BARON ASSET FUND
497, 2000-02-03
Previous: PIMCO FUNDS, 497, 2000-02-03
Next: PRUDENTIAL UNIT TRUSTS PRUDENTIAL EQUITY TRUST SHARES 1, N-8B-2/A, 2000-02-03



P  R  O  S  P  E  C  T  U  S



                               BARON FUNDS


                                              J A N U A R Y  1 7, 2 0 0 0


                                              BARON ASSET FUND

                                              BARON GROWTH FUND

                                              BARON SMALL CAP FUND

                                              BARON iOPPORTUNITY FUND



                     [REGISTERED CASTLE LOGO]
<PAGE>
[PHOTOS]

<PAGE>

WELCOME TO
BARON FUNDS:

BARON: A LONG-TERM INVESTOR IN SMALL AND MID-SIZED, GROWTH BUSINESSES
 ...BUSINESSES OPERATED BY TALENTED, HARDWORKING AND ETHICAL ENTREPRENEURS WITH
BIG DREAMS...

When I founded Baron Capital  nearly  eighteen  years ago in June 1982, I did so
based upon a few relatively simple and straightforward ideas.

I had been a securities  analyst  since 1970 and managed  money for others since
1975. I achieved early investment success by purchasing McDonalds, Disney, Hyatt
Hotels,  Federal  Express and  Mattel...when  they were all a lot  smaller  than
today. These successes  reinforced my belief that small and mid sized businesses
offer greater  opportunities for growth than larger companies.  Small and medium
sized businesses that can become  BIG...businesses  that have the opportunity to
double in size in three to five  years...and then double again in the next three
to five  years.  That's  what we're  looking  for...doubles,  doubles  again and
doubles  then  again...if  we can  purchase  and continue to own shares that are
attractively priced, of course.

I  also  believed  talented,  hardworking  and  honest  business  managers  were
absolutely essential for a business to be successful.  In certain instances,  we
have placed even more reliance on management than on the business itself. George
Blumenthal  and his partner  Barclay  Knapp with their NTL,  Corecomm,  Cellular
Communications  of  Puerto  Rico,  Cellular  Communications   International  and
Cellular Communications of Ohio businesses are prime examples. These investments
all have been home runs for us and  there  was  little to  commend  them when we
initially invested except George and Barclay and their dreams.

Finally, Baron determined to be a LONG TERM INVESTOR in businesses...not a short
term trader of stocks.  We think of  ourselves  as part owners of publicly  held
businesses...very  profitable  businesses  with  important  barriers  to prevent
others from usurping our corporate opportunities.  As long term investors,  when
our small and mid sized businesses are successful,  when they do become BIG, and
they're still attractively priced, we'll still own them and participate in their
success. Companies like Charles Schwab, Robert Half, NTL, Hispanic Broadcasting,
DeVry, Flextronics,  American Tower and others have increased in value many fold
since our initial  purchases  several years ago. All our investments,  including
those just  mentioned,  have the  potential to at least  double  during the next
three or four years.

Baron Asset Fund, our largest fund, has low portfolio  turnover...on average 16%
per year over the last four  years...meaning we hold investments on average more
than six  years.  This  allows  us to learn a lot more  than  others  about  the
businesses and their  prospects in which we are PART OWNERS.  Baron Funds should
be  advantaged by the special  insights its analysts  glean over the years about
these  businesses.  The average  small cap mutual fund turned over its portfolio
100%  last  year,  i.e.,  by the end of the year it  didn't  own any  shares  of
business that it owned at start of year.


                                                    NOT A PART OF THE PROSPECTUS
<PAGE>
In fact, a few trading  oriented,  very strong performing mutual funds last year
turned over their  portfolios  as much as 600%!  This means they held an average
stock less than two  months...a  good  strategy in last year's IPO and  momentum
driven  stock  market...but,  not always a successful  strategy  during the past
thirty years.

BARON: RESEARCH. RESEARCH. RESEARCH.

Baron  relies  upon our own "kick the  tires"  investment  research.  We are not
dependent   upon   investment   banking   supported,   brokerage  firm  research
recommending  stocks of their fee paying banking  clients.  We are certainly not
reliant upon "hot tips,"  reports on Internet  message boards and chat rooms and
broadcast and news media  recommendations or reports of businesses  exceeding or
"missing"  earnings  estimates.  Our  analysts  visit the  companies in which we
invest  regularly (and, their  competitors as well, of course),  develop our own
opinions on businesses' executives abilities and strategies,  and not just model
the  financial  prospects  of  businesses,  but,  peer review our  opinions  and
research  with our fellow Baron  analysts and  portfolio  managers  (not an easy
group to  convince).  "Investigate  before you invest"  was the well  advertised
slogan of the New York Stock  Exchange in the 1950s when I became  interested in
the stock market in high school.  This remains our credo.  And in this  Internet
democratized world of vast information  networks, we believe that INFORMATION IS
NOT  KNOWLEDGE and our research and business  analysis are more  important...and
relevant...than ever.

Our  intense  research  efforts  have  provided  us with  enough  knowledge  and
information  to allow  us to  purchase  significant  interests  in a  number  of
publicly traded  businesses...at  attractive  prices.  Vail Resorts,  Sotheby's,
Charles  Schwab,  Flextronics,   Hispanic  Broadcasting,  Mirage  Resorts,  Saga
Communications,  NTL, American Tower, Corecomm,  Polo Ralph Lauren, Dollar Tree,
Choice Hotels, DeVry, Apollo, Robert Half and Sun International Hotels are among
these  investments.  We are likely to remain  investors in these  businesses and
several  others,  as well,  for  years  to come.  The  common  element  in these
investments?  All these  businesses are likely to be a lot larger and a lot more
profitable in a few years than they are  today...and a lot larger and a lot more
profitable  in a few  more  years  after  that.  This  is in  contrast  to  many
businesses  today whose stocks are  currently  doing well but,  that are not yet
profitable and must rely upon capital markets financing,  not retained earnings,
to permit them not just to grow but, to remain viable.

BARON: NO DIRECT TECHNOLOGY INVESTMENTS. SO...WHY BARON I OPPORTUNITY FUND?
AND, WHY NOW?

Baron has not  previously  invested  in  software,  computer  hardware  and chip
businesses.  This is because, due to rapid advances in technology,  success with
current  technology  is  generally  not a  good  predictor  of  future  success.
Regardless,  BARON EMBRACES CHANGE and believes that technology will continue to
become  increasingly  more  important  in  our  economy  and  lives.  Baron  has
substantial  investments in businesses  that use technology to achieve long term
competitive advantages...i.e. Charles Schwab; businesses that provide technology
training and education...i.e.


NOT A PART OF THE PROSPECTUS
<PAGE>

DeVry  and  Apollo;  and  a  business  that  manufactures  for  others  advanced
technology  products  but is  indifferent  to the success or failure of specific
products...i.e.   Flextronics.   Baron  also  has  substantial   investments  in
communications businesses, i.e. cable television,  cellular telephone, satellite
communications  and telephone.  We believe that strong demand by both businesses
and consumers for wired and wireless data services  (Internet)  and  significant
barriers to competition,  i.e.  exclusive  government  licenses and huge capital
requirements,  make these successful  businesses less vulnerable to competition.
Our significant  media  investments are benefiting from very strong  advertising
markets driven by Internet business demand.

WE THINK THERE ARE VERY PROFITABLE INTERNET BUSINESS OPPORTUNITIES WITH
SUSTAINABLE COMPETITIVE ADVANTAGES THAT OFFER GOOD LONG TERM INVESTMENT
OPPORTUNITY...AND THAT CAN BE PURCHASED AT ATTRACTIVE PRICES RELATIVE TO THESE
OPPORTUNITIES.

During the last two years we have studied  numerous  Internet  businesses.  Many
Internet  stock  market  valuations  are not easily  justified.  But,  there are
attractive,  well  priced  Internet  opportunities,   both  subtle  and  readily
apparent,  that may be discovered by "kick the tires" research. And, researching
Internet  businesses  isn't a lot different from the due diligence we perform on
"bricks  and  mortar"  businesses  to find  the few  businesses  that  meet  our
investment criteria.  The potential rewards for a successful Internet investment
are, of course, present.

OUR RESEARCH EFFORTS FOR BARON I OPPORTUNITY FUND ARE EXPECTED TO ENHANCE OUR
KNOWLEDGE BASE AND BENEFIT OUR OTHER FUNDS.

We have to be convinced  that the "bricks and mortar"  businesses in which Baron
Funds already has large  investments will not become the functional  equivalents
of early 1900's horse and carriage buggywhip companies. We want to be certain we
don't  invest in a chain of video  stores and later  discover  that films can be
delivered to your home by satellite,  cable or the  Internet;  or in a newspaper
reliant upon classified and help wanted advertising  revenues and later discover
that online auctions and job boards are challenging those revenue streams; or in
a "bricks and mortar" stock brokerage firm staffed with thousands of brokers and
later  discover  that business  challenged by Charles  Schwab using the web as a
backbone  to  provide  full  service  brokerage  to its baby  boomer  customers.
Retailers,   distribution  businesses,  regional  banks,  mailing  services  and
suppliers to manufacturing  companies are just some of the businesses threatened
by the web. The web is changing everything.

OUR RESEARCH ON INTERNET AND COMMUNICATIONS BUSINESSES SHOULD ALLOW BARON FUNDS
TO OFFER OUR YOUNG ANALYSTS MORE EXCITING AND CHALLENGING CAREER OPPORTUNITIES.

It is challenging for us (and, so far, it's been one of our great  successes) to
identify,  attract,  train and retain bright,  young,  hardworking  analysts and
portfolio managers.  This is especially true when we're competing for talent not
just with  other  investment  firms,  but also  with  rapidly  growing  Internet
companies.  Recent  conversations  and  visits in the  course of our  investment
research with recruiters  Monster.com,  Robert Half,  Heidrick and Struggles and
others, only serve to reinforce this point.


                                                    NOT A PART OF THE PROSPECTUS

<PAGE>
"What top college student wants to interview at Proctor and Gamble for a role in
their  marketing  department,  when he or she could try to obtain a position and
seek their fortune with a dot.com  business?" we were often told.  Young people,
the  future  of  all  businesses,  want  to  be  involved  in  forward  looking,
interesting,  and  potentially  lucrative  businesses.  Our  Internet  work will
continue to make Baron a most  desirable and preferred  place of employment  for
young analysts.

I am grateful for the strong  contributions  my fellow Baron  Capital  employees
have made to our firm's  investment  successes.  I am confident  that the coming
years offer even greater promise and potential than the recent past.

THANK YOU FOR INVESTING IN BARON FUNDS.

Thank you for joining us as fellow  shareholders in Baron Funds. As mutual funds
have  proliferated in recent years, i.e. there are now more funds than there are
stocks,  the decisions  you must make on behalf of yourself and your family,  we
are certain,  has become ever more difficult.  This is especially the case since
the  very  strong  market  advance  during  the  past  two  years  has  been  so
concentrated in technology and Internet  stocks,  and highly regarded  financial
advisers and newsletters often give you conflicting advice.

We  hope  our  detailed  quarterly   shareholder   letters,   annual  investment
conferences,   interviews  with  the  press  and  quarterly   financial  adviser
conference calls have allowed you to determine if Baron Funds remains a suitable
investment for you and your family.  If you have any further  questions,  please
feel free to call or email us at [email protected].

Again, we want to thank you, our fellow shareholders, for your continued strong
support.


Sincerely,

/s/Ronald Baron
- ---------------
   Ronald Baron
   Chairman and Chief Executive Officer
   Baron Capital, Inc.
   January 17, 2000


NOT A PART OF THE PROSPECTUS

<PAGE>

Percentage of each stock owned by the Funds combined (Baron Asset Fund, Baron
Growth Fund and Baron Small Cap Fund) as of 12/31/99

American Tower Corp.           3.2%        Heidrick and Struggles         4.8%
Apollo Group, Inc.             7.4%        Hispanic Broadcasting Corp.    4.0%
Budget Group                   6.6%        Mirage Resorts                 4.4%
Charles Schwab Corp.           3.0%        NTL, Inc.                      3.5%
Choice Hotels Intl., Inc.     28.3%        Polo Ralph Lauren             10.3%
Corecomm                      12.8%        Robert Half Intl.              8.1%
DeVry, Inc.                    7.9%        Saga Communications           24.9%
Dollar Tree                    5.8%        Sotheby's Holdings, Inc.      36.0%
Education Management          13.4%        Sun International Hotels      13.5%
Flextronics International,                 Vail Resorts                  29.1%
 Inc.                          6.0%        XM Satellite                   2.5%
Four Seasons Hotel, Inc.       4.4%

Percentage of Total Assets for the Top Ten Industries of the Funds combined
(Baron Asset Fund, Baron Growth Fund and Baron Small Cap Fund) as of 12/31/99

Communications                16.6%        Hotels & Lodging               4.5%
Retail Stores & Restaurants   15.0%        Business Services              6.7%
Media & Entertainment         13.5%        Education                      4.4%
Financial Services            12.7%        Manufacturing                  3.5%
Amusement & Recreation                     Utility Services               2.7%
 Services                      7.7%

Annual Portfolio Turnover Rate as of 12/31/99

Baron Asset Fund              13%
Baron Growth Fund             42%
Baron Small Cap Fund          38%


According to Morningstar,  as of November 30, 1999 the average  turnover rate of
the 1,775 small and mid cap mutual funds tracked is 103%. Of the 1,775 small and
mid cap mutual funds, 8 have a portfolio turnover rate of 600% or greater.


                                                    NOT A PART OF THE PROSPECTUS
<PAGE>

                        [PAGE INTENTIONALLY LEFT BLANK]

<PAGE>
                                   BARON FUNDS

                             BARON iOPPORTUNITY FUND

SUPPLEMENT TO JANUARY 17, 2000 PROSPECTUS

The distributor of BARON  iOPPORTUNITY  FUND (the "Fund"),  Baron Capital,  Inc.
("Baron Capital"), is soliciting subscriptions for Fund shares during an initial
offering period  currently  scheduled from January 18, 2000 to February 29, 2000
(the "Subscription Period"). Orders received during the Subscription Period will
be accepted by the Fund at the Fund's initial offering price of $10.00 per share
on  February  29,  2000.  Payments   accompanying  orders  received  during  the
Subscription  Period  will be held by the Fund's  transfer  agent  uncashed  and
uninvested until that time.

Charles Schwab & Co., Inc.  ("Schwab") is also soliciting  subscriptions of Fund
shares during the Subscription  Period,  pursuant to a Selected Dealer Agreement
with Baron Capital.  The $10.00 per share purchase price for Fund shares ordered
through  Schwab  will be paid  from a Schwab  customer's  brokerage  account  on
February  29,  2000.  For services  rendered by Schwab  during the  Subscription
Period, Baron Capital will pay compensation to Schwab that is in addition to the
normal fees  received  by Schwab  regarding  Fund  shares that are sold  through
Schwab upon the conclusion of and after the Subscription  Period.  All fees paid
to Schwab for subscription services will be paid by Baron Capital out of its own
resources or those of its  affiliates and will have no effect on the Fund's fees
or expenses. After the Subscription Period, Schwab will receive remuneration for
recordkeeping and shareholder servicing of Fund shares purchased through Schwab.

Shares of the Fund  will not be  available  to the  public  prior to the  Fund's
commencement of operations except through these subscription offers.

                    This Supplement is Dated January 17, 2000

                              ---------------------



<PAGE>

BARON  ASSET FUND

BARON GROWTH FUND

BARON SMALL CAP FUND

BARON iOPPORTUNITY FUND



767 Fifth Avenue
New York, New York 10153
1-800-99-BARON
212-583-2100













This prospectus  contains  essential  information for anyone  investing in these
funds. Please read it carefully and keep it for reference.



As with all mutual  funds,  the fact that these shares are  registered  with the
Securities  and  Exchange  Commission  does not mean  that  the  Commission  has
approved or disapproved  them or determined  whether this prospectus is accurate
or complete. Anyone who tells you otherwise is committing a crime.




January 17, 2000

                                                                  PROSPECTUS o 1

<PAGE>

TABLE  OF  CONTENTS

______________________________________________________________________________

INFORMATION         Investment Goals, Strategies and Risks    3
ABOUT THE
FUNDS               Past Performance                          6

                    Fund Expenses                             8

                    Financial Highlights                     10

                    Other Investment Strategies              13

                    Management                               15
______________________________________________________________________________

INFORMATION         How Your Shares are Priced               17
ABOUT YOUR
INVESTMENT          How to Purchase Shares                   17

                    How to Redeem Shares                     19

                    Distributions and Taxes                  21

                    General Information                      22
______________________________________________________________________________

MORE
INFORMATION         Back Cover









2 o POSPECTUS
<PAGE>
INFORMATION ABOUT THE FUNDS


INVESTMENT GOALS AND STRATEGIES

WHAT ARE THE INVESTMENT GOALS OF THE FUNDS?

BARON  ASSET FUND        capital appreciation through investments in securities
                         of small and medium sized companies with undervalued
                         assets or favorable growth prospects

BARON GROWTH  FUND       capital appreciation

BARON SMALL CAP FUND     capital appreciation through investments primarily in
                         securities of small companies

BARON iOPPORTUNITY FUND  capital appreciation


WHAT ARE THE MAIN INVESTMENT STRATEGIES OF THE FUNDS?

In making  investment  decisions for the Funds the Adviser seeks securities that
the Adviser believes have:

1.   favorable price to VALUE  characteristics based on the Adviser's assessment
     of their prospects for future GROWTH and profitability.
2.   the potential to increase in value at least 50% over two subsequent years.

Investment decisions are made by the Funds' investment adviser, BAMCO, Inc. (the
"Adviser").  The  Adviser  seeks  investments  that are  supported  by long term
demographic, economic and societal "mega-trends." Among the industries that will
benefit  from  long  lasting  "mega-trends"  are  education,  due  to  increased
knowledge requirements in an information  based-economy;  healthcare, due to the
aging  of  America;   products  and  services  for  the  large  baby-boomer  and
echo-boomer (their children) segments of our population;  media and services for
the rapidly growing U.S. Hispanic population;  communication businesses,  due to
rapidly  increasing demand for bandwidth;  and businesses able to establish long
term  competitive  advantage  through  the  use of  the  Internet.  The  Adviser
thoroughly  researches  the companies in which the Funds  invest.  The Adviser's
research  process  includes  visits and  interviews  by the Adviser with company
managements and their major competitors.  The Adviser looks for the ability of a
company to grow its  business  substantially  within a four to five year period;
special business niches that create unusually favorable business  opportunities;
sustainable  barriers to competition;  and strong management  capabilities.  The
Adviser seeks to purchase  these  companies at what it perceives are  attractive
prices  relative to  projected  future cash flows and

                                                                  PROSPECTUS o 3
<PAGE>
asset values, before the companies' long-term business prospects are appreciated
by other  investors.  There is no  assurance  that the  Funds  will  meet  their
investment  goals.  The Funds may take large positions in the companies in which
the Adviser has the greatest conviction. The Funds have a long term outlook. The
Funds are designed for long-term investors, not for investors who intend to sell
after a short period of time.

BARON  ASSET FUND invests primarily in common stocks of small and medium sized
companies selected for their capital appreciation potential.

BARON  GROWTH  FUND  invests  primarily  in common  stocks of smaller  companies
selected for their capital appreciation potential.

BARON SMALL CAP FUND  invests  primarily  in common  stocks  selected  for their
capital  appreciation  potential.  At least 65% of the Fund's  total  assets are
invested in the securities of smaller  companies based on the market size of the
investment at the time of purchase.

BARON  iOPPORTUNITY  FUND invests  primarily in common stocks selected for their
capital appreciation potential. The Fund seeks investments in companies that the
Adviser believes have Internet-related growth opportunities.  "Internet-related"
will include opportunities  directly related to the web as well as opportunities
that result from the rapidly changing information  technology  environment.  The
Fund will  focus on new media,  interactive  communication,  electronic  content
delivery,  networking  and  e-commerce.  Investments  will also include  access,
infrastructure, products and services for all of the above. The Adviser seeks to
invest in both new  emerging  companies  and more  mature  "bricks  and  mortar"
businesses   which  the  Adviser   believes   have   significant,   sustainable,
Internet-related  growth opportunities.  Internet-related  investments,  as with
investments  for the other Baron Funds,  will be purchased at prices the Adviser
deems attractive based on the Adviser's projected cash flows and/or customer and
asset  valuations  within a reasonable  time period.  At least 65% of the Fund's
total assets are invested in securities of companies that are Internet-related.


WHAT KINDS OF SECURITIES DO THE FUNDS BUY?

The  Funds  invest  primarily  in  common  stocks  but may also  invest in other
equity-type  securities  such as  convertible  bonds and  debentures,  preferred
stocks,  warrants and convertible preferred stocks.  Securities are selected for
their  capital   appreciation   potential,   and  investment  income  is  not  a
consideration.

BARON ASSET FUND  invests  primarily in small and medium  sized  companies  with
market capitalizations of approximately $500 million to $5 billion. BARON GROWTH
FUND and BARON SMALL CAP FUND invest  primarily  in small sized  companies  with
market  values  under $1.5  billion.  These Funds will not sell  positions  just
because their market values have increased. The Funds will add to

4 o PROSPECTUS
<PAGE>
positions  in a company  even  though its market  capitalization  has  increased
through  appreciation  beyond the limits stated, if, in the Adviser's  judgment,
the company is still an attractive  investment.  BARON iOPPORTUNITY FUND invests
in companies of all sizes.


WHAT ARE THE PRINCIPAL RISKS OF INVESTING IN THE FUNDS?

GENERAL STOCK MARKET RISK The Funds'  principal  risks are those of investing in
the stock  market.  The value of your  investment in a Fund will increase as the
stock  market  prices  of the  securities  owned by the Fund  increase  and will
decrease as the Fund's investments  decrease in market value.  Equity securities
fluctuate in value, often based on factors unrelated to the value of the issuer,
such as  political,  economic or general  market  conditions.  Because the stock
values  fluctuate,  when you sell your  investment  you may receive more or less
money than you originally invested.

SMALL AND MEDIUM SIZED  COMPANIES The Adviser  believes  there is more potential
for capital  appreciation in smaller  companies but there also may be more risk.
Securities of smaller  companies may not be well known to most investors and the
securities may be thinly  traded.  Smaller  company  securities may fluctuate in
price more widely than the stock market generally and they may be more difficult
to sell  during  market  downturns.  There is more  reliance  on the skills of a
company's  management and on their continued  tenure.  This investment  approach
requires a long-term  outlook and may require  shareholders  to assume more risk
and to have more  patience  than  investing in the  securities  of larger,  more
established companies.

LARGE POSITIONS Even though the Funds are  diversified,  the Funds may establish
significant  positions  in  companies  in which  the  Adviser  has the  greatest
conviction.  If the  stock  price  of one or  more  of  those  companies  should
decrease,  it would have a big impact on the Fund's net asset value.  The Fund's
returns may be more volatile than those of a less concentrated portfolio.

LONG TERM OUTLOOK AND PROJECTIONS The Funds are designed for long-term investors
who are willing to hold  investments for a substantial  period of time. The cash
flows  and  valuations  that  the  Adviser  projects  for a  company  may not be
achieved, which would negatively impact the stock market price of that company.

INTERNET Internet-related  companies and companies propelled by new technologies
may  present  the  risk of rapid  change  and  product  obsolescence  and  their
successes may be difficult to predict for the long term.  Some  Internet-related
companies may be newly formed and have limited operating history and experience.
Internet-related  companies  may  also  be  adversely  affected  by  changes  in
governmental  policies,   competitive   pressures,   and  changing  demand.  The
securities of these  companies may also experience  significant  price movements
caused by  disproportionate  investor  optimism or  pessimism  with little or no
basis in the company's fundamentals or economic conditions.

                                                                  PROSPECTUS o 5
<PAGE>
PAST PERFORMANCE

The  information  below  shows the  Funds'  annual  returns  and their long term
performance. The information provides some indications of the risks of investing
in the Funds.  The bar  charts  show you how the  performance  for each Fund has
varied from year to year. The tables compare each Fund's  performance  over time
to that of the Russell  2000,  a widely  recognized  unmanaged  index of smaller
companies.  How the  Funds  have  performed  in the past is not  necessarily  an
indication of how they will perform in the future.  The annual  report  contains
additional  performance  information  which is available  upon  request  without
charge by writing or calling the Funds at the address and  telephone  number set
forth on the back of this Prospectus.


BARON  ASSET FUND

Annual returns for periods ended 12/31 of each year              [bar chart]
- ---------------------------------------------------

25.0%  -18.5%  34.0%  13.9%   23.5%    7.4%  35.3%   22.0%   33.9%  4.3%   16.3%
1989    1990   1991   1992    1993     1994  1995    1996    1997   1998   1999

Best Quarter:    4thQ 1999:    26.6%
Worst Quarter:   3rdQ 1990:   -24.0%

Average annual total return for periods ended 12/31/99
- -------------------------------------------------------

                   1 year    5 years   10years   since inception (6.12.87)
BARON  ASSET FUND   16.3%     21.8%     16.0%     17.6%
Russell 2000       21.3%     16.7%     13.4%     11.2%


6 o PROSPECTUS

<PAGE>
BARON GROWTH FUND

Annual returns for periods ended 12/31 of each year              [bar chart]
- ---------------------------------------------------

                                      52.5%     27.7%     31.1%     0.1%   44.7%
                                      1995      1996      1997      1998   1999

Best Quarter:   4thQ 1999:     23.9%
Worst Quarter:  3rdQ 1998:    -22.1%


Average annual total returns for periods ended 12/31/99
- -------------------------------------------------------

                         1 year    5 years    since inception (1.3.95)
BARON GROWTH FUND        44.7%     29.9%      29.9%
Russell 2000             21.3%     17.0%      17.0%




BARON SMALL CAP FUND

Annual returns for periods ended 12/31 of each year              [bar chart]
- ---------------------------------------------------

                                                                    2.2%   70.8%
                                                                    1998   1999

Best Quarter:  4thQ 1999:    34.6%
Worst Quarter: 3rdQ 1998:   -28.1%


Average annual total returns for periods ended 12/31/99
- -------------------------------------------------------

                                  1 year    since inception (10/1/97)
Baron Small Cap Fund              70.8%     29.9%
Russell 2000                      21.3%      6.0%

There  is no  performance  information  for  Baron  iOpportunity  Fund  which is
scheduled to begin operations on February 29, 2000.

                                                                  PROSPECTUS o 7

<PAGE>
FUND EXPENSES

The table below  describes  the fees and expenses  that you would pay if you buy
and hold shares of the Funds.

Annual Fund Operating Expenses (Expenses that are deducted from a Fund's assets)

                    Management  Distribution   Other Expenses     Total Annual
                    Fee         (12b-1) Fee                       Fund Operating
                                                                  Expenses
BARON  ASSET FUND    1.0%        0.25%          0.06%              1.31%

Baron Growth        1.0%        0.25%          0.15%              1.40%
Fund

Baron Small Cap     1.0%        0.25%          0.09%              1.34%
Fund

Baron iOpportunity  1.0%        0.25%          0.25%**            1.50%**
Fund

** "Other Expenses" are based on the estimated expenses that the Fund expects to
incur in its  initial  fiscal  year.  The Adviser  has  contractually  agreed to
reimburse certain expenses of the Fund so that its total operating  expenses are
limited to 1.5% of average net assets.  The advisory  contract is for an initial
period of two years.

Baron iOpportunity Fund imposes a short-term trading fee of 1% on redemptions of
shares held for less than 180 days.

8 o PROSPECTUS

<PAGE>
EXAMPLE

This  example is intended to help you compare the cost of investing in the Funds
with the cost of investing in other mutual funds.  The example  assumes that you
invest $10,000 in the Fund for the time periods indicated and then redeem all of
your shares at the end of those  periods.  The example  also  assumes  that your
investment  has a 5% return  each year and that the  Funds'  operating  expenses
remain the same.  Although  your actual  costs may be higher or lower,  based on
these assumptions your costs would be:

================================================================================
YEAR                           1          3          5           10
================================================================================
BARON  ASSET FUND            $133       $415       $718       $1,579
- --------------------------------------------------------------------------------
BARON GROWTH FUND            $143       $443       $766       $1,680
- --------------------------------------------------------------------------------
BARON SMALL CAP FUND         $136       $425       $734       $1,613
- --------------------------------------------------------------------------------
BARON iOPPORTUNITY FUND*     $153       $474       N/A         N/A
================================================================================

* Your estimated costs for Baron iOpportunity Fund for the one year period would
be $153 under the reimbursement  arrangement described in the footnote above and
for the three year period  would be $474.

There are additional charges if you have retirement accounts and wire transfers.
You also may purchase and redeem your shares  through  broker-dealers  or others
who may charge a commission or other  transaction fee for their  services.  (See
"How to Purchase Shares" and "How to Redeem Shares")

The 12b-1 fee is paid to Baron Capital,  Inc. for shareholder  and  distribution
services.  Because  the fees are paid out of the  Funds'  assets  on an  ongoing
basis,  over time it will increase the cost of your  investment and may cost you
more than paying other types of sales charges.

                                                                  PROSPECTUS o 9

<PAGE>

FINANCIAL HIGHLIGHTS

The financial  highlights  table is intended to help you  understand  the Funds'
financial  performance  for the  fiscal  years  indicated.  Certain  information
reflects financial results for a single fund share. The "total return" shows how
much your investment in the Fund would have increased (or decreased) during each
period,  assuming you had  reinvested  all  dividends and  distributions.  These
financial highlights have been audited by PricewaterhouseCoopers LLP, the Funds'
independent   accountants,   whose  report,  along  with  the  Funds'  financial
statements,  is included in the annual report. There are no financial highlights
for Baron iOpportunity Fund.


