                        4.1%                   6.3%
Networking Products                       3.9%                   0.4%
Finance - Investment
  Bankers/Brokers                         3.7%                   2.8%
- --------------------------------------------------------------------------------
Technology and Drug Stocks Post Strong Results
     Technology  continued to be a main driver of domestic economic growth, from
improving  worker  productivity  to  harnessing  data  to  run  businesses  more
efficiently.  The robust demand of the  sub-$1,000  personal  computer-dominated
technology  issues.  Driven by consumers'  desire to access the  Internet,  unit
volume growth of these low-end personal computers was surprisingly  strong. Many
of our technology  holdings  performed well despite the drop in computer prices.
Indeed,  some of our newer holdings are positioned to benefit from the exploding
interest in Internet-related offerings. Microsoft operating systems and software
packages grew with the increased unit growth of PCs, with no pricing  pressures.
Dell  Computer's  superior  direct  marketing  model enabled the company to take
advantage  of  pricing  turmoil  in the  market.  Dell  maintained  very  little
inventory,  which  allowed  the  company to upgrade  its  product  offerings  at
compelling prices,  while its competitors  suffered through inventory destocking
of higher-priced, older computer components.
     I added to positions in Cisco Systems and America  Online  (AOL).  Cisco is
the  market  leader  in  computer   networking   technology   and  provides  key
infrastructure  equipment  to  support  the rapid  growth  of  Internet/intranet
traffic. AOL is the leading Internet and online service provider. It is enjoying
tremendous subscriber growth and capitalizing on the increasing  advertising and
marketing dollars being spent in this new medium.
     In the  pharmaceutical  area,  the  aggressive  spending  in  research  and
development  and the  increasing  use of technology  to better  target  research
continue to generate drugs with better efficacy and lower side effects. Our drug
companies'  strong  product  sales  demonstrate  the benefits of their  previous
investment in research.  Warner-Lambert's  Lipitor overtook Merck's Zocor as the
leading  cholesterol-lowering  drug and continues to surpass estimates on sales.
Pfizer's Viagra, a male impotence drug, was finally approved for marketing. Upon
its release, it became the fastest-growing prescription drug ever. Pfizer signed
a licensing agreement with Monsanto for Celebra, a nonsteroid  anti-inflammatory
with  fewer   gastrointestinal   side  effects  than  other  painkillers.   This
revolutionary compound will be marketed next year and should continue the recent
string of blockbuster drug introductions.

Looking for Attractive Characteristics
     Some of our lower-profile  stocks also produced  outstanding returns in the
first half. While seemingly  disparate in nature,  each has the  characteristics
that  I'm  looking  for in  investments:  growth  industries,  dominant  product
offerings, and excellent management teams. Royal Caribbean Cruises is one of the
leading  companies in the cruise industry - an industry  experiencing  increased
acceptance as a vacation alternative with high barriers to entry. The company is
benefiting  from strong pricing and its focus on improving  ship  profitability.
Select Appointments is a global temporary  employment agency with an emphasis on
information technology employees.  It's well-positioned to capture the growth of
technology  spending in Europe,  particularly  to address Year 2000 and European
Monetary Unit issues.
     I sold our position in Ciena, a telecommunications equipment provider, when
purchases from one of its largest customers were delayed.  As mentioned earlier,
I also sold our positions in the oil services equipment and deep-water  drilling
segments  because of concerns of  languishing  oil prices.  Finally,  I sold JBA
Holdings,   an  U.K.  software  firm,  when  it  failed  to  meet  our  earnings
expectations.

Current Outlook
     As the first half  ended,  companies  were  reporting  solid  first-quarter
earnings.  Despite  some pockets of  weakness,  the U.S. and European  economies
demonstrated  solid growth that more than offset Asia's slowdown for many of our
holdings.  I believe we will  continue  to see  volatility  in the market as the
impact of Asia's turmoil continues to unfold.  However,  I feel confident in our
companies' growth prospects and ability to generate strong returns.
     Thank you for your investment in Janus Olympus Fund.

- --------------------------------------------------------------------------------
(1)  A capital  appreciation  fund is  defined  by  Lipper as one that  "aims at
     maximum capital appreciation, frequently by means of 100% or more portfolio
     turnover,  leveraging,   purchasing  unregistered  securities,   purchasing
     options,  etc. The fund may take large cash positions." Lipper's ranking is
     based on total  return,  including  reinvestment  of dividends  and capital
     gains for the stated period.
Past performance does not guarantee future results.

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   22
<PAGE>

               JANUS OLYMPUS FUND Portfolio Manager, Claire Young

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus Olympus Fund and the S&P 500 Index.  Janus Olympus Fund is  represented
by a solid blue line.  The S&P 500 Index is represented by a single dashed black
line. The "y" axis reflects the value of the  investment.  The "x" axis reflects
the  computation  periods from inception,  December 29, 1995,  through April 30,
1998.  The upper right  quadrant  reflects the ending value of the  hypothetical
investment  in Janus  Olympus  Fund  ($18,471)  as compared to the S&P 500 Index
($18,871).  There is a legend  in the upper  left  quadrant  of the graph  which
indicates Janus Olympus Fund's one-year and since inception  (December 29, 1995)
average annual total returns as 46.87% and 30.08%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                 JANUS OLYMPUS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 94.5%
- --------------------------------------------------------------------------------
Agricultural Biotechnology - 2.3%
      345,525    Monsanto Co.                                    $    18,269,634
- --------------------------------------------------------------------------------
Applications Software - 3.6%
      336,570    Intuit, Inc.*                                        17,901,317
      230,000    PeopleSoft, Inc.*                                    10,695,000
- --------------------------------------------------------------------------------
                                                                      28,596,317
- --------------------------------------------------------------------------------
Cable Television - 3.6%
      450,000    Comcast Corp. - Special Class A                      16,115,625
      400,000    Tele-Communications, Inc. - Class A*                 12,900,000
- --------------------------------------------------------------------------------
                                                                      29,015,625
- --------------------------------------------------------------------------------
Cellular Telecommunications - 1.1%
      200,000    Cellular Communications International, Inc.*          8,800,000
- --------------------------------------------------------------------------------
Circuits - 1.5%
      150,050    Linear Technology Corp.                              12,079,025
- --------------------------------------------------------------------------------
Commercial Banks - 0.9%
       85,000    Credit Commercial de France**                         6,779,928
- --------------------------------------------------------------------------------
Computer Software - 10.9%
      125,000    BMC Software, Inc.*                                  11,695,313
      768,410    Cadence Design Systems, Inc.*                        27,902,888
      415,000    Microsoft Corp.*                                     37,401,875
       93,005    Mobius Management Systems, Inc.*                      1,720,593
      250,000    Wind River Systems*                                   8,656,250
- --------------------------------------------------------------------------------
                                                                      87,376,919
- --------------------------------------------------------------------------------
Computers - Integrated Systems - 1.2%
      130,000    Aspec Technology, Inc.*                               1,803,750
      150,000    Saville Systems Ireland PLC (ADR)*                    7,481,250
- --------------------------------------------------------------------------------
                                                                       9,285,000
- --------------------------------------------------------------------------------
Computers - Memory Devices - 3.3%
      225,000    EMC Corp.*                                      $    10,378,125
      298,175    VERITAS Software Corp.*                              16,325,081
- --------------------------------------------------------------------------------
                                                                      26,703,206
- --------------------------------------------------------------------------------
Computers - Micro - 3.1%
      310,000    Dell Computer Corp.*                                 25,032,500
- --------------------------------------------------------------------------------
Cruise Lines - 2.2%
      251,860    Royal Caribbean Cruises, Ltd.                        17,220,927
- --------------------------------------------------------------------------------
Data Processing and Management - 2.7%
      261,840    CSG Systems International, Inc.*                     11,913,720
      149,050    i2 Technologies, Inc.*                                9,949,087
- --------------------------------------------------------------------------------
                                                                      21,862,807
- --------------------------------------------------------------------------------
Diversified Operations - 2.3%
      515,000    CBS Corp.*                                           18,346,875
- --------------------------------------------------------------------------------
Drug Delivery Systems - 1.5%
      250,000    ALZA Corp.*                                          11,984,375
- --------------------------------------------------------------------------------
Educational Software - 1.6%
      244,150    CBT Group PLC (ADR)*                                 12,421,131
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 1.7%
      208,845    Applied Materials, Inc.*                              7,544,526
      150,000    Maxim Integrated Products, Inc.*                      6,056,250
- --------------------------------------------------------------------------------
                                                                      13,600,776
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 3.7%
      306,010    Charles Schwab Corp.                                 10,710,350
      125,000    Merrill Lynch & Co., Inc.                            10,968,750
      100,000    Morgan Stanley, Dean Witter, Discover and Co.         7,887,500
- --------------------------------------------------------------------------------
                                                                      29,566,600
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   23
<PAGE>

                 JANUS OLYMPUS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Finance - Other Services - 0.3%
       46,060    Newcourt Credit Group, Inc.                     $     2,262,697
- --------------------------------------------------------------------------------
Food - Diversified - 0.7%
      125,000    Nabisco Holdings Corp. - Class A                      5,976,562
- --------------------------------------------------------------------------------
Human Resources - 2.0%
      580,000    Select Appointments Holdings PLC (ADR)               15,732,500
- --------------------------------------------------------------------------------
Internet Software - 3.0%
      300,000    America Online, Inc.*                                24,000,000
- --------------------------------------------------------------------------------
Medical - Drugs - 13.6%
      175,000    Eli Lilly and Co.                                    12,173,438
        1,696    Novartis A.G.**                                       2,804,166
      320,000    Pfizer, Inc.                                         36,420,000
      100,000    Schering-Plough Corp.                                 8,012,500
      260,000    Warner-Lambert Co.                                   49,188,750
- --------------------------------------------------------------------------------
                                                                     108,598,854
- --------------------------------------------------------------------------------
Medical - Wholesale Drug Distributors - 0.7%
       61,025    Cardinal Health, Inc.                                 5,873,656
- --------------------------------------------------------------------------------
Money Center Banks - 4.1%
      125,000    Bank of New York Co., Inc.                            7,382,813
      160,000    BankAmerica Corp.                                    13,600,000
      770,392    Lloyds TSB Group PLC**                               11,560,656
- --------------------------------------------------------------------------------
                                                                      32,543,469
- --------------------------------------------------------------------------------
Multimedia - 3.6%
      250,000    Time Warner, Inc.                                    19,625,000
       75,000    Walt Disney Co. (The)                                 9,323,437
- --------------------------------------------------------------------------------
                                                                      28,948,437
- --------------------------------------------------------------------------------
Networking Products - 3.9%
      425,000    Cisco Systems, Inc.*                                 31,131,250
- --------------------------------------------------------------------------------
Radio - 0.7%
      200,000    Westwood One, Inc.*                                   6,000,000
- --------------------------------------------------------------------------------
Retail - Building Products - 1.3%
      150,000    Home Depot, Inc.                                     10,443,750
- --------------------------------------------------------------------------------
Retail - Discount - 1.7%
      250,000    Costco Companies, Inc.*                              13,968,750
- --------------------------------------------------------------------------------
Retail - Regional Department Stores - 1.8%
      320,700    Fred Meyer, Inc.*                                    14,391,413
- --------------------------------------------------------------------------------
Retail - Restaurants - 1.2%
      200,000    Starbucks Corp.*                                      9,625,000
- --------------------------------------------------------------------------------
Schools - 1.1%
      240,000    DeVry, Inc.*                                          9,090,000
- --------------------------------------------------------------------------------
Schools - Day Care - 1.3%
      395,425    CorporateFamily Solutions, Inc.*,#                   10,528,191
- --------------------------------------------------------------------------------
Telecommunication Services - 3.4%
       83,006    COLT Telecom Group PLC*,**                            1,790,340
       55,700    COLT Telecom Group PLC (ADR)*,**                      4,797,163
      150,000    Level 3 Communications, Inc.*                         9,300,000
      298,100    Qwest Communications International, Inc.*            11,495,481
- --------------------------------------------------------------------------------
                                                                      27,382,984
- --------------------------------------------------------------------------------
Telephone - Local - 0.6%
       50,000    Bell Atlantic Corp.                                   4,678,125
- --------------------------------------------------------------------------------
Telephone - Long Distance - 2.3%
      200,000    MCI Communications Corp.                             10,062,500
      200,000    WorldCom, Inc.*                                       8,556,250
- --------------------------------------------------------------------------------
                                                                      18,618,750
- --------------------------------------------------------------------------------
Total Common Stock (cost $544,047,565)                               756,736,033
- --------------------------------------------------------------------------------
Preferred Stock - 1.6%
- --------------------------------------------------------------------------------
Automotive - Cars and Light Trucks - 1.6%
        5,000    Porsche A.G.** (cost $11,471,926)               $    12,510,470
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 0.7%
                 Prudential Funding Corp.
$   5,600,000      5.45%, 5/1/98 (amortized cost $5,600,000)           5,600,000
- --------------------------------------------------------------------------------
Total Investments (total cost $561,119,491) - 96.8%                  774,846,503
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 3.2%         26,025,172
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $   800,871,675
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                    % of Investment Securities               Market Value
- --------------------------------------------------------------------------------
France                                 0.9%                       $    6,779,928
Germany                                2.2%                           17,307,634
Ireland                                2.5%                           19,902,381
Switzerland                            0.4%                            2,804,165
United Kingdom                         3.8%                           29,083,496
United States++                       90.2%                          698,968,899
- --------------------------------------------------------------------------------
Total                                100.0%                       $  774,846,503
================================================================================
++Includes Short-Term Securities (89.5% excluding Short-Term Securities)

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                   Currency         Currency        Unrealized
Settlement Date                   Units Sold   Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
British Pound 8/14/98              3,140,000    $   5,224,018          ($95,142)
British Pound 10/7/98              4,760,000        7,901,124            (6,174)
French Franc 7/31/98              19,500,000        3,255,806            (3,096)
French Franc 10/19/98             17,000,000        2,850,484            (5,629)
German Deutschemark 7/2/98        20,300,000       11,345,853          (177,584)
Swiss Franc 10/21/98               3,800,000        2,582,048             2,635
- --------------------------------------------------------------------------------
Total                                           $  33,159,333         ($284,990)
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   24
<PAGE>

            JANUS OVERSEAS FUND Portfolio Manager, Helen Young Hayes

     Janus Overseas Fund once again  outperformed its benchmark this period. The
Fund gained  17.55% for the six months ended April 30, 1998,  compared  with the
MSCI EAFE Index,  which  gained  15.44%  during the same  period.  Both  returns
include net reinvested dividends.(1)
     I am also pleased to report that,  for the 12-month  period ended April 30,
1998, the Fund ranked 64th out of the 466 international funds tracked by Lipper
Analytical Services, Inc., a leading mutual fund rating company.(2)

Closing Janus Overseas Fund
     Our biggest  change during the half was the closing of Janus  Overseas Fund
to new investors.  As a rapid stream of assets  continued to flow into the Fund,
I, along with Janus' Chief  Investment  Officer Jim Craig,  decided to close the
Fund proactively in order to preserve its flexibility.
     In  conjunction  with this  decision  was the  well-deserved  promotion  of
Laurence  Chang to  co-manager  of Janus  Overseas  Fund  from his  position  as
assistant  portfolio manager.  Laurence,  who has worked closely with me for the
past five years, also serves as assistant  portfolio manager for Janus Worldwide
Fund.
     In terms of the stock markets,  many  international  markets moved steadily
higher this period,  reflecting  reduced investor concerns that the Asian crisis
would extend to other parts of the globe.  The downturn in the Far East has thus
far been viewed as a positive for the global economy by investors,  as prospects
for lower inflation and moderate economic growth drove several markets higher.

European Stocks Boost Performance
     The European stock markets posted  impressive gains this period,  fueled by
the pending  European  Monetary  Union (EMU) in 1999,  corporate  restructuring,
improving  domestic  economies,  and the convergence of European interest rates.
Our European holdings fared well as a result,  and because these stocks comprise
nearly 83.9% of the Fund, it posted strong returns.
     Companies  that focused on increasing  shareholder  value and  accelerating
corporate earnings growth helped drive the performance of our European holdings.
French auto manufacturer Renault was among our strong performers.
     Many European  technology stocks also climbed  significantly as a result of
an increase in computer  spending in  anticipation of the Year 2000 and European
Monetary  Union  conversions.  U.K.-based  companies  Logica and Misys and Dutch
computer services provider Getronics are among our technology  holdings that are
rapidly  gaining  momentum.  Unfortunately,  our  position  in JBA  Holdings,  a
U.K.-based  software  development  company,  did not fare so well. The stock was
down  about 50% as a result  of what I believe  were  accelerated  research  and
development costs coupled with a slowdown in new clients.

Growing Presence in Emerging Markets
     The economic and political  environment in Japan, Korea, and Southeast Asia
leave me wary  about  corporate  earnings  for the near  term.  I have  modestly
increased the Fund's weighting in Latin America.  My emphasis remains on strong,
high-quality franchise names such as Telebras in Brazil and Televisa in Mexico.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 98.1%                  89.1%
  Foreign                                97.1%                  88.1%
Top 10 Equities (% of Assets)            21.4%                  22.6%
Number of Stocks                          180                    211
Cash & Fixed Income Securities            1.9%                  10.9%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Rentokil Initial PLC                      3.2%                   2.2%
Siebe PLC                                 2.5%                   2.8%
Wolters Kluwer N.V                        2.1%                   0.9%
Nokia Oyj - Class A                       2.1%                   1.8%
Electrolux A.B. - Class B                 2.0%                   2.5%
Philips Electronics N.V.
  - N.Y. Shares                           2.0%                   2.6%
Mannesmann A.G                            1.9%                    --
Akzo Nobel N.V                            1.9%                   2.2%
Telecom Italia Mobile S.p.A.              1.9%                    --
UBS                                       1.8%                   0.3%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Money Center Banks                       11.3%                   6.1%
Diversified Operations                    9.3%                   9.8%
Medical - Drugs                           7.2%                   3.7%
Telephone - Integrated                    5.7%                   2.2%
Computer Services                         5.1%                   4.1%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Countries                     April 30, 1998        October 31, 1997
United Kingdom                           19.9%                  20.3%
Netherlands                              11.7%                  12.4%
Germany                                  11.5%                   7.5%
France                                    8.3%                  12.0%
Switzerland                               8.1%                   7.3%
- --------------------------------------------------------------------------------
Positive Global Market Outlook
     Benign inflation and strong corporate restructuring actions should continue
to create a positive future environment for the global markets.  In the last six
months alone, European companies have noticeably improved their earnings quality
and increased their productivity as changes in management  incentives and a more
disciplined investment approach began to be felt.
     While we continue to monitor macroeconomic trends closely, my primary focus
continues  to be to  identify  the  best  companies  anywhere  in  the  world  -
regardless of geography or market sentiment.
     On behalf of the entire international investment team, I thank you for your
investment in Janus Overseas Fund.

- --------------------------------------------------------------------------------
(1)  Net dividends  reinvested  are the  dividends  that remain to be reinvested
     after foreign tax  obligations  have been met. Such  obligations  vary from
     country to country.
(2)  Lipper Analytical Services,  Inc. defines an international fund as one that
     "invests its assets in securities whose primary trading markets are outside
     the United States." As of April 30, 1998,  Janus Overseas Fund ranked 1/277
     of  international  funds for the 3-year  period.  This  ranking is based on
     total  return,  including  reinvested  dividends  and capital gains for the
     stated period.
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   25
<PAGE>

            JANUS OVERSEAS FUND Portfolio Manager, Helen Young Hayes

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus Overseas Fund and the Morgan Stanley Capital  International EAFE Index.
Janus  Overseas Fund is  represented  by a solid blue line.  The Morgan  Stanley
Capital  International  EAFE Index is represented by a single dashed black line.
The "y" axis  reflects the value of the  investment.  The "x" axis  reflects the
computation  periods from  inception,  May 2, 1994,  through April 30, 1998. The
upper right quadrant reflects the ending value of the hypothetical investment in
Janus  Overseas  Fund  ($21,896)  as  compared  to the  Morgan  Stanley  Capital
International EAFE Index ($13,864). There is a legend in the upper left quadrant
of the graph which  indicates Janus Overseas Fund's one-year and since inception
(May 2, 1994) average annual total returns as 29.29% and 21.64%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                 JANUS OVERSEAS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 94.7%
- --------------------------------------------------------------------------------
Advertising Agencies - 0.3%
    1,673,060    WPP Group PLC**                                 $    10,657,928
- --------------------------------------------------------------------------------
Advertising Sales - 0.1%
    3,610,778    Aegis Group PLC**,+                                   5,554,243
- --------------------------------------------------------------------------------
Airlines - 0.9%
      517,191    Deutsche Lufthansa A.G.**                            12,306,544
        3,152    Sairgroup**                                           4,122,981
      406,950    SAS Danmark A/S                                       7,255,091
      357,605    SAS Norge ASA - Class B                               5,969,614
      521,464    SAS Sverige A.B.**                                    8,288,100
- --------------------------------------------------------------------------------
                                                                      37,942,330
- --------------------------------------------------------------------------------
Appliances - 2.0%
      912,610    Electrolux A.B. - Class B**                          84,906,953
- --------------------------------------------------------------------------------
Athletic Footwear - 0.4%
       92,150    Adidas - Salomon A.G.**                              15,277,053
- --------------------------------------------------------------------------------
Audio and Video Products - 1.4%
      742,400    Sony Corp.**                                         61,861,974
- --------------------------------------------------------------------------------
Automotive - Cars and Light Trucks - 2.5%
       17,803    Bayerische Motoren Werke (BMW) A.G.**                19,643,354
      429,000    Honda Motor Co., Ltd.**                              15,584,649
    1,092,480    Renault S.A.*,**                                     50,650,370
       25,643    Volkswagen A.G.**                                    20,420,122
- --------------------------------------------------------------------------------
                                                                     106,298,495
- --------------------------------------------------------------------------------
Beverages - Non-Alcoholic - 0.1%
      128,619    Embotelladora Andina S.A. (ADR) - Class B             2,604,535
- --------------------------------------------------------------------------------
Brewery - 0.7%
      851,935    Companhia Cervejaria Brahma (ADR)                    11,234,893
    2,665,700    Fomento Economico Mexicano, S.A. de C.V.             19,719,101
- --------------------------------------------------------------------------------
                                                                      30,953,994
- --------------------------------------------------------------------------------
Broadcast Services and Programming - 0.6%
      656,320    Grupo Televisa S.A. (GDR)*                      $    26,909,120
- --------------------------------------------------------------------------------
Building - Heavy Construction - 0.3%
      111,309    Compagnie Francaise d'Etudes et de
                   Construction Technip**                             14,131,510
- --------------------------------------------------------------------------------
Cellular Telecommunications - 3.6%
      387,593    Cellular Communications International, Inc.*         17,054,070
       95,300    Millicom International Cellular S.A.*                 3,728,612
       88,104    Telecel-Comunicacaoes Pessoais, S.A.*                15,805,551
   14,057,268    Telecom Italia Mobile S.p.A.                         80,506,299
    5,147,909    Telecom Italia S.p.A.                                38,770,189
- --------------------------------------------------------------------------------
                                                                     155,864,721
- --------------------------------------------------------------------------------
Chemicals - Diversified - 3.1%
      404,884    Akzo Nobel N.V.**                                    82,358,907
      242,863    BASF A.G.**                                          10,813,478
      205,152    Bayer A.G.**                                          9,122,963
      294,625    Hoechst A.G.**                                       11,885,171
    1,113,753    Imperial Chemical Industries PLC**                   20,223,438
- --------------------------------------------------------------------------------
                                                                     134,403,957
- --------------------------------------------------------------------------------
Commercial Banks - 2.8%
      383,057    Banco Central Hispanoamericano*                      12,742,176
      228,068    BG Bank A/S                                          13,331,110
      241,062    Corporacion Bancaria de Espana S.A.                  20,086,522
      281,992    Credit Commercial de France**                        22,492,770
    2,428,205    Credito Italiano S.p.A.                              12,705,953
      205,397    Erste Bank Der Oesterreichischen
                   Sparkassen A.G.*,+                                 13,239,824
        2,370    Julius Baer Holding A.G. - Class B**                  6,541,462
    2,260,172    Merita PLC - Class A                                 15,142,250
      135,800    Uniao de Bancos Brasileiros S.A. (GDR)                5,398,050
- --------------------------------------------------------------------------------
                                                                     121,680,117
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   26
<PAGE>