BARON  ASSET FUND

Year Ended September 30
<TABLE>
<CAPTION>
                                        1999       1998     1997     1996     1995
<S>                                    <C>        <C>      <C>      <C>      <C>
Net Asset Value, Beginning of Year      $39.96    $47.43   $35.50   $29.30   $22.82
- -----------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS
Net Investment Income (Loss)             (0.30)     0.05    (0.14)   (0.06)   (0.09)
Net Realized and Unrealized Gains
   (Losses) on Investments               11.95     (7.52)   12.11     6.29     7.23
- ------------------------------------------------------------------------------------
Total from Investment Operations         11.65     (7.47)   11.97     6.23     7.14
- ------------------------------------------------------------------------------------
LESS DISTRIBUTIONS
Dividends from Net Investment
   Income                                (0.04)     0.00     0.00     0.00     0.00
Distributions from Net Realized
   Gains                                  0.00      0.00    (0.04)   (0.03)   (0.66)
- ------------------------------------------------------------------------------------
Total Distributions                      (0.04)     0.00    (0.04)   (0.03)   (0.66)
- ------------------------------------------------------------------------------------
Net Asset Value, End of Year            $51.57    $39.96   $47.43   $35.50   $29.30
====================================================================================
TOTAL RETURN                              29.2%*   (15.7%)   33.8%    21.3%    32.3%
- ------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net Assets (in millions), End of
   Year                                 $5,863.1  $4,410.5  $3,224.5  $1,166.1  $290.0
Ratio of Expenses to Average Net
   Assets                                   1.31%     1.32%    1.35%    1.40%    1.44%
Ratio of Net Investment Income
   (Loss) to Average Net Assets            (0.57%)    0.11%   (0.52%)  (0.29%)  (0.55%)
Portfolio Turnover Rate                    15.64%    23.43%   13.23%   19.34%   35.15%
- -------------------------------------------------------------------------------------------------
</TABLE>
*    Had the adviser not made the capital  contribution,  the Fund's performance
     would have been reduced by 0.003%.

10 o PROSPECTUS
<PAGE>

BARON GROWTH FUND

Year Ended September 30
<TABLE>
<CAPTION>
                                          1999    1998     1997    1996    1995*
<S>                                      <C>     <C>      <C>     <C>     <C>
Net Asset Value, Beginning of Year        $20.32  $24.89   $18.40  $14.77  $10.00
- ---------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS
Net Investment Income (Loss)               (0.04)   0.06     0.06    0.11    0.04
Net Realized and Unrealized Gains
   (Losses) on Investments                  8.82   (4.56)    6.68    3.66    4.73
- ---------------------------------------------------------------------------------
Total from Investment Operations            8.78   (4.50)    6.74    3.77    4.77
- ---------------------------------------------------------------------------------
LESS DISTRIBUTIONS
Dividends from Net Investment
   Income                                  (0.04)  (0.02)   (0.09)  (0.04)   0.00
Distributions from Net Realized
   Gains                                    0.00   (0.05)   (0.16)  (0.10)   0.00
- ---------------------------------------------------------------------------------
Total Distributions                        (0.04)  (0.07)   (0.25)  (0.14)   0.00
- ---------------------------------------------------------------------------------
Net Asset Value, End of Year              $29.06  $20.32   $24.89  $18.40  $14.77
=================================================================================
TOTAL RETURN                               43.2%  (18.1%)   37.1%   25.8%   47.7%
- ---------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net Assets (in millions), End of
   Year                                   $439.4  $315.6   $390.8   $207.2  $28.6
Ratio of Total Expense to Average Net
   Assets                                   1.40%   1.43%    1.40%    1.54%  1.99%**
Less: Ratio of Interest Expenses to
   Average Net Assets                      (0.03%) (0.06%)   0.00%    0.00%    0.00%
- -----------------------------------------------------------------------------------
Ratio of expenses to Average Net
   Assets exclusive of Interest Expense     1.37%   1.37%    1.40%    1.54%    1.99%**
===================================================================================
Ratio of Net Investment Income (Loss) to
   Average Net Assets                      (0.20%)  0.21%    0.37%    1.20%    1.130**
Portfolio Turnover Rate                    53.36%  40.38%   25.17%   40.27%   40.56%
- --------------------------------------------------------------------------------------
</TABLE>
*    For the period  January 3, 1995  (commencement  of operations) to September
     30, 1995.
**   Annualized.

The Fund's  custodian  offset custody fees amounted to less than $0.01 per share
in 1996 and 1995. The expense offset amounts are included in expense data above.

                                                                 PROSPECTUS o 11
<PAGE>

BARON SMALL CAP FUND

Year Ended September 30
                                                   1999         1998

Net Asset Value, Beginning of Year               $ 8.61        $10.00
- ------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS
Net Investment Loss                               (0.10)        (0.02)
Net Realized and Unrealized Gains
   (Losses) on Investments                         4.86         (1.37)
- ------------------------------------------------------------------------
Total from Investment Operations                   4.76         (1.39)
- ------------------------------------------------------------------------
LESS DISTRIBUTIONS
Dividends Net Investment Income                    0.00          0.00
Distributions from Net Realized Gains              0.00          0.00
- ------------------------------------------------------------------------
Total Distributions                                0.00          0.00
- ------------------------------------------------------------------------
Net Asset Value, End of Year                     $13.37        $ 8.61
========================================================================
TOTAL RETURN                                       55.3%        (13.9%)
- ------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net Assets(in millions), End of Year             $715.7        $403.7
Ratio of Expenses to Average Net Assets            1.34%         1.39%
Ratio of Net Investment Loss
   to Average Net Assets                          (0.99%)       (0.20%)
Portfolio Turnover Rate                           42.69%        59.68%
- ------------------------------------------------------------------------

12 o PROSPECTUS

<PAGE>
OTHER INVESTMENT STRATEGIES


WHAT ARE SOME OF THE OTHER INVESTMENTS THE FUNDS MAKE?

CASH POSITION When the Adviser  determines  that  opportunities  for  profitable
investments  are  limited or that  adverse  market  conditions  exist,  all or a
portion of the Funds' assets may be invested in cash or cash equivalents such as
money market instruments, which include U.S. Government securities, certificates
of deposit,  short-term  investment  grade corporate bonds and other  short-term
debt instruments,  and repurchase agreements.  When a Fund's investments in cash
or similar investments increase,  its investment objectives may not be achieved.
BARON  ASSET FUND may borrow up to 5% of its net  assets  for  extraordinary  or
emergency  temporary  investment  purposes or to meet redemption  requests which
might otherwise require an untimely sale of portfolio  securities.  BARON GROWTH
FUND, BARON SMALL CAP FUND and BARON  iOPPORTUNITY  FUND may borrow up to 30% of
the value of their respective total assets, including the amount borrowed, as of
the time the borrowing is made for temporary, emergency or other purposes.

DEBT SECURITIES The Funds may invest in debt securities which may include notes,
bonds,  debentures and money market  instruments.  Debt securities  represent an
obligation  of the issuer to repay a loan of money to it,  often with  interest.
The debt  securities  in which the Funds may invest  include  rated and  unrated
securities and convertible instruments.  There is no minimum rating for the debt
securities  that  may be  purchased  for  those  Funds.  The  Funds  rely on the
Adviser's  assessment  of the  issuer's  securities  and do not use  independent
ratings organizations.

ILLIQUID  SECURITIES  BARON  ASSET FUND may invest up to 10%,  and BARON  GROWTH
FUND, BARON SMALL CAP FUND and BARON  iOPPORTUNITY FUND may invest up to 15%, of
their  respective  net  assets in  securities  that are  illiquid.  An  illiquid
security is one that cannot be  disposed of in the  ordinary  course of business
within seven days.

SPECIAL  SITUATIONS  The Funds may  invest in  "special  situations."  A special
situation  arises  when,  in the opinion of the  Adviser,  the  securities  of a
company will be recognized and appreciate in value due to a specific anticipated
development at that company.  Such developments  might include a new product,  a
management change, an acquisition or a technological advancement.

FOREIGN  SECURITIES The Funds may invest without limitation in the securities of
foreign issuers in U.S.  denominated form known as American Depository Receipts.
They may also invest in foreign  denominated form (Global Depository Receipts or
European Depository Receipts),  up to 10% of the respective total assets of BAF,
BGF and BSCF and up to 25% of the total assets of BiOPPF.

OPTIONS AND DERIVATIVES   BARON ASSET FUND may write (sell) covered call options
or purchase  put options on equity  and/or debt  securities.  BARON

                                                                 PROSPECTUS o 13
<PAGE>

GROWTH FUND, BARON SMALL CAP FUND and BARON  iOPPORTUNITY  FUND may write (sell)
put options and covered call options and purchase put and call options on equity
and/or debt  securities.  A call option  gives the  purchaser of the options the
right to buy, and when  exercised  obligates the writer to sell,  the underlying
security at the exercise  price.  A put option gives the purchaser of the option
the  right  to  sell,  and when  exercised  obligates  the  writer  to buy,  the
underlying  security  at the  exercise  price.  The  options  may be  listed  or
over-the-counter. The Funds may also enter into equity swap agreements and other
derivative investments.

OTHER   STRATEGIES  The  Funds  have   additional   investment   strategies  and
restrictions that govern their activities.  For a list of these restrictions and
more  information  about  the  investment  strategies,  please  see the  section
"Investment  Goals,  Strategies  and  Risks"  in  the  Statement  of  Additional
Information.  Those that are identified as "fundamental"may only be changed with
shareholder approval, while the others may be changed by the Board of Trustees.

WHAT ARE SOME ADDITIONAL RISK FACTORS?

OPTIONS AND  DERIVATIVES  Options may fail as hedging  techniques in cases where
the price  movements of the securities  underlying the options do not follow the
price  movements  of the  portfolio  securities  subject to the hedge.  Gains on
investments  in  options  and  derivatives  depend on the  Adviser's  ability to
anticipate  correctly the direction of stock prices,  interest rates,  and other
economic  factors.  The  dealer  who  takes  the  other  side  of  a  derivative
transaction could fail. Where a liquid secondary market does not exist, the Fund
would likely be unable to control losses by closing its position.

DEBT SECURITIES Lower rated securities may have a higher yield and the potential
for a greater  return than  investment  grade  securities but may also have more
risk. Lower rated  securities are generally meant for longer-term  investing and
may be subject to certain risks with respect to the issuing entity and to market
fluctuations.  See the SAI for more information.  The Adviser will also evaluate
the  securities  and the ability of the issuers to pay interest  and  principal.
With lower rated debt  securities,  a Fund's  ability to achieve its  investment
objective may be more dependent on the Adviser's  credit  analysis than might be
the case with higher rated securities. The market price and yield of lower rated
securities  are generally  more volatile than those of higher rated  securities.
Factors adversely  affecting the market price and yield of these securities will
adversely  affect the  Fund's  net asset  value.  The  trading  market for these
securities  may be less liquid than that of higher rated  securities.  Companies
that issue lower rated  securities may be highly  leveraged or may have unstable
earnings,  and consequently the risk of the investment in the securities of such
issuers may be greater than with higher rated securities.

The interest bearing features of debt securities carry a promise of income flow,
but the price of the  securities  are inversely  affected by changes in interest
rates and are therefore  subject to the risk of market price  fluctuations.  The
market values of debt

14 o PROSPECTUS

<PAGE>
securities  may also be affected by changes in the credit  ratings or  financial
condition of the issuers.

FOREIGN SECURITIES Investments in foreign securities may have greater risks than
investments in domestic  securities and such risks may be unrelated to the price
of the security.  Such risks include  currency  exchange  risks, as the value of
local currency relates to the U.S.  dollar.  The value of a foreign security may
be worth less in U.S. Dollars even if the security increases in value in its own
country due to declines  in exchange  rates or changes in U.S. or foreign  laws.
Foreign   investments   are  also  subject  to  political  and  economic  risks,
particularly  in countries with unstable  governments,  different legal systems,
and limited  industries.  In some countries there may be the risk of governments
seizing  the  assets or  operations  of a  company.  Further,  there may be less
governmental supervision of foreign markets, including non-standardize financial
reporting and less publicly available  information.  There is also the risk that
the foreign securities may be less liquid,  there may be delays in settlement of
purchase  and sale  transactions,  and there may not be adequate  protection  to
ensure the other side will complete a transaction.

CONVERTIBLE  SECURITIES  Since  convertible  securities  combine the  investment
characteristics  of  both  bonds  and  common  stocks,  the  Funds'  convertible
securities  investments  absorb the market  risks of both stocks and bonds.  The
combination does,  however,  make the investment less sensitive to interest rate
changes than straight bonds of comparable  maturity and quality and usually less
volatile than common stocks.  Because of these factors,  convertible  securities
are likely to perform  differently than broadly-based  measures of the stock and
bond markets.

BORROWINGS  To the extent a Fund  borrows,  it must  maintain  continuous  asset
coverage of 300% of the amount  borrowed.  Such borrowing has special risks. Any
amount borrowed will be subject to interest costs that may or may not exceed the
appreciation of the securities purchased.

ILLIQUID  SECURITIES  The absence of a trading market could make it difficult to
ascertain a market value for illiquid positions.  A Fund's net asset value could
be adversely affected if there were no ready buyer at an acceptable price at the
time the Fund decided to sell.  Time-consuming  negotiations  and expenses could
occur in disposing of the shares.

SPECIAL  SITUATIONS  Investments  in special  situations  have the risk that the
anticipated  development  does  not  occur  or does  not  attract  the  expected
attention.


MANAGEMENT OF THE FUND

The Board of Trustees  oversees the management of the Funds. A list of the Board
members and the Funds'  officers  may be found in the  Statement  of  Additional
Information. BAMCO, Inc., the Adviser, is located at 767 Fifth Avenue, New York,
New York 10153, and is responsible for portfolio management.  It is a subsidiary
of Baron Capital Group, Inc. ("BCG").  Baron Capital, Inc. ("Baron Capital"),  a
registered

                                                                 PROSPECTUS o 15
<PAGE>
broker-dealer  and  the  distributor  of the  shares  of the  Funds,  is  also a
subsidiary of BCG.

Ronald Baron is the founder, chief executive officer and chairman of the Adviser
and BCG and is the  principal  owner of BCG.  Morty Schaja is the  president and
chief operating officer of the Adviser and BCG and has been with the Adviser and
BCG since 1991.

Mr. Baron has been the  portfolio  manager of BARON  ASSET FUND and BARON GROWTH
FUND since their  inception.  He has managed money for others since 1975.  Since
January 1999, BARON GROWTH FUND has been managed by a team that is headed by Ron
Baron and that  includes  Matt  Ervin and Mitch  Rubin.  Matt  Ervin has been an
analyst  with Baron  Funds for 5 years and before that was an analyst at another
large money management firm. Mitch Rubin has worked at Baron Funds as an analyst
for 4 years and  before  that was an analyst at a large  brokerage  firm.  Cliff
Greenberg  has been the  portfolio  manager  of BARON  SMALL CAP FUND  since its
inception. Mr. Greenberg joined Baron Funds in January of 1997. He was a general
partner and portfolio manager at HPB Associates, L.P., an investment partnership
from  January  1990 until he joined  Baron  Funds.  BARON  iOPPORTUNITY  FUND is
managed  by  co-portfolio  managers  Mitch  Rubin and Matt  Ervin.  All of BARON
iOPPORTUNITY FUND's holdings will be pre-approved by Morty Schaja and Ron Baron.
Each of the portfolio  managers  named above may serve as portfolio  managers or
analysts for other products offered by affiliates that could conflict with their
responsibilities to the Funds for which they are portfolio mangers.  The Adviser
also keeps the books of account of each Fund,  and  calculates  daily the income
and net asset  value per  share of each  Fund.  For its  services,  the  Adviser
receives  a fee  payable  monthly  from the  assets of each Fund equal to 1% per
annum of each Fund's respective average daily net asset value.

Brokerage transactions for the Funds in exchange-listed  securities are executed
primarily by or through the Adviser's affiliate,  Baron Capital, when consistent
with  trying to obtain the best net results  for the Funds.  Baron  Capital is a
registered  broker-dealer  and a member of the NASD. Please see the Statement of
Additional Information for more information about trade executions.

12b-1 PLAN

The Funds have  adopted a plan  under  rule  12b-1  that  allows the Fund to pay
distribution fees for the sale and distribution of their shares and for services
provided to shareholders.  Because the fees are paid out of the Funds' assets on
an  on-going  basis,  over  time  these  fees  will  increase  the  cost of your
investment and may cost you more than paying other types of sales  charges.  The
12b-1 plan authorizes the Fund to pay Baron Capital a distribution  fee equal on
an  annual  basis to 0.25% of each  Fund's  average  daily net  assets.  See the
Statement of Additional  Information for a more detailed listing of the expenses
covered by the Distribution Plan.

16 o PROSPECTUS
<PAGE>
INFORMATION ABOUT YOUR INVESTMENT


HOW YOUR SHARES ARE PRICED

The  purchase or sale price for your shares is the  particular  Fund's net asset
value  per  share  ("NAV"),  which is  generally  calculated  as of the close of
trading of the New York Stock Exchange  (usually 4:00 p.m. Eastern time) on each
day the Exchange is open.  Your  purchase or sale will be priced at the next NAV
calculated  after your order is accepted by the Baron Funds'  transfer agent. If
you purchase or sell shares through a brokerage  firm,  bank or other  financial
institution,  your  transaction  will receive the NAV next calculated  after the
financial  institution  receives  your  order.  The Funds have  agreements  with
certain  financial  institutions  which authorize the financial  institutions to
accept  orders or  designate  third  parties  to accept  orders on behalf of the
Funds. If you place your order through these authorized financial  institutions,
the order will be  considered  received  when the  authorized  party accepts the
order.  Those orders will receive the NAV next computed after  acceptance of the
order by the authorized  institution or its agent.  The Funds'  investments  are
valued based on the last sale price or where market  quotations  are not readily
available,  based on fair value as determined by the Adviser,  using  procedures
established  by the Board of  Trustees.  The Funds may  change the time at which
orders are priced if the  Exchange  closes at a different  time or an  emergency
exists.

HOW TO PURCHASE SHARES

You may purchase shares of the Funds directly without paying a sales charge.  An
application is included with this prospectus. Special applications are available
to open individual retirement accounts ("IRAs").  The minimum initial investment
is $2,000  unless you choose to invest  through the Baron  InvestPlan  (see page
18).  There is no minimum  for  subsequent  purchases.  The Funds may reject any
proposed  purchase.  If the Funds  identify  short term traders,  the Funds will
reject their proposed purchases.

At present,  only U.S. citizens and non-U.S.  citizens with a tax identification
number who reside in the U.S. may purchase shares of the Funds.  Please call the
Funds' transfer agent at 1-800-442-3814, if you have any questions.

You may invest or add to your account using any of the following methods:

                                                                 PROSPECTUS o 17
<PAGE>
BY MAIL

TO OPEN A NEW ACCOUNT send your signed  application form with your check payable
to BARON FUNDS to:

               Baron Funds
               P.O. Box 219946
               Kansas City, MO 64121-9946

PLEASE  MAKE SURE YOU  INDICATE  HOW MUCH MONEY YOU WANT  INVESTED IN EACH FUND.
Checks must be payable in U.S.  dollars and must be drawn on a U.S. bank.  Third
party checks, credit cards and cash will not be accepted.

WHEN ADDING TO YOUR ACCOUNT complete the additional  investment form provided at
the bottom of your  account  statement or purchase  confirmation.  If you do not
have that form,  write a note  indicating  in which  Baron  Fund the  investment
should go and the account number. Send it to the address above.

BY WIRE

You can make your initial or additional  investments in the Funds by wire. To do
so: (1) contact the Funds' transfer agent, DST Systems,  Inc., at 1-800-442-3814
to obtain an account number. (2) Complete and sign the application form and mail
it to Baron Funds,  P.O. Box 219946,  Kansas City, MO  64121-9946.  (3) Instruct
your bank to wire funds to the United  Missouri Bank of Kansas City,  N.A.,  ABA
No. 1010-0069-5, Account No. 98-7037-101-4. (4) Be sure to specify the following
information in the wire: (a) Fund you are buying,  (b) your account number,  (c)
your name, and (d) your wire number.

Please  be sure to  include  your  name  and  account  number.  The  Fund is not
responsible for delays in the wiring process.

BY TELEPHONE

Once  your  account  is open you may add to your  investment  by  telephone  and
exchange  among  the  Baron  Funds  if  you  have  elected  that  option  on the
application.  By choosing this option you authorize  Baron Funds to draw on your
bank account. Please note that your accounts must be identically registered.  To
add this option to your account, call 1-800-442-3814 for the forms.

BARON INVESTPLAN

Baron  InvestPlan  is an automatic  investment  plan  offered by the Funds.  The
minimum initial investment is $500 with monthly  investments of as little as $50
automatically  invested  from  your  checking  account.  To  enroll in the Baron
InvestPlan,  complete the Enrollment Form (available by calling 1-800-99-BARON),
attach a voided  check and mail them to Baron  Funds,  P.O.  Box 219946,  Kansas
City, MO 64121-9946.

18 o PROSPECTUS

<PAGE>
THROUGH BROKER-DEALERS

You may purchase shares of the Funds through a broker-dealer  or other financial
institution  that may  charge a  transaction  fee.  If you  purchase  the shares
directly  from  the  Funds,  no  transaction  fee is  charged.  The  Funds  also
participate in no transaction fee programs with many national brokerage firms.


HOW TO REDEEM SHARES

You may redeem your shares of the Funds by any of the methods  described  below.
There are no  redemption  charges.  If you are selling  shares in an IRA account
please read the information in the IRA kit.  Redemptions  will not be made until
all of the  requirements  for redemption are met.  Redemptions are priced at the
next NAV calculated after your redemption request is received in proper form. If
you have recently  purchased  shares your redemption  request may not be honored
until the purchase check has cleared your bank,  which  generally  occurs within
fifteen calendar days.

BY MAIL

Write  a  letter  that  includes  the  following  information:  the  name of the
registered  owner(s) of the account,  the name of the Fund, the number of shares
or dollar  amount to be  redeemed,  and the account  number.  The letter must be
signed  in  exactly  the same  way the  account  is  registered,  including  the
signature of each joint owner,  if applicable.  Mail the request to the transfer
agent at Baron Funds, P.O. Box 219946, Kansas City, MO 64121-9946.

A signature  guarantee is required for  redemptions  of more than $50,000 in any
quarter.  See the "Special  Information About  Redemptions"  section on page XX.
Within three days after receipt of a redemption request by the transfer agent in
proper form, the Fund will normally mail you the proceeds.

BY TELEPHONE

If you have  selected  the  telephone  redemption  option  when you opened  your
account,  you may redeem  your shares by  telephone.  To add this option to your
account call  1-800-442-3814  for a telephone  redemption  form. Once made, your
telephone  request cannot be changed.  The minimum amount that you may redeem by
telephone is $1,000.  The maximum amount that you may redeem by telephone in any
quarter is $50,000.  You may receive  the  proceeds by any one of the  following
methods:  (a) we will  mail a check to the  address  to which  your  account  is
registered,  (b) we will transmit the proceeds by electronic funds transfer to a
pre-authorized bank account (usually a two banking day process),  or (c) we will
wire the proceeds to a  pre-authorized  bank account for a $10.00 fee (usually a
next banking day process).

                                                                 PROSPECTUS o 19
<PAGE>
The Funds have the right to refuse a  telephone  redemption  if they  believe it
advisable  to do so.  If you  have  selected  the  telephone  option  you may be
responsible  for any fraudulent  telephone  order as long as the Funds and their
transfer agent use reasonable procedures to confirm that telephone  instructions
are genuine.

BY BROKER-DEALER

You may redeem  shares  through  broker-dealers  or other  institutions  who may
charge you a fee. The Funds may have special redemption  procedures with certain
broker-dealers.

SHORT-TERM TRADING FEE

BARON  iOPPORTUNITY  FUND imposes a short-term  trading fee on  redemptions  and
exchanges of shares held for less than 180 days. The fee is 1% of the redemption
value and is deducted from the redemption proceeds. The Fund uses the "first-in,
first-out"  method to determine the holding  period,  so if you bought shares on
different  days,  the  shares   purchased  first  will  be  redeemed  first  for
determining  whether  the fee  applies.  The fee is retained by the Fund for the
benefit  of the  remaining  shareholders  to  offset  the  administrative  costs
associated with processing redemptions and exchanges and to offset the portfolio
transaction costs and facilitate portfolio management.

The Fund will waive the fee for defined  contribution  plans. The Fund may waive
the fee on  redemptions  if the Fund  believes it is in the best interest of the
Fund.  Please check with your account  representative  before you purchase  your
shares to determine whether the fee waiver is applicable.

SPECIAL INFORMATION ABOUT REDEMPTIONS

If the amount to be redeemed in any quarter is greater than $50,000,  all of the
signatures on a redemption request and/or certificate must be guaranteed. If you
have changed your address  within 30 days of a redemption  request,  a signature
guarantee is required.  A signature  guarantee  helps  protect you and the Funds
from fraud.  You can obtain a signature  guarantee from most securities firms or
banks,  but not from a notary public.  If you are redeeming  $50,000 or less per
quarter,  and if  proceeds  are sent to the  address  of  record,  no  signature
guarantee is required.  For joint  accounts,  each signature must be guaranteed.
Please call the transfer agent at 1-800-442-3814 if you are unsure of any of the
requirements.  Please  remember that the Funds will not redeem your shares until
the original letter of instruction  with the signature  guarantee in proper form
has been received by the transfer agent.

Any Fund share  certificates  that have been issued  must be returned  with your
redemption  request.  The transfer  agent may require other  documentation  from
corporations,  trustees,  executors,  and  others  who hold  shares on behalf of
someone

20 o PROSPECTUS
<PAGE>
else. If you have any questions  concerning  the  requirements,  please call the
transfer agent at 1-800-442-3814.  Redemptions will not be made until all of the
conditions,  including  receipt of all  required  documentation  by the transfer
agent, have been satisfied.

A redemption or exchange of Fund shares may generate a tax liability.

If you redeem  more than  $250,000 or 1% of the net asset value of a Fund during
any 90-day period,  the Fund has the right to pay the redemption  price,  either
totally or partially, by a distribution of portfolio securities instead of cash.

If your account falls below $2,000 because of withdrawals,  the Fund may ask you
to increase  your balance.  If it is still below $2,000 after 60 days,  the Fund
may close your account and send you the proceeds.

The Funds may suspend the normal  redemption  process if trading on the New York
Stock Exchange is suspended or if an emergency exists that reasonably  precludes
the valuation of the Funds' net assets.


DISTRIBUTIONS AND TAXES

Each Fund pays its  shareholders  dividends from its net  investment  income and
distributes any net realized  capital gains once each year.  Your  distributions
will be reinvested in the Fund unless you instruct the Fund otherwise. There are
no charges on reinvestments.  After every distribution,  the value of a share is
automatically  reduced  by the amount of the  distribution.  If you elect not to
reinvest and the postal or other delivery service is unable to deliver checks to
your address of record,  your  distribution  will be  reinvested  in  additional
shares. No interest will accrue on amounts represented by uncashed  distribution
or redemption checks.

You are  subject  to  federal  income  tax on Fund  distributions,  unless  your
investment is in an IRA or other  tax-advantaged  account. The tax status of any
distribution  is the same  regardless  of how long you have invested in the Fund
and whether you reinvest  your  distributions  or take them in cash.  Income and
short-term  capital gain  distributions  are taxed at the ordinary  income rate.
Long-term capital gains  distributions are taxed at either 10% or 20%, depending
on your tax bracket.  The tax status of the annual distribution will be detailed
in an annual tax statement from the Fund. Distributions declared by the Fund may
also be subject to state and local taxes.  You should  consult with your own tax
adviser regarding your personal tax situation.

If you do not  provide  the Fund with your valid  social  security  or  taxpayer
identification number, you will be subject to backup withholding for taxes.

                                                                 PROSPECTUS o 21

<PAGE>
GENERAL INFORMATION


CUSTODIAN, TRANSFER AGENT AND DIVIDEND AGENT

The Bank of New  York,  100  Church  Street,  New  York,  New York  10286 is the
custodian for the Baron Funds' cash and securities.  DST Systems, Inc. serves as
transfer  agent  and  dividend  disbursing  agent for the  shares.  They are not
responsible for investment decisions for the Baron Funds.

SHAREHOLDER INFORMATION

If you have  questions  about your account or  transactions  please  contact the
transfer agent, DST Systems,  Inc., P.O. Box 219946, Kansas City, MO 64121-9946,
or by telephone to 1-800-442-3814.

If you have  questions  about  general  Fund  information  please call the Baron
Funds' office at 1-800-99-BARON or 212-583-2100.

As a Massachusetts business trust, annual shareholder meetings are not required.
The Funds send quarterly reports to shareholders.

22 o PROSPECTUS

<PAGE>

[PHOTOS]
<PAGE>
[REGISTERED LOGO]
BARON
FUNDS


FOR MORE INFORMATION

Investors  who want  more  information  about the Baron  Funds  may  obtain  the
following documents free upon request at the numbers or address below.

SHAREHOLDER REPORTS
Additional  information about the Funds'  investments is available in the Fund's
quarterly  reports to Shareholders.  In the Funds' annual report you will find a
discussion of the market conditions and investment strategies that significantly
affected the Funds' performance during the last fiscal year.

STATEMENT OF ADDITIONAL INFORMATION
Additional  information  is  also  contained  in  the  Statement  of  Additional
Information   dated  January  17,  2000.  A  current   Statement  of  Additional
Information is on file with the Securities and Exchange  Commission  ("SEC") and
is  incorporated  by  reference.  You may obtain  the  Statement  of  Additional
Information and the shareholder reports without charge by writing or calling the
Funds.


TO OBTAIN INFORMATION

By telephone:          Call 1-800-99-BARON (1-800-992-2766)

By mail write to:      BARON FUNDS
                       767 Fifth Avenue
                       New York, NY 10153

By e-mail:             Send your request to:
                       [email protected]

On the Internet:       Text-only versions of Baron Funds documents
                       can be viewed on-line or downloaded from:
                       http://www.baronfunds.com

or from:               http://www.sec.gov

OTHER
You can also  obtain  copies by  visiting  the SEC's  Public  Reference  Room in
Washington,  D.C.  (phone  1-800-SEC-0330).  Copies of this  information  may be
obtained,  upon payment of a  duplicating  fee, by writing the Public  Reference
Section of the SEC, Washington, D.C. 20549- 6009.

Ticker Symbols:    BARON  ASSET FUND          BARAX
                   BARON GROWTH FUND          BGRFX
                   Baron Small Cap Fund       BSCFX
                   Baron iOpportunity Fund    BIOPX

SEC file number:  811-5032

                                                                       2000PROSP
<PAGE>

                                BARON  ASSET FUND
                                BARON GROWTH FUND
                              BARON SMALL CAP FUND
                             BARON iOPPORTUNITY FUND

                                767 Fifth Avenue
                            New York, New York 10153
                                 (800) 99-BARON
                                  212-583-2100

                            ________________________


                       STATEMENT OF ADDITIONAL INFORMATION
                                January 17, 2000

                            ________________________


               This  Statement  of  Additional  Information  ("SAI"
               is  not  a  prospectus. The Fund's Prospectus, dated
               January 17, 2000, may be obtained  without  charge
               by writing or calling  the Funds at the address and
               telephone number above.


                            ________________________













     NO  PERSON  HAS  BEEN  AUTHORIZED  TO GIVE ANY  INFORMATION  OR TO MAKE ANY
     REPRESENTATIONS  OTHER THAN THOSE  CONTAINED  IN THIS SAI OR IN THE RELATED
     PROSPECTUS.

<PAGE>

                                TABLE OF CONTENTS
                                -----------------


                                                   PAGE IN
                                                   STATEMENT
                                                   OF
                                                   ADDITIONAL     PAGE IN
                                                   INFORMATION    PROSPECTUS



FUND HISTORY AND CLASSIFICATION................         3
 Baron iOpportunity Fund Questions & Answers...         3
 Investment Goals, Strategies and Risks........         4         3,5,13,14
 Options Transactions and Swaps................         8            13
 Use of Segregated and Other Special Accounts..         9
 Investment Restrictions.......................         9
 Turnover Rate.................................        11


MANAGEMENT OF THE FUNDS........................        12            15
 Board of Trustees and Officers................        12
 Principal Holders of Shares...................        14
 Investment Adviser............................        15
 Service Agreements............................        16
 Distributor...................................        16
 Distribution Plan.............................        16            16
 Brokerage.....................................        18
 Custodian, Transfer Agent and Dividend Agent..        20            22


REDEMPTION OF SHARES...........................        20            19


NET ASSET VALUE................................        20            17


TAXES..........................................        20            21


ORGANIZATION AND CAPITALIZATION................        21
 General.......................................        21            22
 Shareholder and Trustee Liability.............        21


OTHER INFORMATION..............................        22            Back Cover
 Independent Accountants.......................        22
 Calculations of Performance Data..............        22

<PAGE>

FUND HISTORY AND CLASSIFICATION
- -------------------------------

BARON  ASSET  FUND is a no-load,  open-end,  diversified  management  investment
company  organized  as a  series  fund  and  established  under  the laws of the
Commonwealth  of  Massachusetts  on  February  19,  1987.  There are four series
currently available (individually a "Fund" and collectively the "Funds"):  BARON
ASSET FUND,  started in June of 1987,  BARON GROWTH FUND  (formerly  named Baron
Growth & Income Fund), started in January of 1995, BARON SMALL CAP FUND, started
in October 1997, and BARON  iOPPORTUNITY  FUND, which starts operations in March
2000.

BARON iOPPORTUNITY FUND QUESTIONS & ANSWERS
- -------------------------------------------

1.   HOW WILL BARON iOPPORTUNITY FUND DIFFER FROM OTHER INTERNET FUNDS?

     Baron iOpportunity Fund defines Internet broadly to encompass a diversified
     group of industries and companies with  opportunities  directly  related to
     the  web,  as well as  opportunities  stemming  from the  rapidly  changing
     information  technology  environment.  The Fund  will  focus on new  media,
     interactive  communication,  electronic  content  delivery,  networking and
     e-commerce  businesses.  The  Fund  will  seek  investments  in  both  new,
     emerging,  Internet-related  businesses,  as well as established  companies
     that have significant and scalable  Internet-related  growth opportunities.
     Baron believes the Fund is a potentially more  conservative and diversified
     approach to Internet  investing  than other  Internet  Funds.  In addition,
     Baron  iOpportunity  Fund will bring  Baron  Funds'  value  orientation  to
     investing in the Internet.

2.   HOW DOES THE BARON iOPPORTUNITY FUND DEFINE "OPPORTUNITY"?

     Baron  believes  that value is  created by  investing  in  businesses  with
     sustainable,  competitive  advantage and strong barriers to entry that will
     allow those businesses to realize high rates of return over long periods of
     time.  The  Fund's  goal  is to  purchase  existing  and new  companies  at
     valuations  that it  believes  are  attractive  relative  to the  Advisor's
     projection of future cash flows and earnings  power.  The Adviser  believes
     that the rapidly  changing  information  technology  environment will allow
     Baron's independent research to identify investment  opportunities that are
     attractively  priced  relative  to their  future  prospects.  Although  the
     valuations  of many  Internet-related  companies  have risen  substantially
     during recent years,  Baron  believes that the long-term  opportunities  of
     many Internet  businesses are at a very early stage of development  ... and
     that most Internet opportunities have yet to be discerned.

3.   WILL THE  BARON  iOPPORTUNITY  FUND  SHARE  THE SAME  LONG-TERM  INVESTMENT
     OBJECTIVE OF THE OTHER BARON FUNDS?

     Yes. The Baron  iOpportunity Fund intends to analyze businesses with a time
     horizon measured in years - not months, weeks or days. The Fund will invest
     in companies which it believes have  open-ended,  scalable  opportunities -
     businesses that it expects to be  substantially  larger and more profitable
     in the future  than they are  today.  The  Adviser  will seek to find those
     companies that have the potential for sustainable competitive advantage and
     may benefit most from those opportunities over time. The Adviser intends to
     hold those  investments for the long term to realize the substantial  gains
     that it  believes  can be realized in this  environment.  Accordingly,  the
     Adviser  believes  the Fund  will  have  low  turnover  and will  hopefully
     minimize current taxes and maximize long-term capital gains. Of course, the
     Fund intends to continue to hold only those  investments  whose  valuations
     continue to afford the  potential  for  substantial  appreciation  from the
     then-current levels.

4.   WILL THE BARON  iOPPORTUNITY  FUND FOCUS  PREDOMINANTLY ON SMALL AND MEDIUM
     SIZED COMPANIES AS DO THE OTHER BARON FUNDS?

                                      -3-
<PAGE>
     No. The Baron  iOpportunity  Fund will not be limited  solely to  companies
     with a  specific  market  capitalization.  The Fund  will  invest  in those
     companies that the Adviser  believes have the greatest growth prospects and
     appreciation  potential  in  the  new  information  technology  environment
     regardless of their current size.

5.   BARON FUNDS HAS HISTORICALLY LIMITED ITS DIRECT EXPOSURE TO TECHNOLOGY, HOW
     WILL BARON iOPPORTUNITY FUND APPROACH TECHNOLOGY INVESTMENTS?

     While  direct  technology  investments  may  play a  modest  role in  Baron
     iOpportunity  Fund it will approach these  investments in a similar fashion
     to the other  Baron  Funds.  The Funds have not  historically  made  direct
     investments  in hardware or software  companies,  but many of Baron  Funds'
     investment  successes  in recent  years  have been  indirectly  related  to
     technology.  While  Baron  Funds has not  directly  invested  in  "dot-com"
     companies,   the  Funds'  media,   communication   and  financial   service
     investments  have  benefited from the explosive  growth in Internet  usage.
     Further, many of the Funds' traditional bricks and mortar, branded consumer
     investments are currently implementing Internet strategies that the Adviser
     believes  will  accelerate  their  growth.   By  indirectly   investing  in
     technology,  Baron Funds has  historically  benefited  from the  technology
     explosion  without the higher risks and volatility  associated  with direct
     technology  investments.  The Adviser believes that Baron iOpportunity Fund
     will be able to invest  successfully  in the Internet  without  significant
     exposure  to  specific   products  that  may  be  prone  to   technological
     obsolescence.  Baron's  research of the Internet  and its likely  affect on
     practically every company in the Baron Funds' portfolios has been, and will
     continue to be, intense.

6.   WHO WILL BE MANAGING BARON iOPPORTUNITY FUND?

     Baron  iOpportunity  Fund will be managed by  co-portfolio  managers  Mitch
     Rubin and Matt Ervin. Mitch is a graduate of the University of Michigan and
     Harvard  Law School and has been with Baron  since  1995.  Prior to joining
     Baron, Mitch was an emerging growth stock research analyst at Solomon Smith
     Barney and an associate at Latham & Watkins.  Matt is a graduate of Harvard
     (bachelors and masters  degrees) and has been with Baron since 1995.  Prior
     to joining Baron,  Matt was a research  analyst with Sanford C. Bernstein &
     Co.  Both  Mitch and Matt have also  been  co-portfolio  managers  of Baron
     Growth Fund with Ron Baron since January 1999. Andrew Peck will be a senior
     analyst  of the Fund.  Andrew is a graduate  of Yale and has a JD/MBA  from
     Stanford.  Since  joining  Baron in 1998,  Andrew has focused his  research
     analysis on  Internet-related  opportunities  in the other Baron Funds. All
     investments will be approved for purchase in advance by Ron Baron, Chairman
     and Chief Executive Officer and Morty Schaja, President and Chief Operating
     Officer.  Baron believes Baron  iOpportunity  Fund will derive  significant
     benefit  from  the  combination  of a  youthful  management  team  with the
     experience and wisdom of the Fund's senior executives.

7.   HOW CAN I  PURCHASE  THE BARON  iOPPORTUNITY  FUND AND WHAT IS THE  MINIMUM
     INITIAL INVESTMENT?

     The Fund will be in  subscription  beginning  January 18, 2000 through 4:00
     p.m. Eastern Time on February 29, 2000. During the subscription period, the
     Fund will be  available  at the  initial  offering  price of $10 per share.
     After that time,  the share  price will  fluctuate  and may be more or less
     than $10 per share. There is a $2,500 initial minimum brokerage  investment
     for the Fund ($2,000 for IRA and custodial accounts).


INVESTMENT GOALS, STRATEGIES AND RISKS
- --------------------------------------

BARON ASSET FUND's investment  objective is to seek capital appreciation through
investments in securities of small and medium sized  companies with  undervalued
assets or favorable growth prospects.  BARON GROWTH FUND's investment  objective
is to seek

                                      -4-
<PAGE>
capital  appreciation.  BARON SMALL CAP FUND's  investment  objective is to seek
capital  appreciation  through  investments  primarily  in  securities  of small
companies.  The  investment  objective  of BARON  iOPPORTUNITY  FUND is  capital
appreciation.  BARON  ASSET FUND  invests  primarily  in small and medium  sized
companies  with  market  capitalizations  of  approximately  $500  million to $5
billion.  BARON  GROWTH FUND and BARON SMALL CAP FUND  invest  primarily  in the
securities  of  smaller  companies  with  market  capitalizations  of up to $1.5
billion.  At least 65% of BARON SMALL CAP FUND's total  assets,  measured at the
time of purchase,  are invested in smaller  companies.  BARON  iOPPORTUNITY FUND
invests in companies of all sizes.

In addition to the principal investment strategies of the Funds described in the
Prospectus  on  pages 3 and 13,  the  Funds  may use the  additional  strategies
described below.  These investment  strategies are not fundamental  policies and
may be changed by the Fund's Board of Trustees.  Shareholders  would be notified
of any material changes. Some of the strategies discussed below are mentioned in
the Prospectus, but are explained in more detail here.

FOREIGN SECURITIES  BARON ASSET FUND, BARON GROWTH FUND and BARON SMALL CAP FUND
may invest up to 10% and BARON  iOPPORTUNITY  FUND may invest up to 25%of  their
respective  total assets directly in the securities of foreign issuers which are
not  publicly  traded in the U.S. and may also invest in foreign  securities  in
domestic markets through depositary  receipts without regard to this limitation.
These securities may involve  additional risks not associated with securities of
domestic companies, including exchange rate fluctuations,  political or economic
instability,   the  imposition  of  exchange   controls,   or  expropriation  or
confiscatory  taxation.  Issuers of foreign securities are subject to different,
often less detailed, accounting,  reporting and disclosure requirements than are
domestic issuers.  The Funds may invest in securities commonly known as American
Depository  Receipts ("ADRs"),  and in European Depository Receipts ("EDRs") and
Global  Depository  Receipts  ("GDRs")  or  other  securities  convertible  into
securities of foreign issuers.  ADRs are  certificates  issued by a U.S. bank or
trust company and represent the right to receive  securities of a foreign issuer
deposited  in a domestic  bank or  foreign  branch of a United  States  bank and
traded on a U.S. exchange or in an  over-the-counter  market.  EDRs and GDRs are
receipts  issued in Europe  generally  by a non-U.S  bank or trust  company that
evidence ownership of non-U.S. or domestic securities. There are no fees imposed
on the purchase or sale of ADRs, EDRs or GDRs although the issuing bank or trust
company may impose fees on the purchase of dividends and the conversion of ADRs,
EDRs and GDRs into the  underlying  securities.  Investment  in ADRs has certain
advantages over direct investment in the underlying non-U.S.  securities,  since
(i) ADRs are U.S. dollar denominated  investments which are easily  transferable
and for which market  quotations  are readily  available  and (ii) issuers whose
securities are represented by ADRs are subject to the same auditing,  accounting
and financial  reporting  standards as domestic  issuers.  EDRs and GDRs are not
necessarily denominated in the currency of the underlying security.

REITs  The Funds may invest in the equity  securities of real estate  investment
trusts ("REITs"). A REIT is a corporation of business trust that invests in real
estate and derives its income from rents from real property or interest on loans
secured by mortgages on real property. The market value of REITs may be affected
by changes in the tax laws or by their  inability  to qualify  for the  tax-free
pass-through  of their  income.  The REIT portion of the  portfolio  may also be
affected  by general  fluctuations  in real  estate  values and by  defaults  by
borrowers or tenants.

LENDING The Funds may lend their portfolio securities to institutions as a means
of earning additional income. In lending their portfolio  securities,  the Funds
may incur  delays in  recovery of loaned  securities  or a loss of rights in the
collateral.  To minimize  such risks,  such loans will only be made if the Funds
deem the other  party to be of good  standing  and  determines  that the  income
justifies  the risk.  BARON  ASSET FUND will not lend more than 10% of its total
assets and BARON GROWTH FUND, BARON SMALL CAP FUND and BARON  iOPPORTUNITY  FUND
will not lend more than 25% of their respective total assets.

MORTGAGE-BACKED  SECURITIES  The Funds may  invest up to 5% of their  respective
assets in  mortgage-backed  securities  that are  issued or  guaranteed  by U.S.
government  agencies  or  instrumentalities,  such  as the  Government  National
Mortgage   Association   and  the   Federal   National   Mortgage   Association.
Mortgage-backed securities represent direct or indirect participation in, or are
secured by and payable  from,  mortgage  loans secured by real  property.  These
securities are subject to the risk that prepayments on the underlying  mortgages
will cause the  principal and interest on the  mortgage-backed  securities to be
paid prior to their stated maturities.  Mortgage

                                      -5-
<PAGE>
prepayments are more likely to accelerate during periods of declining  long-term
interest  rates.  If a  prepayment  occurs,  the  Funds  may have  unanticipated
proceeds  which it may then have to invest at a lower  interest rate, and may be
penalized by not having  participated  in a  comparable  security not subject to
prepayment.

WHEN-ISSUED SECURITIES  The Funds may invest up to 5% of their respective assets
in debt and equity  securities  purchased on a when-issued  basis.  Although the
payment and interest terms of when-issued securities are established at the time
the purchaser enters into the commitment, the actual payment for and delivery of
when-issued  securities generally takes place within 45 days. The Fund bears the
risk that  interest  rates on debt  securities  at the time of  delivery  may be
higher or lower than those contracted for on the when-issued  security.  Failure
of the issuer to deliver  the  security  purchased  on a  when-issued  basis may
result in a loss or missed opportunity to make an alternative investment.

MEDIUM AND LOWER RATED CORPORATE DEBT SECURITIES  All of the Funds may invest up
to 35% of their respective total assets in debt securities that are rated in the
medium to lowest  rating  categories  by S&P and  Moody's,  some of which may be
known as "junk bonds."

The Funds  will rely on the  Adviser's  judgment,  analysis  and  experience  in
evaluating debt  securities.  The Adviser  believes that the difference  between
perceived risk and actual risk creates the  opportunity  for profit which can be
realized through thorough analysis. Ratings by S&P and Moody's evaluate only the
safety of principal and interest  payments,  not market value risk.  Because the
creditworthiness  of an issuer may change more rapidly than is able to be timely
reflected  in changes in credit  ratings,  the Adviser  monitors  the issuers of
corporate  debt  securities  held in the Funds'  portfolio.  The credit  ratings
assigned by a rating  agency to a security are not  considered by the Adviser in
selecting a security.  The Adviser examines the intrinsic value of a security in
light of market conditions and the underlying fundamental values. Because of the
nature of medium and lower rated corporate debt  securities,  achievement by the
Funds  of  their  respective   investment  objectives  when  investing  in  such
securities is dependent on the credit analysis of the Adviser. The Adviser could
be wrong in its analysis.  If the Funds  purchased  primarily  higher rated debt
securities, risks would be substantially reduced.

A general  economic  downturn or a significant  increase in interest rates could
severely disrupt the market for medium and lower grade corporate debt securities
and adversely affect the market value of such securities. The ability of issuers
of medium and lower grade  corporate debt  securities to repay  principal and to
pay  interest,  to  meet  projected  business  goals  and to  obtain  additional
financing may be adversely  affected by economic  conditions.  Such consequences
could  lead to an  increased  incidence  of  default  for  such  securities  and
adversely  affect  the  value  of the  corporate  debt  securities  in a  Fund's
portfolio.  The secondary market prices of medium and lower grade corporate debt
securities  are  more  sensitive  to  adverse  economic  changes  or  individual
corporate developments than are higher rated debt securities.  Adverse publicity
and investor perceptions, whether or not based on rational analysis, and periods
of economic  uncertainty  may also affect the value and  liquidity of medium and
lower grade  corporate  debt  securities,  although  such  factors  also present
investment opportunities when prices fall below intrinsic values. Yields on debt
securities in the portfolio  that are interest rate sensitive can be expected to
fluctuate over time.

To the extent that there is no established  market for some of the medium or low
grade corporate debt securities in which the Funds may invest, there may be thin
or no  trading  in such  securities  and the  ability  of the  Adviser  to value
accurately such securities may be adversely  affected.  Further,  it may be more
difficult for a Fund to sell  securities for which no established  retail market
exists as compared with  securities  for which such a market does exist.  During
periods of reduced  market  liquidity  and in the  absence of readily  available
market quotations for medium and lower grade corporate debt securities held in a
Fund's  portfolio,  the  responsibility  of the  Adviser  to value  that  Fund's
securities  becomes more difficult and the Adviser's judgment may play a greater
role in the valuation of the Fund's securities due to a reduced  availability of
reliable objective data.

To the extent that a Fund purchases illiquid  securities or securities which are
restricted  as to  resale,  that Fund may

                                      -6-
<PAGE>
incur  additional  risks and costs.  Illiquid and  restricted  securities may be
particularly difficult to value and their disposition may require greater effort
and expense than more liquid  securities.  A Fund may be required to incur costs
in connection with the registration of restricted securities in order to dispose
of such securities,  although  pursuant to Rule 144A under the Securities Act of
1933 certain  securities  may be determined to be liquid  pursuant to procedures
adopted by the Board of  Trustees  under  applicable  guidelines.  The Funds may
invest in  securities of  distressed  issuers when the intrinsic  values of such
securities, in the opinion of the Adviser, warrant such investment.

OTHER DEBT SECURITIES   The Funds may invest in  zero-coupon,  step-coupon,  and
pay-in-kind  securities.  These  securities are debt securities that do not make
regular interest payments.  Zero-coupon and step-coupon securities are sold at a
deep discount to their face value;  pay-in-kind  securities pay interest through
the issuance of additional securities. The market value of these debt securities
generally  fluctuates  in  response  to changes in  interest  rates to a greater
degree than  interest-paying  securities  of  comparable  term and quality.  The
secondary  market value of corporate debt  securities  structured as zero coupon
securities  or  payment-in-kind  securities  may be more volatile in response to
changes in interest rates than debt securities  which pay interest  periodically
in cash. Because such securities do not pay current interest, but rather, income
is  accrued,  to the  extent  that a Fund does not have  available  cash to meet
distribution  requirements  with respect to such income, it could be required to
dispose of portfolio  securities that it otherwise  would not. Such  disposition
could be at a disadvantageous price. Investment in such securities also involves
certain tax considerations.

BARON GROWTH FUND, BARON SMALL CAP FUND and BARON iOPPORTUNITY FUND from time to
time may also purchase indebtedness and participations therein, both secured and
unsecured,  of debtor companies in  reorganization  or financial  restructuring.
Such indebtedness may be in the form of loans, notes, bonds or debentures.  When
the Funds  purchase  a  participation  interest  they  assume  the  credit  risk
associated with the bank or other  financial  intermediary as well as the credit
risk associated with the issuer of any underlying debt instrument. The Funds may
also purchase trade and other claims against,  and other  unsecured  obligations
of, such debtor  companies,  which  generally  represent money due a supplier of
goods or services to such company.  Some debt securities  purchased by the Funds
may have very long  maturities.  The length of time remaining  until maturity is
one factor the Adviser  considers in purchasing a particular  indebtedness.  The
purchase of indebtedness of a troubled  company always involves a risk as to the
creditworthiness  of the issuer and the  possibility  that the investment may be
lost. The Adviser believes that the difference between perceived risk and actual
risk creates the opportunity for profit which can be realized  through  thorough
analysis.  There are no established markets for some of this indebtedness and it
is less liquid than more heavily traded  securities.  Indebtedness of the debtor
company to a bank are not  securities of the banks issuing or selling them.  The
Funds may  purchase  loans from  national and state  chartered  banks as well as
foreign  ones.  The  Funds  may  invest in  senior  indebtedness  of the  debtor
companies,  although on occasion subordinated indebtedness may also be acquired.
The Funds may also invest in distressed  first  mortgage  obligations  and other
debt secured by real property.  The Funds do not currently  anticipate investing
more than 5% of their respective assets in trade and other claims.

The Funds may enter into  repurchase  agreements  with certain banks or non-bank
dealers. In a repurchase agreement the Fund buys a security at one price, and at
the time of sale,  the seller agrees to  repurchase  that security at a mutually
agreed upon time and price. Repurchase agreements could involve certain risks in
the event of the failure of the seller to repurchase  the  securities as agreed,
which  may  cause a fund to  suffer a loss,  including  loss of  interest  on or
principal of the security,  and costs  associated  with delay and enforcement of
the repurchase  agreement.  Repurchase  agreements  with a duration of more than
seven days are considered illiquid securities.

As a form of borrowing,  the Funds may engage in reverse  repurchase  agreements
with  certain  banks or non-bank  dealers,  where the Fund sells a security  and
simultaneously  agrees to buy it back later at a mutually  agreed upon price. To
the extent a Fund engages in reverse  repurchase  agreements  it will maintain a
segregated account  consisting of liquid assets or highly marketable  securities
to cover its obligations.  Reverse repurchase  agreements may expose the Fund to
greater fluctuations in the value of its assets.

                                      -7-
<PAGE>
OPTIONS TRANSACTIONS AND SWAPS
- ------------------------------

BARON ASSET FUND may write  (sell)  covered call options or purchase put options
on equity and/or debt  securities.  BARON GROWTH FUND,  BARON SMALL CAP FUND and
BARON  iOPPORTUNITY  FUND and may write  (sell) put and covered call options and
purchase put and call options on equity  and/or debt  securities.  The Funds may
also enter into  equity swap  transactions.  All calls sold by the Funds must be
"covered"  (i.e.,  a Fund must own the  underlying  securities) or must meet the
asset  segregation   requirements  described  below  as  long  as  the  call  is
outstanding.  Even though a Fund will receive the option premium to help protect
it against  loss, a call sold by a Fund exposes that Fund during the term of the
option to possible loss of  opportunity  to realize  appreciation  in the market
price of the underlying  security or instrument and may require the Fund to hold
a security or instrument which it might otherwise have sold.

A put option gives the purchaser of the option,  upon payment of a premium,  the
right to sell,  and the writer  the  obligation,  when  exercised,  to buy,  the
underlying  security,  at the exercise  price. A call option,  upon payment of a
premium,  gives the  purchaser of the option the right to buy, and the seller if
exercised,  the  obligation  to sell,  the  underlying  security at the exercise
price.  An American style put or call option may be exercised at any time during
a fixed period while a European  style put or call option may be exercised  only
upon expiration or during a fixed period prior thereto, and the Funds may engage
in either style option.  The Funds are authorized to engage in transactions with
respect to exchange-listed options, over-the-counter options ("OTC options") and
other derivative investments.  Exchange-listed options are issued by a regulated
intermediary such as the Options Clearing Corporation ("OCC"),  which guarantees
the  performance  of the  obligations  of  the  parties  to  such  options.  The
discussion  below uses the OCC as an example,  but is also  applicable  to other
financial intermediaries.

Rather than taking or making  delivery of the  underlying  security  through the
process of exercising the option,  listed options are usually closed by entering
into offsetting purchase or sale transactions that do not result in ownership of
the new option.  The Fund's  ability to close out its position as a purchaser or
seller of an OCC or  exchange-listed  put or call option is dependent,  in part,
upon the  liquidity of the option  market.  Among the  possible  reasons for the
absence of a liquid option market on an exchange are: (i)  insufficient  trading
interest in certain  options;  (ii)  restrictions on transactions  imposed by an
exchange;  (iii) trading halts,  suspensions or other restrictions  imposed with
respect to  particular  classes or series of  options or  underlying  securities
including  reaching  daily  price  limits;   (iv)  interruption  of  the  normal
operations of the OCC or an exchange;  (v)  inadequacy  of the  facilities of an
exchange or OCC to handle current trading  volume;  or (vi) a decision by one or
more exchanges to discontinue  the trading of options (or a particular  class or
series of options),  in which event the relevant  market for that option on that
exchange  would cease to exist,  although  outstanding  options on that exchange
would generally  continue to be exercisable in accordance with their terms.  The
hours of trading for listed options may not coincide with the hours during which
the  underlying  instruments  are traded.  To the extent that the option markets
close before the markets for the underlying  instruments,  significant price and
rate movements can take place in the underlying markets that cannot be reflected
in the option markets.

OTC  options  are  purchased  from  or  sold to  securities  dealers,  financial
institutions  or  other  parties  ("Counterparties")  through  direct  bilateral
agreement with the Counterparty.  In contrast to exchange-listed  options, which
generally have standardized terms and performance mechanics, all the terms of an
OTC option are  negotiated by the parties.  The Funds expect  generally to enter
into OTC options that have cash  settlement  provisions,  although  they are not
required to do so.

Equity swap transactions are entered into with financial  institutions through a
direct agreement with the Counterparty,  generally an ISDA Master Agreement, the
specific terms of which are negotiated by the parties.  The Funds may use equity
swaps, or other derivative  instruments,  for hedging purposes against potential
adverse movements in security prices or for non-hedging purposes such as seeking
to  enhance  return.  The  Funds may be

                                      -8-

<PAGE>
required  to post  collateral  for such transactions.

Unless the  parties  provide  for it,  there is no central  clearing or guaranty
function in an OTC option or derivatives,  including swaps. As a result,  if the
Counterparty fails to make or take delivery of the security, or other instrument
or fails to make a cash settlement payment due in according with the option, the
Fund will lose any  premium  it paid for the  option as well as any  anticipated
benefit of the transaction. The Adviser must assess the creditworthiness of each
Counterparty to determine the likelihood that the terms of the OTC option or the
derivative will be satisfied.  The Funds will engage in OTC option  transactions
and derivatives only with previously approved  Counterparties.  The staff of the
SEC  currently  takes the position  that OTC options  purchased  by a fund,  and
portfolio securities  "covering" the amount of the fund's obligation pursuant to
an OTC  option  sold by it (the  cost of the  sell-back  plus  the  in-the-money
amount,  if any,) are  illiquid,  and are  subject  to a fund's  limitations  on
investments in illiquid securities.