                 JANUS OVERSEAS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Commercial Services - 0.3%
    1,323,790    BTG PLC**                                       $    14,475,485
- --------------------------------------------------------------------------------
Computer Services - 5.1%
      152,295    Atos S.A.*,**                                        25,434,115
      530,154    Cap Gemini S.A.**                                    62,889,116
       88,630    ECsoft Group PLC (ADR)*                               2,658,900
      913,221    Getronics N.V.**,+                                   40,406,529
    2,109,225    Logica PLC**                                         55,720,662
      490,088    Misys PLC**                                          23,558,530
      346,645    WM-Data A.B. - Class B**                             10,436,777
- --------------------------------------------------------------------------------
                                                                     221,104,629
- --------------------------------------------------------------------------------
Computer Software - 2.2%
       52,000    Dassault Systemes S.A. (ADR)                          2,008,500
      578,862    JBA Holdings PLC**                                    5,129,643
    2,008,310    Merkantildata A.S.A.                                 25,312,318
        1,026    NTT Data Corp.**                                     45,192,757
       96,657    Tieto Corp. - Class B                                17,741,460
- --------------------------------------------------------------------------------
                                                                      95,384,678
- --------------------------------------------------------------------------------
Computers - Integrated Systems - 1.0%
       97,285    Saville Systems PLC (ADR)*                            4,852,089
    1,081,305    SEMA Group PLC**                                     39,105,783
- --------------------------------------------------------------------------------
                                                                      43,957,872
- --------------------------------------------------------------------------------
Consumer Products - 0.3%
      313,170    Hagemeyer N.V.**                                     14,957,038
- --------------------------------------------------------------------------------
Diversified Operations - 9.3%
    5,804,000    Citic Pacific, Ltd.                                  17,832,981
   22,601,800    First Pacific Co., Ltd.                              10,868,983
    1,906,886    Hays PLC**                                           32,425,147
      851,000    Hutchison Whampoa, Ltd.                               5,262,410
      151,497    Lagardere S.C.A.**                                    5,790,243
       55,694    Preussag A.G.**                                      19,800,965
      284,740    Quinenco S.A. (ADR)                                   2,936,381
      121,515    Ratin A/S - B Shares*                                23,350,577
   21,581,960    Rentokil Initial PLC**                              140,731,645
    4,754,270    Siebe PLC**                                         108,108,296
      947,000    Swire Pacific, Ltd. - Class A                         4,731,301
      662,195    TI Group PLC**                                        5,978,826
    2,722,883    Tomkins PLC**                                        16,048,128
    1,494,294    Williams PLC**                                       11,467,929
- --------------------------------------------------------------------------------
                                                                     405,333,812
- --------------------------------------------------------------------------------
Drug Delivery Systems - 0.9%
      636,489    Elan Corp. PLC (ADR)*                                39,541,879
- --------------------------------------------------------------------------------
Educational Software - 0.2%
      177,860    CBT Group PLC (ADR)*                                  9,048,628
- --------------------------------------------------------------------------------
Electric - Distribution - 0.4%
    3,904,000    CLP Holdings, Ltd.                                   18,748,751
- --------------------------------------------------------------------------------
Electric - Integrated - 0.2%
      116,450    Companhia Energetica de Minas Gerais (ADR)            5,458,594
      195,550    Companhia Paranaense de Energia-Copel (ADR)           2,786,588
       56,575    Mosenergo (ADR)*,+                                    2,008,412
- --------------------------------------------------------------------------------
                                                                      10,253,594
- --------------------------------------------------------------------------------
Electric Products - 0.2%
      528,000    Hitachi, Ltd.**                                       3,792,264
      242,644    Samsung Electronics+                                  6,830,429
- --------------------------------------------------------------------------------
                                                                      10,622,693
- --------------------------------------------------------------------------------
Electronic Components - 3.5%
    1,049,002    Electrocomponents PLC**                              10,199,111
      633,967    Philips Electronics N.V.**                           55,850,207
      942,346    Philips Electronics N.V. - N.Y. Shares**             84,811,140
- --------------------------------------------------------------------------------
                                                                     150,860,458
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 0.2%
       69,800    ASM Lithography Holding N.V. (ADR)*             $     6,395,425
- --------------------------------------------------------------------------------
Electronic Measuring Instruments - 0.2%
       48,316    Simac Techniek N.V.**                                 8,584,669
- --------------------------------------------------------------------------------
Film Processing - 0.2%
      170,368    GrandVision S.A.**                                    6,851,226
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 0.2%
      591,000    Nomura Securities Co., Ltd.**                         7,223,680
- --------------------------------------------------------------------------------
Finance - Other Services - 0.3%
      239,630    Newcourt Credit Group, Inc.                          11,771,824
- --------------------------------------------------------------------------------
Food - Catering - 0.7%
    1,808,623    Compass Group PLC**                                  31,359,063
- --------------------------------------------------------------------------------
Food - Dairy Products - 0.2%
      258,960    Koninklijke Numico N.V.**                             8,651,165
- --------------------------------------------------------------------------------
Food - Diversified - 0.8%
      195,162    Raisio Group PLC                                     35,822,122
- --------------------------------------------------------------------------------
Food - Retail - 0.9%
    1,222,830    Koninklijke Ahold N.V.**                             38,128,065
- --------------------------------------------------------------------------------
Human Resources - 1.1%
    3,738,455    Capita Group PLC**                                   31,409,751
      645,605    Select Appointments Holdings PLC**                    8,991,831
      323,955    Select Appointments Holdings PLC (ADR)**              8,787,279
- --------------------------------------------------------------------------------
                                                                      49,188,861
- --------------------------------------------------------------------------------
Investment Companies - 0.3%
      197,666    Investor A.B. - B Shares**                           11,161,921
- --------------------------------------------------------------------------------
Investment Management and Advisory Services - 0.2%
      625,382    Amvescap PLC**                                        7,110,343
      539,733    Banca Fideuram                                        3,453,840
- --------------------------------------------------------------------------------
                                                                      10,564,183
- --------------------------------------------------------------------------------
Life and Health Insurance - 0.9%
       47,095    Schweizerische Lebensversicherungs-und
                   Rentenanstalt**                                    39,843,964
- --------------------------------------------------------------------------------
Machinery - General Industrial - 1.9%
      106,363    Mannesmann A.G.**                                    84,402,990
- --------------------------------------------------------------------------------
Medical - Biomedical and Genetic - 0.2%
        7,516    Ares-Serono Group - Class B**                        10,773,364
- --------------------------------------------------------------------------------
Medical - Drugs - 7.2%
    1,897,523    Astra A.B. - Class A**                               38,986,092
      503,723    Merck KGaA**                                         19,649,300
       40,864    Novartis A.G.**                                      67,564,516
      128,642    Novo Nordisk A/S - Class B                           20,866,410
      399,271    Rhone-Poulenc - Class A**                            19,513,165
        1,649    Roche Holding A.G.**                                 16,716,032
      151,251    Sanofi S.A.**                                        18,322,752
      248,401    Schering A.G.**                                      26,646,571
      661,375    SmithKline Beecham PLC (ADR)**                       39,393,148
       81,965    Synthelabo**                                         12,326,561
    1,092,000    Takeda Chemical Industries**                         31,240,137
- --------------------------------------------------------------------------------
                                                                     311,224,684
- --------------------------------------------------------------------------------
Medical - Wholesale Drug Distributors - 0.1%
      284,158    Grupo Casa Autrey S.A. de C.V. (ADR)                  3,765,093
- --------------------------------------------------------------------------------
Medical Products - 0.2%
      634,434    Ortivus A.B. - B Shares*,**,#                        10,657,500
- --------------------------------------------------------------------------------
Metal Processors and Fabricators - 1.0%
    1,238,767    Assa Abloy A.B. - Class B**                          43,219,419
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   27
<PAGE>

                 JANUS OVERSEAS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Money Center Banks - 11.3%
    5,229,926    Banca Commerciale Italiana                      $    26,448,467
   18,469,531    Banca di Roma*                                       34,146,661
      453,080    Bank Austria A.G.                                    35,017,764
      387,402    Barclays PLC**                                       11,179,926
      106,832    Credit Suisse Group**                                23,503,980
      541,222    Deutsche Bank A.G.**                                 41,651,091
      197,837    Dresdner Bank A.G.**                                 10,704,934
      553,852    HSBC Holdings PLC**                                  17,483,645
      674,914    ING Groep N.V.**                                     43,858,250
    5,161,946    Lloyds TSB Group PLC**                               77,461,194
    1,954,636    National Westminster Bank PLC**                      38,900,156
       88,634    Schroders PLC**                                       4,238,407
    1,274,954    Skandinaviska Enskilda Banken - Class A**            21,252,487
    1,203,797    Standard Chartered PLC**                             18,497,159
       49,020    UBS**                                                78,958,038
       97,385    Unidanmark A/S - Class A                              8,182,799
- --------------------------------------------------------------------------------
                                                                     491,484,958
- --------------------------------------------------------------------------------
Mortgage Banks - 0.8%
      469,059      Deutsche Pfandbrief-und
                     Hypothekenbank A.G.**                            36,202,162
- --------------------------------------------------------------------------------
Multi-Line Insurance - 4.9%
       33,504    Allianz A.G.*,**                                     10,303,401
    1,105,177    Assicurazioni Generali                               33,090,128
      114,130    Axa**                                                13,389,657
        6,858    Baloise Holding, Ltd.**                              15,883,763
      196,214    ERGO Versicherungs Gruppe A.G.**                     37,176,301
      161,151    Groupe des Assurances Nationales*,**                  4,587,280
    5,490,532    Istituto Nazionale delle Assicurazioni               16,372,904
       13,466    Pohjola Insurance Group - Class B                       753,867
    1,767,500    Royal & Sun Alliance Insurance Group PLC**           19,630,315
      651,339    Sampo Insurance Co., Ltd. - Class A                  29,410,217
       51,878    Zurich Versicherungs-Gesellschaft**                  31,612,259
- --------------------------------------------------------------------------------
                                                                     212,210,092
- --------------------------------------------------------------------------------
Office Furnishings - 0.6%
      726,868    Koninklijke Ahrend Groep N.V.**,#                    25,182,087
- --------------------------------------------------------------------------------
Oil Companies - Integrated - 2.4%
      436,366    Elf Aquitaine S.A.**                                 57,212,751
       73,375    Lukoil Holding (ADR)                                  4,861,094
      251,612    Total S.A.**                                         29,895,258
      333,375    YPF S.A. (ADR)                                       11,626,453
- --------------------------------------------------------------------------------
                                                                     103,595,556
- --------------------------------------------------------------------------------
Paper and Related Products - 0.1%
      715,500    Kimberly-Clark de Mexico, S.A. de C.V. - Class A      3,510,273
- --------------------------------------------------------------------------------
Publishing - Books - 2.1%
      701,940    Wolters Kluwer N.V.**                                91,750,096
- --------------------------------------------------------------------------------
Recycling - 0.3%
      446,547    Tomra Systems ASA                                    14,369,833
- --------------------------------------------------------------------------------
Reinsurance - 0.2%
       17,782      Muenchener Rueckversicherungs-
                     Gesellschaft A.G.**                               8,125,530
- --------------------------------------------------------------------------------
Retail - Discount - 0%
    1,153,049    Cifra S.A. de C.V.                                    2,012,854
- --------------------------------------------------------------------------------
Retail - Pubs - 0.1%
      916,030    J.D. Wetherspoon PLC**                                4,931,759
- --------------------------------------------------------------------------------
Retail - Restaurants - 0.3%
       96,742    Tele Pizza S.A.*                                     13,900,532
- --------------------------------------------------------------------------------
Security Services - 0.6%
      682,612    Securitas A.B. - Class B**                           25,138,787
- --------------------------------------------------------------------------------
Special Purpose Banks - 0.6%
       48,719    Dexia Belgium (Credit Communal)+                $     6,669,868
      143,798    Dexia France**                                       17,395,990
- --------------------------------------------------------------------------------
                                                                      24,065,858
- --------------------------------------------------------------------------------
Telecommunication Equipment - 3.2%
    1,341,076    Nokia Oyj - Class A                                  89,846,735
      155,945    Nokia Oyj (ADR) - Class A                            10,428,822
      455,437    Telefonaktiebolaget L.M. Ericsson - Class B**        24,011,208
      260,166    Telefonaktiebolaget L.M. Ericsson (ADR)
                   - Class B**                                        13,382,289
- --------------------------------------------------------------------------------
                                                                     137,669,054
- --------------------------------------------------------------------------------
Telecommunication Services - 1.7%
   20,526,000    China Telecom, Ltd.*,+                               38,953,031
      242,066    COLT Telecom Group PLC*,**                            5,221,073
    2,242,344    Energis PLC*,**                                      24,557,255
   11,468,214    Freepages Group PLC*,**                               6,902,947
- --------------------------------------------------------------------------------
                                                                      75,634,306
- --------------------------------------------------------------------------------
Telephone - Integrated - 5.0%
      902,563    Global TeleSystems Group, Inc.*                      42,420,461
      249,106    Hellenic Telecommunication Organization S.A.+         7,129,874
        7,843    Nippon Telegraph & Telephone Corp.**                 68,855,509
      434,675    Nortel Inversora S.A. (ADR)                          12,931,581
      360,351    Portugal Telecom S.A.                                19,364,330
      274,150    Telecom Argentina Stet S.A. (ADR)                     9,869,400
      509,235    Telefonica de Argentina S.A. (ADR)                   19,637,375
       91,475    Telefonica de Espana                                  3,817,085
      560,720    Telefonos de Mexico S.A. (ADR)                       31,750,770
- --------------------------------------------------------------------------------
                                                                     215,776,385
- --------------------------------------------------------------------------------
Tobacco - 0.1%
      298,900    Tabacalera S.A. - Class A+                            6,432,385
- --------------------------------------------------------------------------------
Travel Services - 1.2%
       10,030    Kuoni Reisen A.G. - Class B**                        53,829,820
- --------------------------------------------------------------------------------
Total Common Stock (cost $3,210,500,183)                           4,118,747,992
- --------------------------------------------------------------------------------
Foreign Bonds - 0.4%
ECU
    5,500,000    Cellular Communications International, Inc.,
                   zero coupon senior discount notes,
                   due 4/1/05+                                         4,241,695
JPY
1,860,000,000    STB Cayman Capital, Ltd., 0.50%
                   bank guaranteed notes, due 10/1/07+                11,683,946
- --------------------------------------------------------------------------------
Total Foreign Bonds (cost $20,343,124)                                15,925,641
- --------------------------------------------------------------------------------
Preferred Stock - 3.4%
- --------------------------------------------------------------------------------
Automotive - Cars and Light Trucks - 2.0%
       35,340    Porsche A.G.**                                       88,423,998
- --------------------------------------------------------------------------------
Brewery - 0.1%
    2,926,000    Companhia Cervejaria Brahma                           1,905,449
- --------------------------------------------------------------------------------
Electric - Integrated - 0.2%
  146,198,000    Companhia Energetica de Minas Gerais                  7,092,530
   49,000,000    Companhia Paranaense de Energia-Copel                   685,303
- --------------------------------------------------------------------------------
                                                                       7,777,833
- --------------------------------------------------------------------------------
Insurance Brokers - 0.3%
       36,834    Marschollek, Lautenschlaeger
                   und Partner A.G.**                                 13,916,686
- --------------------------------------------------------------------------------
Oil Companies - Integrated - 0.1%
   12,681,000    Petroleo Brasileiro S.A.                              3,203,452
- --------------------------------------------------------------------------------
Telephone - Integrated - 0.7%
      260,210    Telecomunicacoes Brasileiras S.A. (ADR)              31,696,831
- --------------------------------------------------------------------------------
Total Preferred Stock (cost $134,856,614)                            146,924,249
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   28
<PAGE>

                 JANUS OVERSEAS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Rights - 0%
       91,475    Telefonica de Espana* (cost $0)                 $        70,820
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 0.9%
                 Household Finance Corp.
$  37,900,000      5.51%, 5/1/98 (amortized cost $37,900,000)         37,900,000
- --------------------------------------------------------------------------------
Total Investments (total cost $3,403,599,921) - 99.4%              4,319,568,702
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 0.6%         27,077,234
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $ 4,346,645,936
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Argentina                              1.3%                       $   54,064,809
Austria                                1.1%                           48,257,588
Belgium                                0.1%                            6,669,868
Brazil                                 1.6%                           69,461,688
Canada                                 0.3%                           11,771,823
Chile                                  0.1%                            5,540,915
Denmark                                1.7%                           72,985,987
Finland                                4.6%                          199,145,472
France                                 8.3%                          356,802,992
Germany                               11.5%                          496,472,614
Greece                                 0.2%                            7,129,874
Hong Kong                              2.2%                           96,397,455
Ireland                                1.2%                           53,442,595
Italy                                  5.8%                          249,736,135
Japan                                  5.7%                          245,434,915
Luxembourg                             0.1%                            3,728,612
Mexico                                 2.0%                           87,667,210
Netherlands                           11.7%                          507,021,849
Norway                                 1.1%                           45,651,764
Portugal                               0.8%                           35,169,880
Russia                                 0.2%                            6,869,506
South Korea                            0.2%                            6,830,428
Spain                                  1.3%                           57,049,520
Sweden                                 6.7%                          291,441,532
Switzerland                            8.1%                          349,350,179
United Kingdom                        19.9%                          858,098,961
United States++                        2.2%                           97,374,531
- --------------------------------------------------------------------------------
Total                                100.0%                       $4,319,568,702
================================================================================
++Includes Short-Term Securities (1.4% excluding Short-Term Securities)

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                   Currency         Currency        Unrealized
Settlement Date                   Units Sold   Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
British Pound 7/10/98              5,000,000    $   8,331,500         ($116,500)
British Pound 8/7/98              83,000,000      138,128,600        (4,183,200)
British Pound 8/13/98             22,000,000       36,603,600        (1,051,600)
British Pound 10/7/98             33,000,000       54,776,700        (1,081,900)
Dutch Guilder 7/17/98             61,000,000       30,313,572          (288,589)
Dutch Guilder 7/23/98             15,000,000        7,456,751           (86,468)
Dutch Guilder 7/31/98            209,000,000      103,943,900          (865,776)
French Franc 5/28/98               4,000,000          665,447            (7,010)
French Franc 7/23/98             155,220,000       25,904,539          (277,992)
French Franc 7/31/98             375,780,000       62,741,890          (434,349)
French Franc 8/7/98               70,000,000       11,691,804          (156,733)
French Franc 10/21/98             20,000,000        3,353,848           (32,471)
German Deutschemark 5/28/98        2,800,000        1,561,977            11,941
German Deutschemark 7/2/98       109,277,000       61,075,899          (584,413)
German Deutschemark 7/10/98       28,123,000       15,725,229          (187,660)
German Deutschemark 10/21/98      22,000,000       12,369,975          (118,314)
Japanese Yen 7/23/98           7,410,000,000       55,792,353         3,701,826
Japanese Yen 8/7/98            2,370,000,000       17,844,907           407,624
Japanese Yen 10/7/98           3,840,000,000       28,915,815           622,646
Japanese Yen 10/21/98          1,960,000,000       14,759,414           868,576
Japanese Yen 11/4/98             920,000,000        6,928,029           361,987
Japanese Yen 11/19/98          5,500,000,000       41,418,438         4,537,444
Swedish Krona 7/2/98             231,000,000       29,902,526        (1,191,927)
Swedish Krona 7/17/98             84,500,000       10,943,611          (359,944)
Swedish Krona 8/7/98              21,000,000        2,721,547           (90,100)
Swedish Krona 8/14/98             25,000,000        3,240,651           (80,094)
Swiss Franc 5/28/98                8,500,000        5,679,920           122,128
Swiss Franc 6/26/98               65,329,000       43,803,808         1,397,419
Swiss Franc 7/10/98                1,671,000        1,122,305            30,904
Swiss Franc 7/17/98               13,000,000        8,738,321           264,449
Swiss Franc 7/23/98                4,000,000        2,690,523            84,557
Swiss Franc 7/31/98                6,000,000        4,039,588           127,079
- --------------------------------------------------------------------------------
Total                                           $ 853,186,987       $ 1,343,540
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   29
<PAGE>

        JANUS SPECIAL SITUATIONS FUND Portfolio Manager, David C. Decker

     For the first half of the fiscal year, November 1, 1997, to April 30, 1998,
Janus Special Situations Fund gained 23.75%. The S&P 500 Index gained 22.50% for
the same period. Both returns include reinvested dividends.
     The Fund  ranked  14th out of 230  capital  appreciation  funds  tracked by
Lipper Analytical Services,  Inc., a leading mutual fund rating company, for the
12-month period ended April 30, 1998.(1)

Valuation Still Matters
     While I am  enthusiastic  about the  returns of your  fund,  I must also be
realistic about the  sustainability  of such returns.  In truth, 24% is a pretty
good six-month return. Don't get me wrong, I have no reason to believe this bull
market is  coming to an end.  However,  it is my  nature to be  skeptical  and I
firmly  believe the most  dangerous  points in the market  occur when  investors
become complacent about valuations and the returns that are being generated.
     I view  arguments  about the "new era,"  where  traditional  approaches  to
valuation are no longer relevant in a world of no inflation, low interest rates,
and strong sustainable growth,  with a certain degree of skepticism.  I maintain
that the prudent way to invest in a company is to understand valuation and to be
disciplined in its  implementation.  In other words,  if you don't  understand a
company's  valuation  today,  how can you  make a  logical  argument  about  its
valuation  tomorrow?  Remember,  even great companies can become overvalued in a
frothy market.

Continue to Focus on Free Cash Flow
     I am very focused on the free cash flow a company generates.  My definition
of free cash flow is roughly the cash a company generates from its business less
the capital it needs to run its  business.  It is  precisely  the cash left over
from operations that can be reinvested at a high rate of return by management. I
am looking for those companies that are  undervalued  relative to that free cash
flow and have a management  team committed to reinvesting it at a rate of return
that will increase the value of the firm.
     There  is no  question  it is  becoming  more  challenging  to  find  these
companies.  Nonetheless,  a recent  trip to Europe  uncovered a number of unique
investment opportunities with many of the characteristics  mentioned above. Like
Tomkins  PLC,  which the Fund has owned  since  last year and was up 155% in the
period,  these companies would benefit from improving return on invested capital
(ROIC) and accelerating free cash flow.
     Some of the strongest  performers this period were also top performers last
period.  Federal Mogul was up 53%, driven by the excellent financial performance
achieved  by Dick Snell and his  management  team.  The  company  completed  two
acquisitions  (T&N and Fel Pro),  which I believe will add significant  value to
the firm during the next couple of years.  Despite its excellent  performance in
the past 15 months (up more than 150%),  it remains the largest  position in the
Fund  because  I believe  there is a  substantial  amount of value  that will be
created through the integration of T&N, Fel Pro, and Federal Mogul.
     The most  important  contributor  to the Fund this  period was Bally  Total
Fitness,  up 73%.  Bally should  substantially  improve its free cash flow as it
modestly increases prices and offers high margin ancillary products and services
such as personal training.
     I made a  significant  investment  in the  cable  industry  to  reflect  my
conviction  that the  current  value being  accorded  these  companies  does not
reflect  the  significance  of the free cash flow  they will  generate  in a few
years.  Despite the fact that TCI  returned 41% in the period,  I still  believe
there is plenty of room to go. I have in fact now taken significant positions in
Comcast, Media One, TCA Cable, and Time Warner to complement the TCI position. I
believe  strongly  that as the cable  industry  becomes less  capital  intensive
(i.e., uses less cash to fund the current  business),  investors will be able to
value the company's  free cash flow,  something that has not been possible since
the inception of the industry.
     While  there were no  significant  losers,  there were  stocks that did not
perform as well as I expected.  I am consistently  reevaluating my positions not
only to make sure the  valuations are still  attractive,  but also to ensure the
upside  potential is sufficient to warrant its position in the Fund. Dial, Emmis
Broadcasting,  and AC Nielson were sold because I didn't  believe the upside was
as significant as other ideas, including the cable companies mentioned earlier.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 98.9%                  97.1%
  Foreign                                12.0%                  17.1%
Top 10 Equities (% of Assets)            46.9%                  42.3%
Number of Stocks                           50                     58
Cash & Cash Equivalents                   1.1%                   2.9%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Federal-Mogul Corp.                       7.1%                   7.3%
Time Warner, Inc.                         5.9%                   0.5%
CBS Corp.                                 5.8%                    --
Tele-Communications, Inc.
  - Class A                               4.7%                   5.0%
Bally Total Fitness Holding Corp.         4.7%                   4.3%
Chancellor Media Corp.                    4.5%                    --
Valassis Communications, Inc.             3.8%                   3.1%
Comcast Corp. - Special Class A           3.6%                    --
Alliant Techsystems, Inc.                 3.6%                    --
Imperial Chemical Industries
  PLC (ADR)                               3.2%                   4.0%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Cable Television                         13.6%                   5.0%
Diversified Operations                    7.3%                   8.4%
Automotive - Truck Parts
  and Equipment                           7.1%                   7.3%
Printing - Commercial                     5.9%                   7.5%
Multimedia                                5.9%                   0.6%
- --------------------------------------------------------------------------------
Long-Term Outlook Appears Promising
     In  conclusion,  it is not my job to forecast the  direction of the general
market.  My job is to uncover  stocks that are  uniquely  positioned  to improve
their cash flow characteristics and, therefore,  hopefully compound value. While
the near-term vacillations of the market may affect the near-term performance of
the Fund,  in the long term, I believe the Fund will  compound  value over time,
irrespective of the vacillations of the market.
     I appreciate your continued support.

- --------------------------------------------------------------------------------
(1)  A capital  appreciation  fund is  defined  by  Lipper as one that  "aims at
     maximum capital appreciation, frequently by means of 100% or more portfolio
     turnover,  leveraging,   purchasing  unregistered  securities,   purchasing
     options,  etc.  The fund may take large cash  positions."  This  ranking is
     based on total  return,  including  reinvestment  of dividends  and capital
     gains for the stated period.
Past  performance  does not  guarantee  future  results.  Investing  in  special
situation companies may entail greater risks.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   30
<PAGE>

        JANUS SPECIAL SITUATIONS FUND Portfolio Manager, David C. Decker

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus Special Situations Fund and the S&P 500 Index. Janus Special Situations
Fund is  represented by a solid blue line. The S&P 500 Index is represented by a
single dashed black line. The "y" axis reflects the value of the investment. The
"x" axis reflects the  computation  periods from  inception,  December 31, 1996,
through April 30, 1998.  The upper right  quadrant  reflects the ending value of
the  hypothetical  investment  in Janus  Special  Situations  Fund  ($17,424) as
compared  to the S&P 500 Index  ($15,349).  There is a legend in the upper  left
quadrant of the graph which indicates Janus Special  Situations  Fund's one-year
and since  inception  (December 31, 1996) average annual total returns as 60.89%
and 51.66%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

            JANUS SPECIAL SITUATIONS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares                                                              Market Value
- --------------------------------------------------------------------------------
Common Stock - 98.9%
- --------------------------------------------------------------------------------
Advertising Agencies - 0.7%
      200,000    True North Communications, Inc.                 $     6,100,000
- --------------------------------------------------------------------------------
Advertising Sales - 0.5%
      150,000    Lamar Advertising Co. - Class A*                      5,175,000
- --------------------------------------------------------------------------------
Aerospace and Defense - 3.6%
      519,800    Alliant Techsystems, Inc.*                           33,234,713
- --------------------------------------------------------------------------------
Automotive - Truck Parts and Equipment - 7.1%
    1,010,000    Federal-Mogul Corp.                                  65,334,375
- --------------------------------------------------------------------------------
Cable Television - 13.6%
      936,360    Comcast Corp. - Special Class A                      33,533,392
      348,580    TCA Cable TV, Inc.                                   21,524,815
    1,350,000    Tele-Communications, Inc. - Class A*                 43,537,500
      699,740    US WEST Media Group*                                 26,415,185
- --------------------------------------------------------------------------------
                                                                     125,010,892
- --------------------------------------------------------------------------------
Chemicals - Diversified - 4.6%
      400,000    Imperial Chemical Industries PLC (ADR)               29,075,000
      470,000    Solutia, Inc.                                        13,336,250
- --------------------------------------------------------------------------------
                                                                      42,411,250
- --------------------------------------------------------------------------------
Chemicals - Specialty - 1.0%
      175,000    Cytec Industries, Inc.*                               9,581,250
- --------------------------------------------------------------------------------
Circuits - 1.2%
       50,000    Analog Devices, Inc.*                                 1,946,875
      110,000    Linear Technology Corp.                               8,855,000
- --------------------------------------------------------------------------------
                                                                      10,801,875
- --------------------------------------------------------------------------------
Commercial Banks - 2.8%
       50,000    First Empire State Corp.                             25,500,000
- --------------------------------------------------------------------------------
Commercial Services - 1.1%
      300,000    Gartner Group, Inc. - Class A*                        9,937,500
- --------------------------------------------------------------------------------
Computer Software - 0.7%
      200,000    Parametric Technology Co.*                      $     6,393,750
- --------------------------------------------------------------------------------
Computers - Integrated Systems - 2.8%
      968,800    Wang Laboratories, Inc.*                             26,157,600
- --------------------------------------------------------------------------------
Consumer Products - 0.4%
      160,000    Gibson Greetings, Inc.*                               4,185,000
- --------------------------------------------------------------------------------
Cosmetics and Toiletries - 1.7%
    1,019,700    Playtex Products, Inc.*                              15,741,619
- --------------------------------------------------------------------------------
Direct Marketing - 2.4%
      420,000    Catalina Marketing Corp.*                            21,840,000
- --------------------------------------------------------------------------------
Diversified Operations - 7.3%
    1,488,800    CBS Corp.*                                           53,038,500
    2,395,197    Tomkins PLC**                                        14,116,812
- --------------------------------------------------------------------------------
                                                                      67,155,312
- --------------------------------------------------------------------------------
Drug Delivery Systems - 0.4%
      196,550    Atrix Laboratories, Inc.*                             3,587,037
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 4.2%
      475,000    Maxim Integrated Products, Inc.*                     19,178,125
      300,000    Texas Instruments, Inc.                              19,218,750
- --------------------------------------------------------------------------------
                                                                      38,396,875
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 0.4%
      100,000    Charles Schwab Corp.                                  3,500,000
- --------------------------------------------------------------------------------
Heart Monitors - 0.2%
      147,500    Endocardial Solutions, Inc.*                          1,806,875
- --------------------------------------------------------------------------------
Human Resources - 0.2%
      276,423    Capita Group PLC**                                    2,322,451
- --------------------------------------------------------------------------------
Machinery - Farm - 0.9%
      300,000    AGCO Corp.                                            8,025,000
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   31
<PAGE>

            JANUS SPECIAL SITUATIONS FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares                                                              Market Value
- --------------------------------------------------------------------------------
Machinery - General Industrial - 1.3%
      917,400    ITEQ, Inc.*,#                                   $    11,696,850
- --------------------------------------------------------------------------------
Medical - Drugs - 1.9%
      872,110    Astra A.B. - Class A**                               17,918,181
- --------------------------------------------------------------------------------
Money Center Banks - 4.5%
      231,130    Bank of New York Co., Inc.                           13,651,116
      655,475    Barclays PLC**                                       18,916,169
      610,979    Lloyds TSB Group PLC**                                9,168,473
- --------------------------------------------------------------------------------
                                                                      41,735,758
- --------------------------------------------------------------------------------
Multimedia - 5.9%
      687,365    Time Warner, Inc.                                    53,958,153
- --------------------------------------------------------------------------------
Oil Companies - Exploration and Production - 1.1%
    1,503,075    Magnum Hunter Resources, Inc.*,#                     10,239,698
- --------------------------------------------------------------------------------
Printing - Commercial - 5.9%
      900,000    Valassis Communications, Inc.*                       35,325,000
      590,000    World Color Press, Inc.*                             18,880,000
- --------------------------------------------------------------------------------
                                                                      54,205,000
- --------------------------------------------------------------------------------
Publishing - Newspapers - 2.7%
       50,000    Central Newspapers, Inc. - Class A                    3,662,500
      718,420    Harte-Hanks Communications, Inc.                     16,299,154
      350,000    Hollinger International, Inc.                         5,425,000
- --------------------------------------------------------------------------------
                                                                      25,386,654
- --------------------------------------------------------------------------------
Publishing - Periodicals - 0.1%
       24,600    CMP Media, Inc. - Class A*                              568,875
- --------------------------------------------------------------------------------
Radio - 4.5%
      866,005    Chancellor Media Corp.*                              41,081,112
- --------------------------------------------------------------------------------
Real Estate Investment Trusts - 0%
      100,000    Property Capital Trust                                   75,000
- --------------------------------------------------------------------------------
Recreational Centers - 4.7%
    1,403,100    Bally Total Fitness Holding Corp.*,#                 43,145,325
- --------------------------------------------------------------------------------
Retail - Apparel and Shoe - 0.2%
      400,000    Charming Shoppes, Inc.*                               1,862,500
- --------------------------------------------------------------------------------
Shipbuilding - 2.2%
      733,000    Newport News Shipbuilding, Inc.                      19,928,438
- --------------------------------------------------------------------------------
Telephone - Long Distance - 1.8%
      280,000    AT&T Corp.                                           16,817,500
- --------------------------------------------------------------------------------
Television - 4.3%
      600,000    Scandinavian Broadcasting System S.A.*               19,050,000
      405,000    Young Broadcasting Corp. - Class A*                  20,250,000
- --------------------------------------------------------------------------------
                                                                      39,300,000
- --------------------------------------------------------------------------------
Total Common Stock (cost $764,880,824)                               910,117,418
- --------------------------------------------------------------------------------
Total Investments (total cost $764,880,824) - 98.9%                  910,117,418
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 1.1%          9,775,344
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $   919,892,762
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Luxembourg                             2.1%                       $   19,050,000
Sweden                                 2.0%                           17,918,181
United Kingdom                         8.1%                           73,598,905
United States                         87.8%                          799,550,332
- --------------------------------------------------------------------------------
Total                                100.0%                       $  910,117,418
================================================================================

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                   Currency         Currency        Unrealized
Settlement Date                   Units Sold   Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
British Pound 7/10/98              6,500,000    $  10,830,950         ($261,950)
British Pound 8/13/98             12,525,000       20,839,095          (417,495)
British Pound 10/7/98             23,975,000       39,796,103            82,982
Swedish Krona 8/7/98             126,000,000       16,329,281          (475,889)
- --------------------------------------------------------------------------------
Total                                           $  87,795,429       ($1,072,352)
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   32
<PAGE>

            JANUS TWENTY FUND Portfolio Manager, Scott W. Schoelzel

     Janus  Twenty Fund  continued to perform well this first half of our fiscal
year. The Fund gained 26.90% compared to the S&P 500 Index,  which was up 22.50%
for the same period. Both returns include reinvested dividends.
     I'm also  pleased to report  that,  for the 12 months ended April 30, 1998,
Janus  Twenty  Fund  ranked  27th out of 230, or in the top 12%, of funds in the
capital  appreciation  category  as tracked  by Lipper  Analytical  Services,  a
leading mutual fund rating company.(1)
     Janus Twenty Fund continues to invest in a combination  of large,  dominant
multinational  companies  and  faster-growing   medium-sized   companies.   This
strategy, coupled with our increased research effort - including the addition of
five new analysts - helped the fund achieve its impressive  performance.  As the
backbone  of our  investment  team,  I can't say enough  about the  quality  and
caliber of our analytical staff.
     We  benefited  from  our  pharmaceutical,   technology,  telecommunications
equipment and financial services holdings, whose products and services were much
in sync with  demographic and economic  trends in the U.S. and abroad.  Overall,
the Fund continued to reflect my conviction that these industries offer the most
dynamic prospects for growth.

Solid Company Fundamentals Prevail
     The Fund's weighting in technology helped drive its performance.  Companies
that excelled in this industry possessed strong  management,  solid earnings and
long-term  growth  potential.  Among the leaders was Dell Computer Corp.,  which
recorded a 61% first-quarter increase in its stock price. Dell serves as a model
of efficiency and customer  responsiveness  in its industry.  Unlike most of its
competitors, the company builds computers to customer specifications,  and has a
business model that continues to demonstrate superiority quarter after quarter.
     Microsoft was another strong performer.  Currently,  the company's software
is in  high  demand  in the  U.S.  and in  Europe,  and I  anticipate  that  the
introduction of Windows 98 this year, and NT 5.0 early next year, should further
boost earnings.  I'm continuing to monitor the government's  antitrust suit, and
at this time believe  Microsoft has a strong case. In any event, its stock price
may drift for awhile even though,  in my view, its fundamental  prospects remain
intact.
     Another  top-performing  technology  stock  during the  period was  America
Online.  AOL's  dominance  is  evident  in its  shift  from  nonconventional  to
traditional  advertisers  who have  recognized  that  40% to 50% of  individuals
signing up for online services move through the AOL gateway. At this time, AOL's
subscription base is larger than its 15 nearest competitors combined,  including
some of the biggest names in the telecommunications industry.
     Breakthroughs in prescription  drugs produced  substantial gains in several
of our  pharmaceutical  holdings.  Pfizer's  impressive launch of Viagra, a male
impotence treatment, logged over 36,000 prescriptions in its initial week on the
market.   Lipitor,   Warner-Lambert's   market-leading   anti-cholesterol   drug
(co-marketed  with  Pfizer),  recently  reached  an annual  sales  level of $1.5
billion from its January '97 introduction.
     Warner Lambert's performance was also boosted by rising sales of Rezulin, a
treatment for adult-onset  diabetes.  Rezulin prescriptions dropped briefly late
in 1997  following  news of possible  liver damage  linked to the drug. As these
concerns  subsided,  the  increase  in Rezulin  sales  proved  good news for the
company, which consistently maintains a full product pipeline.
     Unfortunately,  Eli Lilly was a pharmaceutical  stock that did not meet our
expectations.  While the fundamentals of this stock remained intact,  slow sales
from the  launch  of  Evista,  a  hormone  replacement  drug,  hurt the  stock's
performance early in the year. However,  our continued research indicates Evista
may  still  become  an  effective  treatment  for  osteoporosis,  and  thus is a
situation we continue to monitor closely.

When is a Stock Too High to Buy?
     The persistence of several key economic factors steered us toward uncharted
waters in terms of  creating an economy  that's  seemingly  healthier  than ever
before.  Among these  factors  were benign  inflation,  low  interest  rates and
booming  businesses  in both the U.S.  and Europe - all  driving  the markets to
unseen heights.  As a result, some investors have become skeptical about whether
today's companies are worth their steep stock prices.
     While  we do not  buy or sell a  stock  based  on any  single  factor,  our
analysts  continually  examine a wide range of the  fundamentals we believe make
for strong  investments.  What we've learned is - in up and down markets - there
are always great companies, and we'll continue to find them.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 88.6%                  91.0%
  Foreign                                 2.4%                   4.2%
Top 20 Equities (% of Assets)            82.2%                  80.1%
Top 10 Equities (% of Assets)            57.2%                  53.1%
Number of Stocks                           29                     34
Cash & Fixed Income Securities           11.4%                   9.0%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Dell Computer Corp.                       8.7%                   5.7%
Pfizer, Inc.                              7.9%                   5.2%
Microsoft Corp.                           7.7%                   5.0%
Warner-Lambert Co.                        5.9%                   4.6%
General Electric Co.                      5.1%                   4.4%
America Online, Inc.                      4.9%                   1.8%
Monsanto Co.                              4.9%                   5.8%
Eli Lilly and Co.                         4.8%                   4.6%
Cisco Systems, Inc.                       4.0%                   1.5%
Lucent Technologies, Inc.                 3.3%                   5.2%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Medical - Drugs                          18.6%                  14.4%
Computer Software                        10.1%                   5.0%
Computers - Micro                         8.7%                   5.7%
Diversified Operations                    6.8%                   5.2%
Money Center Banks                        5.3%                   4.5%
- --------------------------------------------------------------------------------
Going Forward
     I anticipate  that the economy will stay  healthy.  Low  inflation,  strong
domestic growth and high consumer  confidence should all continue.  The economic
crisis in Asia, while still difficult to predict,  seems to have settled for the
time being. Our strategy going forward will be to continue focusing on companies
with predictable earnings, solid growth potential,  strong market presence and a
powerful franchise.
     In closing, I'd like to thank you for investing with Janus Twenty Fund. You
have my personal commitment that we are all working very hard on your behalf.

- --------------------------------------------------------------------------------
(1)  A capital  appreciation  fund is  defined  by  Lipper as one that  "aims at
     maximum capital appreciation, frequently by means of 100% or more portfolio
     turnover,  leveraging,   purchasing  unregistered  securities,   purchasing
     options,  etc.  The fund may take  large cash  positions."  As of April 30,
     1998,  Janus Twenty Fund ranked 4/132  capital  appreciation  funds for the
     3-year period,  9/87 for the 5-year period,  and 1/55 funds for the 10-year
     period.  This ranking is based on total return,  including  reinvestment of
     dividends and capital gains for the stated period.
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   33
<PAGE>

            JANUS TWENTY FUND Portfolio Manager, Scott W. Schoelzel

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus Twenty Fund and the S&P 500 Index.  Janus Twenty Fund is represented by
a solid blue line.  The S&P 500 Index is  represented  by a single  dashed black
line. The "y" axis reflects the value of the  investment.  The "x" axis reflects
the computation periods from inception,  April 30, 1985, through April 30, 1998.
The  upper  right  quadrant  reflects  the  ending  value  of  the  hypothetical
investment  in Janus  Twenty  Fund  ($96,660)  as  compared to the S&P 500 Index
($91,051).  There is a legend  in the upper  left  quadrant  of the graph  which
indicates Janus Twenty Fund's one-year,  five-year, ten-year and since inception
(April 30, 1985)  average  annual total  returns as 52.08%,  23.11%,  23.07% and
19.07%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                  JANUS TWENTY FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 88.6%
- --------------------------------------------------------------------------------
Agricultural Biotechnology - 4.9%
    7,432,025    Monsanto Co.                                    $   392,968,322
- --------------------------------------------------------------------------------
Airlines - 1.5%
    1,401,560    UAL Corp.*,#                                        122,198,512
- --------------------------------------------------------------------------------
Applications Software - 0.7%
      994,337    Intuit, Inc.*                                        52,886,299
- --------------------------------------------------------------------------------
Beverages - Non-Alcoholic - 1.1%
    2,365,625    Coca-Cola Enterprises, Inc.                          89,302,344
- --------------------------------------------------------------------------------
Cable Television - 0.5%
    1,192,550    Tele-Communications, Inc. - Class A*                 38,459,738
- --------------------------------------------------------------------------------
Commercial Services - 1.5%
    3,650,075    Cendant Corp.*                                       91,251,875
      600,000    Quintiles Transnational Corp.*                       29,700,000
- --------------------------------------------------------------------------------
                                                                     120,951,875
- --------------------------------------------------------------------------------
Computer Software - 10.1%
    6,944,000    Microsoft Corp.*                                    625,828,000
      381,594    SAP A.G.**                                          190,318,864
- --------------------------------------------------------------------------------
                                                                     816,146,864
- --------------------------------------------------------------------------------
Computers - Micro - 8.7%
    8,731,820    Dell Computer Corp.*                                705,094,465
- --------------------------------------------------------------------------------
Diversified Operations - 6.8%
    3,900,000    CBS Corp.*                                          138,937,500
    4,862,300    General Electric Co.                                413,903,287
- --------------------------------------------------------------------------------
                                                                     552,840,787
- --------------------------------------------------------------------------------
Finance - Consumer Loans - 0.5%
      857,998    SLM Holding Corp.                                    36,625,790
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 2.6%
    2,426,905    Merrill Lynch & Co., Inc.                           212,960,914
- --------------------------------------------------------------------------------
Finance - Mortgage Loan Banker - 3.2%
    4,352,975    Fannie Mae                                      $   260,634,378
- --------------------------------------------------------------------------------
Internet Software - 4.9%
    4,945,880    America Online, Inc.*                               395,670,400
- --------------------------------------------------------------------------------
Medical - Drugs - 18.6%
    5,584,875    Eli Lilly and Co.                                   388,497,867
    5,596,015    Pfizer, Inc.                                        636,896,457
    2,530,725    Warner-Lambert Co.                                  478,781,536
- --------------------------------------------------------------------------------
                                                                   1,504,175,860
- --------------------------------------------------------------------------------
Money Center Banks - 5.3%
    1,950,000    BankAmerica Corp.                                   165,750,000
    1,731,575    Citicorp                                            260,602,038
- --------------------------------------------------------------------------------
                                                                     426,352,038
- --------------------------------------------------------------------------------
Multimedia - 3.3%
    3,370,879    Time Warner, Inc.                                   264,614,001
- --------------------------------------------------------------------------------
Networking Products - 4.0%
    4,364,987    Cisco Systems, Inc.*                                319,735,298
- --------------------------------------------------------------------------------
Radio - 0.4%
      725,975    Chancellor Media Corp.*                              34,438,439
- --------------------------------------------------------------------------------
Retail - Building Products - 1.7%
    2,000,000    Home Depot, Inc.                                    139,250,000
- --------------------------------------------------------------------------------
Super-Regional Banks - 2.6%
    1,678,375    U.S. Bancorp                                        213,153,625
- --------------------------------------------------------------------------------
Telecommunication Equipment - 3.3%
    3,536,620    Lucent Technologies, Inc.                           269,225,197
- --------------------------------------------------------------------------------
Telecommunication Services - 0.3%
      600,000    Qwest Communications International, Inc.*            23,137,500
- --------------------------------------------------------------------------------
Telephone - Long Distance - 2.1%
    3,985,745    WorldCom, Inc.*                                     170,515,153
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   34
<PAGE>

                  JANUS TWENTY FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Total Common Stock (cost $4,586,932,820)                         $ 7,161,337,799
- --------------------------------------------------------------------------------
Corporate Bonds - 3.8%
- --------------------------------------------------------------------------------
Retail - Regional Department Stores - 1.5%
                 Fred Meyer, Inc.:
$  70,000,000      7.375% senior notes, due 3/1/05                    70,262,500
   50,000,000      7.45% senior notes, due 3/1/08                     49,875,000
- --------------------------------------------------------------------------------
                                                                     120,137,500
- --------------------------------------------------------------------------------
Telecommunication Services - 2.3%
  190,000,000    Level 3 Communications, Inc., 9.125%
                   senior notes, due 5/1/08                          188,100,000
- --------------------------------------------------------------------------------
Total Corporate Bonds (cost $309,031,723)                            308,237,500
- --------------------------------------------------------------------------------
U.S. Government Obligation - 2.5%
  195,000,000    U.S. Treasury Note, 6.125%
                   due 11/15/27 (cost $200,930,572)                  199,711,200
- --------------------------------------------------------------------------------
Money Market - 0.1%
                 Janus Government Money Market Fund
    6,000,000      5.58% (cost $6,000,000)                             6,000,000
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 0.9%
                 Household Finance Corp.
   68,300,000      5.51%, 5/1/98 (amortized cost $68,300,000)         68,300,000
- --------------------------------------------------------------------------------
Time Deposit - 1.4%
                 First Union Bank North Carolina EDT
  115,000,000      5.50%, 5/1/98 (cost $115,000,000)                 115,000,000
- --------------------------------------------------------------------------------
U.S. Government Agencies - 1.8%
                 Fannie Mae:
   50,000,000      5.70%, 6/30/98                                     49,549,500
  100,000,000      5.75%, 7/27/98                                     98,697,000
- --------------------------------------------------------------------------------
Total U.S. Government Agencies (cost $148,254,750)                   148,246,500
- --------------------------------------------------------------------------------
Total Investments (total cost $5,434,449,865) - 99.1%              8,006,832,999
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 0.9%         71,389,578
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $ 8,078,222,577
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Germany                                2.4%                       $  190,318,864
United States++                       97.6%                        7,816,514,135
- --------------------------------------------------------------------------------
Total                                100.0%                       $8,006,832,999
================================================================================
++Includes Short-Term Securities (93.4% excluding Short-Term Securities)

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                   Currency         Currency        Unrealized
Settlement Date                   Units Sold   Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
German Deutschemark 7/2/98       151,850,000    $  84,870,333       ($2,123,460)
German Deutschemark 7/23/98       51,150,000       28,621,789          (238,493)
German Deutschemark 10/19/98      95,000,000       53,409,794           (59,331)
- --------------------------------------------------------------------------------
Total                                           $ 166,901,916       ($2,421,284)
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   35
<PAGE>

                               JANUS VENTURE FUND
    Portfolio Managers, William H. Bales, Jonathan D. Coleman, James P. Craig

     In our last report to you, we discussed an  aggressive  restructuring  plan
for Janus  Venture  Fund.  We are pleased to report now that our new approach is
beginning to pay off. The Fund  delivered a six-month  total return of 12.61% as
of April 30,  1998.  Its  benchmark,  the  Russell  2000 Index of small  company
stocks, gained 11.88% including reinvested dividends.
     Following a similar trend of the last several years,  small-cap stocks have
underperformed  large-cap  stocks as  investors  have placed an emphasis on more
liquid stocks. Despite the recent  under-performance,  there are good reasons to
remain optimistic about the small-cap market.

Asia and Its Effect on the Fund
     There is still  great  uncertainty  about the  impact of the  recent  Asian
economic weakness on the U.S. markets. Determining the impact the Asian economic
crisis  has had on  small-cap  stocks  is  difficult.  In  general,  small  U.S.
companies have less exposure to the Asian  economies  than larger  multinational
corporations  and should continue to exhibit good growth rates regardless of the
health of foreign economies.
     Against this  backdrop,  we sought to  diversify  the Janus  Venture  Fund,
adding  names in  sectors  that  had  previously  been  under-  represented.  We
decreased investments in industrial, economically sensitive stocks and increased
the Fund's exposure to technology,  bio-sciences, and media. We have reduced the
number of stocks held in the Fund from 200 to approximately 125.

Looking for "Open-Ended Growth Stories"
     We believe there are great  small-cap  franchises with  "open-ended  growth
stories" that will drive long-term earnings growth and, ultimately,  substantial
share price appreciation.  Growth opportunities may be a product of management's
vision  and  determination,  a unique  market  niche,  new  technology,  or some
combination of these. As long as these core strengths remain intact, it's only a
matter of time before the market recognizes and responds to them.
     On the positive side, our investments in the agri-biotech companies,  Delta
and Pine Land Co. and Dekalb Genetics, proved very rewarding. Both companies are
leaders in agricultural genetics and seed biotechnology. Controlling the patents
for genetically engineered seeds that are disease-resistant will be a critically
important asset as agricultural  companies  strive to increase yields and reduce
losses.  Both  companies  recently  received  tender  offers to be  acquired  by
Monsanto Corporation.
     Another  outstanding   performer  was  Orbital  Sciences.   Orbital  has  a
substantial  business and leading  market share in building and launching  small
satellites.  We're particularly excited about their ORBCOMM division, which will
provide  services to companies  based on data  collected  by  Orbital-controlled
satellites.  Potential  applications  include  such  diverse  services  as fleet
management  and  logistics  for trucking  companies and remote meter reading for
utilities spurred by deregulation to provide power to new geographies.
     We also had success with Romac, a specialty staffing company  concentrating
on  high-skilled  temporary  workers  in  accounting/  finance  and  information
technology.  Romac recently acquired a similar company,  Source Services,  which
gives the  combined  company a better  presence  in the top 40 U.S.  cities.  We
believe  the  company  will  continue  to grow at fast  rates as demand  for the
"Knowledge   Force"   continues  to  increase.   On  a  recent  visit  to  Romac
headquarters,  we  observed  the sense of purpose  senior  management  instilled
across the entire company. The top four senior executives sit in cubicles amidst
other employees.  There are no "executive" offices with special perks.  Everyone
pursues a common goal from the same workplace.
     We did have  disappointments  during the quarter.  Our oil and gas holdings
were hit hard by a reduction in oil prices,  which in turn  depressed the demand
for drilling and exploration. We responded by paring back our investments in the
sector, selling such stocks as Camco International, Stolt Comex Seaway, and EVI.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 95.8%                  96.4%
  Foreign                                 4.4%                   5.6%
  European                                4.1%                   3.8%
Top 10 Equities (% of Assets)            22.1%                  17.1%
Number of Stocks                          124                    197
Cash & Cash Equivalents                   4.2%                   3.6%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Delta and Pine Land Co.                   3.5%                   2.1%
Federal-Mogul Corp.                       2.5%                   1.7%
Wind River Systems                        2.4%                   0.9%
First Empire State Corp.                  2.3%                   2.0%
Pittway Corp. - Class A                   2.2%                   1.3%
Orbital Sciences Corp.                    2.0%                    --
Heftel Broadcasting Corp.
  - Class A                               1.9%                   0.7%
Romac International, Inc.                 1.8%                    --
TCA Cable TV, Inc.                        1.8%                    --
Engineering Animation, Inc.               1.7%                   0.5%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                    April 30, 1998        October 31, 1997
Commercial Banks                          6.2%                   4.6%
Medical Drugs                             4.5%                   2.4%
Computer Software                         4.1%                   2.4%
Savings/Loan/Thrifts                      4.0%                  10.1%
Computer Services                         3.8%                   2.8%
- --------------------------------------------------------------------------------
More Resources, More Opportunities
     Our ability to identify  potential  winners  has always  depended  upon our
commitment to intensive,  hands-on research. Smaller companies, because of their
sometimes  illiquid  trading  patterns,  often receive scant  coverage by market
analysts. We do not rely heavily on outside research,  and we believe this gives
us an advantage in identifying the great undiscovered  franchise names. With our
management  and  research  team  firmly  in  place,  we're  able to  search  out
compelling  opportunities,  maintaining the broad  diversification we believe is
essential to small-cap investing.
     At the same time,  fewer  stocks in the Fund allow us to focus more closely
on the  fundamentals  of each.  This means  visiting  the  companies  we own and
meeting with  management at all levels of the  organization.  We supplement this
hands-on  research  by  talking  to  a  company's  competitors,  customers,  and
suppliers,  which gives us a more complete picture of the investment.  We do not
want to be scared out of great companies because of market fluctuations. We feel
such  careful  security  analysis  is vital  and  gives us  conviction  that our
judgment is correct when broader market turmoil might otherwise cause us alarm.
     Thank you for your  ongoing  support as we continue  to take the  necessary
steps to pursue the kind of performance you expect.