USE OF SEGREGATED  AND OTHER  SPECIAL ACCOUNTS
- ----------------------------------------------

Many hedging  transactions,  in addition to other  requirements,  require that a
Fund  segregate  liquid high grade assets with its  custodian to the extent Fund
obligations  are not otherwise  "covered"  through  ownership of the  underlying
security or instrument.  In general, either the full amount of any obligation by
the Fund to pay or deliver  securities or assets must be covered at all times by
the  securities  or  instruments  required to be delivered,  or,  subject to any
regulatory  restrictions,  an amount of cash or liquid high grade  securities at
least equal to the current amount of the obligation  must be segregated with the
custodian. The segregated assets cannot be sold or transferred unless equivalent
assets are substituted in their place or it is no longer  necessary to segregate
them.  For  example,  a call option  written by a Fund will require that Fund to
hold the  securities  subject to the call (or  securities  convertible  into the
needed securities without additional  consideration) or to segregate liquid high
grade  securities  sufficient to purchase and deliver the securities if the call
is exercised. A put option written requires that the Fund segregate liquid, high
grade assets equal to the exercise price. Hedging transactions may be covered by
other means when consistent with applicable regulatory policies.  The Funds have
adopted investment restrictions, described below, which are fundamental policies
of the  Funds  and  may  not be  changed  without  the  approval  of the  Funds'
shareholders.  Unless otherwise noted, all percentage  restrictions are measured
as of the time of the investment after giving effect to the transaction.

INVESTMENT RESTRICTIONS
- -----------------------

BARON ASSET FUND may not:

1.   Issue senior securities  except in connection with any permitted  borrowing
     where the Fund is deemed to have issued a senior security;
2.   Borrow  money  except  from banks for  temporary  purposes in an amount not
     exceeding 5% of the Fund's net assets at the time the borrowing is made;
3.   Purchase  securities on margin except for short-term  credit  necessary for
     the clearance of portfolio transactions;
4.   Make short sales of  securities,  maintain a short  position,  or write put
     options;
5.   Purchase or sell commodities or commodity contracts;
6.   Purchase or sell real estate or real estate mortgage loans or invest in the
     securities of real estate  companies  unless such  securities  are publicly
     traded;
7.   Invest in oil, gas or mineral-related programs or leases;
8.   Invest more than 25% of the value of its total assets in any one  industry,
     except investments in U.S. government securities;
9.   Purchase the securities of any one issuer other than the U.S. government or
     any of  its  agencies  or  instrumentalities,  if  immediately  after  such
     purchase  more than 5% of the value of the  Fund's  total  assets  would be

                                      -9-

<PAGE>
     invested  in such  issuer  or the  Fund  would  own  more  than  10% of the
     outstanding voting securities of such issuer,  except that up to 25% of the
     value of the Fund's total assets may be invested  without  regard to the 5%
     and 10% limitations;
10.  Invest more than 10% of the value of the Fund's total assets in  securities
     which are  restricted or illiquid or in repurchase  agreements  maturing or
     terminable in more than seven days;
11.  Invest in  securities  of other open end  investment  companies  (except in
     connection with a merger,  consolidation or other reorganization and except
     for the purchase of shares of registered open-end money market mutual funds
     if double advisory fees are not assessed), invest more than 5% of the value
     of the Fund's total assets in more than 3% of the total outstanding  voting
     securities of another  investment  company or more than 10% of the value of
     the Fund's total assets in securities issued by other investment companies;
12.  Participate  on a joint,  or a joint and several,  basis in any  securities
     trading account;
13.  Underwrite securities of other issuers;
14.  Make  loans to other  persons,  except up to 10% of the value of the Fund's
     total assets in loans of portfolio securities and except to the extent that
     the  purchase  of  publicly  traded  debt  securities  and the  entry  into
     repurchase  agreements in accordance with the Fund's  investment  objective
     and policies may be deemed to be loans;
15.  Mortgage,  pledge or hypothecate any portfolio  securities owned or held by
     the  Fund,  except  as  may  be  necessary  in  connection  with  permitted
     borrowing;
16.  Invest more than 5% of its total  assets in  warrants  to  purchase  common
     stock;
17.  Purchase  securities  of any issuer with a record of less than three years'
     continuous operation, including predecessors,  except obligations issued or
     guaranteed by the U.S. Government or its agencies or instrumentalities,  if
     such purchase  would cause the  investments of the Fund in all such issuers
     to exceed 5% of the value of the total assets of the Fund; or
18.  Purchase  or retain  any  securities  of an issuer  any of whose  officers,
     directors,  trustees  or  security  holders is an officer or Trustee of the
     Fund,  or is a member,  officer or  Director of the  Adviser,  if after the
     purchase of the  securities  of such issuer by the Fund one or more of such
     persons owns beneficially  more than of 1% of the shares or securities,  or
     both,  all taken at market value,  of such issuer,  and such persons owning
     more than of 1% of such shares or securities together own beneficially more
     than 5% of such shares or securities, or both, all taken at market value.

BARON GROWTH FUND, BARON SMALL CAP FUND and BARON iOPPORTUNITY FUND may not:

1.   Issue senior  securities  or borrow money or utilize  leverage in excess of
     25% of its net assets (plus 5% for emergency or other short-term  purposes)
     from banks from time to time.
2.   Except as  described  in the  prospectus  or SAI,  engage  in  short-sales,
     purchase securities on margin or maintain a net short position.
3.   Purchase or sell  commodities  or  commodity  contracts  except for hedging
     purposes and in conformity  with  regulations  of the  Commodities  Futures
     Trading  Commission  such that the Fund would not be considered a commodity
     pool.
4.   Purchase  or sell oil and gas  interests  or real  estate.  Debt or  equity
     securities  issued by  companies  engaged  in the oil,  gas or real  estate
     business  are  not  considered  oil or gas  interests  or real  estate  for
     purposes  of this  restriction.  First  mortgage  loans  and  other  direct
     obligations  secured by real  estate  are not  considered  real  estate for
     purposes of this restriction.
5.   Invest more than 25% of the value of its total assets in any one  industry,
     except investments in U.S. government securities.
6.   Purchase the securities of any one issuer other than the U.S. government or
     any of  its  agencies  or  instrumentalities,  if  immediately  after  such
     purchase  more than 5% of the value of the  Fund's  total  assets  would be
     invested  in such  issuer  or the  Fund  would  own  more  than  10% of the
     outstanding voting securities of such issuer,  except that up to 25% of the
     value of the Fund's total assets may be invested  without  regard to the 5%
     and 10% limitations.

                                      -10-
<PAGE>
7.   Underwrite securities of other issuers.
8.   Make loans,  except to the extent the purchase of debt  obligations  of any
     type (including  repurchase  agreements and corporate commercial paper) are
     considered loans and except that the Fund may lend portfolio  securities to
     qualified   institutional   investors  in  compliance   with   requirements
     established from time to time by the Securities and Exchange Commission and
     the securities exchanges where such securities are traded.
9.   Participate  on a joint,  or a joint and several,  basis in any  securities
     trading account.
10.  Mortgage,  pledge  or  hypothecate  any of  its  assets,  except  as may be
     necessary in connection  with options,  loans of portfolio  securities,  or
     other permitted borrowings.
11.  Purchase  securities  of any issuer with a record of less than three years'
     continuous operations, including predecessors, except obligations issued or
     guaranteed by the U.S. government or its agencies or instrumentalities,  if
     such purchase  would cause the  investments of the Fund in all such issuers
     to exceed 5% of the value of the total assets of the Fund.
12.  Invest more than 15% of its assets in  restricted  or illiquid  securities,
     including repurchase agreements maturing in more than seven days.

As a non-fundamental  policy,  BARON GROWTH FUND, BARON SMALL CAP FUND and BARON
iOPPORTUNITY FUND will not:

1.   Invest in securities of other registered  investment  companies  (except in
     connection with a merger,  consolidation or other reorganization and except
     for the  purchase of shares of  registered  open-end  money market funds if
     double advisory fees are not assessed), invest more than 5% of the value of
     the Fund's  total  assets in more than 3% of the total  outstanding  voting
     securities of another  investment  company or more than 10% of the value of
     the Fund's total assets in securities issued by other investment companies.
2.   Invest more than 5% of its total  assets in  warrants  to  purchase  common
     stock.
3.   Purchase the  securities  of any issuer of which any officer or director of
     the  Fund  owns 1/2 of 1% of the  outstanding  securities  or in which  the
     officers and directors in the aggregate own more than 5%.

The Securities  and Exchange  Commission  currently  requires that the following
conditions be met whenever  portfolio  securities are loaned:  (1) the Fund must
receive at least 100% cash collateral  from the borrower;  (2) the borrower must
increase such collateral whenever the market value of the securities rises above
the level of such collateral; (3) the Fund must be able to terminate the loan at
any time; (4) the Fund must receive reasonable  interest on the loan, as well as
any dividends, interest or other distributions on the loaned securities, and any
increase in market value; (5) the Fund may pay only reasonable custodian fees in
connection  with the loan; and (6) while voting rights on the loaned  securities
may pass to the borrower, the Fund's trustees must terminate the loan and regain
the right to vote the  securities if a material  event  adversely  affecting the
investment occurs. These conditions may be subject to future modifications.  The
portfolios of the Funds are valued every day the New York Stock Exchange is open
for trading.

With respect to investments in warrants,  the Funds will not invest in excess of
2% of the value of the  particular  Fund's net assets in  warrants  that are not
listed on the New York or American  Stock  Exchanges.  Warrants are  essentially
options to purchase equity  securities at a specified price valid for a specific
period of time.  Their prices do not necessarily  move parallel to the prices of
the underlying securities.  Warrants have no voting rights, receive no dividends
and have no rights with respect to the assets of the issuer.

TURNOVER RATE
- -------------

The adviser  expects that the average annual  turnover rate of the portfolios of
BARON  ASSET FUND and BARON GROWTH FUNd should not exceed 50% and of BARON SMALL
CAP FUND and BARON  iOPPORTUNITY  FUND should not exceed 100%. The turnover rate
fluctuates depending on market conditions.  The turnover rates for the Funds for
the past two years are:

                                      -11-
<PAGE>
                  FUND                     1999      1998
                  ----                     ----      ----

                  BARON  ASSET FUND         16%       23%
                  BARON GROWTH FUND         53%       40%
                  BARON SMALL CAP FUND      43%       60%


MANAGEMENT OF THE FUNDS
- -----------------------

BOARD OF TRUSTEES AND OFFICERS
- ------------------------------

The Board of Trustees  oversees the  management  of the Funds.  The Trustees and
executive officers of the Funds and their principal  occupations during the last
five years are set forth below.

<TABLE>
<CAPTION>
                                POSITION HELD                     PRINCIPAL OCCUPATION(S)
NAME AND ADDRESS         AGE    WITH THE FUND                     DURING PAST FIVE YEARS
<S>                      <C>    <C>                               <C>
- --------------------     ---    -------------                     ---------------------------------------------
Ronald Baron *+           56    Chairman, CEO, Chief              Chairman, CEO, and Director of: Baron
767 Fifth Avenue                Investment Officer and Trustee    Capital, Inc. (1982-Present), Baron Capital
New York, NY 10153                                                Management, Inc. (1983-Present), Baron
                                                                  Capital Group, Inc. (1984-Present),
                                                                  BAMCO, Inc. (1987-Present).

Norman S. Edelcup^        64    Trustee                           Senior Vice President, Item Processing of
244 Atlantic Isle                                                 America (1999-Present) (a subsidiary of The
North Miami, FL 33160                                             Intercept Group); Chairman, Item
                                                                  Processing of America (1989-1999) (a
                                                                  financial institution service bureau);
                                                                  Director, Valhi, Inc. (1975-Present)
                                                                  (diversified company); Director, Artistic
                                                                  Greetings, Inc. (1985-1998).

Mark M. Feldman           48    Trustee                           President and CEO, Cold Spring Group, Inc.
444 Madison Ave., Ste 703                                         (1993-Present) (reorganization and
New York, NY 10020                                                restructuring consulting); Chief
                                                                  Restructuring Officer, various companies
                                                                  (1995-Present) (case and litigation
                                                                  management); Director, SNL Securities, Inc.
                                                                  (1997-Present) (publisher of data bases and
                                                                  manager of a bank and thrift portfolio);
                                                                  Trustee, Aerospace Creditors Liquidating
                                                                  Trust (1993-1997) (administered and liquidated assets).

Irwin Greenberg^          68    Trustee                           Chairman (1994-1997) and Director (1991-
4303 W.  Wyndemere Circle                                         Present), Lehigh Valley Hospital Board;
Schnecksville, PA 18078                                           Retail Consultant, (1990-Present); Director,
                                                                  Cedar Crest College (1990-1999); Director,
                                                                  Henry Lehr & Co., Inc. (1996-Present)
                                                                  (insurance); President and CEO, Hess's
                                                                  Department Stores (1976-1990).
</TABLE>
                                      -12-
<PAGE>

<TABLE>
<CAPTION>
                                POSITION HELD                     PRINCIPAL OCCUPATION(S)
NAME AND ADDRESS         AGE    WITH THE FUND                     DURING PAST FIVE YEARS
<S>                      <C>    <C>                               <C>
- --------------------     ---    -------------                     ---------------------------------------------
Clifford Greenberg        40    Vice President                    Vice President of:  Baron Capital, Inc.,
767 Fifth Avenue                                                  Baron Capital Group, Inc., BAMCO, Inc.,
New York, NY 10153                                                (1997-Present); Genera Partner, HPB
                                                                  Associates, LP (1984-1996) (investment partnership).

Linda S. Martinson*+      45    Vice President, Secretary and     General Counsel and Secretary of:  Baron
767 Fifth Avenue                Trustee                           Capital, Inc. (1983-Present), BAMCO, Inc.
New York, NY 10153                                                (1987-Present), Baron Capital Group, Inc.
                                                                  (1984-Present), Baron Capital Management,
                                                                  Inc. (1983-Present).

Charles N. Mathewson      71    Trustee                           Chairman, International Game Technology
9295 Prototype Road                                               (1986-Present) (manufacturer of
Reno, NV 89511                                                    microprocessor-controlled gaming machines
                                                                  and monitoring systems).

Harold W. Milner          65    Trustee                           Retired; President and CEO, Kahler Realty
2293 Morningstar Drive                                            Corporation (1985-1997) (hotel ownership
Park City, UT 84060                                               and management).

Raymond Noveck+           55    Trustee                           Private Investor (1999-Present); President,
31 Karen Road                                                     The Medical Information Line, Inc. (1997-
Waban, MA 02168                                                   1998) (health care information); President,
                                                                  Strategic Systems, Inc. (1990-1997) (health
                                                                  care information); Director, Horizon/CMS
                                                                  Healthcare Corporation (1987-1997).

Susan Robbins             45    Vice President                    Senior Analyst, Vice President and Director
767 Fifth Avenue                                                  of:  Baron Capital, Inc. (1982-Present),
New York, NY 10153                                                Baron Capital Management, Inc. (1984-
                                                                  Present).

Morty Schaja*             45    President, Chief                  President and Chief Operating Officer of Baron
767 Fifth Avenue                Operating Officer and Trustee     Capital Inc. (1999-Present),Senior Vice President
New York, NY 10153                                                and Chief Operating Officer of Baron Capital, Inc.
                                                                  (1997-1999), Managing Director, Vice
                                                                  President, Baron Capital, Inc. (1991-
                                                                  Present), and Director, Baron Capital Group,
                                                                  Inc., Baron Capital Management, Inc., and
                                                                  BAMCO, Inc. (1997-Present).

David A. Silverman, MD    49    Trustee                           Physician and Faculty, New York
239 Central Park West                                             University School of Medicine (1976-
New York, NY 10024                                                Present).

</TABLE>
                                      -13-

<PAGE>

<TABLE>
<CAPTION>
                                POSITION HELD                     PRINCIPAL OCCUPATION(S)
NAME AND ADDRESS         AGE    WITH THE FUND                     DURING PAST FIVE YEARS
<S>                      <C>    <C>                               <C>
- --------------------     ---    -------------                     ---------------------------------------------
Peggy C. Wong             39    Treasurer and Chief Financial     Treasurer and Chief Financial Officer of:
767 Fifth Avenue                Officer                           Baron Capital, Inc., Baron Capital Group,
New York, NY 10153                                                Inc., BAMCO, Inc. and Baron Capital
                                                                  Management, Inc. (1987-Present).
</TABLE>
________________________________________________________________________________

*    Trustees  deemed  to be  "interested  persons"  of the Fund as that term is
     defined in the Investment Company Act of 1940.
+    Members of the Executive  Committee,  which is empowered to exercise all of
     the powers,  including the power to declare dividends, of the full Board of
     Trustees when the full Board of Trustees is not in session.
^    Members of the Audit Committee.


The Trustees of the Funds'  received the following  compensation  from the Funds
for the fiscal year ended September 30, 1999:

                   AGGREGATE COMPENSATION        TOTAL COMPENSATION
NAME               FROM THE FUNDS                FROM THE FUNDS PAID TO TRUSTEES
- ----               ----------------------        -------------------------------

Ronald Baron             $0                       $0
Norman Edelcup           $15,000                  $15,000
Linda S. Martinson       $0                       $0
Charles Mathewson        $ 2,500                  $ 2,500
Mark Feldman             $12,500                  $12,500
Irwin Greenberg          $15,000                  $15,000
Harold Milner            $12,500                  $12,500
Raymond Noveck           $12,500                  $12,500
Morty Schaja             $0                       $0
David Silverman          $12,500                  $12,500
Daniel Tisch             $143                     $143

TOTALS                   $82,643                  $82,643


PRINCIPAL HOLDERS OF SHARES
- ---------------------------

As of December 31, 1999, the following persons were known to the Funds to be the
record or beneficial owners of more than 5% of the outstanding securities of the
Funds:

                                   BARON ASSET     BARON GROWTH      BARON SMALL
                                   FUND            FUND              CAP FUND
                                   -----------     ------------      -----------

Charles Schwab & Co., Inc.         36.7%           35.0%             44.9%
National Financial Services Corp.  13.1%           25.8%             24.0%

All  of  the  above  record  owners  are  brokerage  firms  or  other  Financial
Institutions that hold stock for the benefit of their respective  customers.  As
of December 31, 1999,  all of the officers and Trustees of BARON ASSET FUND as a
group  beneficially  owned  directly or  indirectly  0.12% of BARON ASSET FUND's
outstanding  shares 0.43% of BARON GROWTH FUND's outstanding shares and 0.38% of
BARON SMALL CAP FUND's outstanding shares.

                                      -14-
<PAGE>
INVESTMENT ADVISER
- ------------------

The investment  adviser to the Funds is BAMCO, Inc. (the "Adviser"),  a New York
corporation with its principal offices at 767 Fifth Avenue, New York, N.Y. 10153
and a subsidiary of Baron Capital Group, Inc.  ("BCG").  Mr. Ronald Baron is the
controlling  stockholder  of BCG and is BAMCO's chief  investment  officer.  Mr.
Baron has over 30 years of experience  as a Wall Street  analyst and has managed
money  for  others  for over 25 years.  He has been a  participant  in  Barron's
Roundtable  and has been a featured guest on Wall Street Week, CNN and CNBC/FNN.
Pursuant  to  separate  Advisory   Agreements  with  each  Fund  (the  "Advisory
Agreement"),  the Adviser furnishes continuous  investment advisory services and
management to each Fund,  including making the day-to-day  investment  decisions
and arranging  portfolio  transactions for the Funds subject to such policies as
the Trustees  may  determine.  BARON ASSET FUND  incurred  advisory  expenses of
$59,460,701  for the year ended  September  30, 1999;  $45,074,474  for the year
ended September 30, 1998; and $18,573,064 for the year ended September 30, 1997.
BARON GROWTH FUND incurred  advisory  expenses of $3,534,481  for the year ended
September  30, 1999;  $4,310,057  for the year ended  September  30,  1998;  and
$2,828,391 for the year ended September 30, 1997.  BARON SMALL CAP FUND incurred
advisory  expenses of  $5,457,810  for the year ended  September  30, 1999;  and
$4,041,420  for the year ended  September 30, 1998, its first year of operation.
BARON iOPPORTUNITY FUND did not incur any advisory fees in 1999.

Under the  Advisory  Agreements,  the  Adviser,  at its own  expense and without
reimbursement  from the Funds,  furnishes  office space and all necessary office
facilities,  equipment and executive  personnel for managing the Funds, and pays
the salaries and fees of all officers and Trustees who are interested persons of
the Adviser.

The Funds pay all operating and other  expenses not borne by the Adviser such as
audit,  accounting and legal fees;  custodian fees;  expenses of registering and
qualifying its shares with federal and state securities commissions; expenses in
preparing  shareholder  reports  and  proxy  solicitation  materials;   expenses
associated with each Fund's shares such as dividend  disbursing,  transfer agent
and registrar fees; certain insurance expenses; compensation of Trustees who are
not  interested  persons  of  the  Adviser;  and  other  miscellaneous  business
expenses.  The  Funds  also pay the  expenses  of  offering  the  shares of each
respective  Fund,   including  the  registration  and  filing  fees,  legal  and
accounting fees and costs of printing the prospectus and related documents. Each
Fund  also  pays all  taxes  imposed  on it and all  brokerage  commissions  and
expenses incurred in connection with its portfolio transactions.

The  Adviser  utilizes  the  staffs  of BCG and  its  subsidiary  Baron  Capital
Management, Inc. ("BCM") to provide research.  Directors,  officers or employees
of the Adviser  and/or its  affiliates may also serve as officers or Trustees of
the  Funds.  BCM  is an  investment  adviser  to  institutional  and  individual
accounts. Clients of BCM have investment objectives which may vary only slightly
from those of each other and of the Funds.  BCM invests  assets in such clients'
accounts  and in the  accounts  of  principals  and  employees  of BCM  and  its
affiliates in investments  substantially similar to, or the same as, those which
constitute the principal  investments of the Funds. When the same securities are
purchased for or sold by a Fund and any of such other accounts, it is the policy
of the  Adviser  and  BCM to  allocate  such  transactions  in a  manner  deemed
equitable by the Adviser,  and for the  principals and employees of the Adviser,
BCM, and affiliates to take either the same or least favorable price of the day.
All trading by  employees  is subject to the Code of Ethics of the Funds and the
Adviser. In certain circumstances the Adviser may make investments for the Funds
that  conflict  with  investments  being made by BCM.  The Adviser may also make
investment  decisions  for a Fund  that are  inconsistent  with  the  investment
decisions for another Fund.

Each  Advisory  Agreement  provides that the Fund may use "Baron" as part of its
name for so long as the Adviser serves as investment  adviser to that Fund. Each
Fund  acknowledges that the word "Baron" in its name is derived from the name of
the entities  controlling,  directly and indirectly,  the Adviser,  which derive
their name from Ronald Baron;  that such name is the property of the Adviser and
its affiliated  companies for copyright  and/or other purposes;  and that if for
any reason the Adviser ceases to be that Fund's  investment  adviser,  that Fund
will promptly  take all steps  necessary to change its name to one that does not
include "Baron," absent the Adviser's written consent.

Each  Advisory  Agreement  provides  that the Adviser shall have no liability to
that Fund or its shareholders for any

                                      -15-
<PAGE>
error of  judgment  or  mistake  of law or for any loss  suffered  by that Fund;
provided, that the Adviser shall not be protected against liabilities arising by
virtue of  willful  misfeasance,  bad  faith or gross  negligence,  or  reckless
disregard of the Adviser's obligations under the Advisory Agreement.

The Advisory Agreements were approved by a majority of the Trustees, including a
majority of the  Trustees who are not  "interested  persons" ( as defined by the
Investment  Company  Act of 1940  ("1940 Act" )) for BARON ASSET FUND on May 11,
1987, for BARON GROWTH FUND on October 21, 1994, and for BARON SMALL CAP FUND on
July 29, The  Advisory  Agreements  must  normally be  approved  annually by the
Trustees or a majority of the particular  Fund's shares and by a majority of the
Trustees who are not parties to the Advisory  Agreement or interested persons of
any such party.  With  respect to BARON ASSET FUND,  BARON GROWTH FUND and BARON
SMALL CAP FUND, such approval for 1999 was given at a Board of Trustees  meeting
held on April 26, 1999. The Advisory  Agreement for BARON  iOPPORTUNITY FUND was
approved by the Board of Trustees on January 18, 1999 for an initial term of two
years.

Each Advisory  Agreement is terminable  without penalty by either the Fund (when
authorized by majority vote of either its outstanding shares or the Trustees) or
the  Adviser  on  60  days'  written  notice.   Each  Advisory  Agreement  shall
automatically terminate in the event of its "assignment" (as defined by the 1940
Act).

SERVICE AGREEMENTS
- ------------------

The Funds have  agreements  with  various  service  providers  pursuant to which
administrative  services  such  as  record  keeping,  reporting  and  processing
services are provided to the Funds.

DISTRIBUTOR
- -----------

The Funds have a  distribution  agreement  with  Baron  Capital,  Inc.,  ("Baron
Capital" or the  "Distributor")  a New York corporation and a subsidiary of BCG,
located at 767 Fifth Avenue,  New York, N.Y. 10153.  Baron Capital is affiliated
with the  Adviser.  The  Distributor  acts as the  agent  for the  Funds for the
continuous public offering of their shares on a best efforts basis pursuant to a
distribution  plan  adopted  under Rule 12b-1 under the 1940 Act  ("Distribution
Plan").

DISTRIBUTION PLAN
- -----------------

The Distribution Plan authorizes the Funds to pay the Distributor a distribution
fee equal on an annual  basis to 0.25% of the Funds'  average  daily net assets.
The fee was reduced to 0.25% from 0.50% on July 12, 1993. The  distribution  fee
is paid to the  Distributor  in  connection  with  its  activities  or  expenses
primarily intended to result in the sale of shares,  including,  but not limited
to,  compensation  to  registered  representatives  or  other  employees  of the
Distributor;  compensation  to and expenses of employees of the  Distributor who
engage in or  support  the  distribution  of shares or who  service  shareholder
accounts; telephone expenses;  preparing,  printing and distributing promotional
and advertising  material;  preparing,  printing and distributing the Prospectus
and  reports  to other  than  current  shareholders;  compensation  for  certain
shareholder services;  and commissions and other fees to broker-dealers or other
persons  (excluding  banks)  who have  introduced  investors  to the  Fund.  The
distribution fee is payable to the Distributor regardless of the actual expenses
incurred,  although  the  actual  expenses  incurred  by  the  Distributor  have
historically exceeded the distribution fees received by the Distributor.

If and to the extent the expenses  listed below are  considered  to be primarily
intended to result in the sale of shares within the meaning of Rule 12b-1,  they
are not included in the limits above:  (a) the costs of  preparing,  printing or
reproducing and mailing all required  reports and notices to  shareholders;  (b)
the costs of preparing, printing or reproducing and mailing all proxy statements
and proxies (whether or not such proxy materials include any item relating to or
directed  toward the sale of shares);  (c) the costs of  preparing,  printing or
reproducing   and  mailing  all   prospectuses   and  statements  of  additional
information;  (d) all legal and accounting  fees relating to the  preparation of
any such  report,  prospectus,  and proxy  materials;  (e) all fees and expenses
relating  to the  qualification  of the  Funds  and/or  their  shares  under the
securities or "Blue Sky" laws of any  jurisdiction;  (f) all fees under the 1940
Act

                                      -16-

<PAGE>
and  the  Securities  Act  of  1933,  including  fees  in  connection  with  any
application for exemption relating to or directed toward the sale of Shares; (g)
all fees and  assessments,  if any, of the Investment  Company  Institute or any
successor  organization,  whether or not its  activities are designed to provide
sales assistance; (h) all costs of preparing and mailing confirmations of shares
sold or redeemed and reports of share  balances;  (i) all costs of responding to
telephone or mail inquiries of shareholders or prospective shareholders.

The Distribution Plan requires that while it is in effect the Distributor report
in writing, at least quarterly, the amounts of all expenditures, the identity of
the  payees  and the  purposes  for which  such  expenditures  were made for the
preceding fiscal quarter.

For the fiscal year ended September 30, 1999, BARON ASSET FUND paid distribution
fees to the Distributor of $14,865,186  (an additional  $231,170 was absorbed by
the  Distributor  and/or its affiliates and not paid by the Fund pursuant to the
0.25%  limitation);  BARON GROWTH FUND paid distribution fees to the Distributor
of $883,621 (an  additional  $1,308 was absorbed by the  Distributor  and/or its
affiliates and not paid by the Fund pursuant to the 0.25% limitation); and BARON
SMALL CAP FUND paid  distribution  fees to the  Distributor  of  $1,364,454  (an
additional $49,300 was absorbed by the Distributor and/or its affiliates and not
paid by the Fund pursuant to the 0.25%  limitation).  The distribution  expenses
incurred by the  Distributor  for the fiscal year ended  September 30, 1999 with
respect to the three Funds in the aggregate were as follows:

     (a)  Advertising                                          $        14,200

     (b)  printing and mailing of prospectuses                       1,213,971
          to other than current shareholders

     (c)  Compensation paid or to be paid to                        13,451,843
          broker/dealers

     (d)  Compensation paid to sales and clerical personnel          2,395,459

     (e)  Other                                                        684,218

Trustees of the Funds who were not interested persons of the Funds had no direct
or indirect  financial interest in the operation of the Distribution Plan or the
Distribution Agreement. All the interested Trustees had such an interest.

The  Distribution  Plan has  been  approved  by the  Funds'  Board of  Trustees,
including a majority of the Trustees who are not interested persons of the Funds
and who have no direct or indirect  financial  interest in the  operation of the
Distribution  Plan  or in any  agreements  related  thereto.  In  approving  the
Distribution  Plan, the Trustees  considered various factors and determined that
there is a reasonable  likelihood that the Plan will benefit the Funds and their
shareholders.  The  anticipated  benefits  include  the  following:  (i) reduced
expense  ratios due to economies of scale,  (ii) the ability to purchase  larger
blocks  of  securities,   resulting  in  decreased   expenses,   and  (iii)  the
minimization  of adverse  effects from forced sales of portfolio  securities  to
meet redemptions.