- --------------------------------------------------------------------------------
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   36
<PAGE>

                               JANUS VENTURE FUND
    Portfolio Managers, William H. Bales, Jonathan D. Coleman, James P. Craig

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in  Janus  Venture  Fund and the  Russell  2000  Index.  Janus  Venture  Fund is
represented  by a solid blue line.  The Russell 2000 Index is  represented  by a
single dashed black line. The "y" axis reflects the value of the investment. The
"x" axis  reflects  the  computation  periods  from  inception,  April 30, 1985,
through April 30, 1998.  The upper right  quadrant  reflects the ending value of
the  hypothetical  investment in Janus Venture Fund ($75,987) as compared to the
Russell 2000 Index  ($53,742).  There is a legend in the upper left  quadrant of
the graph which indicates Janus Venture Fund's one-year, five-year, ten-year and
since inception (April 30, 1985) average annual total returns as 41.97%, 13.60%,
16.73% and 16.88%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                 JANUS VENTURE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 95.8%
- --------------------------------------------------------------------------------
Advertising Sales -  1.6%
      350,000    Lamar Advertising Co. - Class A*                $    12,075,000
      233,310    Outdoor Systems, Inc.*                                7,407,592
- --------------------------------------------------------------------------------
                                                                      19,482,592
- --------------------------------------------------------------------------------
Aerospace and Defense - 2.0%
      573,695    Orbital Sciences Corp.*                              25,529,427
- --------------------------------------------------------------------------------
Agricultural Biotechnology - 1.4%
      250,000    DEKALB Genetics Corp. - Class B                      17,046,875
- --------------------------------------------------------------------------------
Agricultural Operations - 3.5%
      941,821    Delta and Pine Land Co.                              43,382,630
- --------------------------------------------------------------------------------
Airlines - 0.8%
      255,900    Ryanair Holdings PLC (ADR)*                           9,820,163
- --------------------------------------------------------------------------------
Applications Software - 1.9%
      100,000    HNC Software, Inc.*                                   3,900,000
      250,000    Policy Management Systems Corp.*                     20,156,250
- --------------------------------------------------------------------------------
                                                                      24,056,250
- --------------------------------------------------------------------------------
Automotive -Truck Parts and Equipment - 2.5%
      475,000    Federal-Mogul Corp.                                  30,726,563
- --------------------------------------------------------------------------------
Building Products - Lighting Fixtures - 0.9%
      400,000    Advanced Lighting Technologies, Inc.*                11,100,000
- --------------------------------------------------------------------------------
Cable Television - 2.5%
      350,000    Adelphia Communications Corp. - Class A*              9,843,750
      352,420    TCA Cable TV, Inc.                                   21,761,935
- --------------------------------------------------------------------------------
                                                                      31,605,685
- --------------------------------------------------------------------------------
Chemicals - Diversified - 0.4%
      100,000    Cambrex Corp.                                         5,550,000
- --------------------------------------------------------------------------------
Circuits - 0.8%
      490,000    SIPEX Corp.*                                          9,738,750
- --------------------------------------------------------------------------------
Commercial Banks - 6.2%
      193,025    Community Financial Corp.#                      $     4,439,575
       54,900    First Empire State Corp.                             27,999,000
      191,200    Investors Financial Services Corp.                   10,300,900
      461,600    National Commerce Bancorporation                     20,656,600
      200,000    U.S. Trust Corp.                                     14,200,000
- --------------------------------------------------------------------------------
                                                                      77,596,075
- --------------------------------------------------------------------------------
Commercial Services - 2.1%
      447,900    Central Parking Corp.                                20,995,312
       50,000    International Telecommunication Data
                   Systems, Inc.*                                      1,512,500
      131,250    NCO Group, Inc.*                                      3,273,047
- --------------------------------------------------------------------------------
                                                                      25,780,859
- --------------------------------------------------------------------------------
Computer Data Security - 0.1%
       50,000    VeriSign, Inc.*                                       1,918,750
- --------------------------------------------------------------------------------
Computer Graphics - 1.7%
      450,000    Engineering Animation, Inc.*,#                       21,206,250
- --------------------------------------------------------------------------------
Computer Services - 3.8%
      101,905    BrightStar Information Technology Group, Inc.*        1,592,266
       52,200    Ceridian Corp.*                                       2,952,563
      291,900    Ciber, Inc.*                                          9,486,750
      300,000    Cotelligent Group, Inc.*                              7,743,750
       33,935    DA Consulting Group, Inc.*                              598,104
      203,700    ECsoft Group PLC (ADR)*                               6,111,000
      342,855    Logica PLC                                            9,057,406
       50,985    Manhattan Associates, Inc.*                           1,153,536
      263,455    Technology Solutions Co.*                             8,463,492
- --------------------------------------------------------------------------------
                                                                      47,158,867
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   37
<PAGE>

                 JANUS VENTURE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Computer Software - 4.1%
      200,000    Aspen Technology, Inc.*                         $     9,775,000
       55,000    Brio Technology, Inc.*                                  605,000
      126,627    JBA Holdings PLC                                      1,122,118
      100,000    Learning Co., Inc.*                                   2,862,500
      234,000    Micromuse, Inc.*                                      5,206,500
       91,555    Mobius Management Systems, Inc.*                      1,693,768
      852,337    Wind River Systems*                                  29,512,169
- --------------------------------------------------------------------------------
                                                                      50,777,055
- --------------------------------------------------------------------------------
Computers - Integrated Systems - 0.6%
      285,200    Wang Laboratories, Inc.*                              7,700,400
- --------------------------------------------------------------------------------
Computers - Memory Devices - 0.4%
       95,650    VERITAS Software Corp.*                               5,236,838
- --------------------------------------------------------------------------------
Consulting Services - 0.2%
      116,050    Charles River Associates, Inc.*                       2,785,200
- --------------------------------------------------------------------------------
Data Processing and Management - 2.3%
       92,510    Applied Graphics Technologies, Inc.*                  4,625,500
      269,555    CSG Systems International, Inc.*                     12,264,753
       95,550    i2 Technologies, Inc.*                                6,377,963
      150,000    INSpire Insurance Solutions, Inc.*                    5,043,750
- --------------------------------------------------------------------------------
                                                                      28,311,966
- --------------------------------------------------------------------------------
Diagnostic Equipment - 0.5%
      200,000    Sabratek Corp.*                                       6,500,000
- --------------------------------------------------------------------------------
Direct Marketing - 0.6%
      142,470    Catalina Marketing Corp.*                             7,408,440
- --------------------------------------------------------------------------------
Diversified Operations - 0.6%
      236,100    Roper Industries, Inc.                                7,319,100
- --------------------------------------------------------------------------------
Drug Delivery Systems - 0.4%
      251,900    Atrix Laboratories, Inc.*                             4,597,175
- --------------------------------------------------------------------------------
Electric Products - 0.1%
       78,200    Littelfuse, Inc.*                                     1,974,550
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 0.9%
      400,000    ATMI, Inc.*                                          11,150,000
- --------------------------------------------------------------------------------
Electronic Safety Devices - 2.2%
      363,637    Pittway Corp. - Class A                              27,181,866
- --------------------------------------------------------------------------------
Entertainment Software - 0.6%
    1,000,000    Acclaim Entertainment, Inc.*                          7,625,000
- --------------------------------------------------------------------------------
Fiber Optics - 0.7%
      300,000    Metromedia Fiber Network, Inc. - Class A*             9,262,500
- --------------------------------------------------------------------------------
Finance - Leasing Companies - 0.2%
       36,000    Resource America, Inc.                                2,412,000
- --------------------------------------------------------------------------------
Finance - Mortgage Loan Banker - 1.7%
      594,400    Doral Financial Corp.                                20,878,300
- --------------------------------------------------------------------------------
Finance - Other Services - 1.2%
      300,000    HealthCare Financial Partners, Inc.*                 15,112,500
- --------------------------------------------------------------------------------
Food - Retail - 1.0%
      300,000    Dominick's Supermarkets, Inc.*                       12,018,750
- --------------------------------------------------------------------------------
Food - Wholesale - 1.3%
      450,000    U.S. Foodservice, Inc.*                              15,890,625
- --------------------------------------------------------------------------------
Health Care Cost Containment - 1.5%
      600,000    Concentra Managed Care, Inc.*                        18,675,000
- --------------------------------------------------------------------------------
Hotels and Motels - 0.9%
      175,000    Cavanaughs Hospitality Corp.*                         2,745,312
      300,000    Extended Stay America, Inc.*                          3,918,750
      250,000    Suburban Lodges of America, Inc.*                     4,625,000
- --------------------------------------------------------------------------------
                                                                      11,289,062
- --------------------------------------------------------------------------------
Human Resources - 2.9%
       59,120    Provant, Inc.*                                  $     1,101,110
      200,000    RemedyTemp, Inc. - Class A*                           6,350,000
      863,325    Romac International, Inc.*                           22,878,112
      200,000    Select Appointments Holdings PLC (ADR)                5,425,000
- --------------------------------------------------------------------------------
                                                                      35,754,222
- --------------------------------------------------------------------------------
Instruments - Scientific - 0.9%
      203,050    Dionex Corp.*                                        10,837,794
- --------------------------------------------------------------------------------
Leisure and Recreation and Gaming - 1.2%
      500,000    AMF Bowling, Inc.*                                   14,468,750
- --------------------------------------------------------------------------------
Lottery Services - 0.6%
      200,000    GTECH Holdings Corp.*                                 7,175,000
- --------------------------------------------------------------------------------
Medical - Biomedical and Genetic - 2.1%
      236,300    Immunex Corp.*                                       16,216,087
      141,431    QIAGEN N.V.*                                          9,246,052
- --------------------------------------------------------------------------------
                                                                      25,462,139
- --------------------------------------------------------------------------------
Medical - Drugs - 4.5%
      100,000    Algos Pharmaceuticals Corp.*                          3,287,500
      300,000    Cellegy Pharmaceuticals, Inc.*                        1,706,250
      300,000    Forest Laboratories, Inc.*                           10,856,250
      400,000    MedImmune, Inc.*                                     21,100,000
      400,000    Sepracor, Inc.*                                      18,500,000
- --------------------------------------------------------------------------------
                                                                      55,450,000
- --------------------------------------------------------------------------------
Medical - Generic Drugs - 1.4%
      396,400    Watson Pharmaceuticals, Inc.*                        17,045,200
- --------------------------------------------------------------------------------
Medical - HMO - 0.7%
      350,000    Healthcare Recoveries, Inc.*                          8,356,250
- --------------------------------------------------------------------------------
Medical Instruments - 0.9%
       89,000    ESC Medical Systems, Ltd.*                            2,892,500
      100,000    Sofamor Danek Group, Inc.*                            8,775,000
- --------------------------------------------------------------------------------
                                                                      11,667,500
- --------------------------------------------------------------------------------
Medical Products - 2.6%
      452,500    Henry Schein, Inc.*                                  17,647,500
      300,000    MiniMed, Inc.*                                       15,000,000
- --------------------------------------------------------------------------------
                                                                      32,647,500
- --------------------------------------------------------------------------------
Metal Processors and Fabricators - 0.4%
      200,000    CompX International, Inc.*                            5,025,000
- --------------------------------------------------------------------------------
Music/Clubs - 0.3%
      100,000    SFX Entertainment, Inc. - Class A*                    3,450,000
- --------------------------------------------------------------------------------
Office Furnishings - 0.6%
      225,200    Knoll, Inc.*                                          7,839,775
- --------------------------------------------------------------------------------
Pharmacy Services - 1.4%
      310,000    NCS HealthCare, Inc. - Class A*                       9,106,250
      250,000    Omnicare, Inc.                                        8,562,500
- --------------------------------------------------------------------------------
                                                                      17,668,750
- --------------------------------------------------------------------------------
Printing - Commercial - 1.5%
      469,225    Valassis Communications, Inc.*                       18,417,081
- --------------------------------------------------------------------------------
Professional Sports - 0.2%
      150,000    Championship Auto Racing Teams, Inc.*                 2,831,250
- --------------------------------------------------------------------------------
Property and Casualty Insurance - 0.7%
      354,650    Philadelphia Consolidated Holding Corp.*              8,201,281
- --------------------------------------------------------------------------------
Radio - 2.2%
       36,700    Cox Radio, Inc. - Class A*                            1,775,362
      526,195    Heftel Broadcasting Corp. - Class A*                 23,086,806
       52,685    Jacor Communications, Inc.*                           2,996,459
- --------------------------------------------------------------------------------
                                                                      27,858,627
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   38
<PAGE>

                 JANUS VENTURE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Real Estate Investment Trusts - 0.3%
      167,725    Correctional Properties Trust*                  $     3,868,158
- --------------------------------------------------------------------------------
Recreational Centers - 1.0%
      400,000    Bally Total Fitness Holding Corp.*                   12,300,000
- --------------------------------------------------------------------------------
Rental Auto/Equipment - 1.5%
      400,000    Rent-Way, Inc.*                                      12,550,000
      200,000    Renters Choice, Inc.*                                 5,475,000
- --------------------------------------------------------------------------------
                                                                      18,025,000
- --------------------------------------------------------------------------------
Resorts and Theme Parks - 1.6%
      350,000    Premier Parks, Inc.*                                 19,468,750
- --------------------------------------------------------------------------------
Retail - Arts and Crafts - 0%
       18,500    Michaels Stores, Inc.*                                  559,625
- --------------------------------------------------------------------------------
Retail - Bedding - 1.0%
      200,000    Linens `N Things, Inc.*                              12,050,000
- --------------------------------------------------------------------------------
Retail - Catalog Shopping - 1.1%
      260,000    MSC Industrial Direct Co., Inc. - Class A*           13,227,500
- --------------------------------------------------------------------------------
Retail - Pubs - 0.8%
    1,813,155    J.D. Wetherspoon PLC                                  9,761,736
- --------------------------------------------------------------------------------
Retail - Regional Department Stores - 1.4%
      400,000    Fred Meyer, Inc.*                                    17,950,000
- --------------------------------------------------------------------------------
Retail - Restaurants - 1.5%
      450,000    Papa John's International, Inc.*                     18,787,500
- --------------------------------------------------------------------------------
Savings/Loan/Thrifts - 4.0%
      150,000    Ambanc Holding Co., Inc.                              2,662,500
      165,000    Catskill Financial Corp.                              2,928,750
      192,125    First Bergen Bancorp#                                 3,650,375
      242,350    First Defiance Financial Corp.                        3,635,250
      165,000    First Mutual Bancorp, Inc.                            3,093,750
      120,400    FirstSpartan Financial Corp.                          5,538,400
      200,000    Flushing Financial Corp.                              5,325,000
      257,100    Home Bancorp of Elgin, Inc.                           4,499,250
       66,275    JSB Financial, Inc.                                   3,665,836
      110,500    Provident Financial Holdings, Inc.*                   2,596,750
      101,250    Queens County Bancorp, Inc.                           4,632,187
      245,000    South Street Financial Corp.#                         2,572,500
      175,000    WesterFed Financial Corp.                             4,593,750
- --------------------------------------------------------------------------------
                                                                      49,394,298
- --------------------------------------------------------------------------------
Schools - 0.5%
      500,000    Computer Learning Centers, Inc.*                      6,000,000
- --------------------------------------------------------------------------------
Telecommunication Equipment - 0.5%
      230,800    GeoTel Communications Corp.*                          6,375,850
- --------------------------------------------------------------------------------
Television - 0.9%
      279,185    Univision Communications, Inc. - Class A*            10,696,275
- --------------------------------------------------------------------------------
Vitamins and Nutrition Products - 0.4%
      136,610    Twinlab Corp.*                                        5,361,942
- --------------------------------------------------------------------------------
Total Common Stock (cost $820,400,160)                             1,189,788,816
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 3.1%
                 Household Finance Corp.
  $38,800,000      5.51%, 5/1/98 (amortized cost $38,800,000)         38,800,000
- --------------------------------------------------------------------------------
Total Investments (total cost $859,200,160) - 98.9%                1,228,588,816
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 1.1%         13,243,877
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $ 1,241,832,693
- --------------------------------------------------------------------------------

                       Summary of Investments by Country
                                 April 30, 1998

Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Ireland                                0.8%                       $    9,820,163
Israel                                 0.3%                            3,545,750
Netherlands                            0.8%                            9,246,051
United Kingdom                         2.5%                           31,477,261
United States++                       95.6%                        1,174,499,591
- --------------------------------------------------------------------------------
Total                                100.0%                       $1,228,588,816
================================================================================
++Includes Short-Term Securities (92.4% excluding Short-Term Securities)

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   39
<PAGE>

           JANUS WORLDWIDE FUND Portfolio Manager, Helen Young Hayes

     I am pleased to report  that Janus  Worldwide  Fund  gained  20.61% for the
six-month period ended April 30, 1998,  while its benchmark,  the Morgan Stanley
International  World Index,  was up 18.86%.  Both returns include net reinvested
dividends.(1)
     The Fund  achieved a  top-quartile  performance  rating  again from  Lipper
Analytical  Services,  Inc.,  a leading  mutual  fund  rating  company.  For the
12-month  period ended April 30, 1998,  Janus  Worldwide Fund ranked 38th out of
193 global funds.(2)
     After a  turbulent  start to the year,  most  international  markets  moved
steadily higher during the first quarter,  despite  lingering  concerns that the
Asian crisis would spread to other parts of the globe.  Investors soon realized,
however,  that the downturn in the Far East could actually be a positive for the
global economy.  As prospects for lower  inflation and moderate  economic growth
increased,  many  markets  moved  higher.  Although  the Fund wasn't  completely
insulated from the events that unfolded in Asia, our limited exposure  minimized
their effects.
- --------------------------------------------------------------------------------
Portfolio Profile                   April 30, 1998        October 31, 1997
Equities                                 97.1%                  94.1%
  Foreign                                74.0%                  78.1%
  European                               64.4%                  65.3%
Top 10 Equities (% of Assets)            20.3%                  21.1%
Number of Stocks                          176                    207
Cash & Cash Equivalents                   2.9%                   5.9%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 10 Equity Holdings              April 30, 1998        October 31, 1997
Rentokil Initial PLC                      2.8%                   2.4%
Microsoft Corp.                           2.3%                   0.7%
Siebe PLC                                 2.1%                   2.1%
Cisco Systems, Inc.                       2.0%                   1.4%
Philips Electronics N.V.
  - N.Y. Shares                           2.0%                   3.1%
Mannesman A.G                             2.0%                    --
Akzo Nobel N.V                            1.9%                   2.2%
UBS                                       1.8%                   0.3%
Monsanto Co.                              1.7%                   1.7%
Parametric Technology Co.                 1.7%                   1.4%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Industries                      April 30, 1998      October 31, 1997
Diversified Operations                   11.0%                  10.5%
Money Center Banks                        9.5%                   5.1%
Medical - Drugs                           9.1%                   6.8%
Computer Software                         5.5%                   4.2%
Computer Services                         4.0%                   3.4%
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Top 5 Countries                       April 30, 1998      October 31, 1997
United States                            23.3%                  16.5%
United Kingdom                           13.7%                  15.3%
Germany                                   9.1%                   7.4%
Netherlands                               9.0%                  12.1%
France                                    7.8%                  11.2%
- --------------------------------------------------------------------------------
Still Cautious About Japan
     Our  travels  earlier  in  the  year  convinced  us to  trim  positions  in
developing  Asian markets as well as Japan.  Even so, the Fund was modestly hurt
by Japan's Nippon Telegraph & Telephone, NTT Data, and Sony Corporation,  all of
which underperformed because of the nation's ongoing economic malaise.
     The Japanese  government is  attempting to stimulate the economy  through a
proposed reform package. However, Japanese companies still have not embraced the
corporate  restructuring  and shareholder  value reforms that have propelled the
U.S.  economic  expansion.  Until  Japan  properly  addresses  these  and  other
structural issues, we remain cautious about investing there.

European Markets Steady and Strong
     Our European holdings,  which comprise approximately 65% of the Fund, fared
much better.
     The pending European  Monetary Union (EMU) in 1999, the ongoing move toward
corporate  restructuring,  improving domestic economies,  and the convergence of
European interest rates have all been powerful drivers of continental expansion.
Also  driving  the  market  was  the  continued   consolidation  among  European
industries.
     Among the better performing European stocks were several financial services
companies  that  benefited  from a drop in  interest  rates.  Banca  Commerciale
Italiana and Banc di Roma were among some of our financial  services stocks that
rose more than 25%. Our European  information  technology stocks also fared well
as a result of a positive  economic  backdrop and  increased  computer  spending
stimulated by the Year 2000 and EMU conversions.

Positive Performers in the U.S.
     U.S.  technology  stocks were also among our winning picks. Our holdings in
Microsoft,  Cisco Systems, and Parametric Technology,  discounted by the October
sell-off,   rebounded  nicely,   boosting  the  Fund's  performance.   I  remain
enthusiastic  about these companies  because of their dominant market positions,
differentiated product lines, and limited Asian exposure.
     Many of our other U.S.  stocks also  performed  well as interest  rates and
inflation stayed low and company fundamentals and profitability remained intact.

Expanded Emerging Markets Presence
     Although our  near-term  outlook for the  economies of Korea and  Southeast
Asia  remains  uncertain,  other  developing  countries,  such as those in Latin
America, are home to a number of compelling companies.  Investing selectively in
the Janus tradition, we increased the Fund's emerging markets weighting slightly
by buying strong,  high-quality  franchise names at discounts,  such as Telebras
and China Telecom International Cellular.

The Future of Global Markets
     As a  whole,  I am  optimistic  about  global  markets.  First,  I  believe
inflation will stay benign.  Second,  I continue to see - especially in Europe -
that companies are growing,  improving their  productivity,  restructuring their
businesses,  and repurchasing stock. All of these trends lead to improvements in
earnings  quality,  which are  fundamental to any company's  success.  We remain
cautious about prospects in Southeast Asia, but we continue to set our sights on
companies that can prosper regardless of the economic climate.
     In closing, I want to say that all of us on the international team at Janus
appreciate  your   confidence  and  remain   committed  to  seeking  the  strong
performance you expect.

- --------------------------------------------------------------------------------
(1)  Net dividends  reinvested  are the  dividends  that remain to be reinvested
     after foreign tax  obligations  have been met. Such  obligations  vary from
     country to country.
(2)  A global fund is defined by Lipper as one that "invests at least 25% of its
     portfolio in securities  traded  outside the United States and may own U.S.
     securities as well." As of April 30, 1998,  Janus Worldwide Fund was ranked
     1/119 for the 3-year period,  and 2/54 for the 5-year period.  This ranking
     is based on total return,  including reinvested dividends and capital gains
     for the stated period.
Past performance does not guarantee future results.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   40
<PAGE>

           JANUS WORLDWIDE FUND Portfolio Manager, Helen Young Hayes

Performance Overview

GRAPHIC

A graphic comparison of the change in value of a hypothetical $10,000 investment
in Janus  Worldwide  Fund and the Morgan  Stanley  Capital  International  World
Index.  Janus  Worldwide  Fund is  represented  by a solid blue line. The Morgan
Stanley  Capital  International  World Index is  represented  by a single dashed
black line.  The "y" axis  reflects  the value of the  investment.  The "x" axis
reflects the computation periods from inception, May 15, 1991, through April 30,
1998.  The upper right  quadrant  reflects the ending value of the  hypothetical
investment in Janus  Worldwide  Fund ($39,728) as compared to the Morgan Stanley
Capital International World Index ($23,920). There is a legend in the upper left
quadrant of the graph which indicates Janus Worldwide Fund's one-year, five-year
and since  inception  (May 15, 1991)  average  annual  total  returns as 34.25%,
23.00% and 21.93%, respectively.

*The Fund's inception date       Source - Lipper Analytical Services, Inc. 1998.
Past  performance  does not  guarantee  future  results.  Investment  return and
principal value will fluctuate so that shares, when redeemed,  may be worth more
or less than their original cost. All returns reflect reinvested dividends.  The
Fund's portfolio may differ  significantly from the securities in the Index. The
Index is  unmanaged  and  therefore  does  not  reflect  the  cost of  portfolio
management or trading.

                JANUS WORLDWIDE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Common Stock - 96.3%
Agricultural Biotechnology - 1.7%
    4,518,165    Monsanto Co.                                    $   238,897,974
- --------------------------------------------------------------------------------
Airlines - 0.9%
    1,692,138    Deutsche Lufthansa A.G.**                            40,264,371
        9,540    Sairgroup**                                          12,478,819
    1,400,201    SAS Danmark A/S                                      24,962,736
    1,197,144    SAS Norge ASA - Class B#                             19,984,305
    1,790,855    SAS Sverige A.B.**                                   28,463,681
- --------------------------------------------------------------------------------
                                                                     126,153,912
- --------------------------------------------------------------------------------
Appliances - 1.6%
    2,389,364    Electrolux A.B. - Class B**                         222,300,453
- --------------------------------------------------------------------------------
Applications Software - 1.0%
      804,936    Intuit, Inc.*                                        42,812,533
    2,042,730    PeopleSoft, Inc.*                                    94,986,945
- --------------------------------------------------------------------------------
                                                                     137,799,478
- --------------------------------------------------------------------------------
Athletic Footwear - 0.4%
      302,448    Adidas - Salomon A.G.**                              50,141,226
- --------------------------------------------------------------------------------
Audio and Video Products - 1.4%
    2,379,500    Sony Corp.**                                        198,276,625
- --------------------------------------------------------------------------------
Automotive - Cars and Light Trucks - 2.2%
       57,981    Bayerische Motoren Werke (BMW) A.G.**                63,974,685
    3,651,526    Renault S.A.*,**                                    169,294,762
       87,124    Volkswagen A.G.**                                    69,378,882
- --------------------------------------------------------------------------------
                                                                     302,648,329
- --------------------------------------------------------------------------------
Brewery - 0.5%
    2,590,525    Companhia Cervejaria Brahma (ADR)                    34,162,548
    4,145,700    Fomento Economico Mexicano, S.A. de C.V.             30,667,171
- --------------------------------------------------------------------------------
                                                                      64,829,719
- --------------------------------------------------------------------------------
Broadcast Services and Programming - 0.4%
    1,463,725    Grupo Televisa S.A. (GDR)*                      $    60,012,725
- --------------------------------------------------------------------------------
Building - Heavy Construction - 0.3%
      368,748    Compagnie Francaise d'Etudes
                   et de Construction Technip**                       46,815,315
- --------------------------------------------------------------------------------
Cable Television - 2.3%
    3,547,620    Comcast Corp. - Special Class A                     127,049,141
    5,886,300    Tele-Communications, Inc. - Class A*                189,833,175
- --------------------------------------------------------------------------------
                                                                     316,882,316
- --------------------------------------------------------------------------------
Cellular Telecommunications - 1.6%
      895,133    Cellular Communications International, Inc.*,#       39,385,830
   33,736,000    China Telecom, Ltd.*,+                               64,022,188
      177,900    Millicom International Cellular S.A.*                 6,960,338
      129,883    Telecom Italia Mobile S.p.A.                            743,843
   15,949,437    Telecom Italia S.p.A.                               120,119,195
- --------------------------------------------------------------------------------
                                                                     231,231,394
- --------------------------------------------------------------------------------
Chemicals - Diversified - 3.8%
    1,300,227    Akzo Nobel N.V.**                                   264,483,838
    1,676,190    E.I. du Pont de Nemours and Co.                     122,047,584
      634,924    Hoechst A.G.**                                       25,612,831
    2,273,716    Imperial Chemical Industries PLC**                   41,285,953
    2,973,530    Solutia, Inc.                                        84,373,914
- --------------------------------------------------------------------------------
                                                                     537,804,120
- --------------------------------------------------------------------------------
Circuits - 0%
      151,300    Analog Devices, Inc.*                                 5,891,244
- --------------------------------------------------------------------------------
Commercial Banks - 2.1%
    1,267,546    Banco Central Hispanoamericano*                      42,164,208
      526,696    BG Bank A/S                                          30,786,618
      783,965    Corporacion Bancaria de Espana S.A.                  65,323,982
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   41
<PAGE>

                JANUS WORLDWIDE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Commercial Banks - (continued)
      778,189    Credit Commercial de France**                   $    62,071,358
   10,795,404    Credito Italiano S.p.A.*                             56,488,599
        7,703    Julius Baer Holding A.G. - Class B**                 21,261,130
      437,325    Uniao de Bancos Brasileiros S.A. (GDR)               17,383,669
- --------------------------------------------------------------------------------
                                                                     295,479,564
- --------------------------------------------------------------------------------
Commercial Services - 0.4%
    1,060,950    Quintiles Transnational Corp.*                       52,517,025
- --------------------------------------------------------------------------------
Computer Services - 4.0%
      566,691    Atos S.A.*,**,#                                      94,640,559
    1,533,400    Cap Gemini S.A.**                                   199,008,402
    2,826,216    Getronics N.V.**,+                                  125,049,225
    1,542,951    Logica PLC**                                         40,761,062
    1,149,836    Misys PLC**                                          55,272,617
    1,547,050    WM-Data A.B. - Class B**                             46,578,533
- --------------------------------------------------------------------------------
                                                                     561,310,398
- --------------------------------------------------------------------------------
Computer Software - 5.5%
      344,400    Dassault Systemes S.A. (ADR)                         13,302,450
    2,273,484    JBA Holdings PLC**,#                                 20,146,706
    2,429,040    Merkantildata A.S.A.                                 30,615,110
    3,591,750    Microsoft Corp.*                                    323,706,469
        3,297    NTT Data Corp.**,#                                  145,224,678
    7,449,805    Parametric Technology Co.*                          238,160,953
- --------------------------------------------------------------------------------
                                                                     771,156,366
- --------------------------------------------------------------------------------
Computers - Integrated Systems - 0.1%
      472,415    SEMA Group PLC**                                     17,085,058
- --------------------------------------------------------------------------------
Consumer Products - 0.3%
    1,020,852    Hagemeyer N.V.**                                     48,756,019
- --------------------------------------------------------------------------------
Data Processing and Management - 0.2%
      766,290    First Data Corp.                                     25,958,074
- --------------------------------------------------------------------------------
Diversified Operations - 11.0%
    3,289,780    CBS Corp.*                                          117,198,413
    1,575,000    Citic Pacific, Ltd.                                   4,839,239
   50,527,400    First Pacific Co., Ltd.                              24,298,128
    9,606,179    Hays PLC**                                          163,345,773
    3,074,000    Hutchison Whampoa, Ltd.                              19,008,987
      656,836    Lagardere S.C.A.**                                   25,104,392
      180,745    Preussag A.G.**                                      64,260,520
      406,009    Ratin A/S - B Shares*                                78,019,540
   60,657,830    Rentokil Initial PLC**                              395,537,578
   12,843,220    Siebe PLC**                                         292,044,548
    3,186,500    Swire Pacific, Ltd. - Class A                        15,920,052
    3,120,612    TI Group PLC**                                       28,175,382
    8,897,566    Tomkins PLC**                                        52,440,474
    4,349,365    Tyco International, Ltd.                            237,040,393
    4,230,213    Williams PLC**                                       32,464,685
- --------------------------------------------------------------------------------
                                                                   1,549,698,104
- --------------------------------------------------------------------------------
Drug Delivery Systems - 0.3%
      696,025    Elan Corp. PLC (ADR)*                                43,240,553
- --------------------------------------------------------------------------------
Electric - Integrated - 0.1%
       65,350    Companhia Energetica de Minas Gerais (ADR)            3,063,281
      660,275    Companhia Paranaense de Energia-Copel (ADR)           9,408,919
      131,225    Mosenergo (ADR)*,+                                    4,658,487
- --------------------------------------------------------------------------------
                                                                      17,130,687
- --------------------------------------------------------------------------------
Electric Products - 0.1%
    1,738,000    Hitachi, Ltd.**                                      12,482,871
- --------------------------------------------------------------------------------
Electronic Components - 3.5%
    3,874,885    Electrocomponents PLC**                              37,674,267
    2,043,044    Philips Electronics N.V.**                          179,984,812
    3,066,515    Philips Electronics N.V. - N.Y. Shares**            275,986,350
- --------------------------------------------------------------------------------
                                                                     493,645,429
- --------------------------------------------------------------------------------
Electronic Components - Semiconductors - 1.7%
      227,475    ASM Lithography Holding N.V. (ADR)*             $    20,842,397
    3,383,850    Texas Instruments, Inc.                             216,777,891
- --------------------------------------------------------------------------------
                                                                     237,620,288
- --------------------------------------------------------------------------------
Film Processing - 0%
       48,047    GrandVision S.A.**                                    1,932,175
- --------------------------------------------------------------------------------
Finance - Consumer Loans - 0.1%
       98,755    Household International, Inc.                        12,980,110
- --------------------------------------------------------------------------------
Finance - Investment Bankers/Brokers - 0.2%
      252,155    Morgan Stanley, Dean Witter, Discover and Co.        19,888,726
      605,000    Nomura Securities Co., Ltd.**                         7,394,799
- --------------------------------------------------------------------------------
                                                                      27,283,525
- --------------------------------------------------------------------------------
Finance - Other Services - 0.2%
      513,520    Newcourt Credit Group, Inc.                          25,226,670
- --------------------------------------------------------------------------------
Food - Catering - 0.8%
    6,190,527    Compass Group PLC**                                 107,335,319
- --------------------------------------------------------------------------------
Food - Dairy Products - 0.6%
    2,386,067    Koninklijke Numico N.V.**                            79,712,154
- --------------------------------------------------------------------------------
Food - Diversified - 1.3%
      308,373    Danone**                                             72,766,186
      566,803    Raisio Group PLC                                    104,037,088
- --------------------------------------------------------------------------------
                                                                     176,803,274
- --------------------------------------------------------------------------------
Food - Retail - 0.6%
      370,450    Disco S.A. (ADR)*                                    14,725,388
    2,032,739    Koninklijke Ahold N.V.**                             63,381,178
- --------------------------------------------------------------------------------
                                                                      78,106,566
- --------------------------------------------------------------------------------
Human Resources - 0.4%
    5,875,452    Capita Group PLC**                                   49,364,372
- --------------------------------------------------------------------------------
Investment Companies - 0.3%
      642,352    Investor A.B. - B Shares**                           36,272,714
- --------------------------------------------------------------------------------
Investment Management and Advisory Services - 0.2%
    1,700,937    Amvescap PLC**                                       19,338,973
    1,753,865    Banca Fideuram                                       11,223,270
- --------------------------------------------------------------------------------
                                                                      30,562,243
- --------------------------------------------------------------------------------
Life and Health Insurance - 1.0%
      173,039    Schweizerische Lebensversicherungs-und
                   Rentenanstalt**                                   146,396,850
- --------------------------------------------------------------------------------
Machinery - General Industrial - 2.0%
      345,835    Mannesmann A.G.**                                   274,432,914
- --------------------------------------------------------------------------------
Medical - Biomedical and Genetic - 0.2%
       16,011    Ares-Serono Group - Class B**                        22,950,018
- --------------------------------------------------------------------------------
Medical - Drugs - 9.1%
    6,210,301    Astra A.B. - Class A**                              127,595,493
    1,327,375    Bristol-Myers Squibb Co.                            140,535,828
      841,820    Eli Lilly and Co.                                    58,559,104
    1,629,502    Merck KGaA**                                         63,563,851
      134,701    Novartis A.G.**                                     222,714,562
      438,072    Novo Nordisk A/S - Class B                           71,057,586
      498,400    Pfizer, Inc.                                         56,724,150
    1,318,566    Rhone-Poulenc - Class A**                            64,440,933
        5,326    Roche Holding A.G.**                                 53,990,046
      784,507    Schering A.G.**                                      84,155,949
    1,096,825    SmithKline Beecham PLC (ADR)                         65,329,639
    3,745,000    Takeda Chemical Industries**                        107,137,649
      886,998    Warner-Lambert Co.                                  167,808,934
- --------------------------------------------------------------------------------
                                                                   1,283,613,724
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   42
<PAGE>

                JANUS WORLDWIDE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Medical - Wholesale Drug Distributors - 0.3%
      230,300    Cardinal Health, Inc.                           $    22,166,375
    1,587,813    Grupo Casa Autrey S.A. de C.V. (ADR)#                21,038,522
- --------------------------------------------------------------------------------
                                                                      43,204,897
- --------------------------------------------------------------------------------
Metal Processors and Fabricators - 1.1%
    4,577,514    Assa Abloy A.B. - Class B**,#                       159,705,172
- --------------------------------------------------------------------------------
Money Center Banks - 9.5%
   25,715,421    Banca Commerciale Italiana                          130,046,478
   29,975,350    Banca di Roma*                                       55,418,738
    1,217,477    Bank Austria A.G.                                    94,096,678
      249,650    BankAmerica Corp.                                    21,220,250
    1,245,253    Barclays PLC**                                       35,936,408
      338,021    Credit Suisse Group**                                74,367,595
    1,790,767    Deutsche Bank A.G.**                                137,812,948
      634,664    Dresdner Bank A.G.**                                 34,341,587
    1,542,774    HSBC Holdings PLC**                                  48,701,302
      122,630    ING Groep N.V.**                                      7,968,922
   13,953,434    Lloyds TSB Group PLC**                              209,388,021
    3,356,923    National Westminster Bank PLC**                      66,807,747
      286,406    Schroders PLC**                                      13,695,697
    4,202,693    Skandinaviska Enskilda Banken - Class A**            70,055,609
    3,292,137    Standard Chartered PLC**                             50,585,924
      160,358    UBS**                                               258,293,617
      325,804    Unidanmark A/S - Class A                             27,375,763
- --------------------------------------------------------------------------------
                                                                   1,336,113,284
- --------------------------------------------------------------------------------
Mortgage Banks - 1.0%
    1,777,707    Deutsche Pfandbrief-und
                   Hypothekenbank A.G.**                             137,204,141
- --------------------------------------------------------------------------------
Multi-Line Insurance - 3.7%
      110,994    Allianz A.G.*,**                                     34,133,706
    2,432,516    Assicurazioni Generali                               72,832,014
      370,864    Axa**                                                43,509,521
       24,138    Baloise Holding, Ltd.**                              55,905,844
      571,991    ERGO Versicherungs Gruppe A.G.**                    108,374,068
      349,106    Groupe des Assurances Nationales*,**                  9,937,556
   10,470,849    Istituto Nazionale delle Assicurazioni               31,224,334
    5,975,042    Royal & Sun Alliance Insurance Group PLC**           66,360,370
      166,733    Zurich Versicherungs-Gesellschaft**                 101,600,039
- --------------------------------------------------------------------------------
                                                                     523,877,452
- --------------------------------------------------------------------------------
Multimedia - 0.8%
    1,437,085    Time Warner, Inc.                                   112,811,172
- --------------------------------------------------------------------------------
Networking Products - 2.0%
    3,777,087    Cisco Systems, Inc.*                                276,671,623
- --------------------------------------------------------------------------------
Oil Companies - Integrated - 1.9%
    1,427,277    Elf Aquitaine S.A.**                                187,132,919
      213,900    Lukoil Holding (ADR)                                 14,170,875
      254,833    Total S.A.**                                         30,277,961
    1,199,150    YPF S.A. (ADR)                                       41,820,356
- --------------------------------------------------------------------------------
                                                                     273,402,111
- --------------------------------------------------------------------------------
Paper and Related Products - 0.1%
    2,357,900    Kimberly-Clark de Mexico, S.A. de C.V.
                   - Class A                                          11,567,955
- --------------------------------------------------------------------------------
Publishing - Books - 1.3%
    1,413,657    Wolters Kluwer N.V.**                               184,778,137
- --------------------------------------------------------------------------------
Recycling - 0.3%
    1,463,428    Tomra Systems ASA#                                   47,092,952
- --------------------------------------------------------------------------------
Reinsurance - 0.2%
       58,911    Muenchener Rueckversicherungs-
                   Gesellschaft A.G.**                                26,919,532
- --------------------------------------------------------------------------------
Retail - Discount - 0.2%
    3,825,234    Cifra S.A. de C.V.                              $     6,677,631
      384,115    Costco Companies, Inc.*                              21,462,426
- --------------------------------------------------------------------------------
                                                                      28,140,057
- --------------------------------------------------------------------------------
Security Services - 0.9%
    3,617,675    Securitas A.B. - Class B**,#                        133,229,361
- --------------------------------------------------------------------------------
Special Purpose Banks - 0.7%
      268,842    Dexia Belgium (Credit Communal)                      36,805,779
      482,533    Dexia France**                                       58,374,520
- --------------------------------------------------------------------------------
                                                                      95,180,299
- --------------------------------------------------------------------------------
Telecommunication Equipment - 3.2%
    1,231,100    Nokia Oyj (ADR) - Class A                            82,329,813
    3,203,776    Nokia Oyj - Class A                                 214,640,195
    1,343,392    Telefonaktiebolaget L.M. Ericsson (ADR)
                   - Class B**                                        69,100,726
    1,525,099    Telefonaktiebolaget L.M. Ericsson
                   - Class B**                                        80,405,126
- --------------------------------------------------------------------------------
                                                                     446,475,860
- --------------------------------------------------------------------------------
Telephone - Integrated - 2.9%
       24,386    Nippon Telegraph & Telephone Corp.**                214,090,328
      930,300    Telecom Argentina Stet S.A. (ADR)                    33,490,800
    1,657,745    Telefonica de Argentina S.A. (ADR)                   63,926,792
      298,230    Telefonica de Espana                                 12,444,593
    1,593,835    Telefonos de Mexico S.A. (ADR)                       90,250,907
- --------------------------------------------------------------------------------
                                                                     414,203,420
- --------------------------------------------------------------------------------
Telephone - Long Distance - 1.2%
    1,007,020    AT&T Corp.                                           60,484,139
    2,570,565    WorldCom, Inc.*                                     109,971,984
- --------------------------------------------------------------------------------
                                                                     170,456,123
- --------------------------------------------------------------------------------
Tobacco - 0.2%
      997,000    Tabacalera S.A. - Class A+                           21,455,629
- --------------------------------------------------------------------------------
Travel Services - 0.4%
       10,692    Kuoni Reisen A.G. - Class B**                        57,382,695
- --------------------------------------------------------------------------------
Total Common Stock (cost $10,049,973,384)                         13,518,609,766
- --------------------------------------------------------------------------------
Preferred Stock - 0.8%
- --------------------------------------------------------------------------------
Automotive - Cars and Light Trucks - 0.3%
       15,282    Porsche A.G.**                                       38,236,999
- --------------------------------------------------------------------------------
Brewery - 0.1%
   16,276,000    Companhia Cervejaria Brahma                          10,599,142
- --------------------------------------------------------------------------------
Electric - Integrated - 0.1%
  429,468,000    Companhia Energetica de Minas Gerais                 20,834,858
  181,500,000    Companhia Paranaense de Energia-Copel                 2,538,419
- --------------------------------------------------------------------------------
                                                                      23,373,277
- --------------------------------------------------------------------------------
Insurance Brokers - 0%
       12,980    Marschollek, Lautenschlaeger
                   und Partner A.G.**                                  4,904,126
- --------------------------------------------------------------------------------
Oil Companies - Integrated - 0.1%
   45,032,000    Petroleo Brasileiro S.A.                             11,375,902
- --------------------------------------------------------------------------------
Telephone - Integrated - 0.2%
      228,360    Telecomunicacoes Brasileiras S.A. (ADR)              27,817,103
- --------------------------------------------------------------------------------
Total Preferred Stock (cost $105,612,357)                            116,306,549
- --------------------------------------------------------------------------------
Rights - 0%
      298,230    Telefonica de Espana* (cost $0)                         230,890
- --------------------------------------------------------------------------------
Short-Term Corporate Notes - 0.4%
                 Household Finance Corp.
$  61,700,000      5.51%, 5/1/98 (amortized cost $61,700,000)         61,700,000
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   43
<PAGE>

                JANUS WORLDWIDE FUND April 30, 1998 (unaudited)
- --------------------------------------------------------------------------------
Shares or
Principal Amount                                                    Market Value
- --------------------------------------------------------------------------------
Time Deposit - 0.7%
                 First Union Bank North Carolina EDT
$ 100,000,000      5.50%, 5/1/98 (cost $100,000,000)             $   100,000,000
- --------------------------------------------------------------------------------
U.S. Government Agencies - 0.7%
                 Fannie Mae:
   50,000,000      5.70%, 6/24/98                                     49,597,250
   50,000,000      5.70%, 6/29/98                                     49,557,000
- --------------------------------------------------------------------------------
Total U.S. Government Agencies (cost $99,157,208)                     99,154,250
- --------------------------------------------------------------------------------
Total Investments (total cost $10,416,442,949) - 98.9%            13,896,001,455
- --------------------------------------------------------------------------------
Cash, Receivables and Other Assets, net of Liabilities - 1.1%        151,906,700
- --------------------------------------------------------------------------------
Net Assets - 100%                                                $14,047,908,155
- --------------------------------------------------------------------------------

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   44
<PAGE>

                JANUS WORLDWIDE FUND April 30, 1998 (unaudited)

                       Summary of Investments by Country
                                 April 30, 1998
Country                     % of Investment Securities              Market Value
- --------------------------------------------------------------------------------
Argentina                              1.1%                      $   153,963,335
Austria                                0.7%                           94,096,677
Belgium                                0.3%                           36,805,779
Brazil                                 1.0%                          137,183,841
Canada                                 0.2%                           25,226,670
Denmark                                1.7%                          232,202,242
Finland                                2.9%                          401,007,094
France                                 7.8%                        1,078,609,008
Germany                                9.1%                        1,257,712,336
Hong Kong                              0.9%                          128,088,594
Ireland                                0.3%                           43,240,553
Italy                                  3.4%                          478,096,470
Japan                                  4.9%                          684,606,949
Luxembourg                             0.1%                            6,960,337
Mexico                                 1.6%                          220,214,910
Netherlands                            9.0%                        1,250,943,031
Norway                                 0.7%                           97,692,367
South Africa                           0.1%                           18,829,362
Spain                                  1.0%                          141,619,303
Sweden                                 7.0%                          973,706,867
Switzerland                            7.4%                        1,027,341,215
United Kingdom                        13.7%                        1,909,077,887
United States++                       25.1%                        3,498,776,628
- --------------------------------------------------------------------------------
Total                                100.0%                      $13,896,001,455
================================================================================
++Includes Short-Term Securities (23.3% excluding Short-Term Securities)

                           Forward Currency Contracts
                             Open at April 30, 1998

Currency Sold and                   Currency         Currency        Unrealized
Settlement Date                   Units Sold   Value in $ U.S.       Gain/(Loss)
- --------------------------------------------------------------------------------
British Pound 8/7/98             210,000,000    $ 349,482,000      ($10,584,000)
British Pound 8/13/98             65,000,000      108,147,000        (3,107,000)
British Pound 10/7/98             65,000,000      107,893,500        (2,114,500)
Dutch Guilder 7/17/98            170,000,000       84,480,445          (767,469)
Dutch Guilder 7/23/98             60,000,000       29,827,003          (345,871)
Dutch Guilder 7/31/98            540,000,000      268,563,187        (2,355,673)
French Franc 7/23/98             497,635,000       83,049,900          (891,240)
French Franc 7/31/98           1,112,365,000      185,725,377        (1,723,930)
French Franc 8/7/98              200,000,000       33,405,154          (447,809)
French Franc 10/21/98            150,000,000       25,153,858          (243,535)
German Deutschemark 7/2/98       298,231,000      166,683,993        (2,515,241)
German Deutschemark 7/10/98       15,269,000        8,537,799          (101,888)
German Deutschemark 7/23/98       45,500,000       25,460,243          (127,724)
German Deutschemark 10/21/98      52,000,000       29,238,122          (279,652)
Japanese Yen 5/28/98           8,406,000,000       63,286,613         2,129,730
Japanese Yen 7/23/98           9,000,000,000       67,763,992         4,496,145
Japanese Yen 8/7/98            5,885,200,000       44,312,595         1,012,216
Japanese Yen 10/7/98           18,400,000,000     138,554,947         2,983,514
Japanese Yen 10/21/98          3,028,800,000       22,807,813         1,342,216
Japanese Yen 11/4/98           6,400,000,000       48,194,985         2,518,169
Japanese Yen 11/19/98          13,000,000,000      97,898,127        10,724,867
Swedish Krona 7/2/98             604,114,000       78,201,447        (3,146,997)
Swedish Krona 7/10/98            362,086,000       46,883,505        (1,566,109)
Swedish Krona 8/7/98             132,800,000       17,210,544          (569,774)
Swiss Franc 6/26/98              210,503,000      141,144,562         4,329,600
Swiss Franc 7/10/98                7,188,000        4,827,725           132,937
Swiss Franc 7/17/98               75,000,000       50,413,390         1,525,668
Swiss Franc 7/31/98               20,000,000       13,465,293           423,596
- --------------------------------------------------------------------------------
Total                                          $2,340,613,119       $   730,246
================================================================================

See Notes to Schedules of Investments.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   45
<PAGE>