Baron Capital is authorized  to make payments to authorized  dealers,  banks and
other  financial  institutions  who have rendered  distribution  assistance  and
ongoing shareholder support services, shareholder servicing assistance or record
keeping.  Certain  states may require  that any such person be  registered  as a
dealer with such state. The Funds may execute  portfolio  transactions  with and
purchase  securities  issued by depository  institutions  that receive  payments
under the  Distribution  Plan. No  preference  will be shown in the selection of
investments for the instruments of such depository  institutions.  Baron Capital
may also retain part of the  distribution  fee as compensation  for its services
and expenses in connection  with the  distribution  of shares.  Baron  Capital's
actual  expenditures  have  and  will  continue  to  substantially   exceed  the
distribution  fee received by it. If the  Distribution  Plan is terminated,  the
Funds  will owe no  payments  to Baron  Capital  other  than any  portion of the
distribution  fee accrued  through the effective  date of  termination  but then
unpaid.

                                      -17-

<PAGE>
Unless  terminated in accordance  with its terms,  the  Distribution  Plan shall
continue in effect until,  and from year to year thereafter if, such continuance
is specifically  approved at least annually by its Trustees and by a majority of
the Trustees who are not  interested  persons of the Fund and who have no direct
or indirect  financial  interest in the operation of the Distribution Plan or in
any agreements  related  thereto,  such votes cast in person at a meeting called
for the purpose of such vote.

The Distribution Plan may be terminated at any time by the vote of a majority of
the members of the Funds'  Board of Trustees who are not  interested  persons of
the Funds and have no direct or indirect  financial interest in the operation of
the Distribution  Plan or in any agreements  related thereto or by the vote of a
majority of the outstanding  shares. The Distribution Plan may not be amended to
increase  materially the amount of payments to be made without the approval of a
majority of the shareholders. All material amendments must be approved by a vote
of the Trustees and of the Trustees who are not interested  persons of the Funds
and have no  direct or  indirect  financial  interest  in the  operation  of the
Distribution  Plan or in any  agreements  related  thereto,  such  votes cast in
person at a meeting called for the purpose of such vote.

The Glass-Steagall  Act and other applicable laws, among other things,  prohibit
banks  from  engaging  in  underwriting,  selling  or  distributing  securities.
Accordingly,  the  Distributor  will  enter into  agreements  with banks only to
provide administrative assistance.  However, changes in federal or state statues
and   regulations   as  well  as  judicial  or   administrative   decisions   or
interpretations could prevent a bank from continuing to perform all or a part of
the  contemplated  services.  If a bank  were  prohibited  from so  acting,  the
Trustees would consider what actions,  if any, would be necessary to continue to
provide efficient and effective  shareholder  services.  It is not expected that
shareholders  would  suffer any adverse  financial  consequences  as a result of
these occurrences.

BROKERAGE
- ---------

The Adviser is responsible for placing the portfolio  brokerage  business of the
Funds with the objective of obtaining the best net results for the Funds, taking
into account  prompt,  efficient and reliable  executions at a favorable  price.
Brokerage transactions for the Funds in exchange-listed  securities are effected
chiefly by or through the Adviser's  affiliate,  Baron Capital,  when consistent
with this objective and subject to the  conditions  and  limitations of the 1940
Act.  Baron  Capital  is a member  of the  National  Association  of  Securities
Dealers,  Inc., but is not a member of any securities exchange.  Transactions in
securities  that trade on NASDAQ or are  otherwise  not listed are  effected  by
broker/dealers  other  than  Baron  Capital.  The Funds do not deal  with  Baron
Capital in any portfolio transaction in which Baron Capital acts as principal.

The Funds'  Board of Trustees has adopted  procedures  pursuant to Rule 17e-1 of
the 1940 Act which are reasonably  designed to provide that the commissions paid
to Baron  Capital are  reasonable  and fair compared to the  commission,  fee or
other  remuneration  received by other  brokers in  connection  with  comparable
transactions   involving  similar  securities  being  purchased  or  sold  on  a
securities  exchange  during a comparable  period of time.  The Board reviews no
less frequently than quarterly that all transactions  effected  pursuant to Rule
17e-1  during the  preceding  quarter  were  effected  in  compliance  with such
procedures.  The Funds and the Adviser  furnish such  reports and maintain  such
records as required by Rule 17e-1.

For the fiscal year ended September 30, 1999, of the total $4,038,205  brokerage
commissions paid by BARON ASSET FUND, $2,525,589 brokerage commissions were paid
to Baron Capital.  Of the total  $642,337  brokerage  commissions  paid by BARON
GROWTH FUND,  $351,548 brokerage  commissions were paid to Baron Capital. Of the
total  $697,825  brokerage  commissions  paid by BARON SMALL CAP FUND,  $409,592
brokerage  commissions  were paid to Baron  Capital.  For the fiscal  year ended
September 30, 1998, of the total  $8,178,614  brokerage  commissions paid by the
Funds,  $5,435,764  were  paid to  Baron  Capital.  For the  fiscal  year  ended
September 30, 1997, of the total $3,307,779 brokerage  commissions paid by BARON
ASSET FUND and BARON GROWTH FUND,  $2,575,700 brokerage commissions were paid to
Baron Capital.  The brokerage  commissions  paid to Baron Capital by BARON ASSET
FUND  represent  62.5% of the aggregate  dollar amount of brokerage  commissions
paid and 62.6% of the  aggregate  dollar  amount of  transactions  involving the
payment of commissions for the 1999 fiscal year. The brokerage  commissions paid
to Baron Capital by BARON GROWTH FUND  represent  54.7% of the aggregate  dollar

                                      -18-
<PAGE>
amount of brokerage commissions paid and 62.0% of the aggregate dollar amount of
transactions  involving the payment of commissions for the 1999 fiscal year. The
brokerage  commissions  paid to Baron Capital by BARON SMALL CAP FUND  represent
58.7% of the aggregate dollar amount of brokerage  commissions paid and 55.9% of
the aggregate dollar amount of transactions involving the payment of commissions
for the 1999  fiscal  year.  The  brokerage  commissions  paid to Baron  Capital
represent 66.5% of the aggregate dollar amount of brokerage commissions paid and
59.1% of the aggregate  dollar amount of  transactions  involving the payment of
commissions  for the 1998 fiscal year. The brokerage  commissions  paid to Baron
Capital represent 77.9% of the aggregate dollar amount of brokerage  commissions
paid and 76.4% of the  aggregate  dollar  amount of  transactions  involving the
payment of  commissions  for the 1997 fiscal year.  Transactions  in which Baron
Capital acted as broker  represents  36.0% of the aggregate dollar amount of all
principal and agency transactions for BARON ASSET FUND for the 1999 fiscal year.
Transactions  in which Baron  Capital  acted as broker  represents  44.4% of the
aggregate  dollar  amount of all  principal  and agency  transactions  for BARON
GROWTH FUND for the 1999 fiscal year.  Transactions in which Baron Capital acted
as broker  represents  32.5% of the aggregate dollar amount of all principal and
agency transactions for BARON SMALL CAP FUND for the 1999 fiscal year.

Under the  Investment  Advisory  Agreements and as permitted by Section 28(e) of
the  Securities and Exchange Act of 1934, the Adviser may cause the Funds to pay
a  broker-dealer  (except Baron Capital)  which provides  brokerage and research
services  to the Adviser an amount of  commission  for  effecting  a  securities
transaction  for the Funds in excess of the amount  other  broker-dealers  would
have charged for the  transaction  if the Adviser  determines in good faith that
the greater  commission is consistent with the Funds' policies and is reasonable
in relation to the value of the brokerage and research  services provided by the
executing  broker-dealer  viewed in terms of either a particular  transaction or
the Adviser's overall responsibilities to the Funds or to its other clients. The
term  "brokerage  and  research  services"  includes  advice  as to the value of
securities, the advisability of investing in, purchasing, or selling securities,
and the  availability  of securities or of purchasers or sellers of  securities;
furnishing  analyses and reports  concerning  issuers,  industries,  securities,
economic factors and trends, portfolio strategy and the performance of accounts;
and  effecting  securities  transactions  and  performing  functions  incidental
thereto such as clearance and  settlement.  Such research and information may be
used by the Adviser or its  affiliates to supplement the services it is required
to perform pursuant to the Advisory  Agreement in serving the Funds and/or other
advisory clients of affiliates.

Broker-dealers may be willing to furnish statistical  research and other factual
information or services to the Adviser for no consideration other than brokerage
or  underwriting  commissions.  Securities  may be bought or sold  through  such
broker-dealers,  but at  present,  unless  otherwise  directed  by the Funds,  a
commission  higher  than one charged  elsewhere  will not be paid to such a firm
solely because it provided research to the Adviser. Research provided by brokers
is used for the benefit of all of the Adviser's or its  affiliates'  clients and
not solely or necessarily for the benefit of the Funds. The Adviser's investment
management  personnel  attempt to evaluate  the quality of research  provided by
brokers.  Results  of  this  effort  are  sometimes  used  by the  Adviser  as a
consideration the in the selection of brokers to execute portfolio transactions.

Baron Capital acts as broker for, in addition to the Funds,  accounts of BCM and
Baron Capital,  including accounts of principals and employees of Baron Capital,
BCM and the Adviser.  Investment decisions for the Funds for investment accounts
managed by BCM and for accounts of Baron  Capital are made  independent  of each
other in light of differing  considerations  for the various accounts.  The same
investment  decision  may,  however,  be made for two or more of the  Adviser's,
BCM's and/or Baron Capital's accounts. In such event,  simultaneous transactions
are inevitable.  Purchases and sales are averaged as to price where possible and
allocated to account in a manner deemed  equitable by the Adviser in conjunction
with BCM and Baron Capital.  This procedure could have a detrimental effect upon
the price or value of the  security  for the  Funds,  but may have a  beneficial
effect.

The investment  advisory fee that the Funds pay to the Adviser is not reduced as
a consequence of the Adviser's  receipt of brokerage and research  services.  To
the extent the Funds'  portfolio  transactions are used to obtain such services,
the  brokerage  commissions  paid by the Funds  will  exceed  those  that  might
otherwise  be paid by an  amount  that  cannot  be  presently  determined.  Such
services  would by useful and of value to the Adviser in serving  both the Funds
and other clients and,  conversely,  such services  obtained by the placement of
brokerage  business of other  clients would by useful to the Adviser in carrying
out its obligations to the Funds.

                                      -19-
<PAGE>
CUSTODIAN,  TRANSFER  AGENT  AND DIVIDEND  AGENT
- ------------------------------------------------

The Bank of New York, 100 Church Street,  New York, NY, is the custodian for the
Funds' cash and  securities.  DST Systems,  Inc.,  CT-7 Tower,  1004  Baltimore,
Kansas City, MO 64105,  is the transfer  agent and dividend agent for the Funds'
shares.  Neither  institution  assists  in  or  is  responsible  for  investment
decisions involving assets of the Funds.


REDEMPTION OF SHARES
- --------------------

The Funds expect to make all redemptions in cash, but have reserved the right to
make payment, in whole or in part, in portfolio securities. Payment will be made
other than all in cash if the Funds' Board of Trustees  determines that economic
conditions  exist  which  would make  payment  wholly in cash  detrimental  to a
particular fund's best interests.  Portfolio securities to be so distributed, if
any,  would be selected in the  discretion  of the Funds'  Board of Trustees and
priced as  described  under  "Determining  Your Share  Price"  herein and in the
Prospectus.

BARON  iOPPORTUNITY  FUND imposes a short-term  trading fee on  redemptions  and
exchanges  of its  shares  held for less  than  180  days.  The fee is 1% of the
redemption value and is deducted from the redemption proceeds. The Fund uses the
"first-in,  first-out"  method to determine the holding period, so if you bought
shares on different days, the shares  purchased first will be redeemed first for
determining  whether  the fee  applies.  The fee is retained by the Fund for the
benefit  of the  remaining  shareholders  to  offset  the  administrative  costs
associated with processing  redemptions and to offset the portfolio  transaction
and facilitate portfolio management.

The Fund waives the fee for defined contribution plans and may waive the fee for
other redemptions if it is in the best interest of the Fund


NET  ASSET VALUE
- ----------------

As more fully set forth in the Prospectus under  "Determining Your Share Price,"
the net asset value per share of each Fund is  determined as of the close of the
New York Stock  Exchange on each day that the  Exchange is open.  he Exchange is
open all week days that are not holidays,  which it announces annually. The most
recent  announcement states it will not be open on New Year's Day, Martin Luther
King, Jr.'s Day, Washington's Birthday,  Good Friday, Memorial Day, Independence
Day, Labor Day, Thanksgiving and Christmas.

Securities  traded on more than one national  securities  exchange are valued at
the last sale  price of the day as of which such  value is being  determined  as
reflected at the close of the exchange  which is the  principal  market for such
securities.

U.S. Government obligations and other debt instruments having sixty days or less
remaining until maturity are stated at amortized cost. Debt instruments having a
greater  remaining  maturity  will be valued at the  highest  bid price from the
dealer  maintaining  an active market in that security or on the basis of prices
obtained from a pricing service approved by the Board of Trustees.


TAXES
- -----

Each Fund  intends to qualify  every year as a  "regulated  investment  company"
under  Subchapter  M  of  the  Internal  Revenue  Code  of  1986  (the  "Code").
Qualification  as a regulated  investment  company relieves the Funds of Federal
income  taxes on the  portion of their net  investment  income and net  realized
capita  gains  distributed  to  shareholders.  The Funds  intend  to  distribute
virtually all of their net investment  income and net realized  capital gains at
least annually to their respective shareholders.

                                      -20-
<PAGE>
A  non-deductible  4% excise tax will be imposed on a Fund to the extent that it
does not distribute  (including  declaration of certain dividends),  during each
calendar year, (i) 98% of its ordinary  income for such calendar year,  (ii) 98%
of its capital  gain net income (the excess of short and long term  capital gain
over short and long term capital loss) for each one-year  period ending  October
31  and  (iii)  certain  other  amounts  not   distributed  in  previous  years.
Shareholders  will be taxed during each calendar year on the full amount of such
dividends  distributed  (including  certain declared dividends not actually paid
until the next calendar year).

For Federal income tax purposes,  distributions  paid from net investment income
and from any net realized  short-term  capital gains are taxable to shareholders
as  ordinary  income,   whether  received  in  cash  or  in  additional  shares.
Distributions  paid from net  capital  gains are  taxable as  long-term  capital
gains,  whether  received  in  cash  or  shares  and  regardless  of how  long a
shareholder has held the shares, and are not eligible for the dividends received
deduction.   Distributions  of  investment  income  (but  not  distributions  of
short-term or long-term capital gains) received by shareholders will qualify for
the 70% dividends  received  deduction  available to  corporations to the extent
designated by the Fund in a notice to each  shareholder.  Unless all of a Fund's
gross income constitutes dividends from domestic corporations qualifying for the
dividends  received  deduction,  a portion of the  distributions  of  investment
income to those holders of that Fund which are corporations will not qualify for
the 70%  dividends  received  deduction.  The dividends  received  deduction for
corporate  holders may be further  reduced if the shares  with  respect to which
dividends are received are treated as  debt-financed or deemed to have been held
for less than forty-six (46) days.

The Funds will send written notices to shareholders regarding the Federal income
tax status of all  distributions  made  during  each  calendar  year as ordinary
income or capital gain and the amount qualifying for the 70% dividends  received
deduction.

The foregoing  relates to Federal  income  taxation.  Distributions  may also be
subject to state and local taxes.  The Funds are  organized  as a  Massachusetts
business trust.  Under current law, so long as the Funds qualify for the Federal
income tax  treatment  described  above,  it is  believed  that they will not be
liable for any income or franchise tax imposed by Massachusetts.

Investors are urged to consult their own tax advisers  regarding the application
of Federal, state and local tax laws.


ORGANIZATION AND CAPITALIZATION
- -------------------------------

GENERAL
- -------

Baron Asset Fund is an open-end  investment  company  organized as a series fund
and  established  under  the  laws of The  Commonwealth  of  Massachusetts  by a
Declaration  of Trust  dated  February  19,1987,  as  amended.  The four  series
currently  available  are Baron Asset Fund,  Baron Growth Fund,  Baron Small Cap
Fund and Baron  iOpportunity  Fund. Shares entitle their holders to one vote per
share.  Shares have  non-cumulative  voting rights,  which means that holders of
more than 50% of the shares  voting for the  election of Trustees  can elect all
Trustees and, in such event,  the holders of the remaining shares voting for the
election  of  Trustees  will not be able to  elect  any  person  or  persons  as
Trustees.   Shares  have  no  preemptive  or   subscription   rights,   and  are
transferable.

SHAREHOLDER AND TRUSTEE LIABILITY
- ---------------------------------

Under  Massachusetts  law,  shareholders of a Massachusetts  business trust may,
under  certain  circumstances,  be held  personally  liable as partners  for the
obligations  of  the  trust.  The  Declaration  of  Trust  contains  an  express
disclaimer of  shareholder  liability for acts or obligations of the Fund or any
series  thereof.  Notice  of such  disclaimer  will  normally  be  given in each
agreement,  obligation  or  instrument  entered into or executed by the Funds or
Trustees.  The Declaration of Trust provides for  indemnification  by a Fund for
any loss  suffered by a  shareholder  as a result of an obligation of that Fund.
The Declaration of Trust also provides that a Fund shall,  upon request,  assume
the

                                      -21-
<PAGE>
defense of any claim made against any  shareholder  for an act or  obligation of
that Fund and satisfy any  judgment  thereon.  Thus,  the risk of a  shareholder
incurring  financial  loss on account  or  shareholder  liability  is limited to
circumstances in which the Fund itself would be unable to meets its obligations.
The Trustees believe that, in view of the above, the risk of personal  liability
of shareholders is remote.

The  Declaration of Trust further  provides that the Trustees will not be liable
for  errors  of  judgment  or  mistakes  of  fact  or law,  but  nothing  in the
Declaration  of trust  protects a trustee  against  liability to which he or she
would otherwise be subject by reason of willful  misfeasance,  bad faith,  gross
negligence or reckless disregard of the duties involved in the conduct of his or
her office.


OTHER INFORMATION
- -----------------

INDEPENDENT ACCOUNTANTS
- -----------------------

PricewaterhouseCoopers  LLP,  1177 Avenue of the  Americas,  New York,  New York
10036, has been selected as independent accountants of the Funds.

CALCULATIONS OF PERFORMANCE DATA
- --------------------------------

Advertisements  and other  sales  literature  for the Funds may refer to average
annual total return and actual  return.  Average annual total return is computed
by finding the average  annual  compounded  rates of return over a given  period
that would equate a  hypothetical  initial  investment to the ending  redeemable
value thereof, as follows:

                         P(1+T)^ = ERV
Where:         P  = a hypothetical initial payment of $1,000
               T  = average annual total return
               ^  = number of years
              ERV = ending redeemable value at the end of the period of a
                    hypothetical $1,000 investment made at the beginning
                    of the period

Actual return is computed by measuring  the  percentage  change  between the net
asset value of a hypothetical  $1,000 investment in the Fund at the beginning of
a period and the net asset value of that investment at the end of a period.  The
performance data used in advertisements  does not give effect to a 2% contingent
deferred sales charge that is no longer applicable.

All  performance  calculations  assume  that  dividends  and  distributions  are
reinvested  at the net asset  value on the  appropriate  reinvestment  dates and
include all recurring fees.

Computed in the manner  described above, the performance of BARON ASSET FUND has
been:

                          AVERAGE ANNUAL TOTAL RETURN        ACTUAL RETURN*
                          (PRIOR TO JANUARY 1, 1992
                          INCLUDES THE 2% CONTINGENT
                          DEFERRED SALES LOAD WHERE
                          INVESTMENT IS LESS THAN 3 YEARS)

Year ended 12/31/99                  16.28%                       16.28%

Inception(06/12/87) to 12/31/99      17.59%                      664.57%


                                      -22-

<PAGE>
Five Years Ended 12/31/99            21.78%                      167.84%

Ten Years Ended 12/31/99             16.02%                      341.99%

* Does not include the 2%contingent deferred sales load which applied only prior
  to 1/1/92.

For BARON GROWTH FUND the performance has been:

                           AVERAGE ANNUAL TOTAL RETURN       ACTUAL RETURN

Year Ended 12/31/99                  44.71%                       44.71%

Inception (01/03/95) to
Year Ended 12/31/99                  29.90%                      269.90%

For BARON SMALL CAP FUND the performance has been:

                           AVERAGE ANNUAL TOTAL RETURN       ACTUAL RETURN

Year Ended 12/31/99                  70.78%                       70.78%

Inception (10/01/97) to
Year Ended 12/31/99                  29.85%                       80.00%

Performance   results   represent  past  performance  and  are  not  necessarily
representative  of future  results.  Investment  return and principal value will
fluctuate so that shares may be worth more or less than their original cost when
redeemed.

In addition to advertising  average  annual and actual return data,  comparative
performance  information  may be used in advertising  materials about the Funds,
including data and other information from Lipper Analytical  Services,  Inc., DA
Investment Technologies, Morningstar Inc., Money, Forbes, SEI, Ibbotson, No Load
Investor,  Growth Fund Guide,  Fortune,  Barron's,  The New York Times, The Wall
Street  Journal,  Changing Times,  Medical  Economics,  Business Week,  Consumer
Digest, Dick Davis Digest,  Dickenson's  Retirement Letter, Equity Fund Outlook,
Executive Wealth Advisor,  Financial World,  Investor's  Daily,  Time,  Personal
Finance, Investment Advisor, SmartMoney,  Rukeyser,  Kiplinger's, NAPFA News, US
News,  Bottomline,  Investors Business Daily,  Bloomberg Radio, CNBC, USA Today,
1998 Mutual  Fund  Report,  Mutual  Fund  Magazine,  The  Street.com,  Bloomberg
Personal,   Worth,  Washington  Business  Journal,   Investment  News,  Hispanic
Magazine,  Institutional Investor,  Rolling Stone Magazine,  Microsoft Investor,
Individual Investor,  SmartMoney Interactive, Art & Auction, Dow Jones Newswire,
Dow Jones News, The Boston Globe,  Standard & Poor's Advisor Insight, CBS Market
Watch,  Morningstar.Net,  On Wall Street,  Los Angeles Times,  Standard & Poor's
Outlook,  Bloomberg Online, Fund Action,  Funds Net Insight,  Boston Herald, Dow
Jones Investment Advisor, Annuity.Net.com, Morningstar Fund Investor, Associated
Press,   Bloomberg  Business  News,  Standard  &  Poor's  Personal  Wealth,  The
Washington  Post,  and Crain's NY  Business.  The Fund may also use  comparative
performance data from indexes such as the Dow Jones Industrial Average, Standard
& Poor's  400,  500,  Small Cap 600,  1,500,  or Midcap  400,  Value Line Index,
Wilshire  4,500,  5000,  or Small  Cap;  NASDAQ/OTC  Composite,  New York  Stock
Exchange;  and the Russell 1000, 2000,  2500, 3000, 2000 Growth,  2000 Value, or
Midcap.  With  respect  to the  rating  services,  the Fund may use  performance
information that ranks the Fund in any of the following  categories:  all funds,
aggressive growth funds,  value funds,  mid-cap funds,  small-cap funds,  growth
funds, equity income funds, and any combination of the above listed categories.

                                      -23-

<PAGE>


                          B A R O N      F U N D S

Table I
- --------------------------------------------------------------------------------
Portfolio Market Capitalization
- --------------------------------------------------------------------------------


The Funds invest  primarily in small and medium sized  companies.  Table I ranks
the Funds'  investments by market  capitalization and displays the percentage of
the Funds' portfolios invested in each market capitalization  category. At times
the Funds  invest in  companies  with  market  capitalizations  greater  than $5
billion.  These  larger cap  companies  have  increased in value since the Funds
first  invested in them and still  offer  attractive  opportunities  for further
appreciation.



Baron Asset Fund
- --------------------------------------------------------------------------------

                                                     Equity          % of
                                                   Market Cap         Net
                   Company                       (in millions)      Assets
- ---------------------------------------------   ---------------   ----------
                              Large Capitalization
- -------------------------------------------------------------------------------
Charles Schwab Corp. ........................       $27,550       13.9%
Univision Communications, Inc. Class A                8,258        1.4
NTL, Inc. ...................................         7,044        5.6
Outdoor Systems, Inc. .......................         6,608        0.2
                                                                  ----
                                                                  21.1%
                              Medium Capitalization
- -------------------------------------------------------------------------------
Hispanic Broadcasting Corp. .................       $ 3,756        3.6%
Century Communications Corp. ................         3,459        1.0
RCN Corp. ...................................         3,110        0.4
American Tower Corp. Class A ................         3,044        1.7
UnitedGlobalCom, Inc. Class A
   (Formerly United Intl. Hldgs., Inc.) .....         2,959        1.1
Citizens Utilities Co. ......................         2,940        1.6
Flextronics Intl., Ltd. .....................         2,897        2.8
Mirage Resorts, Inc. ........................         2,798        2.1
Williams-Sonoma, Inc. .......................         2,711        0.5
Westwood One, Inc. (Formerly Metro
   Networks, Inc.) ..........................         2,537        1.3
Dollar Tree Stores, Inc. ....................         2,474        2.6
Premier Parks, Inc. .........................         2,266        1.7
Spieker Properties, Inc. ....................         2,203        1.4
Robert Half Intl., Inc. .....................         2,194        2.9
Kimco Realty Corp. ..........................         2,171        0.5
Azurix Corp .................................         2,013        0.5
Manor Care, Inc. (Formerly HCR Manor
   Care, Inc.) ..............................         1,841        3.0
Polo Ralph Lauren Corp. Class A .............         1,787        3.2
Cox Radio, Inc. Class A .....................         1,704        0.8
Apollo Group, Inc. ..........................         1,632        2.0
Post Properties, Inc. .......................         1,517        0.1
Sotheby's Holdings, Inc. Class A ............         1,517        9.1
                                                                  ----
                                                                  43.9%

<PAGE>
                              Small Capitalization
- -------------------------------------------------------------------------------
DeVry, Inc. .................................       $ 1,388        1.8%
Ethan Allen Interiors, Inc. .................         1,297        0.9
Prison Realty Trust, Inc. ...................         1,259        0.1
Four Seasons Hotels, Inc. ...................         1,253        0.5
FelCor Lodging Trust, Inc. ..................         1,191        0.1
Industrie Natuzzi SPA ADR ...................         1,128        1.9
Aurora Foods, Inc. ..........................         1,072        0.4


- -------------------------------------------------------------------------------

                                                   Equity          % of
                                                 Market Cap        Net
                  Company                      (in millions)      Assets
- -------------------------------------------   ---------------   ---------
                       Small Capitalization (Continued)
- ----------------------------------------------------------------------------
Citadel Communications Corp. ..............        $1,068        0.4%
Iron Mountain, Inc. .......................         1,050        0.4
ChoicePoint, Inc. .........................           993        1.9
Commonwealth Telephone Ent., Inc. .........           972        0.2
Choice Hotels Intl., Inc. .................           940        3.9
OM Group, Inc. ............................           913        1.5
Sun Intl. Hotels, Ltd. ....................           802        1.3
Vail Resorts, Inc. Class A ................           801        3.9
CoreComm, Ltd. ............................           798        1.2
Young Broadcasting, Inc. Class A ..........           706        0.8
American Mobile Satellite Corp. ...........           688        1.0
Cross Timbers Oil Co. .....................           658        1.0
Seacor Smit, Inc. .........................           618        1.1
Taubman Centers, Inc. .....................           613        0.1
CD Radio, Inc. ............................           595        0.4
Sun Communities, Inc. .....................           573        0.2
Southern Union Co. ........................           564        0.7
Kenneth Cole Productions, Inc. Class A .              490        0.1
ITT Educational Services, Inc. ............           486        0.7
Libbey, Inc. ..............................           481        1.5
Education Management Corp. ................           365        0.6
Alexander's, Inc. .........................           362        0.4
Learning Tree Intl., Inc. .................           359        0.6
AMF Bowling, Inc. .........................           345        0.7
Stein Mart, Inc. ..........................           319        0.2
Saga Communications, Inc. Class A .........           302        1.2
Smart and Final, Inc. .....................           291        0.6
Budget Group, Inc. Class A ................           261        0.3
DVI, Inc. .................................           231        0.5
Avatar Holdings, Inc. .....................           174        0.2
Bristol Hotels & Resorts, Inc. ............           123        0.2
Sunburst Hospitality Corp. ................           118        0.4
Counsel Corp. .............................            90        0.1
                                                                ----
                                                                34.0%



                                      -24-
<PAGE>

                           B A R O N      F U N D S


Baron Growth Fund
- --------------------------------------------------------------------------------