<TABLE>
<CAPTION>
                            STATEMENTS OF OPERATIONS

For the six months ended                                    Janus        Janus         Janus     Janus Growth      Janus
April 30, 1998, (unaudited)                  Janus        Balanced    Enterprise  Equity Income   and Income      Mercury
(all numbers in thousands)                   Fund           Fund         Fund          Fund          Fund          Fund
- --------------------------------------------------------------------------------------------------------------------------
Investment Income:
<S>                                       <C>           <C>           <C>           <C>           <C>           <C>        
  Interest                                $   19,946    $    4,879    $       88    $      209    $    4,404    $    2,033 
  Dividends                                   82,128         1,981           800           502         7,902         5,159 
  Foreign tax withheld                       (3,197)          (71)          (27)          (10)          (90)         (194)
- --------------------------------------------------------------------------------------------------------------------------
                                              98,877         6,789           861           701        12,216         6,998 
- --------------------------------------------------------------------------------------------------------------------------
Expenses:
  Advisory fees                               65,164         1,572         2,005           387         7,280         6,542 
  Transfer agent fees and expenses            17,596           467           759           122         2,330         2,287 
  Registration fees                              843            68            19            39           221            42 
  Postage and mailing expenses                   610            19            16            13            83            70 
  Custodian fees                               1,629            46            78            42           132           157 
  Printing expenses                            1,015            19            50            15           187           111 
  Audit fees                                      18             8             4             6            14             5 
  Trustees' fees and expenses                     76             2             3             1             8             8 
  Other expenses                                 140             8            --             4            18            37 
- --------------------------------------------------------------------------------------------------------------------------
Total Expenses                                87,091         2,209         2,934           629        10,273         9,259 
- --------------------------------------------------------------------------------------------------------------------------
Expense and Fee Offsets                      (2,372)          (46)          (60)          (14)         (235)         (263)
- --------------------------------------------------------------------------------------------------------------------------
Net Expenses                                  84,719         2,163         2,874           615        10,038         8,996 
- --------------------------------------------------------------------------------------------------------------------------
Net Investment Income/(Loss)                  14,158         4,626       (2,013)            86         2,178       (1,998)
- --------------------------------------------------------------------------------------------------------------------------
Net Realized and Unrealized
 Gain/(Loss) on Investments:
  Net realized gain/(loss) from
   securities transactions                   695,699         8,532        74,568         3,855       149,628       140,573 
  Net realized gain/(loss) from
   foreign currency transactions            (57,712)         (682)       (1,620)         (121)         2,186         2,663 
  Net realized gain/(loss) from
   futures contracts                              --            --            --            --            --            -- 
  Change in net unrealized appreciation
   or depreciation of investments          3,068,449        47,511        23,087        16,035       258,830       257,800 
- --------------------------------------------------------------------------------------------------------------------------
Net Gain/(Loss) on Investments             3,706,436        55,361        96,035        19,769       410,644       401,036 
- --------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in
  Net Assets Resulting from Operations    $3,720,594    $   59,987    $   94,022    $   19,855    $  412,822    $  399,038 
==========================================================================================================================

<CAPTION>
                      STATEMENTS OF OPERATIONS (continued)

                                                                         Janus
For the six months ended                      Janus        Janus        Special        Janus         Janus          Janus
April 30, 1998, (unaudited)                  Olympus     Overseas     Situations      Twenty        Venture      Worldwide
(all numbers in thousands)                    Fund         Fund          Fund          Fund          Fund           Fund
- --------------------------------------------------------------------------------------------------------------------------
Investment Income:                                      
<S>                                        <C>          <C>           <C>           <C>           <C>           <C>       
  Interest                                 $      933   $    6,573    $      575    $   24,336    $    2,754    $   11,162
  Dividends                                     1,834       25,492         2,251        20,003         1,673        71,911
  Foreign tax withheld                           (56)      (3,384)          (91)            --          (31)       (8,655)
- --------------------------------------------------------------------------------------------------------------------------
                                                2,711       28,681         2,735        44,339         4,396        74,418
- --------------------------------------------------------------------------------------------------------------------------
Expenses:                                               
  Advisory fees                                 2,382       11,594         1,999        21,326         4,142        37,505
  Transfer agent fees and expenses                733        3,339           638         6,783         1,204        10,615
  Registration fees                                74          151           243           388            58         (388)
  Postage and mailing expenses                     52           58            44           240            --           134
  Custodian fees                                   44        1,345            58           231            67         2,906
  Printing expenses                                48          123            85           341           129           480
  Audit fees                                       15           20             5            14            10            21
  Trustees' fees and expenses                       4            9             2            23             5            55
  Other expenses                                   13          101            11            54            29           157

Total Expenses                                  3,365       16,740         3,085        29,400         5,644        51,485
- --------------------------------------------------------------------------------------------------------------------------
Expense and Fee Offsets                         (118)        (367)          (77)         (371)         (102)         (986)
- --------------------------------------------------------------------------------------------------------------------------
Net Expenses                                    3,247       16,373         3,008        29,029         5,542        50,499
- --------------------------------------------------------------------------------------------------------------------------
Net Investment Income/(Loss)                    (536)       12,308         (273)        15,310       (1,146)        23,919
- --------------------------------------------------------------------------------------------------------------------------
Net Realized and Unrealized                             
 Gain/(Loss) on Investments:                            
  Net realized gain/(loss) from                         
   securities transactions                     31,314     (48,711)        21,548       203,226        67,493      (62,460)
  Net realized gain/(loss) from                         
   foreign currency transactions              (1,442)       18,686       (1,526)       (2,208)         (251)        62,827
  Net realized gain/(loss) from                         
   futures contracts                               --          693            --            --            --           692
  Change in net unrealized appreciation                 
   or depreciation of investments              96,261      621,915       110,871     1,420,504        78,740     2,213,148
- --------------------------------------------------------------------------------------------------------------------------
Net Gain/(Loss) on Investments                126,133      592,583       130,893     1,621,522       145,982     2,214,207
- --------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in                              
  Net Assets Resulting from Operations     $  125,597   $  604,891    $  130,620    $1,636,832    $  144,836    $2,238,126
==========================================================================================================================
</TABLE>

An Explanation of the Statement of Operations
     This financial  statement  details the Funds' income,  expenses,  gains and
losses  on  securities  and  currency  transactions  and  from  appreciation  or
depreciation of portfolio holdings. The first section in this statement,  called
"Investment  Income,"  reports the  dividends  earned  from stocks and  interest
earned from interest-bearing securities in the portfolio.
     The next section reports the expenses and expense  offsets  incurred by the
Funds,  including the advisory fee paid to the investment advisor,  the transfer
agent fees,  shareholder  servicing  expenses,  printing and postage for mailing
statements, financial reports, and prospectuses to investors.
     The last section  lists the increase or decrease in the value of securities
held in the  Funds'  portfolios.  Funds  realize a gain (or loss) when they sell
their position in a particular security. Unrealized gain (or loss) refers to the
change in net appreciation or depreciation of the Funds'  portfolios  during the
period. This figure is affected by both changes in the market value of portfolio
holdings and by gains (or losses) realized during the reporting period.

<TABLE>
<CAPTION>
                      STATEMENTS OF ASSETS AND LIABILITIES

As of April 30, 1998, (unaudited)                       Janus         Janus         Janus     Janus Growth      Janus
(all numbers in thousands                 Janus       Balanced     Enterprise   Equity Income  and Income      Mercury
except net asset value per share)         Fund          Fund          Fund          Fund          Fund          Fund
- ------------------------------------------------------------------------------------------------------------------------
Assets:
<S>                                    <C>           <C>           <C>           <C>           <C>           <C>        
  Investments at cost                  $15,447,034   $   434,945   $   433,607   $   114,523   $ 2,061,149   $ 1,633,677
========================================================================================================================
  Investments at value                 $21,901,605   $   514,553   $   590,609   $   137,910   $ 2,708,122   $ 2,177,516
  Cash                                       1,610         3,599         1,954           591           567           948
  Receivables:
    Investments sold                       175,302         4,092        11,969         1,007        17,252        52,401
    Fund shares sold                        23,743         2,381         7,142           558         6,631        17,998
    Dividends                               19,719           607           193           183         1,438           525
    Interest                                    20         2,101            --           110           111            -- 
  Other assets                                 132             1             3            --            --            -- 
  Forward currency contracts                    --            --            --            --            --            -- 
- ------------------------------------------------------------------------------------------------------------------------
Total Assets                            22,122,131       527,334       611,870       140,359     2,734,121     2,249,388
- ------------------------------------------------------------------------------------------------------------------------
Liabilities:
  Payables:
    Due to custodian                            --            --            --            --            --            -- 
    Investments purchased                   41,069            36        19,971           213        56,695        47,636
    Fund shares repurchased                 14,784         2,089           975            47         1,176         1,312
    Advisory fees                           11,744           306           342            83         1,430         1,174
    Transfer agent fees and expenses         2,948            93           127            25           395           339
  Accrued expenses                           2,280           112           139            49           436           340
  Forward currency contracts                 1,639            --           400            --         1,568         1,298
- ------------------------------------------------------------------------------------------------------------------------
Total Liabilities                           74,464         2,636        21,954           417        61,700        52,099
- ------------------------------------------------------------------------------------------------------------------------
Net Assets                             $22,047,667   $   524,698   $   589,916   $   139,942   $ 2,672,421   $ 2,197,289
Shares Outstanding, $0.01 Par Value
 (unlimited shares authorized)             754,092        30,563        17,257         8,909        98,473       107,909
========================================================================================================================
Net Asset Value Per Share              $     29.24   $     17.17   $     34.18   $     15.71   $     27.14   $     20.36
========================================================================================================================

<CAPTION>
                STATEMENTS OF ASSETS AND LIABILITIES (continued)

                                                                      Janus
As of April 30, 1998, (unaudited)         Janus         Janus        Special        Janus         Janus         Janus
(all numbers in thousands                Olympus      Overseas     Situations      Twenty        Venture      Worldwide
except net asset value per share)         Fund          Fund          Fund          Fund          Fund          Fund
- ------------------------------------------------------------------------------------------------------------------------
Assets:
<S>                                    <C>           <C>           <C>           <C>           <C>           <C>        
  Investments at cost                  $   561,119   $ 3,403,600   $   764,881   $ 5,434,450   $   859,200   $10,416,443
========================================================================================================================
  Investments at value                 $   774,847   $ 4,319,569   $   910,117   $ 8,006,833   $ 1,228,589   $13,896,001
  Cash                                         532         1,693            --         5,322         5,103         1,561
  Receivables:
    Investments sold                        29,050        31,050        19,944        54,144        24,458        70,766
    Fund shares sold                         8,509        30,683         5,750        30,415         3,711       135,527
    Dividends                                  445        14,036         1,004         2,939           155        38,171
    Interest                                    --             6            --         6,908            --            15
  Other assets                                  --            24            --            46            16            --
  Forward currency contracts                    --         1,344            --            --            --           730
- ------------------------------------------------------------------------------------------------------------------------
Total Assets                               813,383     4,398,405       936,815     8,106,607     1,262,032    14,142,771
- ------------------------------------------------------------------------------------------------------------------------
Liabilities:
  Payables:
    Due to custodian                            --            --         5,028            --            --            --
    Investments purchased                   11,073        46,591         8,896        15,929        17,860        52,325
    Fund shares repurchased                    443         1,614           996         3,486         1,203        32,319
    Advisory fees                              451         2,313           500         4,173           703         7,367
    Transfer agent fees and expenses           115           635           143         1,334           229         1,928
  Accrued expenses                             144           606           287         1,041           204           924
  Forward currency contracts                   285            --         1,072         2,421            --            --
- ------------------------------------------------------------------------------------------------------------------------
Total Liabilities                           12,511        51,759        16,922        28,384        20,199        94,863
- ------------------------------------------------------------------------------------------------------------------------
Net Assets                             $   800,872   $ 4,346,646   $   919,893   $ 8,078,223   $ 1,241,833   $14,047,908
Shares Outstanding, $0.01 Par Value
 (unlimited shares authorized)              38,038       213,261        55,365       208,188        22,353       312,425
========================================================================================================================
Net Asset Value Per Share              $     21.05   $     20.38   $     16.62   $     38.80   $     55.56   $     44.96
========================================================================================================================
</TABLE>

An Explanation of the Statement of Assets and Liabilities
     This financial  statement is often  referred to as the "balance  sheet." It
lists the  assets  and  liabilities  of the funds on the last day of the  fiscal
period.
     The funds'  assets  are  calculated  by adding the value of the  securities
owned,  the receivable for securities  sold but not yet settled,  the receivable
for dividends  declared but not yet received on stocks owned, and the receivable
for fund shares sold to investors  but not yet settled.  The funds'  liabilities
include  payables for  securities  purchased  but not yet  settled,  fund shares
redeemed but not yet paid, and expenses owed but not yet paid.
     There  may be  other  assets  and  liabilities  such  as  forward  currency
contracts.
     The last line of this schedule reports the funds' net asset value (NAV) per
share on the last day of the fiscal  period.  The NAV is  calculated by dividing
the  funds'  net  assets  (assets  minus  liabilities)  by the  number of shares
outstanding.

See Notes to Financial Statements.

       JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   46 and 47
<PAGE>

<TABLE>
<CAPTION>
                      STATEMENTS OF CHANGES IN NET ASSETS

For the six months ended April 30, 1998,
(unaudited) and the fiscal year or                                                     Janus                       Janus
period ended October 31, 1997                              Janus                     Balanced                   Enterprise
(all numbers in thousands)                                 Fund                        Fund                        Fund
- --------------------------------------------------------------------------------------------------------------------------------
                                                      1998          1997          1998          1997          1998          1997
- --------------------------------------------------------------------------------------------------------------------------------
Operations:
<S>                                            <C>           <C>           <C>           <C>           <C>           <C>         
  Net investment income/(loss)                 $    14,158   $   149,574   $     4,626   $     7,455   ($   2,013)   ($   3,766)
  Net realized gain/(loss) from
   investment transactions                         637,987     3,110,339         7,850        34,483        72,948        33,040
  Change in unrealized net appreciation
   or depreciation of investments                3,068,449       495,474        47,511        17,621        23,087      (21,277)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase in Net Assets
 Resulting from Operations                       3,720,594     3,755,387        59,987        59,559        94,022         7,997
- --------------------------------------------------------------------------------------------------------------------------------
Dividends and Distributions to Shareholders:
  Net investment income*                         (149,576)     (120,830)       (5,089)       (6,418)            --            -- 
  Net realized gain from
   investment transactions*                    (3,061,874)   (1,689,077)      (34,067)      (19,020)      (34,479)      (30,151)
- --------------------------------------------------------------------------------------------------------------------------------
Net Decrease from Dividends and Distributions  (3,211,450)   (1,809,907)      (39,156)      (25,438)      (34,479)      (30,151)
- --------------------------------------------------------------------------------------------------------------------------------
Capital Share Transactions:
  Shares sold                                    1,521,437     3,064,802       182,562       218,600       253,575       407,412
  Reinvested dividends and distributions         3,124,552     1,766,166        38,310        24,763        33,924        29,668
  Shares repurchased                           (2,136,800)   (3,060,294)      (77,164)     (124,369)     (308,954)     (595,101)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease)
 from Capital Share Transactions                 2,509,189     1,770,674       143,708       118,994      (21,455)     (158,021)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in Net Assets            3,018,333     3,716,154       164,539       153,115        38,088     (180,175)
Net Assets:
  Beginning of period                           19,029,334    15,313,180       360,159       207,044       551,828       732,003
- --------------------------------------------------------------------------------------------------------------------------------
  End of period                                $22,047,667   $19,029,334   $   524,698   $   360,159   $   589,916   $   551,828
================================================================================================================================
Net Assets Consist of:
  Capital(par value and paid-in surplus)*      $14,888,925   $12,379,736   $   434,808   $   291,100   $   361,498   $   382,952
  Undistributed net investment income/(loss)*       25,097       160,515         1,943         2,406        (2,012)           -- 
  Undistributed net realized
   gain/(loss) from investments*                   680,522     3,104,409         8,336        34,553        73,835        35,367
  Unrealized appreciation of
   investments and foreign currency              6,453,123     3,384,674        79,611        32,100       156,595       133,509
- --------------------------------------------------------------------------------------------------------------------------------
                                               $22,047,667   $19,029,334   $   524,698   $   360,159   $   589,916   $   551,828
================================================================================================================================
Transactions in Fund Shares:
  Shares sold                                       55,155       114,499        11,201        14,343         8,007        13,843
  Reinvested distributions                         128,582        71,795         2,532         1,721         1,155         1,027
- --------------------------------------------------------------------------------------------------------------------------------
Total                                              183,737       186,294        13,733        16,064         9,162        14,870
- --------------------------------------------------------------------------------------------------------------------------------
Shares Repurchased                                (77,796)     (112,847)       (4,700)       (8,152)       (9,786)      (20,455)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in Fund Shares             105,941        73,447         9,033         7,912         (624)       (5,585)
- --------------------------------------------------------------------------------------------------------------------------------
Shares Outstanding Beginning of Period             648,151       574,704        21,530        13,618        17,881        23,466
- --------------------------------------------------------------------------------------------------------------------------------
Shares Outstanding End of Period                   754,092       648,151        30,563        21,530        17,257        17,881
================================================================================================================================
Purchases and Sales of
 Investment Securities:
 (excluding short-term securities)
  Purchases of securities                      $ 7,994,681   $23,008,189   $   304,395   $   411,623   $   348,668   $   654,058
  Proceeds from sales of securities              9,011,078    20,176,583       192,395       334,092       416,122       835,021
  Purchases of long-term
   U.S. government obligations                          --            --         4,058        63,848            --            -- 
  Proceeds from sales of long-term
   U.S. government obligations                          --            --         5,180        45,558            --            -- 
================================================================================================================================

<CAPTION>
                 STATEMENTS OF CHANGES IN NET ASSETS (continued)

For the six months ended April 30, 1998,
(unaudited) and the fiscal year or                          Janus                      Janus                       Janus
period ended October 31, 1997                           Equity Income            Growth and Income                Mercury
(all numbers in thousands)                                  Fund                       Fund                        Fund
- --------------------------------------------------------------------------------------------------------------------------------
                                                      1998          1997          1998          1997          1998          1997
- --------------------------------------------------------------------------------------------------------------------------------
Operations:
<S>                                            <C>           <C>           <C>           <C>           <C>           <C>        
  Net investment income/(loss)                 $        86   $       287   $     2,178   $     4,229   ($   1,998)   $     4,299
  Net realized gain/(loss) from
   investment transactions                           3,734         5,252       151,814       185,980       143,236       198,605
  Change in unrealized net appreciation
   or depreciation of investments                   16,035         6,343       258,830       241,318       257,800       116,617
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase in Net Assets
 Resulting from Operations                          19,855        11,882       412,822       431,527       399,038       319,521
- --------------------------------------------------------------------------------------------------------------------------------
Dividends and Distributions to Shareholders:
  Net investment income*                             (126)         (393)       (2,030)       (6,298)       (4,295)       (8,225)
  Net realized gain from
   investment transactions*                        (5,097)         (992)     (184,658)      (97,951)     (196,658)     (250,204)
- --------------------------------------------------------------------------------------------------------------------------------
Net Decrease from Dividends and Distributions      (5,223)       (1,385)     (186,688)     (104,249)     (200,953)     (258,429)
- --------------------------------------------------------------------------------------------------------------------------------
Capital Share Transactions:
  Shares sold                                      112,898        81,250       696,845       906,848       741,316     1,157,958
  Reinvested dividends and distributions             5,284         1,306       182,898       101,813       196,626       252,800
  Shares repurchased                              (67,197)      (49,157)     (322,455)     (480,123)     (909,787)   (1,503,151)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease)
 from Capital Share Transactions                    50,985        33,399       557,288       528,538        28,155      (92,393)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in Net Assets               65,617        43,896       783,422       855,816       226,240      (31,301)
Net Assets:
  Beginning of period                               74,325        30,429     1,888,999     1,033,183     1,971,049     2,002,350
- --------------------------------------------------------------------------------------------------------------------------------
  End of period                                $   139,942   $    74,325   $ 2,672,421   $ 1,888,999   $ 2,197,289   $ 1,971,049
================================================================================================================================
Net Assets Consist of:
  Capital(par value and paid-in surplus)*      $   112,707   $    61,722   $ 1,875,200   $ 1,317,911   $ 1,516,169   $ 1,488,013
  Undistributed net investment income/(loss)*           46            87           970           823         (781)         5,512
  Undistributed net realized
   gain/(loss) from investments*                     3,801         5,163       150,850       183,694       139,365       192,788
  Unrealized appreciation of
   investments and foreign currency                 23,388         7,353       645,401       386,571       542,536       284,736
- --------------------------------------------------------------------------------------------------------------------------------
                                               $   139,942   $    74,325   $ 2,672,421   $ 1,888,999   $ 2,197,289   $ 1,971,049
================================================================================================================================
Transactions in Fund Shares:
  Shares sold                                        7,915         6,443        28,068        40,425        40,666        65,228
  Reinvested distributions                             401           115         8,047         5,245        12,167        15,284
- --------------------------------------------------------------------------------------------------------------------------------
Total                                                8,316         6,558        36,115        45,670        52,833        80,512
- --------------------------------------------------------------------------------------------------------------------------------
Shares Repurchased                                 (4,724)       (3,936)      (12,984)      (21,857)      (50,598)      (84,844)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in Fund Shares               3,592         2,622        23,131        23,813         2,235       (4,332)
- --------------------------------------------------------------------------------------------------------------------------------
Shares Outstanding Beginning of Period               5,317         2,695        75,342        51,529       105,674       110,006
- --------------------------------------------------------------------------------------------------------------------------------
Shares Outstanding End of Period                     8,909         5,317        98,473        75,342       107,909       105,674
================================================================================================================================
Purchases and Sales of
 Investment Securities:
 (excluding short-term securities)
  Purchases of securities                      $   109,537   $   108,410   $ 1,342,032   $ 2,032,309   $ 1,202,245   $ 2,839,050
  Proceeds from sales of securities                 66,998        79,110       930,830     1,711,207     1,378,035     2,999,417
  Purchases of long-term
   U.S. government obligations                          --         1,000            --            --            --            -- 
  Proceeds from sales of long-term
   U.S. government obligations                          --         1,007            --            --            --            -- 
================================================================================================================================

<CAPTION>
                 STATEMENTS OF CHANGES IN NET ASSETS (continued)

For the six months ended April 30, 1998,
(unaudited) and the fiscal year or                         Janus                       Janus                       Janus
period ended October 31, 1997                             Olympus                    Overseas              Special Situations
(all numbers in thousands)                                 Fund                        Fund                        Fund
- --------------------------------------------------------------------------------------------------------------------------------
                                                      1998          1997          1998          1997          1998       1997(1)  
- --------------------------------------------------------------------------------------------------------------------------------
Operations:
<S>                                            <C>           <C>           <C>           <C>           <C>           <C>         
  Net investment income/(loss)                 ($      536)  $     1,357   $    12,308   $    16,993   ($     273)   ($     109)
  Net realized gain/(loss) from
   investment transactions                          29,872        32,619       (29,332)       86,037        20,022        18,106
  Change in unrealized net appreciation
   or depreciation of investments                   96,261        82,685       621,915       231,923       110,871        33,300
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase in Net Assets
 Resulting from Operations                         125,597       116,661       604,891       334,953       130,620        51,297
- --------------------------------------------------------------------------------------------------------------------------------
Dividends and Distributions to Shareholders:
  Net investment income*                           (1,358)       (3,648)      (16,883)       (2,552)            --            -- 
  Net realized gain from
   investment transactions*                       (24,153)            --      (88,408)      (15,609)      (16,943)            -- 
- --------------------------------------------------------------------------------------------------------------------------------
Net Decrease from Dividends and Distributions     (25,511)       (3,648)     (105,291)      (18,161)      (16,943)            -- 
- --------------------------------------------------------------------------------------------------------------------------------
Capital Share Transactions:
  Shares sold                                      242,214       529,820     2,742,455     4,520,982       610,880       389,647
  Reinvested dividends and distributions            25,145         3,545       102,321        17,781        16,475            -- 
  Shares repurchased                             (182,224)     (463,102)   (2,202,927)   (2,422,988)     (154,916)     (107,167)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease)
 from Capital Share Transactions                    85,135        70,263       641,849     2,115,775       472,439       282,480
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in Net Assets              185,221       183,276     1,141,449     2,432,567       586,116       333,777
Net Assets:
  Beginning of period                              615,651       432,375     3,205,197       772,630       333,777            -- 
- --------------------------------------------------------------------------------------------------------------------------------
  End of period                                $   800,872   $   615,651   $ 4,346,646   $ 3,205,197   $   919,893   $   333,777
================================================================================================================================
Net Assets Consist of:
  Capital(par value and paid-in surplus)*      $   558,836   $   473,702   $ 3,449,554   $ 2,807,706   $   754,919   $   282,480
  Undistributed net investment income/(loss)*        (627)         1,267        14,971        19,546         (273)            -- 
  Undistributed net realized
   gain/(loss) from investments*                    29,217        23,497      (35,173)        82,566        21,076        17,997
  Unrealized appreciation of
   investments and foreign currency                213,446       117,185       917,294       295,379       144,171        33,300
- --------------------------------------------------------------------------------------------------------------------------------
                                               $   800,872   $   615,651   $ 4,346,646   $ 3,205,197   $   919,893   $   333,777
================================================================================================================================
Transactions in Fund Shares:
  Shares sold                                       12,761        33,016       149,474       262,026        40,750        32,037
  Reinvested distributions                           1,469           242         5,911         1,181         1,217            -- 
- --------------------------------------------------------------------------------------------------------------------------------
Total                                               14,230        33,258       155,385       263,207        41,967        32,037
- --------------------------------------------------------------------------------------------------------------------------------
Shares Repurchased                                 (9,633)      (28,918)     (120,823)     (136,692)      (10,306)       (8,333)
- --------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in Fund Shares               4,597         4,340        34,562       126,515        31,661        23,704
- --------------------------------------------------------------------------------------------------------------------------------
Shares Outstanding Beginning of Period              33,441        29,101       178,699        52,184        23,704            -- 
- --------------------------------------------------------------------------------------------------------------------------------
Shares Outstanding End of Period                    38,038        33,441       213,261       178,699        55,365        23,704
================================================================================================================================
Purchases and Sales of
 Investment Securities:
 (excluding short-term securities)
  Purchases of securities                      $   572,081   $ 1,202,420   $ 2,243,997   $ 3,322,515   $   729,664   $   488,802
  Proceeds from sales of securities                507,240     1,107,630     1,399,514     1,331,836       275,134       217,384
  Purchases of long-term
   U.S. government obligations                          --            --            --            --            --            -- 
  Proceeds from sales of long-term
   U.S. government obligations                          --            --            --            --            --            -- 
================================================================================================================================
</TABLE>
(1) Period from December 31, 1996, (inception) to October 31, 1997
*See Note 3 in Notes to Financial Statements.

An Explanation of the Statement of Changes in Net Assets
     This financial statement reports the increase or decrease in the funds' net
assets  during  the  reporting  period.  Changes  in the  funds'  net assets are
attributable  to investment  operations,  dividends,  distributions  and capital
share transactions. This schedule is of importance to investors because it shows
exactly  what  caused the funds'  net asset  size to change  during the  period.
Investors  can use this  information  to  determine  if the funds'  growth was a
result of operations or an increase in the number of shares being purchased.
     The  first  section  summarizes  the  information  from  the  Statement  of
Operations  regarding  changes  in net assets  because of the funds'  investment
performance.  The funds' net assets may also change as a result of dividend  and
capital gains  distributions to investors.  If investors receive their dividends
in cash,  money is taken out of the fund to pay the  distribution.  If investors
reinvest  their  dividends,  the funds' net assets will not be affected.  If you
compare each fund's "Net  decrease  from  dividends  and  distributions"  to the
"Reinvested   dividends   and   distributions,"   you'll  notice  that  dividend
distributions  had little effect on each fund's net assets.  This is because the
majority of Janus investors reinvest their distributions.
     The   reinvestment   of  dividends  is  included   under   "Capital   Share
Transactions."  "Capital Shares" refers to the money investors contribute to the
funds through purchases or withdraw via redemptions.  The fund's net assets will
increase and decrease in value as investors  purchase and redeem shares from the
fund.
     The section  titled "Net Assets  Consist of" breaks down the  components of
the funds' net assets. Because funds must distribute substantially all earnings,
you'll notice that a significant portion of net assets is shareholder capital.

See Notes to Financial Statements.

       JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   48 and 49
<PAGE>

<TABLE>
<CAPTION>
                STATEMENTS OF CHANGES IN NET ASSETS (continued)

For the six months ended April 30, 1998,
(unaudited) and the fiscal year or                         Janus                       Janus                        Janus
period ended October 31, 1997                             Twenty                      Venture                     Worldwide
(all numbers in thousands)                                 Fund                        Fund                         Fund
- ----------------------------------------------------------------------------------------------------------------------------------
                                                      1998          1997          1998          1997           1998           1997
- ----------------------------------------------------------------------------------------------------------------------------------
Operations:
<S>                                            <C>           <C>           <C>           <C>            <C>            <C>        
  Net investment income/(loss)                 $    15,310   $    16,587   ($   1,146)   $     1,510    $    23,919    $    50,795
  Net realized gain from
   investment transactions                         201,018       755,954        67,242       195,359          1,059        655,178
  Change in unrealized net appreciation
   or depreciation of investments                1,420,504       546,527        78,740      (52,099)     2,213,148        690,790
- ----------------------------------------------------------------------------------------------------------------------------------
Net Increase in Net Assets
 Resulting from Operations                       1,636,832     1,319,068       144,836       144,770      2,238,126      1,396,763
- ----------------------------------------------------------------------------------------------------------------------------------
Dividends and Distributions to Shareholders:
  Net investment income*                          (16,587)      (22,661)       (1,510)            --       (50,801)       (21,409)
  Net realized gain from
   investment transactions*                      (752,041)     (663,308)     (193,032)     (155,029)      (672,990)      (285,338)
- ----------------------------------------------------------------------------------------------------------------------------------
Net Decrease from Dividends and Distributions    (768,628)     (685,969)     (194,542)     (155,029)      (723,791)      (306,747)
- ----------------------------------------------------------------------------------------------------------------------------------
Capital Share Transactions:
  Shares sold                                    1,353,529     2,010,346       103,112       179,080      4,302,492      7,204,484
  Reinvested dividends and distributions           754,320       653,113       188,540       150,172        703,565        299,515
  Shares repurchased                             (768,900)   (1,362,932)     (252,454)     (807,968)    (2,830,709)    (2,702,975)
- ----------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease)
 from Capital Share Transactions                 1,338,949     1,300,527        39,198     (478,716)      2,175,348      4,801,024
- ----------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in Net Assets            2,207,153     1,933,626      (10,508)     (488,975)      3,689,683      5,891,040
Net Assets:
  Beginning of period                            5,871,070     3,937,444     1,252,341     1,741,316     10,358,225      4,467,185
- ----------------------------------------------------------------------------------------------------------------------------------
  End of period                                $ 8,078,223   $ 5,871,070   $ 1,241,833   $ 1,252,341    $14,047,908    $10,358,225
==================================================================================================================================
Net Assets Consist of:
  Capital(par value and paid-in surplus)*      $ 5,289,542   $ 3,950,593   $   805,914   $   766,715    $10,567,291    $ 8,391,943
  Undistributed net investment income*              15,291        16,568           776         3,432         42,163         69,045
  Undistributed net realized
   gain/(loss) from investments*                   203,428       754,451        65,754       191,545       (41,790)        630,141
  Unrealized appreciation of
   investments and foreign currency              2,569,962     1,149,458       369,389       290,649      3,480,244      1,267,096
- ----------------------------------------------------------------------------------------------------------------------------------
                                               $ 8,078,223   $ 5,871,070   $ 1,241,833   $ 1,252,341    $14,047,908    $10,358,225
==================================================================================================================================
Transactions in Fund Shares:
  Shares sold                                       38,824        62,858         1,958         3,277        104,809        190,176
  Reinvested distributions                          24,756        23,127         3,903         2,884         18,742          8,941

Total                                               63,580        85,985         5,861         6,161        123,551        199,117
- ----------------------------------------------------------------------------------------------------------------------------------
Shares Repurchased                                (22,393)      (42,422)       (4,792)      (15,340)       (69,771)       (69,584)
- ----------------------------------------------------------------------------------------------------------------------------------
Net Increase/(Decrease) in Fund Shares              41,187        43,563         1,069        (9,179)        53,780        129,533
- ----------------------------------------------------------------------------------------------------------------------------------
Shares Outstanding Beginning of Period             167,001       123,438        21,284        30,463        258,645        129,112
- ----------------------------------------------------------------------------------------------------------------------------------
Shares Outstanding End of Period                   208,188       167,001        22,353        21,284        312,425        258,645
==================================================================================================================================
Purchases and Sales of
 Investment Securities:
 (excluding short-term securities)
  Purchases of securities                      $ 2,408,029   $ 5,967,189   $   624,911   $ 1,754,415    $ 5,395,380    $10,485,393
  Proceeds from sales of securities              1,907,897     5,818,841       786,449     2,388,474      3,660,205      5,673,413
  Purchases of long-term
   U.S. government obligations                     388,670            --            --            --             --             --
  Proceeds from sales of long-term
   U.S. government obligations                     188,367            --            --            --             --             --
==================================================================================================================================
</TABLE>

*See Note 3 in Notes to Financial Statements.

See Notes to Financial Statements.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   50
<PAGE>

<TABLE>
<CAPTION>
                              FINANCIAL HIGHLIGHTS


For a share outstanding during the six  
months ended April 30, 1998, (unaudited)
or through each fiscal year                                                        Janus Fund
or period ended October 31                       1998           1997           1996           1995           1994           1993
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     29.36    $     26.65    $     23.37    $     19.62    $     20.81    $     18.86
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income                           .02            .15            .31            .16            .17            .26
  Net gains or (losses) on securities
   (both realized and unrealized)                4.84           5.69           4.23           3.99          (.03)           2.88
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 4.86           5.84           4.54           4.15            .14           3.14
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)        (.23)          (.21)          (.13)          (.01)          (.39)          (.29)
  Distributions (from capital gains)           (4.75)         (2.92)         (1.13)          (.39)          (.94)          (.90)
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                            (4.98)         (3.13)         (1.26)          (.40)         (1.33)         (1.19)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     29.24    $     29.36    $     26.65    $     23.37    $     19.62    $     20.81
================================================================================================================================
Total Return*                                  20.01%         24.18%         20.31%         21.62%          0.75%         17.41%
================================================================================================================================
Net Assets, End of Period (in thousands)  $22,047,667    $19,029,334    $15,313,180    $11,962,970    $ 9,647,245    $ 9,098,000
Average Net Assets for the Period
 (in thousands)                           $20,161,342    $17,515,216    $13,753,157    $10,559,806    $ 9,338,807    $ 7,335,871
Ratio of Gross Expenses to
 Average Net Assets**(1)                        0.87%          0.87%          0.86%          0.87%             NA             NA
Ratio of Net Expenses to
 Average Net Assets**(1)                        0.85%          0.86%          0.85%          0.86%          0.91%          0.92%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                        0.14%          0.85%          0.91%          1.25%          1.12%          1.55%
Portfolio Turnover Rate**                         83%           132%           104%           118%           139%           127%
Average Commission Per Share              $     .0506    $     .0500    $     .0558             NA             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
For a share outstanding during the six  
months ended April 30, 1998, (unaudited)
or through each fiscal year                                                    Janus Balanced Fund
or period ended October 31                       1998           1997           1996           1995           1994           1993
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     16.73    $     15.20    $     13.72    $     12.17    $     12.23    $     10.64
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income                           .15            .36            .33            .61            .27            .19
  Net gains or (losses) on securities
   (both realized and unrealized)                1.98           2.88           2.22           1.52           (.09)          1.56
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 2.13           3.24           2.55           2.13            .18           1.75
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)        (.20)          (.36)          (.26)          (.58)          (.24)          (.16)
  Distributions (from capital gains)           (1.49)         (1.35)          (.81)             --             --             --
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                            (1.69)         (1.71)         (1.07)          (.58)          (.24)          (.16)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     17.17    $     16.73    $     15.20    $     13.72    $     12.17    $     12.23
================================================================================================================================
Total Return*                                  14.00%         23.38%         19.39%         18.26%          1.51%         16.54%
================================================================================================================================
Net Assets, End of Period (in thousands)  $   524,698    $   360,159    $   207,044    $   124,545    $    93,546    $    72,547
Average Net Assets for the Period
 (in thousands)                           $   431,511    $   283,220    $   158,607    $   107,259    $    86,361    $    43,522
Ratio of Gross Expenses to
 Average Net Assets**(1)                        1.03%          1.12%          1.23%          1.35%             NA             NA
Ratio of Net Expenses to
 Average Net Assets**(1)                        1.01%          1.10%          1.21%          1.32%          1.42%          1.70%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                        2.16%          2.63%          2.35%          2.52%          2.28%          2.15%
Portfolio Turnover Rate**                         95%           139%           151%           185%           167%           131%
Average Commission Per Share              $     .0469    $     .0468    $     .0428             NA             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
For a share outstanding during the six  
months ended April 30, 1998, (unaudited)
or through each fiscal year                                                   Janus Enterprise Fund
or period ended October 31                       1998           1997           1996           1995           1994           1993
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     30.86    $     31.19    $     27.14    $     24.43    $     21.87    $     17.09
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income/(loss)                   (.12)            --             --            .52           (.06)           .04
  Net gains or (losses) on securities
  (both realized and unrealized)                 5.40            .95           5.85           3.09           3.18           4.76
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 5.28            .95           5.85           3.61           3.12           4.80
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)           --             --             --          (.52)          (.02)          (.02)
  Distributions (from capital gains)           (1.96)         (1.28)         (1.80)          (.38)          (.54)             --
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                            (1.96)         (1.28)         (1.80)          (.90)          (.56)          (.02)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     34.18    $     30.86    $     31.19    $     27.14    $     24.43    $     21.87
================================================================================================================================
Total Return*                                  18.15%          3.31%         22.43%         15.46%         14.56%         28.09%
================================================================================================================================
Net Assets, End of Period (in thousands)  $   589,916    $   551,828    $   732,003    $   459,370    $   370,028    $   239,334
Average Net Assets for the Period
 (in thousands)                           $   560,456    $   613,784    $   596,313    $   407,791    $   269,595    $   188,345
Ratio of Gross Expenses to
 Average Net Assets**(1)                        1.06%          1.07%          1.14%          1.26%             NA             NA
Ratio of Net Expenses to
 Average Net Assets**(1)                        1.03%          1.04%          1.12%          1.23%          1.25%          1.36%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                      (0.72%)        (0.61%)        (0.78%)          0.02%        (0.32%)          0.14%
Portfolio Turnover Rate**                        127%           111%            93%           194%           193%           201%
Average Commission Per Share              $     .0351    $     .0360    $     .0333             NA             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>
(1) See "Explanation of the Financial  Highlights." 
*Total return not annualized for periods of less than one full year 
**Annualized for periods of less than one full year 
NA - Disclosure not applicable to prior periods

See Notes to Financial Statements.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   51
<PAGE>

<TABLE>
<CAPTION>
                              FINANCIAL HIGHLIGHTS

For a share outstanding during the six
months ended April 30, 1998, (unaudited)
or through each fiscal year or                                            Janus Growth and Income Fund
period ended October 31                          1998           1997           1996           1995           1994           1993
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     25.07    $     20.05    $     18.13    $     14.69    $     15.24    $     12.95
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income                           .02            .01            .16            .11            .19            .14
  Net gains or (losses) on securities
   (both realized and unrealized)                4.45           6.98           4.01           3.43          (.31)           2.29
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 4.47           6.99           4.17           3.54          (.12)           2.43
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)        (.02)          (.11)          (.08)          (.10)          (.10)          (.14)
  Distributions (from capital gains)           (2.38)         (1.86)         (2.17)             --          (.33)             --
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                            (2.40)         (1.97)         (2.25)          (.10)          (.43)          (.14)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     27.14    $     25.07    $     20.05    $     18.13    $     14.69    $     15.24
================================================================================================================================
Total Return*                                  19.66%         37.78%         25.56%         24.20%        (0.76%)         18.81%
================================================================================================================================
Net Assets, End of Period (in thousands)  $ 2,672,421    $ 1,888,999    $ 1,033,183    $   582,963    $   489,942    $   518,963
Average Net Assets for the Period
 (in thousands)                           $ 2,197,014    $ 1,415,563    $   773,343    $   498,442    $   499,831    $   404,285
Ratio of Gross Expenses to
 Average Net Assets**(3)                        0.94%          0.98%          1.05%          1.19%             NA             NA
Ratio of Net Expenses to
 Average Net Assets**(3)                        0.92%          0.96%          1.03%          1.17%          1.22%          1.28%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                        0.20%          0.30%          0.70%          1.11%          1.26%          1.13%
Portfolio Turnover Rate**                         91%           127%           153%           195%           123%           138%
Average Commission Per Share              $     .0449    $     .0588    $     .0520             NA             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
For a share outstanding during the six
months ended April 30, 1998, (unaudited)
or through each fiscal year or                                                 Janus Mercury Fund
period ended October 31                          1998           1997           1996           1995           1994        1993(1)
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     18.65    $     18.20    $     17.38    $     14.12    $     11.70    $     10.00
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income/(loss)                  (.02)          (.01)            .14            .16            .02          (.01)
  Net gains or (losses) on securities
   (both realized and unrealized)                3.67           2.82           2.74           3.37           2.40           1.71
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 3.65           2.81           2.88           3.53           2.42           1.70
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)        (.04)          (.08)             --          (.16)             --             --
  Distributions (from capital gains)           (1.90)         (2.28)         (2.06)          (.11)             --             --
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                            (1.94)         (2.36)         (2.06)          (.27)             --             --
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     20.36    $     18.65    $     18.20    $     17.38    $     14.12    $     11.70
================================================================================================================================
Total Return*                                  22.29%         17.07%         18.18%         25.53%         20.68%         17.00%
================================================================================================================================
Net Assets, End of Period (in thousands)  $ 2,197,289    $ 1,971,049    $ 2,002,350    $ 1,520,768    $   596,330    $   112,725
Average Net Assets for the Period
 (in thousands)                           $ 1,968,596    $ 2,045,901    $ 1,838,593    $ 1,116,377    $   257,726    $    67,462
Ratio of Gross Expenses to
 Average Net Assets**(3)                        0.95%          0.98%          1.02%          1.14%             NA             NA
Ratio of Net Expenses to
 Average Net Assets**(3)                        0.92%          0.96%          1.00%          1.12%          1.33%          1.75%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                      (0.20%)          0.21%          0.45%          0.50%          0.25%        (0.40%)
Portfolio Turnover Rate**                        127%           157%           177%           201%           283%           151%
Average Commission Per Share              $     .0392    $     .0441    $     .0383             NA             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
For a share outstanding during the six
months ended April 30, 1998, (unaudited)
or through each fiscal year or                                         Janus Overseas Fund
period ended October 31                          1998           1997           1996           1995         1994(2)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, Beginning of Period      $     17.94    $     14.81    $     11.58    $     10.36    $     10.00
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:                                                                   
  Net investment income/(loss)                    .06            .04            .10            .12          (.02)
  Net gains or (losses) on securities                                                                
   (both realized and unrealized)                2.98           3.39           3.34           1.10            .38
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 3.04           3.43           3.44           1.22            .36
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:                                                                                  
  Dividends (from net investment income)        (.10)          (.04)          (.11)             --             --
  Distributions (from capital gains)            (.50)          (.26)          (.10)             --             --
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                             (.60)          (.30)          (.21)             --             --
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     20.38    $     17.94    $     14.81    $     11.58    $     10.36
================================================================================================================================
Total Return*                                  17.55%         23.56%         30.19%         11.78%          3.60%
================================================================================================================================
Net Assets, End of Period (in thousands)  $ 4,346,646    $ 3,205,197    $   772,630    $   110,866    $    64,065
Average Net Assets for the Period                                                                    
 (in thousands)                           $ 3,537,361    $ 2,093,370    $   335,098    $    77,668    $    36,645
Ratio of Gross Expenses to                                                                           
 Average Net Assets**(3)                        0.95%          1.03%          1.26%          1.76%             NA
Ratio of Net Expenses to                                                                             
 Average Net Assets**(3)                        0.93%          1.01%          1.23%          1.73%          2.16%
Ratio of Net Investment Income/(Loss)                                                                
 to Average Net Assets**                        0.70%          0.81%          0.73%          0.36%        (0.64%)
Portfolio Turnover Rate**                         85%            72%            71%           188%           181%
Average Commission Per Share              $     .0282    $     .0329    $     .0234             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>
(1) Fiscal period from May 3, 1993, (inception) to October 31, 1993
(2) Fiscal period from May 2, 1994, (inception) to October 31, 1994
(3) See "Explanation of the Financial Highlights."
*Total return not annualized for periods of less than one full year
**Annualized for periods of less than one full year
NA - Disclosure not applicable to prior periods

See Notes to Financial Statements.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   52
<PAGE>

<TABLE>
<CAPTION>
                              FINANCIAL HIGHLIGHTS

For a share outstanding during the six
months ended April 30, 1998, (unaudited)
each fiscal year or period                                                      Janus Twenty Fund
ended October 31                                 1998           1997           1996           1995           1994           1993
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     35.16    $     31.90    $     30.12    $     24.24    $     25.85    $     22.75
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income/(loss)                    .07          (.09)            .37            .01            .16            .17
  Net gains or (losses) on securities
   (both realized and unrealized)                8.13           8.85           6.68           5.94         (1.07)           3.31
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 8.20           8.76           7.05           5.95          (.91)           3.48
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)        (.10)          (.18)             --          (.07)          (.25)          (.18)
  Distributions (from capital gains)           (4.46)         (5.32)         (5.27)             --          (.45)          (.20)
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                            (4.56)         (5.50)         (5.27)          (.07)          (.70)          (.38)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     38.80    $     35.16    $     31.90    $     30.12    $     24.24    $     25.85
================================================================================================================================
Total Return*                                  26.90%         31.65%         27.59%         24.67%        (3.52%)         15.39%
================================================================================================================================
Net Assets, End of Period (in thousands)  $ 8,078,223    $ 5,871,070    $ 3,937,444    $ 2,995,751    $ 2,742,812    $ 3,748,796
Average Net Assets for the Period
 (in thousands)                           $ 6,557,379    $ 4,989,616    $ 3,385,561    $ 2,716,278    $ 3,051,194    $ 3,545,727
Ratio of Gross Expenses to
 Average Net Assets**(1)                        0.90%          0.93%          0.93%          1.00%             NA             NA
Ratio of Net Expenses to
 Average Net Assets**(1)                        0.89%          0.91%          0.92%          0.99%          1.02%          1.05%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                        0.47%          0.33%          0.67%          0.62%          0.57%          0.87%
Portfolio Turnover Rate**                         70%           123%           137%           147%           102%            99%
Average Commission Per Share              $     .0615    $     .0567    $     .0571             NA             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
For a share outstanding during the six
months ended April 30, 1998, (unaudited)
or through each fiscal year                                                     Janus Venture Fund
or period ended October 31                       1998           1997           1996           1995           1994           1993
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     58.84    $     57.16    $     59.53    $     52.86    $     53.25    $     47.74
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income/(loss)                    .04            .16             --            .05            .11            .66
  Net gains or (losses) on securities
   (both realized and unrealized)                6.04           6.80           5.09           9.49           4.40           6.72
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 6.08           6.96           5.09           9.54           4.51           7.38
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)        (.07)             --          (.01)          (.03)          (.53)         (1.16)
  Distributions (from capital gains)           (9.29)         (5.28)         (7.45)         (2.84)         (4.37)          (.71)
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                            (9.36)         (5.28)         (7.46)         (2.87)         (4.90)         (1.87)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     55.56    $     58.84    $     57.16    $     59.53    $     52.86    $     53.25
================================================================================================================================
Total Return*                                  12.61%         13.38%          9.28%         19.24%          9.23%         15.76%
================================================================================================================================
Net Assets, End of Period (in thousands)  $ 1,241,833    $ 1,252,341    $ 1,741,316    $ 1,753,201    $ 1,550,476    $ 1,836,657
Average Net Assets for the Period
 (in thousands)                           $ 1,223,556    $ 1,379,145    $ 1,822,801    $ 1,612,514    $ 1,562,521    $ 1,792,532
Ratio of Gross Expenses to
 Average Net Assets**(1)                        0.93%          0.94%          0.89%          0.92%             NA             NA
Ratio of Net Expenses to
 Average Net Assets**(1)                        0.91%          0.92%          0.88%          0.91%          0.96%          0.97%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                      (0.19%)          0.11%        (0.33%)          0.29%          0.27%          1.29%
Portfolio Turnover Rate**                        110%           146%           136%           113%           114%           139%
Average Commission Per Share              $     .0390    $     .0391    $     .0382             NA             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------

<CAPTION>
For a share outstanding during the six
months ended April 30, 1998, (unaudited)
or through each fiscal year                                                   Janus Worldwide Fund
or period ended October 31                       1998           1997           1996           1995           1994           1993
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     40.05    $     34.60    $     27.65    $     27.00    $     24.16    $     18.95
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income/(loss)                    .06          (.08)            .49            .81            .15            .14
  Net gains or (losses) on securities
   (both realized and unrealized)                7.64           7.73           7.79           1.39           3.34           5.29
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 7.70           7.65           8.28           2.20           3.49           5.43
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)        (.20)          (.15)          (.26)          (.54)          (.27)          (.22)
  Distributions (from capital gains)           (2.59)         (2.05)         (1.07)         (1.01)          (.38)             --
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                            (2.79)         (2.20)         (1.33)         (1.55)          (.65)          (.22)
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     44.96    $     40.05    $     34.60    $     27.65    $     27.00    $     24.16
================================================================================================================================
Total Return*                                  20.61%         23.34%         31.00%          8.89%         14.76%         28.79%
================================================================================================================================
Net Assets, End of Period (in thousands)  $14,047,908    $10,358,225    $ 4,467,185    $ 1,804,354    $ 1,587,120    $   754,608
Average Net Assets for the Period
 (in thousands)                           $11,579,877    $ 7,783,669    $ 2,953,495    $ 1,622,142    $ 1,244,194    $   379,259
Ratio of Gross Expenses to
 Average Net Assets**(1)                        0.90%          0.97%          1.02%          1.24%             NA             NA
Ratio of Net Expenses to
 Average Net Assets**(1)                        0.88%          0.95%          1.01%          1.23%          1.12%          1.32%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                        0.42%          0.65%          0.73%          0.99%          0.42%          0.92%
Portfolio Turnover Rate**                         66%            79%            80%           142%           158%           124%
Average Commission Per Share              $     .0434    $     .0561    $     .0311             NA             NA             NA
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>
(1) See "Explanation of the Financial Highlights."
*Total return not annualized for periods of less than one full year
**Annualized for periods of less than one full year
NA - Disclosure not applicable to prior periods

See Notes to Financial Statements.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   53
<PAGE>

<TABLE>
<CAPTION>
                              FINANCIAL HIGHLIGHTS

For a share outstanding during the six                          Janus                                        Janus
months ended April 30, 1998, (unaudited)                    Equity Income                                   Olympus
or through each fiscal year                                     Fund                                         Fund
or period ended October 31                       1998           1997         1996(1)          1998           1997         1996(2)
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>            <C>            <C>            <C>            <C>        
Net Asset Value, Beginning of Period      $     13.98    $     11.29    $     10.00    $     18.41    $     14.86    $     12.00
- --------------------------------------------------------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income                           .01            .09            .07           (.01)           .04            .13
  Net gains or (losses) on securities
   (both realized and unrealized)                2.62           3.11           1.25           3.40           3.64           2.73
- --------------------------------------------------------------------------------------------------------------------------------
Total from Investment Operations                 2.63           3.20           1.32           3.39           3.68           2.86
- --------------------------------------------------------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)        (.02)          (.12)          (.03)          (.04)          (.13)             --
  Distributions (from capital gains)            (.88)          (.39)             --          (.71)             --             --
- --------------------------------------------------------------------------------------------------------------------------------
Total Distributions                             (.90)          (.51)          (.03)          (.75)          (.13)             --
- --------------------------------------------------------------------------------------------------------------------------------
Net Asset Value, End of Period            $     15.71    $     13.98    $     11.29    $     21.05    $     18.41    $     14.86
================================================================================================================================
Total Return*                                  19.90%         29.46%         13.20%         19.35%         24.98%         23.83%
================================================================================================================================
Net Assets, End of Period (in thousands)  $   139,942    $    74,325    $    30,429    $   800,872    $   615,651    $   432,375
Average Net Assets for the Period
 (in thousands)                           $   104,185    $    46,054    $    21,424    $   677,454    $   517,424    $   276,006
Ratio of Gross Expenses to
 Average Net Assets**(4)                        1.22%          1.48%          1.79%          1.00%          1.06%          1.17%
Ratio of Net Expenses to
 Average Net Assets**(4)                        1.19%          1.45%          1.71%          0.97%          1.03%          1.15%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                        0.17%          0.62%          3.09%         (0.16%)         0.26%          1.64%
Portfolio Turnover Rate**                        136%           180%           325%           156%           244%           303%
Average Commission Per Share              $     .0450    $     .0437    $     .0350    $     .0444    $     .0496    $     .0336
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                                       Janus
For a share outstanding during the six                Special
months ended April 30, 1998, (unaudited)            Situations
or through each fiscal year                            Fund 
or period ended October 31                       1998         1997(3)
- --------------------------------------------------------------------------------
Net Asset Value, Beginning of Period      $     14.08    $     10.00
- --------------------------------------------------------------------------------
Income from Investment Operations:
  Net investment income                            --             --
  Net gains or (losses) on securities
   (both realized and unrealized)                3.20           4.08
- --------------------------------------------------------------------------------
Total from Investment Operations                 3.20           4.08
- --------------------------------------------------------------------------------
Less Distributions:
  Dividends (from net investment income)           --             --
  Distributions (from capital gains)             (.66)            --
- --------------------------------------------------------------------------------
Total Distributions                              (.66)            --
- --------------------------------------------------------------------------------
Net Asset Value, End of Period            $     16.62    $     14.08
================================================================================
Total Return*                                  23.75%         40.80%
================================================================================
Net Assets, End of Period (in thousands)  $   919,893    $   333,777
Average Net Assets for the Period
 (in thousands)                           $   563,238    $   168,215
Ratio of Gross Expenses to
 Average Net Assets**(4)                        1.10%          1.20%
Ratio of Net Expenses to
 Average Net Assets**(4)                        1.08%          1.18%
Ratio of Net Investment Income/(Loss)
 to Average Net Assets**                      (0.10%)        (0.08%)
Portfolio Turnover Rate**                         99%           146%
Average Commission Per Share              $     .0353    $     .0417
- --------------------------------------------------------------------------------
(1) Fiscal period June 28, 1996, (inception) to October 31, 1996
(2) Fiscal period December 29, 1995, (inception) to October 31, 1996
(3) Fiscal period December 31, 1996, (inception) to October 31, 1997
(4) See "Explanation of the Financial Highlights."
*Total return not annualized for periods of less than one full year
**Annualized for periods of less than one full year
NA - Disclosure not applicable to prior periods

See Notes to Financial Statements.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   54
<PAGE>

                              FINANCIAL HIGHLIGHTS

An Explanation of the Financial Highlights
     This schedule provides a per-share  breakdown of the components that affect
the funds' NAV for the current and past  reporting  periods.  Not only does this
table provide you with total return, it also reports total distributions,  asset
size, expense ratios and portfolio turnover rate.
     The  first  line in the  table  reflects  the  funds'  NAV per share at the
beginning of the fiscal period.  The next line reports the funds' net investment
income per share,  which  comprises  dividends  and  interest  income  earned on
securities  held by the funds.  Following  is the total of gains,  realized  and
unrealized. Dividends and distributions are then subtracted to arrive at the NAV
per share at the end of the fiscal period.
     Also included in the Financial Highlights are the funds' expense ratios, or
the percentage of net assets that was used to cover  operating  expenses  during
the  period.  Expense  ratios  vary  across  the funds for a number of  reasons,
including the differences in management fees, average  shareholder account size,
the frequency of dividend payments and the extent of foreign investments,  which
entail greater transaction costs.
     The funds' expenses may be reduced through expense reduction  arrangements.
Those arrangements include the use of brokerage  commissions and uninvested cash
balances  earning  interest or balance  credits.  The  Statements  of Operations
reflect the total expenses  before any offset,  the amount of offset and the net
expenses.  The expense ratios listed in the Financial  Highlights  reflect total
expenses both prior to any expense offset and after the offsets.
     Expense  ratios  prior  to  any  expense  offset  are  part  of  disclosure
requirements  imposed  in  1996.  Years  prior  to  1995  do  not  reflect  this
information.
     The next line  reports  the ratio of net  investment  income,  which is the
income  earned  divided by the average net assets of a fund during the reporting
period.  Don't confuse this ratio with a fund's yield. The net investment income
ratio is not a true  measure of a fund's  yield  because  it  doesn't  take into
account the dividends distributed to the fund's investors.
     The next ratio provided in this table is the portfolio turnover rate, which
measures  the amount of buying and selling  activity  in the funds'  portfolios.
Portfolio  turnover is affected by market  conditions,  changes in the size of a
fund,  the  nature of the fund's  investments  and the  investment  style of the
portfolio  manager. A 100% rate implies that an amount equal to the value of the
entire portfolio is turned over in a year; a 50% rate means that an amount equal
to the value of half the  portfolio  is traded in a year;  and a 200% rate would
mean that an amount equal to the value of the portfolio is sold in an average of
six months.
     The last item in the table is the average  commission rate per share.  This
number is derived by taking the  agency  commissions  paid on equity  securities
trades (excluding  Syndicate or IPO and principal trades amounts,  but including
foreign  commissions) and dividing by the number of shares purchased.  This is a
requirement  under SEC  regulations  but is not a meaningful  representation  of
actual costs incurred.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   55
<PAGE>

                       NOTES TO SCHEDULES OF INVESTMENTS

ECU - European Currency Unit

JPY - Japanese Yen

*Non income-producing security

**A portion of this  security  has been  segregated  by the  custodian  to cover
segregation requirements on forward currency contracts.

+Securities  are  registered  pursuant  to Rule  144A  and may be  deemed  to be
restricted for resale.

#The  Investment  Company Act of 1940 defines  affiliates as those  companies in
which a fund holds 5% or more of the outstanding voting  securities.  Below is a
summary of the transactions  with each such affiliate for the period ended April
30, 1998.

<TABLE>
<CAPTION>
                                           Purchases                    Sales             Realized        Dividend      Market Value
                                      Shares       Cost          Shares        Cost      Gain/(Loss)       Income        at 4/30/98
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                 <C>         <C>             <C>        <C>            <C>            <C>          <C>
Janus Fund
Cadence Design Systems, Inc.(1)      4,114,420  $109,525,657           --            --             --            --  $  675,645,626
Chancellor Media Corp.(2)            4,892,520   179,336,807           --            --             --            --     360,644,543
Comcast Corp. - Special Class A     15,532,475   480,848,587           --            --             --   $   682,164     714,792,431
Cytec Industries, Inc.                      --            --      700,000  $ 19,978,225   $ 14,445,553            --     150,602,194
Federal-Mogul Corp.                    225,900     9,878,113       45,000     2,041,512       (55,304)       849,792     229,207,219
Gartner Group, Inc. - Class A        5,565,280   198,739,820           --            --             --            --     184,349,900
Maxim Integrated Products, Inc.(3)   8,295,900   280,809,959           --            --             --            --     454,497,338
Meredith Corp.                       1,041,900    39,757,958           --            --             --       350,526     134,828,650
Parametric Technology Co.(4)         5,357,500   160,547,623           --            --             --            --     676,043,156
Pioneer Natural Resources Co.               --            --    4,727,425   194,407,711   (86,655,644)            --              --
Smith International, Inc.              437,900    26,327,338    3,550,775   221,309,647   (32,392,269)            --              --
Univision Communications,
 Inc. - Class A(5)                   1,457,789    56,314,685           --            --             --            --     126,135,822
UNUM Corp.(6)                               --            --    4,368,271   104,226,822     18,423,990     1,683,714     192,864,621
Wang Laboratories, Inc.                     --            --           --            --             --            --      57,375,000
Wolters Kluwer N.V                   1,275,041   184,125,528        8,700     1,300,237          6,847            --     465,557,953
- ------------------------------------------------------------------------------------------------------------------------------------
                                              $1,726,212,075               $543,264,154  ($86,226,827)   $ 3,566,196  $4,422,544,453
- ------------------------------------------------------------------------------------------------------------------------------------
Janus Enterprise Fund
PriCellular Corp. - Class A                 --            --    1,077,025  $  8,443,876   $  5,381,287            --              --
- ------------------------------------------------------------------------------------------------------------------------------------
Janus Growth and Income Fund
Dime Community Bancorp, Inc.            10,000  $    237,187      810,000  $  9,730,937   $  7,329,044   $    56,920              --
- ------------------------------------------------------------------------------------------------------------------------------------
Janus Mercury Fund
Ocean Rig ASA                               --            --    3,379,096  $  6,649,277  ($ 2,768,313)            --  $   20,710,551
- ------------------------------------------------------------------------------------------------------------------------------------
Janus Olympus Fund
CorporateFamily Solutions, Inc.        100,000  $  2,245,000           --            --             --            --  $   10,528,191
- ------------------------------------------------------------------------------------------------------------------------------------
Janus Overseas Fund
Koninklijke Ahrend Groep N.V.(7)            --            --      169,628  $  5,308,217  ($    59,701)            --  $   25,182,087
Ortivus A.B. - B Shares(8)                  --            --           --            --             --            --      10,657,500
- ------------------------------------------------------------------------------------------------------------------------------------
                                                          --               $  5,308,217  ($    59,701)            --  $   35,839,587
- ------------------------------------------------------------------------------------------------------------------------------------
Janus Special Situations Fund
Bally Total Fitness Holding Corp.      603,100  $ 17,960,153           --            --             --            --  $   43,145,325
ITEQ, Inc.                              39,600       396,792           --            --             --            --      11,696,850
Magnum Hunter Resources, Inc.        1,503,075     8,363,983           --            --             --            --      10,239,698
- ------------------------------------------------------------------------------------------------------------------------------------
                                                $ 26,720,928                         --             --            --  $   65,081,873
- ------------------------------------------------------------------------------------------------------------------------------------
Janus Twenty Fund
UAL Corp.                                   --            --    2,278,065  $111,615,527   $ 83,591,569            --  $  122,198,512
Janus Venture Fund
Chester Bancorp, Inc.                       --            --      103,725  $  1,481,479   $    309,833   $     7,261              --
Community Financial Corp.                   --            --           --            --             --        48,256  $    4,439,575
Engineering Animation, Inc.(9)         240,000  $  9,570,938           --            --             --            --      21,206,250
First Bergen Bancorp                        --            --           --            --             --        19,213       3,650,375
South Street Financial Corp.                --            --           --            --             --        49,000       2,572,500
Southern Electronics Corp.(10)              --            --      217,500     4,211,165    (1,401,259)            --              --
UTI Energy Corp.                            --            --      350,000    13,037,164    (6,302,974)            --              --
- ------------------------------------------------------------------------------------------------------------------------------------
                                                $  9,570,938                $18,729,808   ($7,394,400)   $    123,730 $   31,868,700
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   56
<PAGE>

                       NOTES TO SCHEDULES OF INVESTMENTS
<TABLE>
<CAPTION>
                                           Purchases                    Sales             Realized        Dividend      Market Value
                                      Shares       Cost          Shares        Cost      Gain/(Loss)       Income        at 4/30/98
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                 <C>         <C>             <C>        <C>            <C>            <C>          <C>
Janus Worldwide Fund
Amer Group, Ltd.                            --            --    1,248,452  $ 26,630,189  ($ 2,769,158)            --              --
Assa-Abloy A.B. - Class B                   --            --           --            --             --            --  $  159,705,172
Atos S.A                                    --            --       21,429     1,550,865      1,805,398            --      94,640,559
Cellular Communications International,
  Inc.(11)                             895,133  $ 45,001,279           --            --             --            --      39,385,830
Grupo Casa Autrey S.A. de C.V. (ADR)        --            --       85,112     1,944,009      (547,508)            --      21,038,522
JBA Holdings PLC                            --            --      439,512     3,520,077      1,164,181   $   182,323      20,146,706
NTT Data Corp. 845                  44,406,211           300   11,856,214     2,462,443        172,611   145,224,678
SAS Norge ASA - Class B                     --            --      321,273     3,514,659      1,527,539       639,235      19,984,305
Securitas A.B. - Class B                    --            --           --            --             --            --     133,229,361
Tomra Systems ASA                           --            --      538,608     7,711,619      5,551,346        78,736      47,092,952
- ------------------------------------------------------------------------------------------------------------------------------------
                                                $ 89,407,490               $ 56,727,632    $ 9,194,241   $ 1,072,905  $  680,448,085
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
 (1) Adjusted for 2-for-1 stock split 11/17/97
 (2) Adjusted for 2-for-1 stock split 1/13/98
 (3) Adjusted for 2-for-1 stock split 12/22/97
 (4) Adjusted for 2-for-1 stock split 3/9/98
 (5) Adjusted for 2-for-1 stock split 1/13/98
 (6) Adjusted for 2-for-1 stock split 6/3/97
 (7) Adjusted for 2-for-1 stock split 7/1/97
 (8) Adjusted for 2-for-1 stock split 4/23/98
 (9) Adjusted for 3-for-2 stock split 3/2/98
(10) Name change from Southern Electronics Corp. effective 11/25/97
(11) Adjusted for 3-for-2 stock split 4/15/98

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   57
<PAGE>

                         NOTES TO FINANCIAL STATEMENTS

The following  section  describes the  organization  and significant  accounting
policies of the funds and provides more detailed information about the schedules
and tables that appear  throughout this report.  In addition,  the Notes explain
how the funds  operate and the methods used in  preparing  and  presenting  this
report.

1. Organization and Significant Accounting Policies
     Janus  Investment  Fund (the  "Trust") is registered  under the  Investment
Company  Act  of  1940  (the  "1940  Act")  as a  no-load,  open-end  management
investment company. Twelve series of shares ("Equity Funds" or "Funds") included
in this report invest primarily in equity  securities.  Each Fund is diversified
as  defined  in the 1940 Act,  with the  exception  of Janus  Enterprise,  Janus
Olympus,   Janus  Special   Situations   and  Janus  Twenty  Funds,   which  are
nondiversified.  Organization  costs  were  borne by Janus  Capital  Corporation
("Janus Capital").
     The following policies have been consistently followed by the Funds and are
in conformity with accounting  principles  generally  accepted in the investment
company industry.

Investment Valuation
     Securities  are  valued at the  closing  price for  securities  traded on a
principal  exchange  (U.S.  or  foreign)  and on  the  NASDAQ  National  Market.
Securities traded on over-the-counter markets and listed securities for which no
sales are reported are valued at the latest bid price  obtained from one or more
dealers making a market for such securities or by a pricing service  approved by
the Funds' Trustees. Short-term securities maturing within 60 days are valued at
amortized  cost,  which  approximates  market  value.   Foreign  securities  are
converted  to U.S.  dollars  using  exchange  rates at the close of the New York
Stock Exchange. When market quotations are not readily available, securities are
valued at their fair value as determined in good faith by the Funds' Trustees.

Investment Transactions and Investment Income
     Investment transactions are accounted for as of the date purchased or sold.
Dividend  income is recorded on the  ex-dividend  date.  Certain  dividends from
foreign  securities  will be  recorded  as soon as the Trust is  informed of the
dividend if such  information is obtained  subsequent to the  ex-dividend  date.
Interest  income is recorded on the accrual basis and includes  amortization  of
discounts and premiums.  Gains and losses are determined on the identified  cost
basis, which is the same basis used for federal income tax purposes.

Forward Currency Transactions and Futures Contracts
     The Funds enter into  forward  currency  contracts in order to reduce their
exposure  to  changes  in  foreign  currency  exchange  rates on  their  foreign
portfolio holdings and to lock in the U.S. dollar cost of firm purchase and sale
commitments for securities denominated in foreign currencies. A forward currency
exchange  contract is a commitment  to purchase or sell a foreign  currency at a
future date at a negotiated  rate.  The gain or loss arising from the difference
between  the U.S.  dollar  cost of the  original  contract  and the value of the
foreign  currency in U.S.  dollars upon closing of such  contract is included in
net realized gain or loss from foreign currency transactions.
     Forward currency  contracts held by the Funds are fully  collateralized  by
other securities, which are denoted in the accompanying Schedule of Investments.
Such collateral is in the possession of the Funds' custodian.  The collateral is
evaluated  daily to ensure its market value equals or exceeds the current market
value of the corresponding forward currency contracts.
     Currency gain and loss is also calculated on payables and receivables  that
are  denominated  in  foreign  currencies.  The  payables  and  receivables  are
generally related to security transactions and income.
     Futures  contracts are marked to market daily, and the resultant  variation
margin is recorded as an unrealized gain or loss.  When a contract is closed,  a
realized gain or loss is recorded  equal to the  difference  between the opening
and closing value of the contract. Generally, open forward and futures contracts
are marked to market (i.e., treated as realized and subject to distribution) for
federal income tax purposes at fiscal year-end.
     Foreign-denominated  assets and forward currency contracts may involve more
risks  than  domestic  transactions,  including  currency  risk,  political  and
economic  risk,  regulatory  risk and  market  risk.  Risks may  arise  from the
potential  inability of a counterparty  to meet the terms of a contract and from
unanticipated  movements in the value of foreign currencies relative to the U.S.
dollar.
     The Funds may enter into "futures  contracts"  and "options" on securities,
financial  indexes and foreign  currencies,  forward contracts and interest rate
swaps  and  swap-related  products.  The  Funds  intend  to use such  derivative
instruments  primarily to hedge or protect from adverse  movements in securities
prices,  currency  rates or interest  rates.  The use of futures  contracts  and
options  may  involve  risks  such as the  possibility  of  illiquid  markets or
imperfect  correlation  between the value of the  contracts  and the  underlying
securities, or that the counterparty will fail to perform its obligations.

Estimates
     The  preparation  of financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect  the  reported  amount of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements and the reported  amounts of income and expenses during the reporting
period. Actual results could differ from those estimates.

Dividend Distributions and Expenses
     Dividends  for Janus  Balanced,  Janus  Equity  Income and Janus Growth and
Income Funds are declared and  distributed  quarterly and capital gains (if any)
are distributed annually.  The remaining nine Equity Funds generally declare and
distribute  dividends  and  capital  gains (if any)  annually.  Each Fund  bears
expenses  incurred  specifically  on its  behalf as well as a portion of general
expenses.

Federal Income Taxes
     The Funds  intend to  distribute  to  shareholders  all taxable  investment
income and realized  gains and otherwise  comply with the Internal  Revenue Code
applicable to regulated investment companies.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   58
<PAGE>

                         NOTES TO FINANCIAL STATEMENTS

2. Investment Advisory Agreement and Other Transactions with Affiliates
     The  advisory  agreement  with the Funds spells out the fees that the Funds
must pay for the period ended April 30,  1998.  Each of the Funds was subject to
the following schedule:

                    Average Daily Net                Annual Rate
Fee Schedule        Assets of Fund                Percentage (%)
- --------------------------------------------------------------------------------
Equity Funds        First $300 Million                       .75
                    Next $200 Million                        .70
                    Over $500 Million                        .65
- --------------------------------------------------------------------------------
     Janus Service Corporation  ("Janus Service"),  a wholly owned subsidiary of
Janus  Capital,  receives an annual fee of 0.16% of average net assets per fund,
plus $4.00 per shareholder account (excluding Janus and Janus Venture Funds) for
transfer agent services plus  reimbursement  of certain  out-of-pocket  expenses
(primarily postage and telephone charges).
     Officers  and  certain  trustees  of the  Funds are also  officers  and/ or
directors  of Janus  Capital;  however,  they receive no  compensation  from the
Funds.
     DST Systems,  Inc. (DST), an affiliate of Janus Capital through a degree of
common ownership, provides fund accounting and shareholder accounting systems to
the Funds. DST Securities, Inc., a wholly owned subsidiary of DST, is designated
as  an  introductory  broker  on  certain  portfolio   transactions.   Brokerage
commissions paid to DST Securities, Inc. serve to reduce transfer agent fees and
expenses.  Brokerage commissions paid, fees reduced and the net fees paid to DST
for the year or period ended April 30, 1998, are noted below.

                                DST Securities, Inc     Fund        
                                    Commissions        Expense      
                                        Paid*         Reduction*        DST Fees
- --------------------------------------------------------------------------------
Janus Fund                            $363,903         $272,927         $888,175
- --------------------------------------------------------------------------------
Janus Balanced Fund                      6,123            4,592           43,573
- --------------------------------------------------------------------------------
Janus Enterprise Fund                    2,227            1,670          106,936
- --------------------------------------------------------------------------------
Janus Equity Income Fund                   910              682           18,182
- --------------------------------------------------------------------------------
Janus Growth and Income Fund            49,200           36,900          172,992
- --------------------------------------------------------------------------------
Janus Mercury Fund                      13,734           10,300          269,012
- --------------------------------------------------------------------------------
Janus Olympus Fund                      11,718            8,788           74,654
- --------------------------------------------------------------------------------
Janus Overseas Fund                      4,968            3,726          189,334
- --------------------------------------------------------------------------------
Janus Special Situations Fund            5,100            3,825           61,581
- --------------------------------------------------------------------------------
Janus Twenty Fund                       22,000           16,500          513,381
- --------------------------------------------------------------------------------
Janus Venture Fund                      10,288            7,716          143,998
- --------------------------------------------------------------------------------
Janus Worldwide Fund                    19,718           14,788          549,323
- --------------------------------------------------------------------------------
                                                                 
*The difference  between  commissions paid to DST Securities,  Inc. and expenses
reduced constituted commissions paid to an unaffiliated clearing broker.

3. Federal Income Tax
     The Funds  have  elected  to treat  gains and  losses on  forward  currency
contracts as capital gains and losses.  Other foreign  currency gains and losses
on debt  instruments  are  treated as  ordinary  income for  federal  income tax
purposes pursuant to Section 988 of the Internal Revenue Code.
     There were no net  capital  loss  carryovers  as of October 31,  1997.  The
aggregate cost of investments and the composition of unrealized appreciation and
depreciation  of  investment  securities  for federal  income tax purposes as of
April 30, 1998, are as follows:

<TABLE>
<CAPTION>
                                                           at April 30, 1998
                                 ---------------------------------------------------------------------
                                                                                             Net
                                    Federal Tax       Unrealized        Unrealized      Appreciation/
                                       Cost          Appreciation     (Depreciation)    (Depreciation)
- ------------------------------------------------------------------------------------------------------
<S>                              <C>                <C>               <C>               <C>           
Janus Fund                       $15,462,416,546    $6,558,252,128    ($119,063,458)    $6,439,188,670
- ------------------------------------------------------------------------------------------------------
Janus Balanced Fund                  434,945,437        82,044,589       (2,437,334)        79,607,255
- ------------------------------------------------------------------------------------------------------
Janus Enterprise Fund                434,651,745       162,000,729       (6,043,935)       155,956,794
- ------------------------------------------------------------------------------------------------------
Janus Equity Income Fund             114,523,454        24,703,328       (1,316,618)        23,386,710
- ------------------------------------------------------------------------------------------------------
Janus Growth and Income Fund       2,061,685,986       663,713,111      (17,277,410)       646,435,701
- ------------------------------------------------------------------------------------------------------
Janus Mercury Fund                 1,636,915,328       561,778,096      (21,177,467)       540,600,629
- ------------------------------------------------------------------------------------------------------
Janus Olympus Fund                   563,063,308       219,359,578       (7,576,383)       211,783,195
- ------------------------------------------------------------------------------------------------------
Janus Overseas Fund                3,404,536,884     1,001,435,198      (86,403,380)       915,031,818
- ------------------------------------------------------------------------------------------------------
Janus Special Situations Fund        765,201,825       152,336,863       (7,421,270)       144,915,593
- ------------------------------------------------------------------------------------------------------
Janus Twenty Fund                  5,434,618,092     2,630,203,153      (57,988,246)     2,572,214,907
- ------------------------------------------------------------------------------------------------------
Janus Venture Fund                   859,200,174       382,298,773      (12,910,131)       369,388,642
- ------------------------------------------------------------------------------------------------------
Janus Worldwide Fund              10,419,954,867     3,665,177,281     (189,130,693)     3,476,046,588
- ------------------------------------------------------------------------------------------------------
</TABLE>

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   59
<PAGE>

             This space available for your notes and computations.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   60
<PAGE>

             This space available for your notes and computations.

          JANUS EQUITY FUNDS   APRIL 30, 1998   SEMIANNUAL REPORT   61
<PAGE>

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1-800-525-3713

Funds distributed by Janus Distributors, Inc. Member NASD.

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