                                                     Equity          % of
                                                   Market Cap        Net
                   Company                       (in millions)      Assets
- ---------------------------------------------   ---------------   ---------
                              Large Capitalization
- ------------------------------------------------------------------------------
Charles Schwab Corp. ........................       $27,550        6.1%
NTL, Inc. ...................................         7,044        6.4
                                                                  ----
                                                                  12.5%
                             Medium Capitalization
- ------------------------------------------------------------------------------
Hispanic Broadcasting Corp. .................       $ 3,756        1.7%
UnitedGlobalCom, Inc. Class A
   (Formerly United Intl. Hldgs., Inc.) .....         2,959        0.3
Flextronics Intl., Ltd. .....................         2,897        2.7
Westwood One, Inc. (Formerly Metro
   Networks, Inc.) ..........................         2,537        1.5
Dollar Tree Stores, Inc. ....................         2,474        2.2
Robert Half Intl., Inc. .....................         2,194        1.2
Time Warner Telecom, Inc. Class A ...........         2,180        0.1
Kimco Realty Corp. ..........................         2,171        1.2
Manor Care, Inc. (Formerly HCR Manor
   Care, Inc.) ..............................         1,841        0.6
Post Properties, Inc. .......................         1,517        1.0
Sotheby's Holdings, Inc. Class A ............         1,517        2.1
                                                                  ----
                                                                  14.6%
                              Small Capitalization
- ------------------------------------------------------------------------------
DeVry, Inc. .................................       $ 1,388        1.2%
Entercom Communications Corp. ...............         1,338        0.4
Insight Communications Co., Inc.
   Class A ..................................         1,308        0.3
Ethan Allen Interiors, Inc. .................         1,297        2.9
Wink Communications, Inc. ...................         1,267        0.6
Prison Realty Trust, Inc. ...................         1,259        0.3
Four Seasons Hotels, Inc. ...................         1,253        0.3
Industrie Natuzzi SPA ADR ...................         1,128        2.7
Aurora Foods, Inc. ..........................         1,072        2.1
Citadel Communications Corp. ................         1,068        1.3
The Yankee Candle Co., Inc. .................         1,053        1.2
Intrawest Corp. .............................           997        0.2
ChoicePoint, Inc. ...........................           993        2.7
Choice Hotels Intl., Inc. ...................           940        8.2
OM Group, Inc. ..............................           913        2.0
Extended Stay America, Inc. .................           858        1.1
Sun Intl. Hotels, Ltd. ......................           802        3.9
Vail Resorts, Inc. Class A ..................           801        1.2
CoreComm, Ltd. ..............................           798        2.6
Storage USA, Inc. ...........................           770        0.9
Radio One, Inc. Class A .....................           751        1.9
American Classic Voyages Co. ................           688        0.6
Electric Lightwave, Inc. Class A ............           661        1.3
Cross Timbers Oil Co. .......................           658        0.6
Seacor Smit, Inc. ...........................           618        0.9
Taubman Centers, Inc. .......................           613        0.2
CD Radio, Inc. ..............................           595        1.2
Sun Communities, Inc. .......................           573        1.4



<PAGE>


- --------------------------------------------------------------------------------

                                                   Equity          % of
                                                 Market Cap        Net
                  Company                      (in millions)      Assets
- -------------------------------------------   ---------------   ---------
                       Small Capitalization (Continued)
- ----------------------------------------------------------------------------
Southern Union Co. ........................         $564         2.3%
Corporate Executive Board Co. .............          537         0.2
ITT Educational Services, Inc. ............          486         0.9
Libbey, Inc. ..............................          481         0.8
Kronos, Inc. ..............................          463         0.5
Gabelli Asset Management, Inc. Class A .             461         1.1
American Mobile Satellite Corp. ...........          423         1.6
Rural Cellular Corp. Class A ..............          415         2.6
Steiner Leisure, Ltd. .....................          415         0.9
Education Management Corp. ................          365         2.3
Alexander's, Inc. .........................          362         0.8
Saga Communications, Inc. Class A .........          302         1.8
Smart and Final, Inc. .....................          291         1.6
Medallion Financial Corp. .................          284         1.8
DVI, Inc. .................................          231         0.9
ResortQuest Intl., Inc. ...................          169         0.3
Bristol Hotels & Resorts, Inc. ............          123         0.3
The Sports Club Co. .......................           89         0.5
                                                                ----
                                                                65.4%

Baron Small Cap Fund
- --------------------------------------------------------------------------------


                                                     Equity          % of
                                                   Market Cap        Net
                   Company                       (in millions)      Assets
- ---------------------------------------------   ---------------   ---------
                           Medium Capitalization
- ---------------------------------------------------------------------------
Century Communications Corp. ................        $3,459        2.3%
Lamar Advertising Co. Class A ...............         3,030        2.1
UnitedGlobalCom, Inc. Class A
   (Formerly United Intl. Hldgs., Inc.) .....         2,959       10.0
Williams-Sonoma, Inc. .......................         2,711        2.2
Westwood One, Inc. (Formerly Metro
   Networks, Inc.) ..........................         2,537        3.1
Premier Parks, Inc. .........................         2,266        4.0
SFX Entertainment, Inc. Class A .............         1,716        3.1
United Rentals, Inc. ........................         1,567        1.7
                                                                  ----
                                                                  28.5%
                              Small Capitalization
- ------------------------------------------------------------------------------
Centennial Cellular Corp. ...................        $1,418        0.5%
Hyperion Telecommunications, Inc.
   Class A ..................................         1,357        0.5
Entercom Communications Corp. ...............         1,338        0.7
Insight Communications Co., Inc.
   Class A ..................................         1,308        0.2
Four Seasons Hotels, Inc. ...................         1,253        2.7
High Speed Access Corp. .....................         1,242        0.6
Central Parking Corp. .......................         1,074        3.0
Pinnacle Holdings, Inc. .....................         1,063        0.4
The Yankee Candle Co., Inc. .................         1,053        1.6

                                       -25-
<PAGE>

                           B A R O N      F U N D S

Baron Small Cap Fund
- --------------------------------------------------------------------------------


                                                     Equity          % of
                                                   Market Cap        Net
                   Company                       (in millions)      Assets
- ---------------------------------------------   ---------------   ---------
                     Small Capitalization (Continued)
- ---------------------------------------------------------------------------
Iron Mountain, Inc. .........................        $1,050        4.0%
Intrawest Corp. .............................           997        0.6
ChoicePoint, Inc. ...........................           993        2.2
Commonwealth Telephone Ent., Inc. ...........           972        2.8
Sun Intl. Hotels, Ltd. ......................           802        1.3
CoreComm, Ltd. ..............................           798        2.4
Radio One, Inc. Class A .....................           751        3.0
Investment Technology Group, Inc. ...........           735        0.6
Commnet Cellular, Inc. ......................           716        1.5
Electric Lightwave, Inc. Class A ............           661        0.9
Corporate Executive Board Co. ...............           537        2.3
El Paso Electric Co. ........................           535        1.3
Penton Media, Inc. ..........................           509        0.9
Kenneth Cole Productions, Inc. Class A .                490        3.4
Loews Cineplex Entertainment Corp. ..........           462        1.1
Gabelli Asset Management, Inc. Class A .                461        0.7
Rural Cellular Corp. Class A ................           415        3.5
SBA Communications Corp. ....................           312        0.6
Loislaw.Com, Inc. ...........................           304        0.2
Heidrick & Struggles Int'l., Inc. ...........           299        1.9
Casella Waste Systems, Inc. Class A .........           267        0.9
Career Education Corp. ......................           227        3.6
IT Group, Inc. ..............................           218        1.8
Caribiner Intl., Inc. .......................           206        1.2
Province Healthcare Co. .....................           181        1.2
ResortQuest Intl., Inc. .....................           169        1.0
Todd-AO Corp. Class A .......................           145        1.3
KTI, Inc. ...................................           109        0.3
Morton's Restaurant Group, Inc. .............           101        0.9
Strategic Distribution, Inc. ................            97        0.2
Equity Marketing, Inc. ......................            92        0.6
The Sports Club Co. .........................            89        0.5
AVTEAM, Inc. Class A ........................            79        0.7
                                                                  ----
                                                                  59.6%


Table II
- --------------------------------------------------------------------------------
Portfolio Risk Characteristics
- --------------------------------------------------------------------------------
The  Funds are  diversified  not only by  industry,  but also by  external  risk
factors that might  impact the  companies  in which the Funds  invest.  Table II
displays  some  of the  risk  factors  that  are  currently  monitored  and  the
percentage of each portfolio  considered exposed to these factors. The Funds use
this tool to avoid concentration of risk within the portfolios.




                                                     Baron         Baron
                                       Baron         Growth        Small
                                       Asset        & Income        Cap
                                        Fund          Fund         Fund
                                    -----------   -----------   ----------
                                        % of          % of         % of
                                     Portfolio     Portfolio     Portfolio
                                    -----------   -----------   ----------
Leverage (Debt > 40% of
   Market Cap) ..................       23.6%         32.7%         45.0%
Foreign Sales Dependent
   (Sales > 15%) ................       26.4          18.5          17.7
Oil Price Sensitivity ...........       18.1          22.4           5.0
Volatility (Beta > 1.2) .........       35.0          19.1          14.6
Over-the-Counter Securities             24.8          33.0          44.5
Unseasoned Securities
   (Publicly owned
    for <3 years) ..............        19.1          29.2          40.5
 (Publicly owned
    for <1 year) ...............         0.5           6.2          13.6
Turnarounds .....................        1.4           1.6           4.1
Development Companies ...........        4.5           3.6           6.2

                                       -26-
<PAGE>

                           B A R O N      F U N D S

Table III
- --------------------------------------------------------------------------------
Historical Information (Unaudited)
- --------------------------------------------------------------------------------

Table III  displays on a quarterly  basis the Funds'  closing net assets and net
asset value per share, dividend  distributions and the value of $10,000 invested
in a Fund at the time of its inception.

- --------------------------------------------------------------------------------
Baron Asset Fund
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                  Net Asset                       Value of Shares
                                    Value                        Owned, if Initial
   Date       Fund Net Assets     Per Share     Dividends     Investment was $10,000*
- ----------   -----------------   -----------   -----------   ------------------------
<S>          <C>                 <C>           <C>           <C>
06/12/87     $     108,728       $ 10.00                              $10,000
- -------------------------------------------------------------------------------------
06/30/87         1,437,521        10.71                                10,710
- -------------------------------------------------------------------------------------
09/30/87         3,905,221        11.95                                11,950
- -------------------------------------------------------------------------------------
12/31/87         4,406,972        10.10        $ 0.197                 10,298
- -------------------------------------------------------------------------------------
03/31/88         6,939,435        11.56                                11,786
- -------------------------------------------------------------------------------------
06/30/88         9,801,677        12.68                                12,928
- -------------------------------------------------------------------------------------
09/30/88        11,734,509        12.98                                13,234
- -------------------------------------------------------------------------------------
12/31/88        15,112,031        12.87         0.701                  13,843
- -------------------------------------------------------------------------------------
03/31/89        22,269,578        14.75                                15,864
- -------------------------------------------------------------------------------------
06/30/89        31,397,929        16.06                                17,273
- -------------------------------------------------------------------------------------
09/30/89        47,658,616        17.22                                18,521
- -------------------------------------------------------------------------------------
12/31/89        49,007,084        14.66         1.409                  17,299
- -------------------------------------------------------------------------------------
03/31/90        50,837,946        13.87                                16,367
- -------------------------------------------------------------------------------------
06/30/90        54,413,786        14.32                                16,898
- -------------------------------------------------------------------------------------
09/30/90        40,002,612        10.88                                12,838
- -------------------------------------------------------------------------------------
12/31/90        42,376,625        11.75         0.198                  14,100
- -------------------------------------------------------------------------------------
03/31/91        47,104,889        13.88                                16,656
- -------------------------------------------------------------------------------------
06/30/91        45,600,730        13.81                                16,572
- -------------------------------------------------------------------------------------
09/30/91        47,409,180        14.80                                17,760
- -------------------------------------------------------------------------------------
12/31/91        46,305,042        15.71         0.035                  18,895
- -------------------------------------------------------------------------------------
03/31/92        48,011,634        16.72                                20,109
- -------------------------------------------------------------------------------------
06/30/92        42,289,409        15.28                                18,377
- -------------------------------------------------------------------------------------
09/30/92        43,816,305        16.20                                19,484
- -------------------------------------------------------------------------------------
</TABLE>


<PAGE>

<TABLE>
<CAPTION>
<S>             <C>              <C>            <C>                   <C>
12/31/92        47,955,530        17.73         0.162                  21,522
- -------------------------------------------------------------------------------------
03/31/93        50,015,244        18.82                                22,845
- -------------------------------------------------------------------------------------
06/30/93        52,432,090        19.70                                23,912
- -------------------------------------------------------------------------------------
09/30/93        59,916,570        21.91                                26,595
- -------------------------------------------------------------------------------------
12/31/93        64,069,114        21.11         0.774                  26,576
- -------------------------------------------------------------------------------------
03/31/94        63,099,109        20.69                                26,047
- -------------------------------------------------------------------------------------
06/30/94        68,880,300        20.40                                25,682
- -------------------------------------------------------------------------------------
09/30/94        80,258,542        22.82                                28,728
- -------------------------------------------------------------------------------------
12/31/94        87,058,228        22.01         0.656                  28,547
- -------------------------------------------------------------------------------------
03/31/95       160,603,528        24.29                                31,505
- -------------------------------------------------------------------------------------
06/30/95       202,259,502        25.79                                33,450
- -------------------------------------------------------------------------------------
09/30/95       289,973,331        29.30                                38,003
- -------------------------------------------------------------------------------------
12/31/95       353,095,409        29.74         0.034                  38,618
- -------------------------------------------------------------------------------------
03/31/96       638,297,904        34.14                                44,332
- -------------------------------------------------------------------------------------
06/30/96     1,124,647,802        36.65                                47,591
- -------------------------------------------------------------------------------------
09/30/96     1,166,057,654        35.50                                46,098
- -------------------------------------------------------------------------------------
12/31/96     1,326,321,785        36.23         0.039                  47,097
- -------------------------------------------------------------------------------------
03/31/97     1,663,347,667        34.98                                45,472
- -------------------------------------------------------------------------------------
06/30/97     2,306,228,855        41.74                                54,260
- -------------------------------------------------------------------------------------
09/30/97     3,224,498,394        47.43                                61,656
- -------------------------------------------------------------------------------------
12/31/97     3,793,013,753        48.51         0.000                  63,060
- -------------------------------------------------------------------------------------
03/31/98     5,187,450,337        53.68                                69,781
- -------------------------------------------------------------------------------------
06/30/98     5,545,334,568        52.20                                67,857
- -------------------------------------------------------------------------------------
09/30/98     4,410,506,448        39.96                                51,946
- -------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
                                  Net Asset                       Value of Shares
                                    Value                        Owned, if Initial
   Date       Fund Net Assets     Per Share     Dividends     Investment was $10,000*
<S>           <C>                 <C>           <C>           <C>
- -------------------------------------------------------------------------------------
12/31/98     $5,672,309,694       $50.54         $0.041              $65,752
- -------------------------------------------------------------------------------------
03/31/99      6,087,986,855        54.17                              70,474
- -------------------------------------------------------------------------------------
06/30/99      6,991,160,511        60.63                              78,879
- -------------------------------------------------------------------------------------
09/30/99      5,863,125,015        51.57                              67,092
- -------------------------------------------------------------------------------------
</TABLE>

* Assumes all dividends were reinvested and no shares were redeemed.

BARON ASSET FUND'S
AVERAGE ANNUAL RETURN

                        Period ended September 30, 1999


One year                          29.2%
- ---------------------------------------
Two years                          4.3%
- ---------------------------------------
Three years                       13.3%
- ---------------------------------------
Four years                        15.3%
- ---------------------------------------
Five years                        18.5%
- ---------------------------------------
Ten years                         13.7%
- ---------------------------------------
Since inception June 12, 1987     16.7%
- ---------------------------------------



                                       -27-
<PAGE>

                           B A R O N      F U N D S

- --------------------------------------------------------------------------------
Baron Growth Fund
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                     Net Asset                       Value of Shares
                                       Value                        Owned, if Initial
     Date        Fund Net Assets     Per Share     Dividends     Investment was $10,000*
- -------------   -----------------   -----------   -----------   ------------------------
<S>             <C>                 <C>           <C>           <C>

   01/03/95     $   741,000         $ 10.00                              $10,000
- ----------------------------------------------------------------------------------------
   03/31/95       3,425,507          11.78                                11,780
- ----------------------------------------------------------------------------------------
   06/30/95       7,231,619          13.18                                13,180
- ----------------------------------------------------------------------------------------
   09/30/95      28,632,467          14.77                                14,770
- ----------------------------------------------------------------------------------------
   12/31/95      41,043,705          15.11        $ 0.142                 15,254
- ----------------------------------------------------------------------------------------
   03/31/96      77,337,831          16.90                                17,061
- ----------------------------------------------------------------------------------------
   06/30/96     172,070,435          18.20                                18,373
- ----------------------------------------------------------------------------------------
   09/30/96     207,234,494          18.40                                18,575
- ----------------------------------------------------------------------------------------
   12/31/96     243,983,507          19.04         0.255                  19,483
- ----------------------------------------------------------------------------------------
   03/31/97     273,907,177          18.57                                19,002
- ----------------------------------------------------------------------------------------
   06/30/97     316,981,759          21.82                                22,328
- ----------------------------------------------------------------------------------------
   09/30/97     390,831,861          24.89                                25,469
- ----------------------------------------------------------------------------------------
   12/31/97     415,134,319          24.88         0.073                  25,535
- ----------------------------------------------------------------------------------------
   03/31/98     511,405,730          27.28                                27,998
- ----------------------------------------------------------------------------------------
   06/30/98     478,748,484          26.07                                26,757
- ----------------------------------------------------------------------------------------
   09/30/98     315,557,850          20.32                                20,855
- ----------------------------------------------------------------------------------------
   12/31/98     343,695,555          24.87         0.035                  25,561
- ----------------------------------------------------------------------------------------
   03/31/99     313,002,293          26.75                                27,493
- ----------------------------------------------------------------------------------------
   06/30/99     396,879,495          31.42                                32,293
- ----------------------------------------------------------------------------------------
   09/30/99     439,424,784          29.06                                29,868
- ----------------------------------------------------------------------------------------
</TABLE>

* Assumes all dividends were reinvested and no shares were redeemed.


BARON GROWTH FUND'S
AVERAGE ANNUAL RETURN

                        Period ended September 30, 1999


One year                            43.2%
- -----------------------------------------
Two years                            8.3%
- -----------------------------------------
Three years                         17.2%
- -----------------------------------------
Four years                          19.2%
- -----------------------------------------
Since inception January 3, 1995     25.9%
- -----------------------------------------
<PAGE>


- --------------------------------------------------------------------------------
Baron Small Cap Fund
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                     Net Asset                       Value of Shares
                                       Value                        Owned, if Initial
     Date        Fund Net Assets     Per Share     Dividends     Investment was $10,000*
<S>             <C>                 <C>            <C>           <C>
- ----------------------------------------------------------------------------------------
   10/01/97     $112,604,624        $ 10.00                              $10,000
- ----------------------------------------------------------------------------------------
   12/31/97      285,270,924         10.31        0.000                   10,310
- ----------------------------------------------------------------------------------------
   03/31/98      449,240,304         11.84                                11,840
- ----------------------------------------------------------------------------------------
   06/30/98      571,568,792         11.97                                11,970
- ----------------------------------------------------------------------------------------
   09/30/98      403,727,998          8.61                                 8,610
- ----------------------------------------------------------------------------------------
   12/31/98      470,029,904         10.54        0.000                   10,540
- ----------------------------------------------------------------------------------------
   03/31/99      521,729,028         11.89                                11,890
- ----------------------------------------------------------------------------------------
   06/30/99      644,583,528         13.36                                13,360
- ----------------------------------------------------------------------------------------
   09/30/99      715,683,132         13.37                                13,370
- ----------------------------------------------------------------------------------------
</TABLE>

* Assumes all dividends were reinvested and no shares were redeemed.

BARON SMALL CAP FUND'S
AVERAGE ANNUAL RETURN

                        Period ended September 30, 1999


One year                            55.3%
- -----------------------------------------
Since inception October 1, 1997     15.6%
- -----------------------------------------

The  performance  data  represents  past  performance.  Investment  returns  and
principal value will fluctuate so that an investor's shares, when redeemed,  may
be worth more or less than their cost. For more complete information about Baron
Funds, including charges and expenses,  call or write for a prospectus.  Read it
carefully before you invest or send money. This report is not authorized for use
as an offer of sale or a  solicitation  of an offer to buy shares of Baron Funds
unless accompanied or preceded by the Funds' current prospectus.


                                      -28-
<PAGE>

                       B A R O N    A S S E T    F U N D
STATEMENT OF NET ASSETS
- --------------------------------------------------------------------------------
September 30, 1999




Shares                                                           Value
- --------------------------------------------------------------------------------

Common Stocks (99.36%)
- --------------------------------------------------------------------------------
                  Amusement and Recreation Services (9.73%)
   10,210,000     AMF Bowling, Inc.*#                        $  42,116,250
    8,550,000     Mirage Resorts, Inc.*                        120,234,375
    3,450,000     Premier Parks, Inc.*                         100,050,000
    3,315,000     Sun Intl. Hotels, Ltd.*#                      79,145,625
    6,066,000     Vail Resorts, Inc. Class A*#                 140,655,375
    4,000,000     Vail Resorts, Inc. Class A*# @                88,112,400
                                                             -------------
                                                               570,314,025
                  Business Services (5.30%)
    1,640,000     ChoicePoint, Inc.*#                          110,495,000
    1,749,532     Correctional Management Services
                   Corp.*@                                       8,000,085
      650,000     Iron Mountain, Inc.*                          22,018,750
    7,100,000     Robert Half Intl., Inc.*#                    170,400,000
                                                             -------------
                                                               310,913,835
                  Chemical (1.55%)
    2,367,500     OM Group, Inc. #                              90,852,813

                  Communications (11.04%)
    3,500,000     American Mobile Satellite Corp.*#             61,250,000
    5,000,000     American Tower Corp. Class A*                 97,812,500
    1,230,000     Century Communications Corp.*                 56,118,750
      254,200     Commonwealth Telephone Ent., Inc.*            11,184,800
    2,205,000     CoreComm, Ltd.*#                              72,627,155
    3,391,636     NTL, Inc.*                                   325,914,852
      549,000     RCN Corp.*                                    22,509,000
                                                             -------------
                                                               647,417,057
                  Education (5.66%)
    5,605,000     Apollo Group, Inc.*                          118,405,625
       52,632     Apollo International, Inc. S-A CV
                    Pfd.*@                                       1,000,008
      804,600     Caliber Learning Network, Inc.*#               1,659,488
    5,150,000     DeVry, Inc.*#                                103,000,000
    2,900,000     Education Management Corp.*#                  35,887,500
    2,000,000     ITT Educational Services, Inc.*#              39,000,000
    2,000,000     Learning Tree Intl., Inc.*#                   33,125,000
                                                             -------------
                                                               332,077,621
                  Energy (2.14%)
    4,375,000     Cross Timbers Oil Co.#                        59,062,500
    1,300,000     Seacor Smit, Inc.*#                           66,625,000
                                                             -------------
                                                               125,687,500
                  Financial (14.39%)
   24,225,000     Charles Schwab Corp.                         816,079,687
    1,680,000     DVI, Inc.*#                                   27,510,000
                                                             -------------
                                                               843,589,687
                  Food & Agriculture (0.40%)
    1,446,700     Aurora Foods, Inc.*                           23,147,200

                  Health Services (3.24%)
        2,557     Chesapeake Healthcare Corp.* @                 4,000,196
    2,170,000     Counsel Corp.*#                                7,323,750
   10,400,000     Manor Care, Inc. (Formerly HCR
                   Manor Care, Inc.)*#                         178,750,000
                                                             -------------
                                                               190,073,946


<PAGE>



Shares                                                       Value
- --------------------------------------------------------------------------------

                  Hotels and Lodging (5.03%)
    2,100,750     Bristol Hotels & Resorts, Inc.*#           $  14,442,656
   13,225,300     Choice Hotels Intl., Inc.*#                  226,483,263
      800,000     Four Seasons Hotels, Inc.                     29,250,000
    3,975,036     Sunburst Hospitality Corp.*#                  24,595,536
                                                             -------------
                                                               294,771,455
                  Manufacturing (2.78%)
    2,800,000     Flextronics Intl., Ltd.*#                    162,925,000

                  Media and Entertainment (11.05%)
      825,000     CD Radio, Inc.*                               21,037,500
      650,000     Citadel Communications Corp.*                 22,181,250
      830,000     Cox Radio, Inc. Class A*                      49,385,000
    2,800,000     Hispanic Broadcasting Corp.*#                213,150,000
      250,000     Outdoor Systems, Inc.*                         8,937,500
    2,937,002     Saga Communications, Inc. Class A*#           67,551,046
      875,000     UnitedGlobalCom, Inc. Class A
                   (Formerly United Intl. Hldgs., Inc.)*        62,671,875
      975,000     Univision Communications, Inc.
                   Class A*                                     79,340,625
    1,700,000     Westwood One, Inc. (Formerly Metro
                   Networks, Inc.)*                             76,712,500
      900,000     Young Broadcasting, Inc. Class A*             47,137,500
                                                             -------------
                                                               648,104,796
                  Real Estate and REITs (3.24%)
      350,900     Alexander's, Inc.*#                           25,374,456
      750,000     Avatar Holdings, Inc.*#                       14,250,000
      375,000     FelCor Lodging Trust, Inc.                     6,562,500
      800,000     Kimco Realty Corp.                            28,600,000
      179,999     Post Properties, Inc.                          7,076,211
      600,000     Prison Realty Trust, Inc.                      6,450,000
    2,400,000     Spieker Properties, Inc.                      83,250,000
      335,000     Sun Communities, Inc.                         11,075,938
      640,000     Taubman Centers, Inc.                          7,360,000
                                                             -------------
                                                               189,999,105
                  Retail Trade and Restaurants (17.14%)
    3,750,000     Dollar Tree Stores, Inc.*#                   149,765,625
    1,639,500     Ethan Allen Interiors, Inc.                   52,156,594
       88,500     Kenneth Cole Productions, Inc.
                   Class A*                                      3,307,687
      129,900     Morton's Restaurant Group, Inc.*               2,281,369
   10,360,000     Polo Ralph Lauren Corp. Class A*             185,832,500
    3,393,500     Smart and Final, Inc.#                        33,935,000
   20,775,000     Sotheby's Holdings, Inc. Class A#            536,254,687
    1,750,000     Stein Mart, Inc.*                             12,468,750
      600,000     Williams-Sonoma, Inc.*                        29,137,500
                                                             -------------
                                                             1,005,139,712
                  Transportation (0.28%)
    2,300,000     Budget Group, Inc. Class A*                   16,243,750

                  Utility Services (2.90%)
    1,825,000     Azurix Corp.*                                 31,367,187
    8,500,000     Citizens Utilities Co.*                       96,156,250
    2,230,000     Southern Union Co.*#                          42,370,000
                                                             -------------
                                                               169,893,437
                  Wholesale Trade (3.38%)
    5,687,000     Industrie Natuzzi SPA ADR#                   111,607,375
    2,920,000     Libbey, Inc.#                                 86,322,500
                                                             -------------
                                                               197,929,875

                       See Notes to Financial Statements.


                                      -29-
<PAGE>

                         B A R O N  A S S E T  F U N D


STATEMENT OF NET ASSETS
- --------------------------------------------------------------------------------
September 30, 1999

<TABLE>
<CAPTION>
Shares                                                                               Value
- -------------------------------------------------------------------------------------------------
<S>                                                                             <C>

Common Stocks (continued)
- --------------------------------------------------------------------------------------------------
                                      Miscellaneous (0.11%)                      $    6,475,000
                                                                                 --------------
Total Common Stocks
 (Cost $4,546,218,747)                                                             5,825,555,814
                                                                                  --------------
- --------------------------------------------------------------------------------------------------
Convertible Preferred Stock (0.18%)
- --------------------------------------------------------------------------------------------------
                                      Transportation
     350,000                          Budget Group Capital Trust Conv. Pref.+
                                       (Cost $17,500,000)                            10,850,000
                                                                                 --------------
</TABLE>




<TABLE>
<CAPTION>
Principal Amount                                                                         Value
- ----------------------------------------------------------------------------------------------------
<S>                                                                                  <C>
Corporate Bonds (0.37%)
- ----------------------------------------------------------------------------------------------------
                                             Communications
$ 21,500,000                                 American Mobile Satellite Corp. 6.0%
                                              Jr. Sub. Secured Exch. Note due
                                              09/30/2006 (Cost $21,500,000) @        $   21,500,000
                                                                                     --------------
Total Investments (99.91%)
 (Cost $4,585,218,747**)                                                              5,857,905,814

Cash and Other Assets
 Less Liabilities (0.09%)                                                                 5,219,201
                                                                                     --------------
Net Assets (Equivalent to $51.57 per share
  based on 113,687,936 shares of beneficial
  interest outstanding)                                                              $5,863,125,015
                                                                                     ==============
</TABLE>

- ----------
 % Represents percentage of net assets
 + Rule 144A securities
 @ Restricted securities
 # Issuers deemed to be "affiliated"
 * Non-income producing securities
** For Federal income tax purposes the cost basis is $4,585,118,355. Aggregate
   unrealized appreciation and depreciation of investments are $2,040,141,991
   and $767,354,532, respectively.


                       See Notes to Financial Statements.

                                      -30-
<PAGE>

                        B A R O N  G R O W T H  F U N D


STATEMENT OF NET ASSETS
- --------------------------------------------------------------------------------
September 30, 1999

Shares                                                          Value

- --------------------------------------------------------------------------------
Common Stocks (92.72%)
- --------------------------------------------------------------------------------
                 Amusement and Recreation Services (7.37%)
     120,000     American Classic Voyages Co.*                $  2,752,500
      50,000     Intrawest Corp.                                   828,125
     165,000     Steiner Leisure, Ltd.*                          4,125,000
     720,000     Sun Intl. Hotels, Ltd.*                        17,190,000
     410,000     The Sports Club Co.*                            2,050,000
     235,000     Vail Resorts, Inc. Class A*                     5,449,063
                                                              ------------
                                                                32,394,688
                 Business Services (4.64%)
     175,000     ChoicePoint, Inc.*                             11,790,625
      25,000     Corporate Executive Board Co.*                  1,018,750
       4,000     DBT Online, Inc.*                                  99,750
      60,000     Kronos, Inc.*                                   2,201,250
     220,000     Robert Half Intl., Inc.*                        5,280,000
                                                              ------------
                                                                20,390,375
                 Chemical (2.00%)
     228,700     OM Group, Inc.                                  8,776,362
                 Communications (15.04%)
     390,000     American Mobile Satellite Corp.*                6,825,000
     340,000     CoreComm, Ltd.*                                11,198,750
     412,600     Electric Lightwave, Inc. Class A*               5,466,950
     292,804     NTL, Inc.*                                     28,136,620
     250,000     Rural Cellular Corp. Class A*                  11,468,750
      20,000     Time Warner Telecom, Inc. Class A*                417,500
      59,500     Wink Communications, Inc.*                      2,599,406
                                                              ------------
                                                                66,112,976
                 Education (4.43%)
     270,000     DeVry, Inc.*                                    5,400,000
     820,000     Education Management Corp.*                    10,147,500
     200,000     ITT Educational Services, Inc.*                 3,900,000
                                                              ------------
                                                                19,447,500
                 Energy (1.49%)
     180,000     Cross Timbers Oil Co.                           2,430,000
      80,000     Seacor Smit, Inc.*                              4,100,000
                                                              ------------
                                                                 6,530,000
                 Financial (10.14%)
      93,333     Bingham Financial Services Corp.*@                864,497
     800,000     Charles Schwab Corp.                           26,950,000
     250,000     DVI, Inc.*                                      4,093,750
     299,000     Gabelli Asset Management, Inc. Class A*         4,615,813
     396,200     Medallion Financial Corp.                       8,023,050
                                                              ------------
                                                                44,547,110
                 Food & Agriculture (2.14%)
     587,600     Aurora Foods, Inc.*                             9,401,600

                 Health Services (0.59%)
     150,000     Manor Care, Inc. (Formerly
                  HCR Manor Care, Inc.)*                         2,578,125

                 Hotels and Lodging (10.24%)
     218,800     Bristol Hotels & Resorts, Inc.*                 1,504,250
   2,100,000     Choice Hotels Intl., Inc.*                     35,962,500
     550,000     Extended Stay America, Inc.*                    4,950,000
      35,000     Four Seasons Hotels, Inc.                       1,279,687
     140,000     ResortQuest Intl., Inc.*                        1,303,750
                                                              ------------
                                                                45,000,187
                 Manufacturing (2.65%)
     200,000     Flextronics Intl., Ltd.*                       11,637,500


<PAGE>


Shares                                                           Value
- ------------                                                  ------------
                 Media and Entertainment (10.43%)
     200,000     CD Radio, Inc.*                              $  5,100,000
     160,000     Citadel Communications Corp.*                   5,460,000
      50,000     Entercom Communications Corp.*                  1,800,000
     100,000     Hispanic Broadcasting Corp.*                    7,612,500
      50,000     Insight Communications Co., Inc.
                  Class A*                                       1,431,250
     200,000     Radio One, Inc. Class A*                        8,300,000
     343,750     Saga Communications, Inc. Class A*              7,906,250
      20,000     UnitedGlobalCom, Inc. Class A
                  (Formerly United Intl. Hldgs., Inc.)*          1,432,500
     150,000     Westwood One, Inc. (Formerly Metro
                  Networks, Inc.)*                               6,768,750
                                                              ------------
                                                                45,811,250
                 Real Estate and REITs (5.83%)
      48,600     Alexander's, Inc.*                              3,514,388
     150,000     Kimco Realty Corp.                              5,362,500
     109,999     Post Properties, Inc.                           4,324,336
     100,000     Prison Realty Trust, Inc.                       1,075,000
     150,000     Storage USA, Inc.                               4,125,000
     190,000     Sun Communities, Inc.                           6,281,875
      80,000     Taubman Centers, Inc.                             920,000
                                                              ------------
                                                                25,603,099
                 Retail Trade and Restaurants (9.90%)
     240,000     Dollar Tree Stores, Inc.*                       9,585,000
     394,500     Ethan Allen Interiors, Inc.                    12,550,031
     707,781     Smart and Final, Inc.                           7,077,810
     360,000     Sotheby's Holdings, Inc. Class A                9,292,500
     260,000     The Yankee Candle Co., Inc.*                    5,021,250
                                                              ------------
                                                                43,526,591
                 Utility Services (2.27%)
     526,050     Southern Union Co.*                             9,994,950

                 Wholesale Trade (3.56%)
     610,000     Industrie Natuzzi SPA ADR                      11,971,250
     125,000     Libbey, Inc.                                    3,695,312
                                                              ------------
                                                                15,666,562
                                                              ------------
Total Common Stocks
  (Cost $289,530,356)                                          407,418,875
                                                              ------------
Principal Amount
- ------------------------------------------------------------------------------
Short Term Money Market Instruments (7.96%)
- ------------------------------------------------------------------------------
$ 34,999,999     Associates Corp. of N. A. 4.25%
                  due 10/01/1999 (Cost $34,999,999)             34,999,999
                                                              ------------

Total Investments (100.68%)
  (Cost $324,530,355**)                                        442,418,874
Liabilities Less
  Cash and Other Assets (-0.68%)                                (2,994,090)
                                                              ------------
Net Assets (Equivalent to $29.06 per
 share based on 15,121,926 shares of
 beneficial interest outstanding)                             $439,424,784
                                                              ============

- ----------
 % Represents percentage of net assets
 * Non-income producing securities
 @ Restricted securities
** For Federal income tax purposes the cost basis is $324,651,615. Aggregate
   unrealized appreciation and depreciation of investments are $132,346,358
   and $14,579,099, respectively.

                       See Notes to Financial Statements.

                                      -31-
<PAGE>

                   B A R O N   S M A L L   C A P   F U N D
STATEMENT OF NET ASSETS
- --------------------------------------------------------------------------------
September 30, 1999

Shares                                                        Value
- --------------------------------------------------------------------------------
Common Stocks (88.07%)
- --------------------------------------------------------------------------------
                           Amusement and Recreation Services (10.62%)
     250,000      Intrawest Corp.                             $  4,140,625
   1,000,000      Loews Cineplex Entertainment Corp.*            7,875,000
   1,000,000      Premier Parks, Inc.*                          29,000,000
     725,000      SFX Entertainment, Inc. Class A*              22,112,500
     375,000      Sun Intl. Hotels, Ltd.*                        8,953,125
     790,300      The Sports Club Co.*                           3,951,500
                                                              ------------
                                                                76,032,750
                  Business Services (16.37%)
   1,000,000      Caribiner Intl., Inc.*                         8,687,500
     235,000      ChoicePoint, Inc.*                            15,833,125
     400,000      Corporate Executive Board Co.*                16,300,000
     725,000      Heidrick & Struggles Int'l., Inc.*            13,820,313
     850,000      Iron Mountain, Inc.*                          28,793,750
     307,500      Lamar Advertising Co. Class A*                15,221,250
     100,000      Loislaw.Com, Inc.*                             1,450,000
     400,000      Penton Media, Inc.                             6,500,000
     500,000      Strategic Distribution, Inc.*                  1,562,500
     600,000      Todd-AO Corp. Class A                          9,000,000
                                                              ------------
                                                               117,168,438
                  Communications (15.97%)
      75,000      Centennial Cellular Corp.*                     3,407,812
     350,000      Century Communications Corp.*                 15,968,750
     450,000      Commonwealth Telephone Ent., Inc.*            19,800,000
     350,000      Commnet Cellular, Inc.*                       10,959,375
     525,000      CoreComm, Ltd.*                               17,292,188
     500,000      Electric Lightwave, Inc. Class A*              6,625,000
     200,000      High Speed Access Corp.*                       4,587,500
     150,000      Hyperion Telecommunications, Inc.
                  Class A*                                       3,721,875
     100,000      Pinnacle Holdings, Inc.*                       2,612,500
     550,000      Rural Cellular Corp. Class A*                 25,231,250
     375,000      SBA Communications Corp.*                      4,078,125
                                                              ------------
                                                               114,284,375
                  Consumer Products (0.62%)
     300,000      Equity Marketing, Inc.*                        4,425,000

                  Consumer Services (2.96%)
     725,000      Central Parking Corp.                         21,206,250

                  Education (3.62%)
     893,900      Career Education Corp.*#                      25,923,100

                  Environmental (2.92%)
     370,000      Casella Waste Systems, Inc. Class A*           6,174,375
   1,350,000      IT Group, Inc.*#                              12,909,375
     235,800      KTI, Inc.*                                     1,842,187
                                                              ------------
                                                                20,925,937
                  Financial (1.29%)
     299,000      Gabelli Asset Management, Inc. Class A*        4,615,813
     200,000      Investment Technology Group, Inc.              4,600,000
                                                              ------------
                                                                 9,215,813
                  Health Services (1.17%)
     725,000      Province Healthcare Co.*                       8,337,500


<PAGE>


Shares                                                            Value
- --------------------------------------------------------------------------------
                  Hotels and Lodging (3.66%)
     525,000      Four Seasons Hotels, Inc.                   $ 19,195,312
     750,000      ResortQuest Intl., Inc.*                       6,984,375
                                                              ------------
                                                                26,179,687
                  Industrial Services (1.67%)
     550,000      United Rentals, Inc.*                         11,962,500

                  Manufacturing (0.72%)
     750,000      AVTEAM, Inc. Class A* #                        5,156,250

                  Media and Entertainment (17.16%)
     150,000      Entercom Communications Corp.*                 5,400,000
      50,000      Insight Communications Co., Inc.
                  Class A*                                       1,431,250
     525,000      Radio One, Inc. Class A*                      21,787,500
   1,000,000      UnitedGlobalCom, Inc. Class A
                  (Formerly United Intl. Hldgs., Inc.)*         71,625,000
     500,000      Westwood One, Inc. (Formerly Metro
                  Networks, Inc.)*                              22,562,500
                                                              ------------
                                                               122,806,250
                  Retail Trade and Restaurants (8.06%)
     660,000      Kenneth Cole Productions, Inc. Class A*       24,667,500
     350,000      Morton's Restaurant Group, Inc.*#              6,146,875
     325,000      Williams-Sonoma, Inc.*                        15,782,813
     575,000      The Yankee Candle Co., Inc.*                  11,104,687
                                                              ------------
                                                                57,701,875
                  Utility Services (1.26%)
   1,000,000      El Paso Electric Co.*                          9,000,000
                                                              ------------
Total Common Stocks
  (Cost $463,200,683)
                                                               630,325,725
                                                              ------------
Principal Amount
- ------------------------------------------------------------------------------
Corporate Bonds (0.29%)
- ------------------------------------------------------------------------------
                  Health Services
$  3,250,000      U.S. Diagnostic, Inc. 9.00% Conv. Sub.
                  Deb. due 03/31/2003 (Cost $2,520,000)          2,080,000
                                                              ------------
- --------------------------------------------------------------------------------
Short Term Money Market Instruments (9.64%)
- ------------------------------------------------------------------------------
  68,999,999      Associates Corp. of N.A. 4.25% due
                  10/01/99 (Cost $68,999,999)                   68,999,999
                                                              ------------
Total Investments (98.00%)
   (Cost $534,720,682**)
                                                               701,405,724
Cash and Other Assets
   Less Liabilities (2.00%)
                                                                14,277,408
                                                              ------------
Net Assets (Equivalent to $13.37 per
  share based on 53,530,434 shares of
  beneficial interest outstanding)
                                                              $715,683,132
                                                              ============

 % Represents percentage of net assets
 # Issuers that may be deemed to be "affiliated"
 * Non-income producing securities
** For Federal income tax purposes the cost basis is $538,413,749. Aggregate
   unrealized appreciation and depreciation of investments are $206,249,353
   and $43,257,378, respectively.


                       See Notes to Financial Statements.

                                      -32-
<PAGE>

                             B A R O N   F U N D S

STATEMENTS OF ASSETS AND LIABILITIES
- --------------------------------------------------------------------------------
SEPTEMBER 30, 1999


<TABLE>
<CAPTION>

                                                                Baron Asset         Baron Growth      Baron Small Cap
                                                                    Fund                Fund               Fund
                                                                -----------------   ---------------   ----------------
<S>                                                             <C>                 <C>               <C>
Assets:
 Investments in securities, at value
  Unaffiliated issuers
    (Cost $1,759,192,259, $324,530,355, and $485,567,198,
     respectively)                                            $2,741,280,814       $ 442,418,874      $ 651,270,124
  "Affiliated" issuers (Cost $2,826,026,488, $0, and
    $49,153,484, respectively)                                 3,116,625,000                   0         50,135,600
  Dividends and interest receivable                                2,481,449             234,548             19,446
  Receivable for securities sold                                  23,297,183                   0         18,124,837
  Receivable for shares sold                                      10,028,797           2,134,667          3,193,942
  Unamortized organization costs                                           0               1,644             17,085
  Prepaid expenses                                                    24,212                   0                  0
                                                              --------------       -------------      -------------
                                                               5,893,737,455         444,789,733        722,761,034
                                                              --------------       -------------      -------------
Liabilities:
 Payable for securities purchased                                  3,442,398           4,668,075          5,596,130
 Payable for shares redeemed                                      16,086,549             337,290            655,283
 Due to custodian bank                                            10,673,957             253,156            673,658
 Accrued organization costs                                                0               1,644             17,085
 Accrued expenses and other payables                                 409,536             104,784            135,746
                                                              --------------       -------------      -------------
                                                                  30,612,440           5,364,949          7,077,902
                                                              --------------       -------------      -------------
Net Assets                                                    $5,863,125,015       $ 439,424,784      $ 715,683,132
                                                              ==============       =============      =============
Net Assets consist of:
Capital paid-in                                               $4,640,572,993       $ 292,811,668      $ 604,942,511
Accumulated net realized gain(loss)                              (50,135,045)         28,724,597        (55,944,421)
Net unrealized appreciation on investments                     1,272,687,067         117,888,519        166,685,042
                                                              --------------       -------------      -------------
Net Assets                                                    $5,863,125,015       $ 439,424,784      $ 715,683,132
                                                              ==============       =============      =============
Shares of Beneficial Interest Outstanding
($.01 par value; indefinite shares authorized)                   113,687,936          15,121,926         53,530,434
                                                              ==============       =============      =============
Net Asset Value Per Share                                     $        51.57       $       29.06      $       13.37
                                                              ==============       =============      =============

</TABLE>
                      See Notes to Financial Statements.



                                      -33-
<PAGE>

                             B A R O N   F U N D S

STATEMENTS OF OPERATIONS
- --------------------------------------------------------------------------------
FOR THE YEAR ENDED SEPTEMBER 30, 1999



<TABLE>
<CAPTION>

                                                                       Baron Asset        Baron Growth      Baron Small Cap
                                                                          Fund                Fund               Fund
                                                                   ------------------   ----------------   ----------------
<S>                                                                <C>                  <C>                <C>
Investment income:
 Income:
  Interest                                                           $    6,929,491       $    884,393      $   1,824,376
  Dividends -- unaffiliated issuers (net of foreign tax
    withholding of $0, $56,736, and $0, respectively)                    18,039,687          3,361,851            122,393
  Dividends -- "affiliated" issuers (net of foreign tax
    withholding of $1,284,973, $0, and $0, respectively)                 19,051,856                  0                  0
                                                                     --------------       ------------      -------------
  Total income                                                           44,021,034          4,246,244          1,946,769
                                                                     --------------       ------------      -------------
 Expenses:
  Investment advisory fees                                               59,460,701          3,534,481          5,457,810
  Distribution fees                                                      14,865,186            883,621          1,364,454
  Shareholder servicing agent fees                                        1,496,000            219,820            216,820
  Reports to shareholders                                                 1,376,600            103,500            151,000
  Registration and filing fees                                              261,030             39,830             49,570
  Custodian fees                                                            185,090             21,530             31,470
  Trustee fees                                                               82,480              4,960              7,490
  Professional fees                                                         103,421             47,570             47,710
  Amortization of organization costs                                              0              6,570              5,700
  Miscellaneous                                                              64,610              4,737             10,990
                                                                     --------------       ------------      -------------
  Total operating expenses                                               77,895,118          4,866,619          7,343,014
  Interest expense                                                                0            103,943                  0
                                                                     --------------       ------------      -------------
  Total expenses                                                         77,895,118          4,970,562          7,343,014
                                                                     --------------       ------------      -------------
  Net investment loss                                                   (33,874,084)          (724,318)        (5,396,245)
                                                                     --------------       ------------      -------------
Realized and unrealized gain (loss) on investments:
 Net realized gain (loss) on investments sold in unaffiliated
  issuers                                                                66,923,461         34,354,265        (27,309,728)
 Net realized loss on investments sold in "affiliated" issuers          (20,123,170)                 0         (1,725,521)
 Change in net unrealized appreciation of investments                 1,250,313,281         78,932,635        242,203,032
                                                                     --------------       ------------      -------------
  Net gain on investments                                             1,297,113,572        113,286,900        213,167,783
                                                                     --------------       ------------      -------------
  Net increase in net assets resulting from operations               $1,263,239,488       $112,562,582      $ 207,771,538
                                                                     ==============       ============      =============
</TABLE>


                       See Notes to Financial Statements.


                                      -34-
<PAGE>

                             B A R O N   F U N D S

STATEMENTS OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------




                                                 Baron Asset Fund
                                     ----------------------------------------
                                           For the              For the
                                          Year Ended           Year Ended
                                        September 30,        September 30,
                                             1999                 1998
                                     -------------------  -------------------

INCREASE (DECREASE) IN NET
 ASSETS:
Operations:
 Net investment income (loss)         ($     33,874,084)   $       5,182,423
 Net realized gain (loss) on
  investments sold                           46,800,291          (76,452,243)
 Net change in unrealized
  appreciation (depreciation)
  on investments                          1,250,313,281         (848,684,103)
                                       ----------------    -----------------

  Increase (decrease) in net
    assets resulting from
    operations                            1,263,239,488         (919,953,923)
                                       ----------------    -----------------
Dividends to shareholders from:
 Net investment income                       (4,594,972)                   0
 Net realized gain on investments                     0                    0
                                       ----------------    -----------------
                                             (4,594,972)                   0
                                       ----------------    -----------------
Capital share transactions:
 Proceeds from the sale of shares         2,326,280,913        3,405,277,873
 Net asset value of shares issued
  in reinvestment of dividends                4,175,765                    0
 Cost of shares redeemed                 (2,138,067,002)      (1,299,315,896)
                                       ----------------    -----------------
 Increase in net assets derived
  from capital share transactions           192,389,676        2,105,961,977
 Capital contribution                         1,584,375                    0
                                       ----------------    -----------------
 Net increase (decrease) in net
  assets                                  1,452,618,567        1,186,008,054
Net assets:
 Beginning of year                        4,410,506,448        3,224,498,394
                                       ----------------    -----------------
 End of year                           $  5,863,125,015    $   4,410,506,448
                                       ================    =================
Undistributed net investment
 income at end of year                 $              0    $       4,637,960
                                       ================    =================
Shares of beneficial interest:
 Shares sold                                 45,041,285           69,710,623
 Shares issued in reinvestment
  dividends                                      82,185                    0
 Shares redeemed                            (41,802,254)         (27,334,849)
                                       ----------------    -----------------
 Net increase (decrease)                      3,321,216           42,375,774
                                       ================    =================




<PAGE>

<TABLE>
<CAPTION>
                                              Baron Growth Fund                    Baron Small Cap Fund
                                     ------------------------------------  ------------------------------------
                                          For the            For the            For the            For the
                                         Year Ended         Year Ended         Year Ended         Year Ended
                                       September 30,      September 30,      September 30,      September 30,
                                            1999               1998               1999              1998*
                                     -----------------  -----------------  -----------------  -----------------
<S>                                  <C>                <C>                <C>                <C>
INCREASE (DECREASE) IN NET
 ASSETS:
Operations:
 Net investment income (loss)         ($      724,318)   $       899,890    ($    5,396,245)   ($      826,516)
 Net realized gain (loss) on
  investments sold                         34,354,265         (6,952,711)       (29,035,249)       (26,895,646)
 Net change in unrealized
  appreciation (depreciation)
  on investments                           78,932,635        (73,445,498)       242,203,032        (75,517,990)
                                       --------------    ---------------     --------------     --------------

  Increase (decrease) in net
    assets resulting from
    operations                            112,562,582        (79,498,319)       207,771,538       (103,240,152)
                                       --------------    ---------------     --------------     --------------
Dividends to shareholders from:
 Net investment income                       (486,147)          (282,139)                 0                  0
 Net realized gain on investments                   0           (929,398)                 0                  0
                                       --------------    ---------------     --------------     --------------
                                             (486,147)        (1,211,537)                 0                  0
                                       --------------    ---------------     --------------     --------------
Capital share transactions:
 Proceeds from the sale of shares         193,413,986        236,230,743        403,817,666        692,941,797
 Net asset value of shares issued
  in reinvestment of dividends                461,215          1,161,950                  0                  0
 Cost of shares redeemed                 (182,084,702)      (231,956,848)      (299,634,070)      (185,973,647)
                                       --------------    ---------------     --------------     --------------
 Increase in net assets derived
  from capital share transactions          11,790,499          5,435,845        104,183,596        506,968,150
 Capital contribution                               0                  0                  0                  0
                                       --------------    ---------------     --------------     --------------
 Net increase (decrease) in net
  assets                                  123,866,934        (75,274,011)       311,955,134        403,727,998
Net assets:
 Beginning of year                        315,557,850        390,831,861        403,727,998                  0
                                       --------------    ---------------     --------------     --------------
 End of year                           $  439,424,784    $   315,557,850     $  715,683,132     $  403,727,998
                                       ==============    ===============     ==============     ==============
Undistributed net investment
 income at end of year                 $            0    $       472,714     $            0     $            0
                                       ==============    ===============     ==============     ==============
Shares of beneficial interest:
 Shares sold                                6,776,893          9,436,383         34,490,488         65,055,206
 Shares issued in reinvestment
  dividends                                    18,636             47,958                  0                  0
 Shares redeemed                           (7,201,050)        (9,658,984)       (27,846,667)       (18,168,593)
                                       --------------    ---------------     --------------     --------------
 Net increase (decrease)                     (405,521)          (174,643)         6,643,821         46,886,613
                                       ==============    ===============     ==============     ==============
</TABLE>
- ----------
* For the period October 1, 1997(commencement of operations) to September 30,
1998.




                       See Notes to Financial Statements.

                                      -35-
<PAGE>

                             B A R O N   F U N D S


Notes to Financial Statements
- --------------------------------------------------------------------------------
(1) Significant Accounting Policies.

Baron Asset Fund (the "Trust") is registered under the Investment Company Act of
1940,  as  amended  (the"1940  Act"),  as  a  diversified,  open-end  management
investment company established as a Massachusetts business trust on February 19,
1987.  The Trust  currently  offers  three  series  (individually  a "Fund"  and
collectively  the  "Funds"):  Baron Asset Fund,  started in June of 1987,  Baron
Growth  Fund,  started in January  1995,  and Baron  Small Cap Fund,  started in
October of 1997. On May 19, 1999, Baron Growth & Income Fund changed its name to
Baron Growth Fund. The following is a summary of significant accounting policies
followed by the Funds.  The policies are in conformity  with generally  accepted
accounting principles.

(a)  Security  Valuation.  Portfolio  securities  traded on any  national  stock
exchange or quoted on the NASDAQ  National Market System are valued on the basis
of the last sale price on the date of  valuation  or, in the absence of any sale
on that date,  the last sale price on the date the security  last traded.  Other
securities  are valued at the mean of the most  recent  bid and asked  prices if
market quotations are readily available. Where market quotations are not readily
available  the  securities  are valued at their fair value as determined in good
faith by the  Board of  Trustees,  or by the  Adviser,  pursuant  to  procedures
established by the Trustees.  Money market  instruments held by the Funds with a
remaining  maturity of sixty days or less are valued at  amortized  cost,  which
approximates value.

(b)  Securities   Transactions,   Investment  Income  and  Expense   Allocation.
Securities  transactions  are recorded on a trade date basis.  Realized gain and
loss from securities  transactions  are recorded on an identified cost basis for
financial  reporting  and  federal  income  tax  purposes.  Dividend  income  is
recognized  on the  ex-dividend  date and interest  income is  recognized  on an
accrual basis. Common expenses of the Funds are allocated on a basis deemed fair
and  equitable  by the  Trustees,  usually on the basis of average  net  assets.
Direct expenses are charged to each Fund on a specific identification basis.

(c) Federal Income Taxes. Each Fund of the Trust is treated as a separate entity
for federal  income tax  purposes.  It is the policy of each Fund to continue to
qualify as a regulated  investment  company  under  Subchapter M of the Internal
Revenue Code and to distribute all of its taxable income, including net realized
capital gains, if any, to its  shareholders.  No federal income tax provision is
therefore required.

<PAGE>

(d) Restricted  Securities.  The Funds invest in securities which are restricted
as to public sale in accordance with the Securities Act of 1933. Such assets are
valued at fair value as determined in good faith by the Board of Trustees.

(e) Organization  Costs.  Costs incurred in connection with the organization and
initial  registration  of Baron  Growth  Fund and Baron Small Cap Fund have been
deferred  and are being  amortized  on a  straight-line  basis over a  five-year
period. Baron Capital,  Inc. ("BCI"), a wholly owned subsidiary of Baron Capital
Group, Inc. ("BCG"),  agreed to make advances for organization expenses incurred
and will be reimbursed as the costs are amortized.

(f)  Distributions.  Income  distributions  and capital gain  distributions  are
determined  in  accordance  with  income tax  regulations  which may differ from
generally accepted accounting principles. These differences are primarily due to
differing treatments for net operating losses and distributions from REIT's. For
the year ended September 30, 1999, the following  amounts were  reclassified for
federal income tax purposes:

<TABLE>
<CAPTION>
                              Undistributed            Undistributed
Fund                      Net Investment Income     Realized Gain/Loss     Capital-Paid-In
- ----------------------   -----------------------   --------------------   -----------------
<S>                      <C>                       <C>                    <C>
Baron Asset Fund               $33,831,096              $3,974,320          $ (37,805,416)
Baron Growth Fund              $   737,751              $  260,969          $    (998,720)
Baron Small Cap Fund           $ 5,396,245              $  (16,695)         $  (5,379,550)
</TABLE>

(g) Use of Estimates. The preparation of financial statements in accordance with
generally accepted  accounting  principles requires management to make estimates
and  assumptions  that affect the reported  amounts of assets and liabilities at
the date of financial statements,  and the amounts of income and expenses during
the period. Actual results could differ from those estimates.

- --------------------------------------------------------------------------------
(2) Purchases and Sales of Securities.

Purchases and sales of  securities,  other than short term  securities,  for the
year ended September 30, 1999 were as follows:

Fund                         Purchases            Sales
- ----------------------   -----------------   ---------------
Baron Asset Fund          $1,154,642,273      $908,031,849
Baron Growth Fund         $  182,744,649      $203,437,226
Baron Small Cap Fund      $  244,885,840      $221,936,174

                                   -36-
<PAGE>

                             B A R O N   F U N D S

- --------------------------------------------------------------------------------
(3) Investment Advisory Fees and Other Transactions with Affiliates.

(a)  Investment  Advisory  Fees.  BAMCO,  Inc. (the  "Adviser"),  a wholly owned
subsidiary of BCG,  serves as investment  adviser to the Funds.  As compensation
for  services  rendered,  the Adviser  receives a fee payable  monthly  from the
assets of the Funds equal to 1% per annum of each Fund's average daily net asset
value.

(b) Distribution  Fees. BCI is a registered broker dealer and the distributor of
the shares of the Funds pursuant to a distribution  plan under Rule 12b-1 of the
1940 Act. The  distribution  plan authorizes the Funds to pay BCI a distribution
fee equal on an annual  basis to 0.25% of the Funds'  average  daily net assets.
Brokerage  transactions  for the Funds may be effected by or through BCI. During
the year ended September 30, 1999, BCI earned brokerage commissions as follows:

Fund                      Commissions
- ----------------------   -------------
Baron Asset Fund          $2,525,589
Baron Growth Fund         $  351,548
Baron Small Cap Fund      $  409,592

(c) Trustee Fees.  Certain  Trustees of the Trust may be deemed to be affiliated
with or interested persons (as defined by the 1940 Act) of the Funds' Adviser or
of BCI. None of the Trustees so affiliated received  compensation for his or her
services  as a  Trustee  of the  Trust.  None of the  Funds'  officers  received
compensation from the Funds.

- --------------------------------------------------------------------------------
(4) Capital Loss Carryforward.

Baron  Asset Fund and Baron  Small Cap Fund had capital  loss  carryforwards  at
September 30, 1999, which can be used to offset future capital gains.

                           Capital Loss     Capital Loss
                            Carryovers       Carryovers
Fund                      Expiring 2006     Expiring 2007
- ----------------------   ---------------   --------------
Baron Asset Fund           $22,037,516      $28,197,921
Baron Small Cap Fund                --      $52,251,354

- --------------------------------------------------------------------------------
<PAGE>

(5)  Borrowings.  During the year ended  September  30, 1999,  Baron Growth Fund
borrowed from its custodian bank. The average daily balance of loans outstanding
was $1,726,439 at a weighted average interest rate of 6.021%.

- --------------------------------------------------------------------------------
(6) Restricted Securities.

A summary of the restricted securities held at September 30, 1999 follows:

BARON ASSET FUND
<TABLE>
<CAPTION>
                                                                                     Acquisition
Name of Issuer                                                                           Date            Value
- --------------                                                                       ------------   --------------
<S>                                                                                  <C>            <C>
Common Stock
 Apollo International, Inc. S-A CV Pfd.                                                07/21/99      $  1,000,008
 Chesapeake Healthcare Corp.                                                           12/03/98         4,000,196
 Correctional Management Services Corp.                                                12/30/98         8,000,085
 Vail Resorts, Inc. Class A                                                            05/14/98        88,112,400
Corporate Bonds
 American Mobile Satellite Corp. 6.0% Jr. Sub. Secured Exch. Note due 09/30/2006       01/15/99        21,500,000
                                                                                                     ------------
 Total Restricted Securities: (Cost $146,500,008) (2.09% of Net Assets)                              $122,612,689
                                                                                                     ============
</TABLE>

BARON GROWTH FUND
<TABLE>
<CAPTION>
                                                                                     Acquisition
Name of Issuer                                                                           Date           Value
- --------------                                                                       ------------   -------------
<S>                                                                                  <C>            <C>
Common Stock
Bingham Financial Services Corp. (Cost $1,399,995) (0.20% of Net Assets)                04/27/99      $  864,497
                                                                                                      ==========

</TABLE>
- --------------------------------------------------------------------------------
(7) Capital Contribution.  On March 19, 1999, the Adviser reimbursed Baron Asset
Fund  $1,584,375  for the unrealized  loss relating to the 10/07/98  purchase of
650,000 AMF Bowling,  Inc. Baron Asset Fund recorded a capital  contribution  of
$1,584,375.  The  Adviser  did not  receive  any  shares of Baron  Asset Fund in
exchange for this  contribution.  For tax  purposes,  this capital  contribution
reduced the  realized  gains  (losses) for the fiscal year ended  September  30,
1999.


                                      -37-
<PAGE>

                             B A R O N   F U N D S


(8) Investment in "Affiliates"*

BARON ASSET FUND

<TABLE>
<CAPTION>
                                        Balance of          Gross        Gross Sales
                                      Shares Held on      Purchases          and
           Name of Issuer              Sep. 30, 1998    and Additions     Reductions
- -----------------------------------  ----------------  ---------------  -------------
<S>                                  <C>               <C>              <C>
Alexander's, Inc.                          252,000           98,900
AMF Bowling, Inc.                        9,895,000          650,000         335,000
American Mobile Satellite Corp.          3,500,000
Avatar Holdings, Inc.                      774,000                           24,000
Bristol Hotels & Resorts, Inc.           2,191,150                           90,400
Caliber Learning Network, Inc.           1,840,000                        1,035,400
Cellular Communications of P.R.,         1,272,500                        1,272,500
 Inc.
Choice Hotels Intl., Inc.               13,021,300          204,000
ChoicePoint, Inc.                        1,015,300          624,700
CoreComm, Ltd.+                          1,272,500          932,500
Counsel Corp.                            2,408,200           80,300         318,500
Cross Timbers Oil Co.                    4,747,500                          372,500
DeVry, Inc.                              4,635,200          514,800
Dollar Tree Stores, Inc.                 3,690,000           60,000
DVI, Inc.                                1,605,000           75,000
Education Management Corp. #               880,000        2,020,000
Flextronics Intl., Ltd. $                1,393,000        1,420,000          13,000
Hispanic Broadcasting Corp.              3,270,000                          470,000
 (Formerly Heftel Broadcasting
 Corp. Class A)
Industrie Natuzzi SPA ADR                1,565,500        4,121,500
ITT Educational Services, Inc.           1,562,500          600,000         162,500
Learning Tree Intl., Inc.                3,145,000                        1,145,000
Libbey, Inc.                             2,650,000          270,000
Manor Care, Inc. (Formerly HCR          10,350,700          649,300         600,000
 Manor Care, Inc.)
NTL, Inc.@                               2,724,500          667,136
OM Group, Inc.                           1,557,500          810,000
Prison Realty Trust (Formerly CCA        1,990,000           89,800       1,479,800
 Prison Realty Corp.)
Robert Half Intl., Inc.                  2,335,000        4,815,000          50,000
Saga Communications, Inc. Class A        2,932,002            5,000
Seacor Smit, Inc.                          990,000          352,300          42,300
Smart and Final, Inc.                    2,237,900        1,155,600
Sotheby's Holdings, Inc. Class A        18,030,000        2,745,000
Southern Union Co. %                       832,500        1,397,500
Stein Mart, Inc.                         2,825,000                        1,075,000
Sun Intl. Hotels, Ltd.                   2,875,000          440,000
Sunburst Hospitality Corp.               3,650,036          606,666         281,666
The Sports Club Co.                      1,955,000                        1,955,000
Vail Resorts, Inc. Class A               9,678,900          387,100
Westwood One, Inc (Formerly              1,250,000          635,000         185,000
 Metro Networks, Inc.)&

</TABLE>
<PAGE>

<TABLE>
<CAPTION>
                                        Balance of                               Dividend
                                      Shares Held on         Value                Income
           Name of Issuer              Sep. 30, 1999     Sep. 30, 1999     Oct. 1-Sep. 30, 1999
- -----------------------------------  ----------------  -----------------  ---------------------
<S>                                  <C>               <C>                <C>
Alexander's, Inc.                          350,900          $25,374,456
AMF Bowling, Inc.                       10,210,000           42,116,250
American Mobile Satellite Corp.          3,500,000           61,250,000
Avatar Holdings, Inc.                      750,000           14,250,000
Bristol Hotels & Resorts, Inc.           2,100,750           14,442,656
Caliber Learning Network, Inc.             804,600            1,659,488
Cellular Communications of P.R.,                 0                    0**
 Inc.
Choice Hotels Intl., Inc.               13,225,300          226,483,263
ChoicePoint, Inc.                        1,640,000          110,495,000
CoreComm, Ltd.+                          2,205,000           72,627,155
Counsel Corp.                            2,170,000            7,323,750        $ 2,119,364
Cross Timbers Oil Co.                    4,375,000           59,062,500            318,661
DeVry, Inc.                              5,150,000          103,000,000
Dollar Tree Stores, Inc.                 3,750,000          149,765,625
DVI, Inc.                                1,680,000           27,510,000
Education Management Corp. #             2,900,000           35,887,500
Flextronics Intl., Ltd. $                2,800,000          162,925,000
Hispanic Broadcasting Corp.              2,800,000          213,150,000
 (Formerly Heftel Broadcasting
 Corp. Class A)
Industrie Natuzzi SPA ADR                5,687,000          111,607,375          4,102,391
ITT Educational Services, Inc.           2,000,000           39,000,000
Learning Tree Intl., Inc.                2,000,000           33,125,000
Libbey, Inc.                             2,920,000           86,322,500            855,750
Manor Care, Inc. (Formerly HCR          10,400,000          178,750,000
 Manor Care, Inc.)
NTL, Inc.@                               3,391,636                    0**
OM Group, Inc.                           2,367,500           90,852,813            845,675
Prison Realty Trust (Formerly CCA          600,000                    0**       2,598,120
 Prison Realty Corp.)
Robert Half Intl., Inc.                  7,100,000          170,400,000
Saga Communications, Inc. Class A        2,937,002           67,551,046
Seacor Smit, Inc.                        1,300,000           66,625,000
Smart and Final, Inc.                    3,393,500           33,935,000            111,895
Sotheby's Holdings, Inc. Class A        20,775,000          536,254,687          8,100,000
Southern Union Co. %                     2,230,000           42,370,000
Stein Mart, Inc.                         1,750,000                    0**
Sun Intl. Hotels, Ltd.                   3,315,000           79,145,625
Sunburst Hospitality Corp.               3,975,036           24,595,536
The Sports Club Co.                              0                    0**
Vail Resorts, Inc. Class A              10,066,000          228,767,775
Westwood One, Inc (Formerly              1,700,000                    0**
                                                       ----------------
 Metro Networks, Inc.)&
                                                       $3,116,625,000          $19,051,856
                                                       ================        ===========
</TABLE>

 * "Affiliated" issuers, as defined in the Investment Company Act of 1940, are
   issuers in which Baron Asset Fund held 5% or more of the outstanding voting
   securities as of September 30, 1999.
** As of September 30, 1999, no longer an affiliate.
 + Received 735,000 shares from 3:2 stock split.
 # Received 880,000 shares from 2:1 stock split .
 $ Received 1,390,000 shares from 2:1 stock split.
 @ Received 369,636 shares from bond conversion.
 % Received 144,125 shares from 5% stock dividend.
 & Received 625,000 shares from merger


                                      -38-
<PAGE>

                             B A R O N   F U N D S

(8) Investment in "Affiliates"* (continued)


BARON SMALL CAP FUND


                                    Balance of          Gross        Gross Sales
                                 Shares Held on      Purchases          and
         Name of Issuer           Sep. 30, 1998    and Additions     Reductions
- ------------------------------  ----------------  ---------------  -------------

AVTEAM, Inc.                            750,000
Career Education Corp.                  520,000         386,700          12,800
Equity Marketing, Inc.                  400,000          25,250         125,250
IT Group, Inc.                        1,750,000          50,000         450,000
Mortons Restaurant Group, Inc.          350,000          25,000          25,000
ResortQuest Intl., Inc.                 825,000          25,000         100,000



<TABLE>
<CAPTION>
                                     Balance of                             Dividend
                                   Shares Held on        Value               Income
         Name of Issuer             Sep. 30, 1999    Sep. 30, 1999    Oct. 1-Sep. 30, 1999
- --------------------------------  ----------------  ---------------  ---------------------
<S>                               <C>               <C>              <C>
AVTEAM, Inc.                            750,000      $ 5,156,250
Career Education Corp.                  893,900       25,923,100
Equity Marketing, Inc.                  300,000                0**
IT Group, Inc.                        1,350,000       12,909,375
Mortons Restaurant Group, Inc.          350,000        6,146,875
ResortQuest Intl., Inc.                 750,000                0**
                                                    ------------
                                                     $50,135,600              $ 0
                                                    ============              ===
</TABLE>

 * "Affiliated" issuers, as defined in the Investment Company Act of 1940, are
   issuers in which Baron Small Cap Fund held 5% or more of the outstanding
   voting securities as of September 30, 1999.
** As of September 30, 1999, no longer an affiliate.



                                      -39-
<PAGE>

                             B A R O N   F U N D S


- --------------------------------------------------------------------------------
(9) Financial Highlights



BARON ASSET FUND
Selected data for a share of beneficial interest outstanding throughout each
year:
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                             Year Ended September 30,
                                               1999            1998            1997             1996
                                         ---------------  -------------  ---------------  ---------------
<S>                                      <C>              <C>            <C>              <C>
Net asset value, beginning of year         $     39.96     $    47.43      $     35.50      $     29.30
                                           -----------     ----------      -----------      -----------
Income from investment
 operations
Net investment income (loss)                     (0.30)          0.05            (0.14)           (0.06)
Net realized and unrealized gains
 (losses) on investments                         11.95          (7.52)           12.11             6.29
                                           -----------     ----------      -----------      -----------
  Total from investment
   operations                                    11.65          (7.47)           11.97             6.23
                                           -----------     ----------      -----------      -----------
Less distributions
Dividends from net investment
 income                                          (0.04)          0.00             0.00             0.00
Distributions from net realized gains             0.00           0.00            (0.04)           (0.03)
                                           -----------     ----------      -----------      -----------
  Total distributions                            (0.04)          0.00            (0.04)           (0.03)
                                           -----------     ----------      -----------      -----------
Net asset value, end of year               $     51.57     $    39.96      $     47.43      $     35.50
                                           ===========     ==========      ===========      ===========
  Total return                                    29.2%*        (15.7%)           33.8%            21.3%
                                           -----------     ----------      -----------      -----------
Ratios/Supplemental data
Net assets (in millions), end of year      $   5,863.1     $  4,410.5       $  3,224.5       $  1,166.1
Ratio of expenses to average net
 assets                                           1.31%          1.32%            1.35%            1.40%
Ratio of net investment income
 (loss) to average net assets                    (0.57%)         0.11%           (0.52%)          (0.29%)
Portfolio turnover rate                          15.64%         23.43%           13.23%           19.34%

</TABLE>


<PAGE>


<TABLE>
<CAPTION>
                                                                     Year Ended September 30,
                                              1995          1994         1993         1992         1991         1990
                                         -------------  -----------  -----------  -----------  -----------  -----------
<S>                                      <C>            <C>          <C>          <C>          <C>          <C>
Net asset value, beginning of year         $   22.82     $  21.91     $  16.20     $  14.80     $  10.88     $  17.22
                                           ---------     --------     --------     --------     --------     --------
Income from investment
 operations
Net investment income (loss)                   (0.09)       (0.14)       (0.13)       (0.08)        0.07         0.21
Net realized and unrealized gains
 (losses) on investments                        7.23         1.82         6.00         1.52         4.05        (5.14)
                                           ---------     --------     --------     --------     --------     --------
  Total from investment
   operations                                   7.14         1.68         5.87         1.44         4.12        (4.93)
                                           ---------     --------     --------     --------     --------     --------
Less distributions
Dividends from net investment
 income                                         0.00         0.00         0.00        (0.04)       (0.20)      ( 0.16)
Distributions from net realized gains          (0.66)       (0.77)       (0.16)        0.00         0.00       ( 1.25)
                                           ---------     --------     --------     --------     --------     --------
  Total distributions                          (0.66)       (0.77)       (0.16)       (0.04)       (0.20)      ( 1.41)
                                           ---------     --------     --------     --------     --------     --------
Net asset value, end of year               $   29.30     $  22.82     $  21.91     $  16.20     $  14.80     $  10.88
                                           =========     ========     ========     ========     ========     ========
  Total return                                  32.3%         8.0%        36.5%         9.7%        38.3%       (30.7%)
                                           ---------     --------     --------     --------     --------     --------
Ratios/Supplemental data
Net assets (in millions), end of year      $   290.0      $  80.3      $  59.9      $  43.8      $  47.4      $  40.0
Ratio of expenses to average net
 assets                                         1.44%        1.59%        1.85%        1.68%        1.70%        1.78%
Ratio of net investment income
 (loss) to average net assets                  (0.55%)      (0.71%)      (0.69%)      (0.53%)       0.49%        1.53%
Portfolio turnover rate                        35.15%       55.87%      107.94%       95.45%      142.73%       97.81%

</TABLE>

*Had the adviser not made the capital contribution, the adjusted total return
would have been 29.1% for the year ended September 30, 1999.

The Fund's adviser and/or Baron Capital reimbursed the Fund for expenses
aggregating $8,561 (less than $0.01 per share) in 1990. The reimbursement
amounts are excluded from the expense data above.



                                      -40-
<PAGE>

                             B A R O N   F U N D S


- --------------------------------------------------------------------------------
(9) Financial Highlights (CONTINUED)


BARON GROWTH FUND
Selected data for a share of beneficial interest outstanding throughout each
year:
- --------------------------------------------------------------------------------


<TABLE>
<CAPTION>
                                                                                Year Ended September 30,
                                                              1999           1998          1997         1996          1995*
                                                         -------------  -------------  -----------  -----------  --------------
<S>                                                      <C>            <C>            <C>          <C>          <C>
Net asset value, beginning of year                         $  20.32       $  24.89       $  18.40     $  14.77     $ 10.00
                                                           --------       --------       --------     --------     -------
Income from investment operations
Net investment income (loss)                                  (0.04)          0.06           0.06         0.11        0.04
Net realized and unrealized gains (losses)
 on investments                                                8.82          (4.56)          6.68         3.66        4.73
                                                           --------       --------       --------     --------     -------
  Total from investment operations                             8.78          (4.50)          6.74         3.77        4.77
                                                           --------       --------       --------     --------     -------
Less distributions
Dividends from net investment income                          (0.04)         (0.02)         (0.09)       (0.04)       0.00
Distributions from net realized gains                          0.00          (0.05)         (0.16)       (0.10)       0.00
                                                           --------       --------       --------     --------     -------
  Total distributions                                         (0.04)         (0.07)         (0.25)       (0.14)       0.00
                                                           --------       --------       --------     --------     -------
Net asset value, end of year                               $  29.06       $  20.32       $  24.89     $  18.40     $ 14.77
                                                           ========       ========       ========     ========     =======
  Total return                                                43.2  %        (18.1%)         37.1%        25.8%       47.7%
                                                           --------       --------       --------     --------     -------
Ratios/Supplemental data
Net assets (in millions), end of year                      $  439.4       $  315.6       $  390.8      $ 207.2     $  28.6
Ratio of total expenses to average net assets                  1.40%          1.43%          1.40%        1.54%       1.99%**
Less: Ratio of interest expense to average net assets         (0.03%)        (0.06%)         0.00%        0.00%       0.00%
                                                           --------      ---------      ---------    ---------     --------
Ratio of operating expenses to average net assets              1.37%          1.37%          1.40%        1.54%       1.99%**
                                                           ========      =========      =========    =========     ========
Ratio of net investment income (loss) to average
 net assets                                                   (0.20%)         0.21%          0.37%        1.20%       1.13%**
Portfolio turnover rate                                       53.36%         40.38%         25.17%       40.27%      40.56%

</TABLE>
*    For the period January 3, 1995 (commencement of operations) to September
     30, 1995.

**   Annualized.

The Fund's custodian offset custody fees of $5,252 (less than $.01 per share)
in 1996 and $12,003 (less than $0.01 per share) in 1995.
The expense offset amounts are included in expense data above.


<PAGE>


BARON SMALL CAP FUND
Selected data for a share of beneficial interest outstanding throughout each
year:



                                                       Year ended  September 30,
                                                          1999          1998*
                                                      ------------ -------------

Net asset value, beginning of year                      $   8.61      $  10.00
                                                        --------      --------
Income from investment operations
Net investment loss                                        (0.10)        (0.02)
Net realized and unrealized gains (losses)
 on investments                                             4.86         (1.37)
                                                        --------      --------
  Total from investment operations                          4.76         (1.39)
                                                        --------      --------
Less distributions
Dividends from net investment income                        0.00          0.00
Distributions from net realized gains                       0.00          0.00
                                                        --------      --------
  Total distributions                                       0.00          0.00
                                                        --------      --------
Net asset value, end of year                            $  13.37      $   8.61
                                                        ========      ========
  Total return                                             55.3  %       (13.9%)
                                                        --------      --------
Ratios/Supplemental data
Net assets (in millions), end of year                   $  715.7      $  403.7
Ratio of expenses to average net assets                     1.34%         1.39%
Ratio of net investment loss to average net assets         (0.99%)       (0.20%)
Portfolio turnover rate                                    42.69%        59.68%


*    For the period October 1, 1997 (commencement of operations) to
     September 30, 1998.

                                      -41-
<PAGE>

                             B A R O N   F U N D S


Report of Independent Accountants
- --------------------------------------------------------------------------------

- -----------------------
TO THE SHAREHOLDERS
AND BOARD OF TRUSTEES OF
BARON ASSET FUND:
- -----------------------

     In our opinion,  the accompanying  statements of assets and liabilities and
statements  of net  assets,  and the related  statements  of  operations  and of
changes in net assets and financial  highlights  present fairly, in all material
respects, the financial position of Baron Asset Fund (comprising,  respectively,
Baron Asset Fund,  Baron Growth Fund  (formerly  Baron Growth & Income Fund) and
Baron Small Cap Fund)  (collectively  the  "Funds") at September  30, 1999,  the
results of their  operations  for the year then ended,  the changes in their net
assets  for each of the two years in the  period  then  ended and the  financial
highlights for the periods  presented,  in conformity  with  generally  accepted
accounting  principles.  These  financial  statements  and financial  highlights
(hereafter referred to as "financial  statements") are the responsibility of the
Funds'  management;  our  responsibility  is to  express  an  opinion  on  these
financial  statements  based on our  audits.  We  conducted  our audits of these
financial  statements in accordance with generally accepted auditing  standards,
which require that we plan and perform the audit to obtain reasonable  assurance
about whether the financial  statements  are free of material  misstatement.  An
audit includes examining,  on a test basis,  evidence supporting the amounts and
disclosures in the financial  statements,  assessing the  accounting  principles
used and  significant  estimates made by management,  and evaluating the overall
financial  statement  presentation.  We believe that our audits,  which included
confirmation  of  securities at September  30, 1999 by  correspondence  with the
custodian  and  brokers,  provide a reasonable  basis for the opinion  expressed
above.


                                                     PricewaterhouseCoopers LLP


New York, New York
November 17, 1999








- --------------------------------------------------------------------------------

     Any  statements  contained in this annual  report which are not  historical
facts are forward-looking  statements;  and,  therefore,  many important factors
could   cause   actual   results  to  differ   materially   from  those  in  the
forward-looking  statements.  Such  factors  include,  but are not  limited  to,
changes  (legislative or otherwise) in the industries in which the Funds invest,
as well as changes relating to taxes and mutual funds. The "Investment  Policies
and Risks" section of the Prospectus  discusses certain factors that could cause
actual  results  to  differ  materially  from  those  in  such   forward-looking
statements.


                                     -42-
<PAGE>

                           B A R O N      F U N D S

- --------------------------------------------------------------------------------

            COMPARISON OF THE CHANGE IN VALUE OF $10,000 INVESTMENT
              IN BARON ASSET FUND IN RELATION TO THE RUSSELL 2000*


                              Baron Asset Fund                 Russell 2000
                              ----------------                 ------------
                                   10000                          10000
1987                               11950                          10479
1988                               13234                           9353
1989                               18521                          11366
1990                               12838                           8282
1991                               17760                          12018
1992                               19484                          13091
1993                               26595                          17436
1994                               28728                          17892
1995                               38003                          22079
1996                               46098                          24979
1997                               61656                          33269
1998                               51946                          26943
1999                               67090                          32080


* The Russell 200 is an unmanaged index of small and mid-sized companies
- --------------------------------------------------------------------------------


BARON ASSET FUND

Baron  Asset  Fund's  performance  in the fiscal year ended  September  1999 was
strong as markets  recovered  from  depressed  levels last fall. The Fund gained
29.2%  during the year and  significantly  outperformed  the Russell  2000 index
which gained 19.1%. The Fund kept pace with the S&P 500 which gained 27.8%.

Baron Asset Fund invests in small and medium sized companies.  The relative bear
market in small cap stocks  continued in the first half of fiscal year 1999.  In
the  sixteen-year  period since 1983 the  performance  of market  averages  that
represent small companies has significantly under-performed market averages that
represent more established,  large companies.  The resulting valuations of small
cap  stocks in  general  are  compelling.  Small cap  stocks  normally  trade at
valuations  relative to their  earnings  substantially  above those of large cap
stocks,  reflecting superior growth  expectations.  Only twice before have small
cap stocks traded at valuations  relative to their  earnings  equal to large cap
companies.  In both instances the attractive  valuations led to multi-year small
cap rallies. Today, valuations remain at those extremely attractive levels.

<PAGE>
Baron Asset Fund's  investment style is best categorized as a value  orientation
towards growth.  Purchase great businesses with exciting growth opportunities at
value-based  attractive prices.  The Fund has  characteristics of both value and
growth. Value stocks dramatically  under-performed  growth stocks in Fiscal Year
1999.  The Russell  2000 growth  index gained 32.6% while the Russell 2000 value
index gained only 5.8% in the year ended September 30. Baron Asset Fund with its
under-weighting in the technology sector should benefit when value comes back in
favor.

The  Fund's  performance  was not  uniform  across  the year.  Baron  Asset Fund
performed  extremely  well in the first half of the fiscal year. The Fund gained
35.7% and  significantly  outperformed  the  performance  of the  Russell  2000,
+10.0%, and the performance of the S&P 500, +27.2%. The Fund performed poorly in
the second  half of the year,  losing 4.9% as compared to a gain for the Russell
2000 of 8.3% and 0.3% for the S&P 500.

The  performance  of Baron Asset Fund was not uniform across  sectors.  The Fund
realized  large  gains  in  Financial   Services,   Media  &  Entertainment  and
Communications.  The Fund also  performed  well in its  investments  in  Retail,
Manufacturing  and Hotels and Lodging.  The Fund realized losses in Health Care,
Business Services, Education and Leisure.

In fiscal year 2000, the Fund will continue to invest in companies  that, in our
opinion,  are undervalued  relative to their long-term growth prospects and have
the ability to sustain  superior  levels of  profitability.  The companies  will
continue to be identified through our independent research efforts. Companies in
which we invest will have the  potential  to increase in price at least 50% over
the next two years.  The Fund will remain  diversified  not only by industry and
investment  theme,  but also by external  factors we have  identified that could
affect company performance. This approach to investing in companies, not trading
of stocks,  could allow the Fund to continue to produce  above  average rates of
return while  keeping an  attractive  risk  profile.  The  extremely  attractive
valuation  levels of  companies  within the small cap  universe  and the current
prices of some of our longer term core positions  leave us looking  forward to a
successful 2000.



                                      -43-
<PAGE>

                           B A R O N      F U N D S




- --------------------------------------------------------------------------------

            COMPARISON OF THE CHANGE IN VALUE OF $10,000 INVESTMENT
              IN BARON GROWTH FUND IN RELATION TO THE RUSSELL 2000*


                     Baron Growth & Income            Russell 2000
                     ---------------------            ------------
                            10000                        10000
1995                        14770                        12730
1996                        18575                        14408
1997                        25469                        19181
1998                        20855                        15534
1999                        29868                        18496

Information Presented by Fiscal Year as of September 30
Past performance is not predictive of future performance

* The Russell 200 is an unmanaged index of small and mid-sized companies
- --------------------------------------------------------------------------------




- --------------------------------------------------------------------------------
BARON GROWTH FUND

Baron Growth  Fund's  performance  in the fiscal year ended  September  1999 was
strong as markets  recovered  from  depressed  levels last fall. The Fund gained
43.2%  during the year and  significantly  outperformed  the Russell  2000 index
which gained 19.1% and the S&P 500, which gained 27.8%.

Baron  Growth  Fund  invests  in small  sized  companies.  While the  investment
performance of smaller companies in fiscal 1999 was acceptable,  rebounding from
a poor fiscal 1998, the performance of smaller  companies  continues to lag that
of larger more established  companies.  This trend has continued for most of the
last  sixteen  years.  The  resulting  valuations  of smaller  companies  remain
compelling.  While Baron Growth Fund has been able to keep pace with the S&P 500
in the  nearly  five years  since its  inception,  +25.9%  per year,  it is well
positioned  to  take  advantage  of a  better  small  cap  environment  when  it
materializes.

The Fund's  performance  was not  uniform  across the year.  Baron  Growth  Fund
performed  exceedingly  well in the first half of the fiscal year gaining 31.9%,
and out-performed the performance of the Russell 2000 which gained 10.0% and the
S&P 500 which gained 27.2%.  The Fund  continued to do well in the June quarter,
+17.5%,  but lost 7.5% in the  September  quarter.  For the  second  half of the
fiscal  year the Fund gained 8.7% as compared to +0.3% and +8.3% for the S&P 500
and Russell 2000 respectively.

The  performance of Baron Growth Fund was not uniform across  sectors.  The Fund
realized  large gains in Financial  Services and  Communications.  The Fund also
performed well in its investments in Media and Entertainment,  Manufacturing and
Hotels and Lodging.  The Fund realized losses in Health Care, Business Services,
Education and Leisure.


In fiscal year 2000 the Fund will  continue  to be  invested in small  companies
that have the  potential to appreciate in value at least 50% during the next two
years.  The  Fund's  portfolio  is  well  positioned  to take  advantage  of the
attractive valuations that now exist within the small cap universe.


                                     -44-
<PAGE>

                           B A R O N      F U N D S




- --------------------------------------------------------------------------------

             COMPARISON OF THE CHANGE IN VALUE OF $10,000 INVESTMENT
            IN BARON SMALL CAP FUND IN RELATION TO THE RUSSELL 2000*


                                Baron Small Cap Fund           Russell 2000
                                --------------------           ------------
                                       10000                      10000
1998                                    8610                       8085
1999                                   13370                       9626

Information Presented by Fiscal Year as of September 30
Past performance is not predictive of future performance

* The Russell 200 is an unmanaged index of small and mid-sized companies
- --------------------------------------------------------------------------------



BARON SMALL CAP FUND

Baron Small Cap Fund's  performance in the fiscal year ended  September 1999 was
strong as markets  recovered  from  depressed  levels last fall. The Fund gained
55.3%  during the year and  significantly  outperformed  the Russell  2000 index
which gained 19.1% and the S&P 500 which gained 27.8%. In its first two years of
operation the Fund, was up 33.7%, and has significantly outperformed the Russell
2000 which lost 3.6% in the two years ended September 30.

The Fund's performance was strong both on an absolute basis, and relative to its
small cap peers throughout the Fiscal year. The Fund performed  exceedingly well
in the first  three  quarters of the fiscal year and managed a small gain in the
September quarter in which both the Russell 2000 and S&P 500 fell 6.3%. The Fund
realized  its  greatest  gains in the first  fiscal  quarter,  +22.4%,  a strong
quarter for U.S.  stocks in general.  The Fund  realized its  greatest  relative
gains in the March quarter, up 12.8%, while the Russell 2000 fell 5.4%.

Quarterly Table




Fiscal Year 1998      Baron Small Cap Fund     Russell 2000
- ------------------   ----------------------   -------------
4th Qtr 1998                  +22.4%              +16.3%
1st Qtr 1999                  +12.8%               -5.4%
2nd Qtr 1999                  +12.4%              +15.6%
3rd Qtr 1999                  + 0.1%               -6.3%
Fiscal Year                   +55.3%              +19.1%

The performance of Baron Small Cap Fund was not uniform across sectors. The Fund
realized large gains in  Communications  and Media and  Entertainment.  The Fund
also performed well in its investments in Retail, Business Services,  Hotels and
Lodging and Leisure. The Fund realized losses in Health Care and Manufacturing.

In fiscal year 2000, the Fund will continue to invest in companies  that, in our
opinion,  are  undervalued  relative to their  long-term  growth  prospects  and
ability to sustain superior levels of profitability. The companies will continue
to be identified through our independent research efforts. Companies in which we
invest  have the  potential  to increase in price at least 50% over the next two
years. The Fund will continue to invest in smaller "Growth  Companies",  "Fallen
Angels" and "Special Situations".  The industries that continue to be of special
interest are in Communications,  Media and Entertainment and specialized service
companies that provide services to these  industries.  The attractive  valuation
levels of companies  within the small cap universe leave us looking forward to a
successful 2000.


                                      -45-


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission