VANGUARD SPECIALIZED PORTFOLIOS INC
N-30D, 1999-09-29
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<PAGE>   1
VANGUARD
SPECIALIZED FUNDS

VANGUARD ENERGY FUND

VANGUARD GOLD AND PRECIOUS METALS FUND

VANGUARD HEALTH CARE FUND

VANGUARD UTILITIES INCOME FUND

VANGUARD REIT INDEX FUND

[PHOTO]

SEMIANNUAL
REPORT
July 31, 1999

[THE VANGUARD GROUP LOGO]

<PAGE>   2

AT VANGUARD, WE BELIEVE THAT TRADITION MATTERS

Our 9,000 crew members embrace the traditional values on which our success is
built, including integrity, hard work, thrift, teamwork, and fair dealing on
behalf of our clients.

Our report cover pays homage to three anniversaries, each of great significance
to The Vanguard Group:

- -  The 200th anniversary of the Battle of the Nile, which commenced on August
   1, 1798. HMS Vanguard, the victorious British flagship at the Nile, is our
   namesake. And its motto-- "Leading the way"--serves as a guiding principle
   for our company.

- -  The 100th birthday, on July 23, 1998, of Walter L. Morgan, founder of
   Wellington Fund, the oldest member of what became The Vanguard Group. Mr.
   Morgan was friend and mentor to Vanguard founder John C. Bogle, and helped
   to shape the standards and business principles that Mr. Bogle laid down for
   Vanguard at its beginning nearly 25 years ago: a stress on balanced,
   diversified investments; insistence on fair dealing and candor with clients;
   and a focus on long-term investing. To our great regret, Mr. Morgan died on
   September 2, 1998.

- -  The 70th anniversary, on December 28, 1998, of the incorporation of Vanguard
   Wellington Fund. It is the nation's oldest balanced mutual fund, and one of
   only a handful of funds created in the 1920s that are still in operation.

Although Vanguard constantly tackles new challenges, adopts new technology, and
develops new services, we treasure the traditions and values that set us apart
in a crowded, competitive industry. And we salute our shareholders, whose
support and trust we strive to earn each and every day.

                                    [GRAPHIC]

                                    CONTENTS


                                  A MESSAGE TO
                                OUR SHAREHOLDERS
                                       1

                                 THE MARKETS IN
                                  PERSPECTIVE
                                       6

                                  REPORTS FROM
                                  THE ADVISERS
                                       8

                                 FUND PROFILES
                                       12

                             PERFORMANCE SUMMARIES
                                       20

                              FINANCIAL STATEMENTS
                                       23

                        All comparative mutual fund data
                        are from Lipper or Morningstar,
                            unless otherwise noted.

<PAGE>   3

FELLOW SHAREHOLDER,

[PHOTO]                                 [PHOTO]
John J. Brennan                         John C. Bogle
Chairman & CEO                          Senior Chairman

During the six months ended July 31, 1999, the first half of the fiscal year
for the Vanguard Specialized Funds, the bull market for U.S. stocks slowed
although the market's returns were generally in line with long-term norms.

       Amid the slowdown, there was a change in market leadership.
Once-top-performing sectors offered lesser returns, while segments that had
lagged moved to the forefront. In this environment, the returns for our funds
ranged from a small gain of +2.6% for the Health Care Fund to a tremendous
advance of +36.4% for the Energy Fund. The table at right presents the
six-month total returns (capital change plus reinvested dividends) of each
fund, along with those of its comparative fund group and its target index.

       Details on each fund, including per-share net asset values, income
dividends, and any capital gains distributions, are presented in the table that
follows this letter.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------
                                                          TOTAL RETURNS
                                                         SIX MONTHS ENDED
                                                          JULY 31, 1999
- -------------------------------------------------------------------------
<S>                                                          <C>
VANGUARD ENERGY FUND                                          +36.4%
Average Natural Resources Fund                                +35.7
- -------------------------------------------------------------------------
VANGUARD HEALTH CARE FUND                                     + 2.6%
Average Health-Care Fund                                      - 1.3
- -------------------------------------------------------------------------
S&P 500 Index                                                 + 4.5%
- -------------------------------------------------------------------------
VANGUARD GOLD AND PRECIOUS
  METALS FUND                                                 +10.2%
Average Gold Fund                                             - 6.6
Salomon Smith Barney World
  Equity Gold Index                                           +12.3
- -------------------------------------------------------------------------
VANGUARD UTILITIES INCOME FUND                                + 3.0%
Average Utility Fund                                          + 6.8
Utilities Composite Index*                                    + 4.0
- -------------------------------------------------------------------------
VANGUARD REIT INDEX FUND                                      + 4.4%
Average Real Estate Fund                                      + 5.1
Morgan Stanley REIT Index                                     + 4.1
- -------------------------------------------------------------------------
</TABLE>

*Weighted 63.75% S&P Utilities Index, 21.25% S&P
 Telephone  Index, and 15% Lehman Brothers
 Utility Bond Index.

THE PERIOD IN REVIEW

The U.S. economy's impressive expansion, a strong showing in corporate profits,
and a general improvement in business conditions around the world pushed stock
prices higher during the six months ended July 31.

       The U.S. stock market advanced broadly. The Wilshire 5000 Total Market
Index, which tracks the entire U.S. stock market, was up +4.4% during the
half-year. Small-capitalization stocks, which returned +4.9% (as measured by
the Russell 2000 Index), slightly outperformed large-caps, which gained +4.5%
(as measured by the Standard & Poor's 500 Index). The market's gain was not
straight up, however. The Wilshire 5000 Index declined in three of the six
months, including a -3.1% slide in July. "Reversion to the mean"--the strong
tendency of the returns on financial assets to move toward long-term
averages--appeared among value stocks. Such stocks--marked by below-average
share prices in relation to earnings, dividends, and book value--led the market
after having lagged growth stocks for most of the past five years. Such
value-oriented sectors as energy, materials & processing, and producer durables
were the big achievers during the half-year, boosted by higher demand and
higher prices for oil and a number of other commodities. The health-care sector
slumped.

                                       1

<PAGE>   4

       As is often the case, good news about economic growth was bad news for
the bond market. Throughout the period, bond investors grew increasingly
concerned that low unemployment (which puts pressure on employers to raise
wages) and a rebound in commodity prices (which can increase the prices of
finished goods) would push up overall inflation. As a result, the yields of
fixed-income securities moved higher across the board during the half-year.
With yields rising, bond prices fell. The Lehman Brothers Aggregate Bond Index,
a proxy for the U.S. bond market, declined -2.5% for the six months.

ENERGY FUND

Vanguard Energy Fund had a total return of +36.4% during the semiannual period,
a snappy turnaround from the -21.2% decline it posted for the twelve months
ended January 31. Virtually all of the fund's gain came in March and April in
response to rising prices for oil and natural gas and evidence of a recovery in
key Asian nations. Energy stocks were the market's leaders during the six-month
period. Our fund narrowly outpaced the +35.7% return of the average natural
resources fund, which tends to invest not only in energy companies but also in
mining companies, forestry, and other sectors. After lagging the S&P 500 Index
in the past two fiscal years, both our fund and its average peer drubbed the
benchmark during the half-year, returning roughly eight times as much. Of
course, the index is hardly an ideal benchmark, since it is a diversified
basket of large companies. As of July 31, energy stocks made up only about 7%
of the index.

       A jump of some 67% in the price of oil--from around $12 per barrel on
January 31 to more than $20 on July 31--accounted for the sector's rally. The
rise--like the decline in oil prices in 1998--was quite simply the result of
supply and demand. OPEC and key non-OPEC nations agreed in March to reduce
daily oil production by about 2.5%. And worldwide consumption rose, aided by
strong economic activity in the United States and a resumption of growth in
Asia. Despite a mild winter, the North American natural gas market was also
strong: Spot prices shot up about 35% during the half-year.

       Although the major oil companies, which combine exploration, refining,
and retail operations, performed well during the period, the biggest gains were
recorded by oil-services firms, such as Baker Hughes, which rocketed more than
+108%.

GOLD AND PRECIOUS METALS FUND

Vanguard Gold and Precious Metals Fund gained +10.2% for the half-year ended
July 31. We salute the fund's adviser, M&G Investment Management, whose adroit
positioning of the portfolio provided this excellent return--leagues better
than the -6.6% decline of the average gold fund--in a difficult market. The
price of gold fell by about -11.2% as central banks around the world continued
to sell the metal at auction. Silver declined by about -4.2%. Platinum was
essentially unchanged, and copper jumped about +16.7%. The fund's return was a
bit shy of the +12.3% return of the Salomon Smith Barney World Equity Gold
Index. The sector's overall gain was especially welcome because it followed a
trying run of losses that extended over three fiscal years.

       Strong stock selection in nongold companies, such as platinum and
diversified- metals producers, contributed significantly to performance. Impala
Platinum Holdings and Anglo American Platinum, the two biggest platinum
producers in the world and two of the fund's largest holdings, soared to total
returns of +106% and +63%, respectively. Freeport-McMoRan Copper & Gold,
another sizable holding, gained +66%. Of course, not all of the adviser's
selections were prescient; Euro-Nevada Mining, the fund's seventh-largest
stake, lost -30% of its value during the period.

                                       2

<PAGE>   5

HEALTH CARE FUND

After a long run of superior performance--the average health-care fund gained
an average of +20.8% a year during the ten years ended January 31--health-care
stocks finally cooled during the six months ended July 31. Vanguard Health Care
Fund did not avoid the chill, but it did well to post a +2.6% gain for the
half-year. Its performance easily exceeded those of both the average
health-care fund, which lost -1.3%, and the health-care stocks in the S&P 500
Index, which were down -7.6%. We trailed the index's overall gain of +4.5%,
however. Although we expect such cyclicality in a single economic sector--even
one as broad as health care--we recognize that shareholders may have been
surprised. The last time your fund's semiannual return was lower than +2.6% was
in the first six months of fiscal 1994. In the interim, the fund gained an
amazing +16% or more in seven of nine fiscal half-years.

       The slump in health-care stocks was mainly a result of talk in the
nation's capital about including prescription drug coverage in the Medicare
program, which raised the possibility of drug price regulation. As was the case
in 1993, when the Clinton administration sought to institute a national
health-care program, some investors envisioned restraints on pharmaceutical
firms' profits. As a result, stocks of major drug makers suffered. Pfizer, for
instance, shed -20.7% of its value.

       One health-care stock that was featured prominently in the news during
the period was McKesson HBOC, in which the fund held roughly the market weight
(1.6%) at the beginning of the fiscal year. The stock's price plummeted after
the company announced that it would lower its previously reported earnings as a
result of accounting irregularities at its recently acquired HBO unit. McKesson
shed -58% of its market value during the six-month period. Our adviser,
Wellington Management Company, believed that the market had overreacted to the
news, and added substantially to the fund's stake in McKesson after it tumbled,
bringing the fund's weighting in the stock to roughly 3% at the end of the
period.

       There were, of course, some bright spots during the period. The fund's
Japanese stocks--a group of 13 issues that made up nearly 9% of assets on July
31--gained +25.9% in U.S. dollar-terms. We note that the fund may invest up to
30% of its assets in foreign stocks, which are subject to currency risk in
addition to the ordinary risks of domestic equities.

UTILITIES INCOME FUND

The Utilities Income Fund had a total return of +3.0% for the half-year,
trailing both the Utilities Composite Index (which posted a +4.0% return) and
the average utility fund (+6.8%). The fund fell short of its average peer
primarily because our adviser, Wellington Management Company, pursuing its
mandate to provide income, continued to focus on electric company stocks. The
average utility fund invested more heavily in telecommunications stocks, which
were the industry's hottest players. In addition, our choices within the
telecommunications group were subpar performers. Many telecom stocks pay little
or no dividends, making them off-limits for the Utilities Income Fund. On the
positive side, the fund's natural gas distribution stocks climbed about +21% in
the second quarter alone, aided by rising energy prices.

       Rising interest rates, which mean lower bond prices, also posed a
significant hurdle for the fund. Our 11% commitment to bonds--more than three
times the average utility fund's stake in bonds--lost -4.8% for the six-month
period, as falling prices more than offset dividend income. The fund's current
annualized yield was 3.0% on July 31, down slightly from 3.1% on January 31.

                                       3

<PAGE>   6

       As described in our reports to you over the past two years, the fund's
exposure to bonds has been gradually reduced. As of July 31, the bond
allocation was about 11% of assets, down from roughly 15% of assets a year
earlier. We expect the fund's bond allocation to range between 10% and 20% of
assets. To reflect this strategy, we are changing our benchmark Utilities
Composite Index by reducing the weighting to bonds from 20% to 15%.

       Similarly, we are adjusting the index's weighting in telephone stocks to
more closely reflect the fund's historical and expected exposure to this
sector, and to reflect merger activity that is reducing the number of U.S.
telephone companies in which the fund can invest. Until now, the index's
weighting in stocks has been split evenly between telephone companies and
electric and gas utilities. Going forward, the telephone stocks will account
for 25% of the index equity weighting, and the weighting of electric and gas
utilities will increase to 75%.

REIT INDEX FUND

Vanguard REIT Index Fund gained +4.4% for the six-month period, topping its
unmanaged benchmark, the Morgan Stanley REIT Index, by 0.3 percentage point but
trailing the average real estate fund by 0.7 percentage point. Prices for real
estate investment trusts (REITs) rebounded this spring. Analysts attributed the
rise in part to news that the investment company Berkshire Hathaway, managed by
the legendary Warren Buffett, had taken an interest in the sector. Reports said
Berkshire Hathaway had invested about $50 million--small change for that
firm--in a pair of REITs.

       In addition to the "Buffett effect," REITs were aided by positive
fundamentals during the six months. The U.S. economy, for example, continued to
expand at a brisk pace, with strong retail sales. This strength was evident in
high occupancy rates and favorable leasing trends in both the shopping center
and regional mall segments of the real estate market. Reports suggesting that
industry consolidation--predicated on cost-cutting possibilities--would remain
the rule, rather than the exception, also lent a hand to REIT prices.

IN SUMMARY

When you invest in a sector mutual fund, such as any of our five Specialized
Funds, you incur industry-specific risks--such as exposure to rapid swings in
the price of oil or gold--that are barely noticed in a diversified stock
portfolio. That being so, we encourage you, as always, to maintain a balanced
mix of stock funds, bond funds, and short-term reserves appropriate for your
risk tolerance, time horizon, and financial resources. Sector funds can then
allow you to tailor your holdings to reflect your expectations for discrete
market niches.

       We look forward to reporting to you on our full 2000 results six months
hence.

/s/ JOHN C. BOGLE                                        /s/ JOHN J. BRENNAN

John C. Bogle                                            John J. Brennan
Senior Chairman                                          Chairman and
                                                         Chief Executive Officer

August 17, 1999

                                       4


<PAGE>   7

<TABLE>
<CAPTION>
PORTFOLIO STATISTICS
- -----------------------------------------------------------------------------------------------------------------------
                                                                                                 SIX MONTHS
                                           NET ASSET VALUE PER SHARE          -----------------------------------------
                                        --------------------------------        INCOME       CAPITAL       SIX-MONTH
VANGUARD SPECIALIZED FUND                JAN. 31, 1999    JUL. 31, 1999        DIVIDENDS     GAINS*      TOTAL RETURN**
- -----------------------------------------------------------------------------------------------------------------------
<S>                                        <C>              <C>                 <C>          <C>             <C>
Energy                                      $17.16           $23.40              $0.01        $0.00          +36.4%
Gold and Precious Metals                      6.61             7.27               0.01         0.00          +10.2
Health Care                                  97.32            97.39               0.09         2.37          + 2.6
Utilities Income                             16.27            16.14               0.26         0.33          + 3.0
REIT Index                                   10.81            11.00               0.28         0.00          + 4.4
- -----------------------------------------------------------------------------------------------------------------------
</TABLE>

 *Includes both long-term and short-term capital gains distributions.

**Total return figures do not reflect the 1% fee assessed on redemptions of
  shares held less than one year in the Energy, Gold and Precious Metals, and
  REIT Index Funds, or the 1% fee assessed on redemptions of Health Care Fund
  shares held less than five years.

                                       5
<PAGE>   8

THE MARKETS IN PERSPECTIVE
SIX MONTHS ENDED JULY 31, 1999

[PHOTO]

An improving global economy was the backdrop for generally higher stock prices
but lower bond prices during the six months ended July 31.

       A powerful expansion of the U.S. economy--which is by far the world's
largest--attracted record levels of imported products, helping foreign
economies to begin recovering from recessions. Confidence grew that global
economic activity was likely to be solid, if unspectacular, throughout 1999,
with further gains expected in 2000. This was a marked change in sentiment from
autumn 1998, when many analysts feared that economic troubles in Asia, Latin
America, and Russia would eventually weaken even the robust U.S. economy. The
turnabout was due, in part, to actions by the Federal Reserve Board and other
central banks to ease monetary policy to foster growth and restore confidence
to financial markets.

       As economic engines revved up during 1999, market interest rates rose
steadily. The Fed tapped the brakes on June 30, when it acted to boost
short-term interest rates by 0.25 percentage point. The move clearly signaled
that the Fed was more concerned about the danger of inflation than any risk of
an economic slowdown.

U.S. STOCK MARKETS

Stock prices rose during the half-year, largely because investors' expectations
for improved corporate earnings outweighed their concerns about rising interest
rates. Companies reporting higher-than-expected earnings outnumbered those with
lower-than-expected earnings, and analysts raised estimates for overall
corporate profits in 1999 and 2000. The total market, as measured by the
Wilshire 5000 Index, rose 4.4% during the six months ended July 31, while the
S&P 500 Index, a yardstick for large-capitalization stocks, gained 4.5%.

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
                                                        TOTAL RETURNS
                                                 PERIODS ENDED JULY 31, 1999
                                             -----------------------------------
                                             6 MONTHS     1 YEAR        5 YEARS*
- --------------------------------------------------------------------------------
<S>                                         <C>          <C>            <C>
STOCKS

   S&P 500 Index                              4.5%         20.2%           26.2%
   Russell 2000 Index                         4.9           7.4            14.4
   Wilshire 5000 Index                        4.4          18.3            24.1
   MSCI EAFE Index                            7.5          10.0             8.9
- --------------------------------------------------------------------------------
BONDS

   Lehman Aggregate Bond Index               -2.5%          2.5%            7.3%
   Lehman 10 Year Municipal Bond Index       -2.6           2.8             6.6
   Salomon Smith Barney 3-Month
      U.S. Treasury Bill Index                2.3           4.7             5.2
- --------------------------------------------------------------------------------
OTHER

   Consumer Price Index                       1.5%          2.1%            2.4%
- --------------------------------------------------------------------------------
</TABLE>

*Annualized.

       Although stock returns seemed modest compared with the huge gains of
recent years, they were in line with historical norms and were impressive in
light of the rise in interest rates. Higher rates hurt stock prices because
many investors use current interest rates to discount the value of a stock's
projected earnings and dividends: the higher the rate used to discount them,
the lower the present value of future earnings and dividends.

       Within the stock market, leadership changed during the period. Value
stocks-- characterized by below-average share prices in relation to earnings,
dividends, and book

                                       6
<PAGE>   9

value--led the market's advance after having lagged growth stocks for most of
the past five years. Value stocks within the S&P 500 gained 8.3% for the six
months, while the index's growth stocks gained just 1.3%. Predominantly
value-stock industries such as energy, materials & processing, and machinery
were the big gainers during the half-year, buoyed by higher demand and prices
for oil and a number of other commodities. The worst-performing sectors were
health care (-7.6%) and consumer staples (-6.2%), both home to some
high-profile growth stocks that had infatuated investors until recently.

       Small-cap stocks, as measured by the Russell 2000 Index, gained 4.9% for
the half-year, marginally better than the return on large stocks. Even that
small victory is noteworthy, given that the Russell 2000's cumulative return
over the past three years (46.6%) lags that of the S&P 500 Index (118.1%) by
more than 70 percentage points.

U.S. BOND MARKETS

The rapid economic expansion that boosted prospects for stock prices made bond
investors wary. Although inflation was well-behaved--consumer prices rose 1.5%
for the six months and 2.1% for the twelve months ended July 31--both investors
and the Fed's policymakers were looking ahead, not behind. The concern is that
the economy is becoming overheated; inflation-adjusted gross domestic product
during the second quarter was up 5.4% from a year earlier. Too-rapid expansion
might yet trigger significant increases in wages and overall prices, many fear.
Indeed, thanks to high employment and rising wages, total U.S. wage and salary
income in June 1999 was 6.5% higher than in June 1998. Unless productivity--the
amount workers produce per hour--continues to rise at very rapid rates, such
wage growth could cause companies to boost prices for products and services.

       U.S. Treasury bond yields rose by roughly 1 percentage point--a hefty
boost for a six-month period. The yield of the 30-year Treasury bond rose 101
basis points, to 6.10% on July 31 from 5.09% on January 31. The yield of the
10-year Treasury--a benchmark especially for mortgage rates--rose 125 basis
points, to 5.90% from 4.65%. Money market rates didn't rise as far: Yields on
3-month T-bills increased on balance by 30 basis points, to 4.75% on July 31.
Bond prices, which move in the opposite direction from interest rates, fell.
The benchmark for the overall taxable bond market, the Lehman Aggregate Bond
Index, fell 2.5% on a total-return basis, as interest income of about 3.0% for
the six months was more than offset by a 5.5% average decline in bond prices.

INTERNATIONAL STOCK MARKETS

Stock prices in Japan and many emerging markets rebounded sharply from steep
losses in 1997 and 1998, as investors reckoned that these nations' economies
were finally on the mend. In Europe, stock prices were modestly higher in
local-currency terms but slightly negative for U.S. investors because of the
U.S. dollar's gains against European currencies. (Returns from abroad are
diminished when the dollar's value rises against other currencies, and
augmented when the dollar falls in value.)

       Overall, the developed markets outside the United States gained 7.5% in
U.S.-dollar terms, as measured by the Morgan Stanley Capital International
Europe, Australasia, Far East (EAFE) Index. The Pacific region was up 27.8% in
local-currency terms and 29.5% for U.S. investors, because the Japanese yen
gained against the dollar. Europe, which accounts for the lion's share of
EAFE's market capitalization, was up 3.7% in local currencies. But in U.S.
dollars, the return from European stocks was -0.8% because of weakness in
European currencies. The MSCI Select Emerging Markets Free Index shot up 30.9%,
led by gains of more than 60% in Indonesia, Singapore, and Turkey.

                                       7
<PAGE>   10

REPORT FROM WELLINGTON
MANAGEMENT COMPANY, LLP

[PHOTO]

ENERGY FUND

During the six months ended July 31, Vanguard Energy Fund provided a total
return of 36.4%, compared with gains of 4.5% for the S&P 500 Index and 35.7%
for the average natural-resources fund.

       As you probably recall, the energy sector performed poorly in 1998
largely because oil and natural gas prices fell. This was due to a combination
of factors--the Asian economic crisis, two consecutive mild winters, and a
rapid return to market of Iraqi oil production--that created surplus
inventories of oil and gas. In March 1999, the Organization of Petroleum
Exporting Countries (OPEC) finally instituted production cutbacks that, unlike
those implemented in 1998, were large enough to push oil prices up. At the same
time, the first signs of improving oil demand appeared in Asia, and oil
production outside of OPEC started to decline. Oil prices rose from about $12
per barrel late in January to about $20 in July.

       Natural gas prices in North America rose because supplies were getting
tighter, despite the mild winter of 1998-1999. U.S. gas production has started
to decline as a result of reduced drilling activity. Natural gas prices
increased from $2.00 to $2.70 per thousand cubic feet during the six months.

       Even though oil prices have returned to levels at which the industry can
earn satisfactory returns, oil-field exploration and production activity
remains subdued because many companies were much weakened after the 1998
collapse in prices. The industry is much more focused on reducing operating
costs and achieving efficiencies through mergers than it was during the
1995-1997 period, when volume growth was the main objective.

       The outlook for oil and gas prices is positive. OPEC is in a good
position to prevent oil prices from falling because it will have to supply the
bulk of any incremental increase in world oil demand. The North American gas
market will remain strong as long as drilling activity is insufficient to
maintain productive capacity, as is the case today. Therefore, the earnings
outlook for energy companies for the remainder of 1999 and 2000 is encouraging.

       During the first half of our fiscal year, all sectors except for
refining contributed to the fund's performance. Among the largest contributors
were Baker Hughes, Shell Transport & Trading, and Kerr-McGee. As in the overall
stock market, returns for the energy sector became more broad-based during the
first half of 1999, as the market stopped focusing so intently on only a narrow
list of large-capitalization stocks. We believe that Vanguard Energy Fund is
well positioned to participate in the continued recovery we foresee in the
sector.

Ernst H. von Metzsch, Senior Vice President and
Portfolio Manager

August 13, 1999

INVESTMENT PHILOSOPHY

Each fund reflects a belief that investors who seek to emphasize a given
economic sector as part of a long-term, balanced investment program are best
served by holding a portfolio of securities well-diversified across that
sector.

                                       8
<PAGE>   11

REPORT FROM M&G INVESTMENT
MANAGEMENT LTD.

GOLD AND PRECIOUS METALS FUND

Vanguard Gold and Precious Metals fund provided a total return of 10.2% during
the six months ended July 31, 1999. This compared with a -6.6% total return for
the average precious metals fund and a 12.3% advance for the fund's index
benchmark, the Salomon Smith Barney World Equity Gold Index.

       Against a difficult market background, it is encouraging that the fund
has outperformed its average competitor by such a wide margin. The impact of
lower gold prices during the period has been varied, and the strongest gains
during the half-year were from companies that were protected from currency
fluctuations by hedging programs or that had a diversified portfolio of mining
interests. Those companies focused solely on gold production made little
progress.

       Your fund got strong contributions from two South African platinum
producers--Impala Platinum and Anglo American Platinum--that together account
for more than 15% of the fund's assets. Their gains can largely be attributed
to two factors: first, a fear that Russia, a major platinum producer, would be
unable to meet future demand; and second, a pickup in demand for platinum from
Japan and elsewhere in Asia, where economic growth has resumed.

       Also contributing to the fund's solid performance were our holdings in
Rio Tinto, Mount Isa Mines, Freeport-McMoRan, and Newcrest Mining. Newcrest got
a boost from its new management's actions to address operational concerns at
its Australian gold operations. The fund also benefited from its stake in
Getchell Gold, whose share price rose sharply after a takeover offer from
Placer Dome. The smaller, more speculative end of the precious-metals equity
market was particularly hard hit by the difficult conditions facing the
industry. Your fund is strongly biased toward larger companies--the "blue
chips" of the precious metals business. However, the few smaller companies we
owned, including Crown Resources and Greenstone Resources, were not spared a
drubbing. Our stake in Australian Resources, which went into liquidation,
illustrated the precarious position of many small producers due to the present
low price of gold. We intend to sell these smaller stocks when market
conditions are more suitable.

       The fund's purchases were concentrated in large companies whose
diversified interests will, we believe, protect them somewhat from the falling
price of gold bullion. We established new holdings in WMC and Lonmin during the
second quarter, and we added to existing positions in three strong Australian
companies: Rio Tinto, Mount Isa Mines, and Lihir Gold. Among our sales were a
few speculative stocks and shares of highly leveraged enterprises such as the
exploration company Golden Star Resources.

       Looking ahead, the price of gold is unlikely to rise while central banks
continue to sell significant portions of their gold reserves. In the short
term, closings of gold mines are likely to accelerate. However, mine closings
could result in a shrinkage of supply that, together with a pickup in demand
from Asia, could help to stabilize the price of this beleaguered metal.
Meanwhile, the strongest performance is likely to come from larger companies
that possess diversified interests capable of offsetting losses from gold
mining. The fund is heavily weighted toward such stocks.

Graham E. French, Portfolio Manager                             August 13, 1999

                                       9
<PAGE>   12

REPORT FROM WELLINGTON
MANAGEMENT COMPANY, LLP

HEALTH CARE FUND

Vanguard Health Care Fund gained 2.6% for the six months ended July 31, 1999.
This result trailed the 4.5% return for the S&P 500 Index, but bettered the
- -1.3% decline of the average Lipper health-care mutual fund.

       After three amazingly strong years, large-capitalization health-care
stocks took a breather during the first half of our fiscal year. In
anticipation of such a development, we had been reducing the fund's average
market capitalization by increasing the number of stocks held and by focusing
new purchases in the mid-cap area, which seemed to offer better value. This
move explains, in part, why we outperformed our peers during this period.
Another significant plus for us was our position of nearly 9% of assets in
Japanese stocks, which performed well during the half-year.

       The fund's best-performing categories were biotechnology companies and
Japanese holdings. Immunex, Gilead Sciences, IDEC Pharmaceuticals, and Human
Genome Sciences were the biotech stocks that contributed most to our
performance. Takeda Chemical, Fujisawa Pharmaceutical, and Yamanouchi
Pharmaceuticals were our best-performing Japanese investments.

       We believe the fund's modest returns of the past six months are more
representative of what can be expected in the future than the stellar returns
achieved during the past three-, five-, and ten-year periods. Prices of
health-care stocks already reflect lofty expectations for the industry's future
growth. The health-care sector is exciting, and its products are vital for all
of us. As investors, we need to remain focused on the long term, for, indeed,
the long-term future of this sector is bright.

       Your fund is diversified across all health-care sectors and has a
healthy dose of international exposure. We focus on finding good value and
believe the Health Care Fund offers lower volatility than many of its peers,
while participating in the long-term upside of the health-care industry.

Edward P. Owens, Senior Vice President and Portfolio Manager

August 16, 1999

                                       10
<PAGE>   13

REPORT FROM WELLINGTON
MANAGEMENT COMPANY, LLP

UTILITIES INCOME FUND

Vanguard Utilities Income Fund earned 3.0% during the six months ended July 31,
a result that was behind both the 4.0% return for the fund's composite index
and the 6.8% return for the average utility fund.

       The best-performing group in the utilities sector was natural gas
stocks, which gained 24.8% during the half-year. Natural gas companies
benefited from a sharp rise in prices for both oil and natural gas, as well as
from ongoing takeover activity and speculation. Stocks of telephone utilities
returned 8.5% during the six months, aided by takeovers of Frontier and
Ameritech and by investors' strong appetite for companies that are benefiting
from accelerating growth in data communications and wireless services (such as
Sprint PCS).

       Bond prices suffered as interest rates rose throughout the semiannual
period. The total return for the fund's bond holdings was -4.8% for the
half-year, before expenses. Rising interest rates also hurt electric utility
stocks, which are defensive in nature and often perform in sympathy with the
fixed-income markets. The electric utility stocks in the S&P 500 Index declined
- -3.1% during the period.

       The telephone sector continues to have by far the best growth story
among utility stocks that we monitor. As mentioned, telephone companies are
benefiting from the fast spread of new applications for data communications and
wireless services. We plan to maintain large positions within the group,
although we are somewhat constrained by our mandate to invest only in common
stocks that pay dividends. Our favorite telecommunications positions now are
Sprint, Bell Atlantic, and Ameritech. We are also investing in telecom through
an electric utility (Montana Power) and a natural gas pipeline company
(Williams Companies). Both of these companies have used their rights of way to
build fiber-optic networks to add value for shareholders.

       The electric utilities are trading at historically low valuations in
relation to the overall market. Continued earnings disappointments and poor
returns from both overseas investments and domestic acquisitions by electric
companies have dulled investor interest in the sector. However, we believe
there are some good values within the group, including some of our larger
holdings, such as Pinnacle West Capital, Unicom, and DQE. We believe managers
of many utilities do not sufficiently understand the increased risk they face
in a deregulated market for energy. This is why constant reassessment of
company strategies and careful stock selection are imperative.

Mark J. Beckwith, Vice President and Portfolio Manager

August 16, 1999

                                       11
<PAGE>   14

FUND PROFILE
ENERGY FUND

This Profile provides a snapshot of the fund's characteristics as of July 31,
1999, compared where appropriate to an unmanaged index. Key elements of this
Profile are defined on pages 13 and 14.

<TABLE>
<CAPTION>
PORTFOLIO CHARACTERISTICS
- ----------------------------------------------------------
                                    ENERGY         S&P 500
- ----------------------------------------------------------
<S>                                <C>            <C>
Number of Stocks                        53             500
Median Market Cap                    $9.6B          $64.5B
Price/Earnings Ratio                 39.3x           28.1x
Price/Book Ratio                      2.7x            5.1x
Yield                                 1.3%            1.3%
Return on Equity                     10.9%           22.4%
Earnings Growth Rate                  5.3%           15.0%
Foreign Holdings                     25.2%            1.6%
Turnover Rate                          8%*              --
Expense Ratio                       0.48%*              --
Cash Reserves                         3.9%              --
</TABLE>

*Annualized.

<TABLE>
<CAPTION>
EQUITY INVESTMENT FOCUS
- --------------------------------------
<S>                          <C>
STYLE                         VALUE
MARKET CAP                    MEDIUM
</TABLE>

<TABLE>
<CAPTION>
VOLATILITY MEASURES
- ----------------------------------------------------------
                                    ENERGY         S&P 500
- ----------------------------------------------------------
<S>                                  <C>             <C>
R-Squared                             0.31            1.00
Beta                                  0.82            1.00
</TABLE>

<TABLE>
<CAPTION>
TEN LARGEST HOLDINGS (% OF TOTAL NET ASSETS)
- -------------------------------------------------------
<S>                                               <C>
Shell Transport & Trading Co. ADR                  4.7%
Baker Hughes, Inc.                                 4.3
Unocal Corp.                                       4.3
USX-Marathon Group                                 4.1
Halliburton Co.                                    3.8
Mobil Corp.                                        3.7
Texaco Inc.                                        3.5
Exxon Corp.                                        3.3
Chevron Corp.                                      3.3
Schlumberger Ltd.                                  3.1
- -------------------------------------------------------
Top Ten                                           38.1%
</TABLE>

<TABLE>
<CAPTION>
SECTOR DIVERSIFICATION (% OF COMMON STOCKS)
- ----------------------------------------------------------------------------------
                                               JULY 31, 1998       JULY 31, 1999
                                             -------------------------------------
                                                  ENERGY              ENERGY
                                             -------------------------------------
<S>                                              <C>                 <C>
Auto & Transportation                              0.4%                0.0%
Energy Miscellaneous                               3.9                 2.2
International                                     31.6                25.2
Machinery--Oil Well Equipment & Services           9.7                17.9
Materials & Processing                             2.1                 0.8
Offshore Drilling                                  1.4                 1.0
Oil--Crude Producers                              16.2                10.9
Oil--Integrated Domestic                          22.8                29.2
Oil--Integrated International                      9.5                11.0
Other                                              2.4                 1.8
- ----------------------------------------------------------------------------------
</TABLE>

                                       12
<PAGE>   15

AVERAGE COUPON. The average interest rate paid on the securities held by a
fund. It is expressed as a percentage of face value.

AVERAGE DURATION. An estimate of how much a bond fund's share price will
fluctuate in response to a change in interest rates. To see how the price could
shift, multiply the fund's duration by the change in rates. If interest rates
rise by one percentage point, the share price of a fund with an average
duration of five years would decline by about 5%. If rates decrease by a
percentage point, the fund's share price would rise by 5%.

AVERAGE MATURITY. The average length of time until bonds held by a fund reach
maturity (or are called) and are repaid. In general, the longer the average
maturity, the more a fund's share price will fluctuate in response to changes
in market interest rates.

AVERAGE QUALITY. An indicator of credit risk, this figure is the average of the
ratings assigned to a fund's securities holdings by credit-rating agencies. The
agencies make their judgment after appraising an issuer's ability to meet its
obligations. Quality is graded on a scale, with Aaa or AAA indicating the most
creditworthy bond issuers and A-1 or MIG-1 indicating the most creditworthy
issuers of money market securities.

BETA. A measure of the magnitude of a fund's past share-price fluctuations in
relation to the ups and downs of the overall market (or appropriate market
index). The market (or index) is assigned a beta of 1.00, so a fund with a beta
of 1.20 would have seen its share price rise or fall by 12% when the overall
market rose or fell by 10%.

CASH RESERVES. The percentage of a fund's net assets invested in "cash
equivalents"--highly liquid, short-term, interest-bearing securities. This
figure does not include cash invested in futures contracts to simulate stock
and bond investment.

COUNTRY DIVERSIFICATION. The percentages of a fund's total net assets invested
in securities of various countries.

DISTRIBUTION BY CREDIT QUALITY. This breakdown of a fund's securities by credit
rating can help in gauging the risk that returns could be affected by defaults
or other credit problems.

DISTRIBUTION BY ISSUER. A breakdown of a fund's holdings by type of issuer or
type of instrument.

DIVIDEND YIELD. The current, annualized rate of dividends paid on a share of
stock, divided by its current share price. For a fund, the weighted average
yield for stocks it holds.

EARNINGS GROWTH RATE. The average annual rate of growth in earnings over the
past five years for the stocks now in a fund.

EQUITY INVESTMENT FOCUS. This grid indicates the focus of a fund's equity
holdings in terms of two attributes: market capitalization (large, medium, or
small) and relative valuation (growth, value, or a blend).

EXPENSE RATIO. The percentage of a fund's average net assets used to pay its
annual administrative and advisory expenses. These expenses directly reduce
returns to investors.

FIXED-INCOME INVESTMENT FOCUS. This grid indicates the focus of a fund's
fixed-income holdings in terms of two attributes: average maturity (short,
medium, or long) and average credit quality (Treasury/agency, investment-grade
corporate, or below investment-grade).

FOREIGN HOLDINGS. The percentage of a fund's equity assets represented by
stocks or American Depositary Receipts of companies based outside the United
States.

FUND ALLOCATION BY REIT TYPE. An indicator of diversification, this table shows
the percentage of the fund's noncash holdings invested in various real estate
investment trusts, classified according to the types of property they
emphasize.

                                       13
<PAGE>   16

FUND ASSET ALLOCATION. This chart shows the proportions of a fund's holdings
allocated to different types of assets.

MEDIAN MARKET CAP. An indicator of the size of companies in which a fund
invests; the midpoint of market capitalization (market price x shares
outstanding) of a fund's stocks, weighted by the proportion of the fund's
assets invested in each stock. Stocks representing half of the fund's assets
have market capitalizations above the median, and the rest are below it.

NUMBER OF BONDS. An indicator of diversification. The more separate issues a
fund holds, the less susceptible it is to a price decline stemming from the
problems of a particular bond issuer.

NUMBER OF STOCKS. An indicator of diversification. The more stocks a fund
holds, the more diversified it is and the more likely to perform in line with
the overall stock market.

PRICE/BOOK RATIO. The share price of a stock divided by its net worth, or book
value, per share. For a fund, the weighted average price/book ratio of the
stocks it holds.

PRICE/EARNINGS RATIO. The ratio of a stock's current price to its per-share
earnings over the past year. For a fund, the weighted average P/E of the stocks
it holds. P/E is an indicator of market expectations about corporate prospects;
the higher the P/E, the greater the expectations for a company's future growth.

R-SQUARED. A measure of how much of a fund's past returns can be explained by
the returns from the overall market (or its benchmark index). If a fund's total
return were precisely synchronized with the overall market's return, its
R-squared would be 1.00. If a fund's returns bore no relationship to the
market's returns, its R-squared would be 0.

RETURN ON EQUITY. The annual average rate of return generated by a company
during the past five years for each dollar of shareholder's equity (net income
divided by shareholder's equity). For a fund, the weighted average return on
equity for the companies whose stocks it holds.

SECTOR DIVERSIFICATION. The percentages of a fund's common stocks that come
from each of the major industry groups that compose the stock market.

TEN LARGEST HOLDINGS/STOCKS. The percentage of equity assets or of total net
assets that a fund has invested in its ten largest stocks. As this percentage
rises, a fund's returns are likely to be more volatile because they are more
dependent on the fortunes of a few companies.

TURNOVER RATE. An indication of trading activity during the period. Funds with
high turnover rates incur higher transaction costs and are more likely to
distribute capital gains (which are taxable to investors).

YIELD. A snapshot of a fund's income from interest and dividends. The yield,
expressed as a percentage of the fund's net asset value, is based on income
earned over the past 30 days and is annualized, or projected forward for the
coming year. The index yield is based on the current annualized rate of
dividends paid on stocks in the index.

YIELD TO MATURITY. The rate of return an investor would receive if the
securities held by a fund were held to their maturity dates.

                                       14
<PAGE>   17

FUND PROFILE
GOLD AND PRECIOUS METALS FUND

This Profile provides a snapshot of the fund's characteristics as of July 31,
1999, compared where appropriate to an unmanaged index. Key elements of this
Profile are defined on pages 13 and 14.

<TABLE>
<CAPTION>
PORTFOLIO CHARACTERISTICS
- ----------------------------------------------------------
                                  GOLD AND
                           PRECIOUS METALS         S&P 500
- ----------------------------------------------------------
<S>                                 <C>            <C>
Number of Stocks                        38             500
Median Market Cap                    $3.1B          $64.5B
Price/Earnings Ratio                 21.4x           28.1x
Price/Book Ratio                      3.6x            5.1x
Return on Equity                      6.3%           22.4%
Earnings Growth Rate                 11.9%           15.0%
Foreign Holdings                     78.3%            1.6%
Turnover Rate                         26%*              --
Expense Ratio                       0.78%*              --
</TABLE>

*Annualized.

<TABLE>
<CAPTION>
TEN LARGEST HOLDINGS (% OF TOTAL NET ASSETS)
- -------------------------------------------------------
<S>                                               <C>
Newcrest Mining Ltd.                               8.3%
Impala Platinum Holdings Ltd. ADR                  8.2
Mount Isa Mines Holdings Ltd.                      7.8
Anglo American Platinum Corp ADR                   6.9
Newmont Mining Corp.                               5.2
Stillwater Mining Co.                              5.2
Euro-Nevada Mining Corp.                           4.6
Freeport-McMoRan Copper & Gold, Inc.
  Class A                                          4.2
Rio Tinto PLC                                      3.8
Delta Gold NL                                      3.4
- -------------------------------------------------------
Top Ten                                           57.6%
</TABLE>

<TABLE>
<CAPTION>
VOLATILITY MEASURES
- ----------------------------------------------------------
                                  GOLD AND
                           PRECIOUS METALS         S&P 500
- ----------------------------------------------------------
<S>                                  <C>             <C>
R-Squared                             0.16            1.00
Beta                                  0.87            1.00
</TABLE>

<TABLE>
<CAPTION>
COUNTRY DIVERSIFICATION (% OF TOTAL NET ASSETS)
- -----------------------------------------------
<S>                     <C>
Australia                35.8%
Canada                   14.2
South Africa             18.3
United Kingdom            3.1
United States            19.8
- -----------------------------------------------
Subtotal                 91.2%
Bullion                   6.1
Cash Reserves             2.7
- -----------------------------------------------
Total                   100.0%
</TABLE>

                                       15
<PAGE>   18

FUND PROFILE
HEALTH CARE FUND

This Profile provides a snapshot of the fund's characteristics as of July 31,
1999, compared where appropriate to an unmanaged index. Key elements of this
Profile are defined on pages 13 and 14.

<TABLE>
<CAPTION>
PORTFOLIO CHARACTERISTICS
- ----------------------------------------------------------
                               HEALTH CARE         S&P 500
- ----------------------------------------------------------
<S>                                <C>             <C>
Number of Stocks                       138             500
Median Market Cap                   $11.6B          $64.5B
Price/Earnings Ratio                 31.2x           28.1x
Price/Book Ratio                      4.2x            5.1x
Yield                                 0.8%            1.3%
Return on Equity                     17.5%           22.4%
Earnings Growth Rate                  3.6%           15.0%
Foreign Holdings                     23.4%            1.6%
Turnover Rate                         18%*              --
Expense Ratio                       0.43%*              --
Cash Reserves                         9.9%              --
</TABLE>

*Annualized.

<TABLE>
<CAPTION>
EQUITY INVESTMENT FOCUS
- ----------------------------------------------------------
<S>                     <C>
STYLE                    GROWTH
MARKET CAP               LARGE
</TABLE>

<TABLE>
<CAPTION>
VOLATILITY MEASURES
- ----------------------------------------------------------
                               HEALTH CARE         S&P 500
- ----------------------------------------------------------
<S>                                  <C>             <C>
R-Squared                             0.76            1.00
Beta                                  0.71            1.00
</TABLE>

<TABLE>
<CAPTION>
TEN LARGEST HOLDINGS (% OF TOTAL NET ASSETS)
- -------------------------------------------------------
<S>                                               <C>
Warner-Lambert Co.                                 4.3%
Pharmacia & Upjohn, Inc.                           4.2
Immunex Corp.                                      3.8
AstraZeneca Group PLC                              3.7
Johnson & Johnson                                  3.0
Bristol-Myers Squibb Co.                           3.0
Allergan, Inc.                                     2.9
Abbott Laboratories                                2.8
McKesson HBOC, Inc.                                2.6
United Healthcare Corp.                            2.4
- -------------------------------------------------------
Top Ten                                           32.7%
</TABLE>

<TABLE>
<CAPTION>
SECTOR DIVERSIFICATION (% OF COMMON STOCKS)
- ------------------------------------------------------------------------------------
                                                 JULY 31, 1998        JULY 31, 1999
                                                ------------------------------------
                                                  HEALTH CARE          HEALTH CARE
                                                ------------------------------------
<S>                                                 <C>                  <C>
Biotech Research & Production                         2.3%                 1.5%
Consumer Discretionary                                0.1                  0.6
Consumer Staples                                      0.0                  0.2
Drugs & Pharmaceuticals                              50.3                 42.6
Electronics--Medical Systems                          1.2                  1.2
Health & Personal Care                                0.6                  3.4
Health Care Facilities                                3.2                  5.0
Health Care Management Services                       5.3                  7.6
International                                        19.3                 23.4
Materials & Processing                                5.9                  2.2
Medical & Dental Instruments & Supplies               8.9                  7.7
Medical Services                                      1.2                  0.9
Miscellaneous Health Care                             0.6                  0.5
Producer Durables                                     1.0                  0.3
Technology                                            0.0                  0.1
Other                                                 0.1                  2.8
- --------------------------------------------------------------------------------
</TABLE>

                                       16
<PAGE>   19

FUND PROFILE
UTILITIES INCOME FUND

This Profile provides a snapshot of the fund's characteristics as of July 31,
1999, compared where appropriate to an unmanaged index. Key elements of this
Profile are defined on pages 13 and 14.

<TABLE>
<CAPTION>
TOTAL FUND CHARACTERISTICS
- -----------------------------------------------------------
<S>                                                  <C>
Yield                                                  3.0%
Turnover Rate                                          44%*
Expense Ratio                                        0.43%*
Cash Reserves                                          1.3%
</TABLE>

*Annualized.

<TABLE>
<CAPTION>
FUND ASSET ALLOCATION
- ------------------------------
<S>                     <C>
STOCKS                  88%
BONDS                   11%
CASH RESERVES            1%
</TABLE>

<TABLE>
<CAPTION>
TOTAL FUND VOLATILITY MEASURES
- ----------------------------------------------------------
                                 UTILITIES
                                    INCOME         S&P 500
- ----------------------------------------------------------
<S>                                  <C>             <C>
R-Squared                             0.32            1.00
Beta                                  0.34            1.00
</TABLE>

<TABLE>
<CAPTION>
TEN LARGEST STOCKS (% OF EQUITIES)
- -------------------------------------------------------
<S>                                               <C>
Sprint                                             5.9%
Bell Atlantic Corp.                                5.1
Ameritech Corp.                                    4.6
Enron Corp.                                        3.9
Pinnacle West Capital Corp.                        3.9
Montana Power Co.                                  3.8
DQE Inc.                                           3.8
BellSouth Corp.                                    3.6
British Telecommunications PLC ADR                 3.0
Unicom Corp.                                       2.9
- -------------------------------------------------------
Top Ten                                           40.5%
- -------------------------------------------------------
Top Ten as % of Total Net Assets                  35.8%
</TABLE>

<TABLE>
<CAPTION>
SECTOR DIVERSIFICATION (% OF COMMON STOCKS)
- -----------------------------------------------------------------------------------------
                                                  JULY 31, 1998          JULY 31, 1999
                                                -----------------------------------------
                                                 UTILITIES INCOME       UTILITIES INCOME
- -----------------------------------------------------------------------------------------
<S>                                                 <C>                    <C>
Electrical                                            43.3%                  44.2%
Gas Distribution                                      11.4                    4.7
Integrated Oils                                        3.6                    4.7
Other Energy                                           2.9                    6.8
Telecommunications                                    31.7                   35.4
Water                                                  0.7                    2.2
Other                                                  6.4                    2.0
- -----------------------------------------------------------------------------------------
</TABLE>

                                       17
<PAGE>   20

<TABLE>
<CAPTION>
EQUITY CHARACTERISTICS
- ----------------------------------------------------------
                                 UTILITIES
                                    INCOME         S&P 500
- ----------------------------------------------------------
<S>                                 <C>            <C>
Number of Stocks                        59             500
Median Market Cap                    $8.8B          $64.5B
Price/Earnings Ratio                 22.2x           28.1x
Price/Book Ratio                      2.6x            5.1x
Dividend Yield                        2.9%            1.3%
Return on Equity                     15.8%           22.4%
Earnings Growth Rate                  7.6%           15.0%
Foreign Holdings                     11.8%            1.6%
</TABLE>

<TABLE>
<CAPTION>
EQUITY INVESTMENT FOCUS
- ----------------------------------------------------------
<S>                      <C>
STYLE                    VALUE
MARKET CAP               MEDIUM
</TABLE>

<TABLE>
<CAPTION>
FIXED-INCOME CHARACTERISTICS
- -----------------------------------------------------------
                                 UTILITIES          LEHMAN
                                    INCOME          INDEX*
- -----------------------------------------------------------
<S>                              <C>            <C>
Number of Bonds                         45           5,381
Yield to Maturity                      7.0%            6.8%
Average Coupon                         6.8%            6.8%
Average Maturity                 9.6 years       9.0 years
Average Quality                         A1             Aaa
Average Duration                 6.0 years       5.0 years
</TABLE>

*Lehman Aggregate Bond Index.

<TABLE>
<CAPTION>
FIXED-INCOME INVESTMENT FOCUS
- ---------------------------------------------------------
<S>                           <C>
AVERAGE MATURITY              LONG
CREDIT QUALITY                INVESTMENT-GRADE CORPORATE
</TABLE>

<TABLE>
<CAPTION>
DISTRIBUTION BY ISSUER (% OF BONDS)
- -------------------------------------------------------
<S>                                              <C>
Electric                                          65.7%
Foreign                                            1.7
Gas                                                2.3
Telephone                                         30.3
Treasury/Agency                                    0.0
- -------------------------------------------------------
Total                                            100.0%
</TABLE>

<TABLE>
<CAPTION>
DISTRIBUTION BY CREDIT QUALITY (% OF BONDS)
- ----------------------------------------------------
<S>                                           <C>
Treasury/Agency                                 0.0%
Aaa                                             0.0
Aa                                             41.8
A                                              43.6
Baa                                            14.6
Ba                                              0.0
B                                               0.0
Not Rated                                       0.0
- ----------------------------------------------------
Total                                         100.0%
</TABLE>

                                       18
<PAGE>   21

FUND PROFILE
REIT INDEX FUND

This Profile provides a snapshot of the fund's characteristics as of July 31,
1999, compared where appropriate to an unmanaged index. Key elements of this
Profile are defined on pages 13 and 14.

<TABLE>
<CAPTION>
PORTFOLIO CHARACTERISTICS
- ----------------------------------------------------------
                                REIT INDEX         S&P 500
- ----------------------------------------------------------
<S>                             <C>                <C>
Number of Stocks                       136             500
Median Market Cap                    $1.6B          $64.5B
Price/Earnings Ratio                 17.5x           28.1x
Price/Book Ratio                      1.3x            5.1x
Dividend Yield                       7.6%*            1.3%
Return on Equity                     13.2%           22.4%
Earnings Growth Rate                 20.1%           15.0%
Foreign Holdings                      0.0%            1.6%
Turnover Rate                        11%**              --
Expense Ratio                      0.32%**              --
Cash Reserves                         1.8%              --
</TABLE>

 *This dividend yield includes some payments that represent a return of capital
  by the underlying REITs. The amount of such return of capital is only
  determined by each REIT after its fiscal year ends.

**Annualized.

<TABLE>
<CAPTION>
EQUITY INVESTMENT FOCUS
- ----------------------------------------------------------
<S>                     <C>
STYLE                   VALUE
MARKET CAP              SMALL
</TABLE>

<TABLE>
<CAPTION>
VOLATILITY MEASURES
- ----------------------------------------------------------
                                REIT INDEX         S&P 500
- ----------------------------------------------------------
<S>                             <C>                <C>
R-Squared                             0.17            1.00
Beta                                  0.36            1.00
</TABLE>

<TABLE>
<CAPTION>
TEN LARGEST HOLDINGS (% OF TOTAL NET ASSETS)
- -------------------------------------------------------
<S>                                               <C>
Equity Office Properties Trust REIT                5.3%
Equity Residential Properties Trust REIT           4.1
Simon Property Group, Inc. REIT                    3.7
Public Storage, Inc. REIT                          2.9
ProLogis Trust REIT                                2.6
Vornado Realty Trust REIT                          2.5
Archstone Communities Trust REIT                   2.5
Crescent Real Estate, Inc. REIT                    2.3
Apartment Investment & Management
  Co. Class A REIT                                 2.1
Duke Realty Investments, Inc. REIT                 2.1
- -------------------------------------------------------
Top Ten                                           30.1%
</TABLE>

<TABLE>
<CAPTION>
FUND ALLOCATION BY REIT TYPE
- ---------------------------------------------------------
<S>                                                 <C>
Retail                                                22%
Apartments                                            22
Office                                                20
Industrial                                            16
Diversified                                           13
Hotels                                                 7
- ---------------------------------------------------------
Total                                                100%
</TABLE>

                                       19
<PAGE>   22

PERFORMANCE SUMMARIES

All of the data on this page represent past performance, which cannot be used
to predict future returns that may be achieved by the funds. Note, too, that
both share price and return can fluctuate widely. An investor's shares, when
redeemed, could be worth more or less than their original cost.

<TABLE>
<CAPTION>
ENERGY FUND
TOTAL INVESTMENT RETURNS: MAY 23, 1984-JULY 31, 1999
- --------------------------------------------------------
                     ENERGY FUND                 S&P 500
FISCAL      CAPITAL    INCOME       TOTAL        TOTAL
YEAR        RETURN     RETURN       RETURN       RETURN
- --------------------------------------------------------
<S>         <C>        <C>          <C>          <C>
1985        -1.9%       0.0%        -1.9%        21.1%
1986         2.0        1.4          3.4         22.9
1987        25.8        6.1         31.9         33.9
1988        -5.7        6.5          0.8         -3.3
1989        20.3        3.9         24.2         20.1
1990        26.1        2.9         29.0         14.5
1991        -4.7        3.1         -1.6          8.4
1992        -1.9        3.2          1.3         22.7
1993        10.0        3.0         13.0         10.6
1994        25.0        2.3         27.3         12.9
1995       -10.6        1.5         -9.1          0.5
1996        26.6        2.1         28.7         38.7
1997        38.8        1.5         40.3         26.3
1998         2.4        1.4          3.8         26.9
1999       -22.6        1.4        -21.2         32.5
2000*       36.4        0.0         36.4          4.5
- --------------------------------------------------------
</TABLE>

*Six months ended July 31, 1999.

See Financial Highlights table on page 38 for dividend and capital gains
information for the past five years.

<TABLE>
<CAPTION>
GOLD AND PRECIOUS METALS FUND
TOTAL INVESTMENT RETURNS: MAY 23, 1984-JULY 31, 1999
- --------------------------------------------------------
           GOLD AND PRECIOUS METALS FUND        SALOMON*
FISCAL     CAPITAL     INCOME      TOTAL         TOTAL
YEAR       RETURN      RETURN      RETURN        RETURN
- --------------------------------------------------------
<S>        <C>         <C>         <C>           <C>
1985       -34.0%       0.0%       -34.0%        -34.4%
1986        15.2        1.1         16.3           3.6
1987        38.2        4.0         42.2          12.4
1988        -1.6        4.1          2.5           4.5
1989         3.2        2.9          6.1          -9.3
1990        29.4        4.0         33.4          72.3
1991       -33.6        2.4        -31.2         -41.1
1992        13.5        3.2         16.7          10.9
1993       -22.5        1.9        -20.6         -23.3
1994        86.3        2.9         89.2         121.5
1995       -21.1        1.9        -19.2         -21.1
1996        31.4        1.8         33.2          34.7
1997       -21.9        1.4        -20.5         -14.9
1998       -31.2        1.4        -29.8         -31.2
1999       -12.2        1.1        -11.1         -19.4
2000**      10.0        0.2         10.2          12.3
- --------------------------------------------------------
</TABLE>

 *MSCI Gold Mines Index through December 31, 1994; Salomon Smith Barney World
  Gold Index thereafter.

**Six months ended July 31, 1999.

See Financial Highlights table on page 39 for dividend and capital gains
information for the past five years.

<TABLE>
<CAPTION>
AVERAGE ANNUAL TOTAL RETURNS: PERIODS ENDED JUNE 30, 1999*
- --------------------------------------------------------------------------------------------------------------------------
                                                                                                      10 YEARS
                                                 INCEPTION                               ---------------------------------
                                                   DATE        1 YEAR       5 YEARS       CAPITAL      INCOME       TOTAL
- --------------------------------------------------------------------------------------------------------------------------
<S>                                              <C>           <C>          <C>           <C>          <C>          <C>
Energy Fund**                                    5/23/1984      0.26%       12.42%         9.21%       2.28%        11.49%
Gold and Precious Metals Fund**                  5/23/1984     12.75        -8.70         -2.55        2.12         -0.43
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>

 *SEC rules require that we provide this average annual total return
  information through the latest calendar quarter.

**Total return figures do not reflect the 1% fee assessed on redemptions of
  shares held for less than one year.

                                       20

<PAGE>   23

All of the data on this page represent past performance, which cannot be used
to predict future returns that may be achieved by the funds. Note, too, that
both share price and return can fluctuate widely. An investor's shares, when
redeemed, could be worth more or less than their original cost.

<TABLE>
<CAPTION>
HEALTH CARE FUND
TOTAL INVESTMENT RETURNS: MAY 23, 1984-JULY 31, 1999
- --------------------------------------------------------
                   HEALTH CARE FUND              S&P 500
FISCAL      CAPITAL     INCOME      TOTAL        TOTAL
YEAR        RETURN      RETURN      RETURN       RETURN
- --------------------------------------------------------
<S>         <C>         <C>         <C>          <C>
1985        18.5%       0.0%        18.5%        21.1%
1986        32.9        0.8         33.7         22.9
1987        30.8        1.0         31.8         33.9
1988        -2.7        3.0          0.3         -3.3
1989        19.3        2.1         21.4         20.1
1990        17.7        2.5         20.2         14.5
1991        27.4        2.7         30.1          8.4
1992        32.0        2.0         34.0         22.7
1993        -4.8        1.9         -2.9         10.6
1994        18.7        2.5         21.2         12.9
1995         8.1        1.7          9.8          0.5
1996        43.8        1.7         45.5         38.7
1997        19.1        1.5         20.6         26.3
1998        26.0        1.4         27.4         26.9
1999        36.2        1.2         37.4         32.5
2000*        2.5        0.1          2.6          4.5
- --------------------------------------------------------
</TABLE>

*Six months ended July 31, 1999.

See Financial Highlights table on page 39 for dividend and capital gains
information for the past five years.

<TABLE>
<CAPTION>
UTILITIES INCOME FUND
TOTAL INVESTMENT RETURNS: MAY 15, 1992-JULY 31, 1999
- ---------------------------------------------------------
            UTILITIES INCOME FUND              UTILITIES
                                               COMPOSITE*
FISCAL      CAPITAL    INCOME       TOTAL        TOTAL
YEAR        RETURN     RETURN       RETURN       RETURN
- ---------------------------------------------------------
<S>         <C>         <C>         <C>          <C>
1993        12.0%       2.5%        14.5%        12.2%
1994         8.0        5.1         13.1         12.9
1995        -9.7        5.2         -4.5         -2.0
1996        23.2        6.3         29.5         30.2
1997         0.9        4.6          5.5          4.5
1998        17.8        5.4         23.2         26.4
1999        15.6        4.3         19.9         23.8
2000**       1.3        1.7          3.0          4.0
- ---------------------------------------------------------
</TABLE>

 *80% S&P Utilities Index, 20% Lehman Utility Bond Index through June 30, 1996;
  40% S&P Utilities Index, 40% S&P Telephone Index, 20% Lehman Utility Bond
  Index through April 30, 1999; 63.75% S&P Utilities Index, 21.25% S&P
  Telephone Index, 15% Lehman Utility Bond Index thereafter.

**Six months ended July 31, 1999.

See Financial Highlights table on page 40 for dividend and capital gains
information for the past five years.

<TABLE>
<CAPTION>
AVERAGE ANNUAL TOTAL RETURNS: PERIODS ENDED JUNE 30, 1999*
- --------------------------------------------------------------------------------------------------------------------------
                                                                                                      10 YEARS
                                                 INCEPTION                               ---------------------------------
                                                   DATE        1 YEAR       5 YEARS       CAPITAL      INCOME       TOTAL
- --------------------------------------------------------------------------------------------------------------------------
<S>                                              <C>           <C>          <C>           <C>          <C>          <C>
Health Care Fund                                 5/23/1984     22.26%       31.12%        21.30%       1.90%        23.20%
  Fee-Adjusted Returns**                                       21.04        31.12         21.30        1.90         23.20
Utilities Income Fund                            5/15/1992     16.53        17.18          9.34+       4.96+        14.30+
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>

 *SEC rules require that we provide this average annual total return
  information through the latest calendar quarter.

**Reflective of the 1% fee assessed on redemptions of shares held less than
  five years. For shares purchased before April 19, 1999, the 1% fee is
  assessed only on redemptions of shares held less than one year.

 +Since inception.

                                       21
<PAGE>   24

PERFORMANCE SUMMARIES (continued)

All of the data on this page represent past performance, which cannot be used
to predict future returns that may be achieved by the funds. Note, too, that
both share price and return can fluctuate widely. An investor's shares, when
redeemed, could be worth more or less than their original cost.

<TABLE>
<CAPTION>
REIT INDEX FUND
TOTAL INVESTMENT RETURNS: MAY 13, 1996-JULY 31, 1999
- ---------------------------------------------------------
                   REIT INDEX FUND               MORGAN
                                                STANLEY
                                               REIT INDEX
FISCAL     CAPITAL     INCOME      TOTAL         TOTAL
YEAR       RETURN      RETURN      RETURN        RETURN
- ---------------------------------------------------------
<S>        <C>        <C>          <C>        <C>
1997        26.6%       3.7%        30.3%         30.7%
1998        11.0        6.1         17.1          16.5
1999       -22.7        5.4        -17.3         -17.6
2000*        1.8        2.6          4.4           4.1
</TABLE>

*Six months ended July 31, 1999.

See Financial Highlights table on page 40 for dividend and capital gains
information since the fund's inception.

<TABLE>
<CAPTION>
AVERAGE ANNUAL TOTAL RETURNS: PERIODS ENDED JUNE 30, 1999*
- -------------------------------------------------------------------------------------------------------------
                                                                                     SINCE INCEPTION
                                                 INCEPTION                  ---------------------------------
                                                   DATE        1 YEAR        CAPITAL      INCOME       TOTAL
- -------------------------------------------------------------------------------------------------------------
<S>                                              <C>           <C>           <C>          <C>          <C>
REIT Index Fund**                                5/13/1996     -7.93%        4.24%        6.00%        10.24%
- -------------------------------------------------------------------------------------------------------------
</TABLE>

 *SEC rules require that we provide this average annual total return
  information through the latest calendar quarter.

**Total return figures do not reflect the 1% fee assessed on redemptions of
  shares held for less than one year.

                                       22
<PAGE>   25

FINANCIAL STATEMENTS
July 31, 1999 (unaudited)

[PHOTO]

STATEMENT OF NET ASSETS

This Statement provides a detailed list of each fund's holdings, including each
security's market value on the last day of the reporting period. Securities are
grouped and subtotaled by asset type (common stocks, bonds, etc.) and by sector
within the fund's designated industry; international securities, if
significant, may be presented in a separate group. The REIT Index Fund lists
its security holdings alphabetically. Other assets are added to, and
liabilities are subtracted from, the value of Total Investments to calculate
the fund's Net Assets. Finally, Net Assets are divided by the outstanding
shares of the fund to arrive at its share price, or Net Asset Value (NAV) Per
Share.

       At the end of the Statement of Net Assets, you will find a table
displaying the composition of the fund's net assets on both a dollar and
per-share basis. Because all income and any realized gains must be distributed
to shareholders each year, the bulk of net assets consists of Paid in Capital
(money invested by shareholders). The amounts shown for Undistributed Net
Investment Income and Accumulated Net Realized Gains usually approximate the
sums the fund had available to distribute to shareholders as income dividends
or capital gains as of the statement date, but may differ because certain
investments or transactions may be treated differently for financial statement
and tax purposes. Any Accumulated Net Realized Losses, and any cumulative
excess of distributions over net income or net realized gains, will appear as
negative balances. Unrealized Appreciation (Depreciation) is the difference
between the market value of the fund's investments and their cost, and reflects
the gains (losses) that would be realized if the fund were to sell all of its
investments at their statement-date values.

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                                   MARKET
                                                   VALUE*
ENERGY FUND                           SHARES        (000)
- ----------------------------------------------------------
<S>                                <C>          <C>
COMMON STOCKS (96.1%)
- ----------------------------------------------------------
UNITED STATES (71.9%)
- ----------------------------------------------------------
ENERGY MISCELLANEOUS (2.2%)
   Tosco Corp.                       500,000    $  13,187
   Valero Energy Corp.               500,000       10,688
                                                ----------
                                                   23,875
                                                ----------
MACHINERY--OIL WELL EQUIPMENT & SERVICES (17.2%)
   Baker Hughes, Inc.              1,375,500       47,884
   Halliburton Co.                   925,000       42,666
   Schlumberger Ltd.                 563,400       34,121

- -  Weatherford International, Inc.   737,599       28,905
- -  Noble Drilling Corp.              700,000       15,881
- -  Rowan Cos., Inc.                  778,800       14,651
- -  Cooper Cameron Corp.              160,000        5,800
- -  Nabors Industries, Inc.            46,400        1,082
                                                ----------
                                                  190,990
                                                ----------
MATERIALS & PROCESSING (0.7%)
   Fluor Corp.                       200,000        8,012
                                                ----------
OFFSHORE DRILLING (0.9%)
   ENSCO International, Inc.         500,000       10,219
                                                ----------
OIL--CRUDE PRODUCERS (10.5%)
   Vastar Resources, Inc.            487,200       31,851
   Enron Oil & Gas Co.               654,400       13,988
   Pogo Producing Co.                685,000       13,058
   Anadarko Petroleum Corp.          300,000       11,456
- -  Ocean Energy, Inc.              1,000,000       11,063
   Ultramar Diamond
    Shamrock Corp.                   431,900       10,204
- -  Santa Fe Snyder Corp.           1,077,900        9,970
   Devon Energy Corp.                220,000        8,099
- -  Barrett Resources Corp.           163,700        6,579
                                                ----------
                                                  116,268
                                                ----------
OIL--INTEGRATED DOMESTIC (28.1%)
   Unocal Corp.                    1,200,000       47,625
   USX-Marathon Group              1,481,400       44,998
   Chevron Corp.                     400,000       36,500
   Phillips Petroleum Co.            600,000       30,788
   Equitable Resources, Inc.         719,300       26,659
   Amerada Hess Corp.                400,000       23,675
   Kerr-McGee Corp.                  455,500       23,458
   Ashland, Inc.                     600,000       22,800
   Murphy Oil Corp.                  395,100       19,557
   Sunoco, Inc.                      639,967       19,519
   Occidental Petroleum Corp.        850,000       16,628
                                                ----------
                                                  312,207
                                                ----------
OIL--INTEGRATED INTERNATIONAL (10.5%)
   Mobil Corp.                       400,000       40,900
   Texaco Inc.                       628,388       39,156
   Exxon Corp.                       466,200       37,005
                                                ----------
                                                  117,061
                                                ----------
OTHER (1.8%)
   McDermott International, Inc.     700,000       19,731
                                                ----------
- ----------------------------------------------------------
TOTAL UNITED STATES                               798,363
- ----------------------------------------------------------
</TABLE>

                                       23

<PAGE>   26

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                                   MARKET
                                                   VALUE*
ENERGY FUND                           SHARES        (000)
- ----------------------------------------------------------
<S>                                <C>          <C>
INTERNATIONAL (24.2%)
- ----------------------------------------------------------
CANADA (11.9%)
   Alberta Energy Co., Ltd.          850,000    $  26,196
   Suncor Energy, Inc.               631,477       25,837
   Imperial Oil Ltd.               1,000,900       20,076
   Petro-Canada                    1,300,000       19,231
   Paramount Resources Ltd.        1,080,900       15,306
- -  Anderson Exploration Ltd.       1,012,401       13,121
   Talisman Energy, Inc.             155,000        4,601
   PanCanadian Petroleum Ltd.        283,400        4,438
   Poco Petes Ltd.                   400,000        3,532
                                                ----------
                                                  132,338
                                                ----------

FRANCE (2.3%)
   Total SA ADR                      398,489       25,354
                                                ----------

ITALY (1.8%)
   ENI SpA ADR                       330,500       20,140
                                                ----------

NORWAY (1.5%)
   Norsk Hydro ASA ADR               340,000       13,387
- -  Saga Petroleum ASA A Shares       190,000        3,294
                                                ----------
                                                   16,681
                                                ----------

SPAIN (1.1%)
   Repsol SA ADR                     577,500       11,947
                                                ----------

UNITED KINGDOM (5.6%)
   Shell Transport & Trading
    Co. ADR                        1,080,000       52,177
   Lasmo PLC                       2,000,000        5,395
   Burmah Castrol PLC                249,962        5,155
                                                ----------
                                                   62,727
                                                ----------
- ----------------------------------------------------------
TOTAL INTERNATIONAL                               269,187
- ----------------------------------------------------------
TOTAL COMMON STOCKS
   (COST $808,336)                              1,067,550
- ----------------------------------------------------------
<CAPTION>
- ----------------------------------------------------------
                                        FACE       MARKET
                                      AMOUNT       VALUE*
                                       (000)        (000)
- ----------------------------------------------------------
<S>                                <C>          <C>
TEMPORARY CASH INVESTMENTS (4.0%)
- ----------------------------------------------------------
REPURCHASE AGREEMENTS
Collateralized by U.S. Government
   Obligations in a Pooled
   Cash Account
   5.07%, 8/2/1999                   $43,169   $   43,169
   5.10%, 8/2/1999--Note H               806          806
- ----------------------------------------------------------
TOTAL TEMPORARY CASH INVESTMENTS
   (COST $43,975)                                  43,975
- ----------------------------------------------------------
TOTAL INVESTMENTS (100.1%)
   (COST $852,311)                              1,111,525
- ----------------------------------------------------------
OTHER ASSETS AND LIABILITIES (-0.1%)
- ----------------------------------------------------------
Other Assets--Note C                                2,883
Liabilities--Note H                                (3,741)
                                               -----------
                                                     (858)
- ----------------------------------------------------------
NET ASSETS (100%)
- ----------------------------------------------------------
Applicable to 47,470,793 outstanding $.001
   par value shares of beneficial interest
   (unlimited authorization)                   $1,110,667
==========================================================

NET ASSET VALUE PER SHARE                          $23.40
==========================================================
</TABLE>

*See Note A in Notes to Financial Statements.

- -Non-Income-Producing Security.

ADR--American Depositary Receipt.

<TABLE>
<CAPTION>
- ----------------------------------------------------------
 AT JULY 31, 1999, NET ASSETS CONSISTED OF:
- ----------------------------------------------------------
                                      AMOUNT          PER
                                       (000)        SHARE
- ----------------------------------------------------------
<S>                               <C>              <C>
 Paid in Capital                  $  851,091       $17.93
 Undistributed Net Investment
   Income--Note G                      8,342          .18
 Accumulated Net Realized
   Losses--Note G                     (7,979)        (.17)
 Unrealized Appreciation
   (Depreciation)--Note F
   Investment Securities             259,214         5.46
   Foreign Currencies                     (1)          --
- ----------------------------------------------------------
 NET ASSETS                       $1,110,667       $23.40
==========================================================
</TABLE>

                                       24

<PAGE>   27

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                                   MARKET
GOLD AND PRECIOUS                                  VALUE*
METALS FUND                           SHARES        (000)
- ----------------------------------------------------------
<S>                              <C>            <C>
COMMON STOCKS (91.2%)
- ----------------------------------------------------------
AUSTRALIA (35.8%)
- -  Newcrest Mining Ltd.           11,400,000    $  27,269
   Mount Isa Mines
    Holdings Ltd.                 31,000,000       25,709
   Rio Tinto Ltd.                    700,000       12,530
   Delta Gold NL                   7,500,000       11,020
   WMC Ltd.                        2,300,000       10,048
- -  Lihir Gold Ltd.                12,055,000        9,447
   Sons of Gwalia Ltd.             3,500,000        9,142
   Ashton Mining Ltd.             11,500,000        5,084
- -  Aurora Gold Ltd.                8,950,000        3,448
   Goldfields Ltd.                 4,760,000        2,869
- -  Bougainville Copper Ltd.        2,000,000          287
- -  Tanami Gold NL                  3,600,000          214
- -  Normandy Mining Ltd.
    Warrants Exp. 4/30/2001        1,620,000           94
- -  Star Mining Corp. NL           26,000,000           68
- -  Masmindo Mining
    Corporation NL                   127,230            9
   Australian Resources Ltd.      16,250,000            0
                                                ----------
                                                  117,238
                                                ----------
CANADA (14.2%)
   Euro-Nevada Mining Corp.        1,360,000       14,999
   Franco-Nevada Mining
    Corp., Ltd.                      760,000       10,711
   Aber Resources Ltd.               980,000        9,371
   Placer Dome Inc.                  600,000        6,177
   Barrick Gold Corp.                200,000        3,725
- -  Geomaque Explorations Ltd.      3,000,000        1,299
   Princess Resources Ltd.         5,684,000          114
   Greenstone Resources Ltd.         750,000           70
- -  Vengold, Inc.                   1,250,000           62
                                                ----------
                                                   46,528
                                                ----------
SOUTH AFRICA (18.3%)
   Impala Platinum Holdings
    Ltd. ADR                         850,000       27,022
   Anglo American Platinum
    Corp ADR                         953,400       22,586
   Anglogold Ltd. ADR                500,000       10,563
                                                ----------
                                                   60,171
                                                ----------
UNITED KINGDOM (3.1%)
   Rio Tinto PLC                     300,000        5,689
   Lonmin PLC                        450,000        4,447
                                                ----------
                                                   10,136
                                                ----------
UNITED STATES (19.8%)
   Newmont Mining Corp.              928,125       17,170
- -  Stillwater Mining Co.             750,000       16,969
   Freeport-McMoRan Copper &
    Gold, Inc. Class A               877,000       13,922
   Barrick Gold Corp.                575,000       10,673
- -  Royal Gold, Inc.                  726,200        2,769
   Freeport-McMoRan Copper &
    Gold, Inc. Gold Denomination
    Shares Pfd.                      150,000        2,578
- -  Crown Resources Corp.             600,000          900
- -  Atlas Corp.                     1,000,000           38
                                                ----------
                                                   65,019
                                                ----------
- ----------------------------------------------------------
TOTAL COMMON STOCKS
   (COST $355,425)                                299,092
- ----------------------------------------------------------
PRECIOUS METALS (6.1%)
- ----------------------------------------------------------
- -  Gold Bullion (74,868 Ounces)                    19,143
- -  Platinum Bullion (2,009 Ounces)                    693
- ----------------------------------------------------------
TOTAL PRECIOUS METALS
   (COST $31,918)                                  19,836
- ----------------------------------------------------------
<CAPTION>
                                        FACE
                                      AMOUNT
                                       (000)
- ----------------------------------------------------------
<S>                                   <C>       <C>
TEMPORARY CASH INVESTMENTS (3.4%)
- ----------------------------------------------------------
REPURCHASE AGREEMENTS
Collateralized by U.S. Government
   Obligations in a Pooled
   Cash Account
   5.07%, 8/2/1999                    $9,040        9,040
   5.10%, 8/2/1999--Note H             2,283        2,283
- ----------------------------------------------------------
TOTAL TEMPORARY CASH INVESTMENTS
   (COST $11,323)                                  11,323
- ----------------------------------------------------------
TOTAL INVESTMENTS (100.7%)
   (COST $398,666)                                330,251
- ----------------------------------------------------------
OTHER ASSETS AND LIABILITIES (-0.7%)
- ----------------------------------------------------------
Other Assets--Note C                                  859
Liabilities--Note H                                (3,266)
                                                ----------
                                                   (2,407)
- ----------------------------------------------------------
NET ASSETS (100%)
- ----------------------------------------------------------
Applicable to 45,101,624 outstanding $.001
   par value shares of beneficial interest
   (unlimited authorization)                     $327,844
==========================================================

NET ASSET VALUE PER SHARE                           $7.27
==========================================================
</TABLE>

*See Note A in Notes to Financial Statements.

- -Non-Income-Producing Security.

ADR--American Depositary Receipt.

<TABLE>
<CAPTION>
- ----------------------------------------------------------
 AT JULY 31, 1999, NET ASSETS CONSISTED OF:
- ----------------------------------------------------------
                                      AMOUNT          PER
                                       (000)        SHARE
- ----------------------------------------------------------
<S>                               <C>              <C>
 Paid in Capital                    $495,008       $10.98
 Undistributed Net Investment

   Income--Note G                      1,690          .04
 Accumulated Net Realized
   Losses--Note G                   (100,439)       (2.23)
 Unrealized Depreciation--Note F     (68,415)       (1.52)
- ----------------------------------------------------------
 NET ASSETS                         $327,844      $  7.27
==========================================================
</TABLE>

                                       25
<PAGE>   28

<TABLE>
<CAPTION>
- -----------------------------------------------------------
                                                    MARKET
                                                    VALUE*
HEALTH CARE FUND                       SHARES        (000)
- -----------------------------------------------------------
<S>                                <C>        <C>
COMMON STOCKS (89.9%)
- -----------------------------------------------------------
UNITED STATES (68.9%)
- -----------------------------------------------------------
BIOTECH RESEARCH & PRODUCTION (1.3%)
- -(1)Human Genome Sciences, Inc.     1,268,000  $    66,015
- -   Gilead Science, Inc.            1,510,000       25,116
- -   IDEXX Laboratories Corp.        1,070,000       20,999
    Baxter International, Inc.        300,000       20,606
- -   Cephalon, Inc.                    290,000        5,474
                                               ------------
                                                   138,210
                                               ------------
CONSUMER DISCRETIONARY (0.6%)
    Kimberly-Clark Corp.            1,000,000       61,000
- -(1)Paragon Trade Brands, Inc.      1,124,100          632
                                               ------------
                                                    61,632
                                               ------------
CONSUMER STAPLES (0.2%)
    Rite Aid Corp.                  1,000,000       21,188
                                               ------------

DRUGS & PHARMACEUTICALS (38.3%)
    Warner-Lambert Co.              6,971,172      460,097
    Pharmacia & Upjohn, Inc.        8,277,800      445,449
- -   Immunex Corp.                   3,549,800      400,684
    Johnson & Johnson               3,501,000      322,530
    Bristol-Myers Squibb Co.        4,850,000      322,525
    Allergan, Inc.                  3,259,300      308,004
    Abbott Laboratories             6,854,500      294,315
    Pfizer, Inc.                    6,015,000      204,134
    American Home
     Products Corp.                 3,917,300      199,782
    Merck & Co., Inc.               2,830,000      191,556
- -   Genzyme Corp.                   2,736,620      154,790
- -   Gilead Sciences, Inc.           1,510,000      117,025
    Cardinal Health, Inc.           1,556,072      106,202
- -(1)IDEC Pharmaceuticals Corp.      1,043,100      103,397
    Bergen Brunswig
     Corp. Class A                  5,568,412       89,095
    Eli Lilly & Co.                   760,000       49,875
- -(1)Perrigo Co.                     5,322,320       47,901
- -(1)Vertex Pharmaceuticals, Inc.    1,827,700       46,149
 (1)Alpharma, Inc. Class A          1,083,713       40,233
- -   AmeriSource Health Corp.          988,700       27,684
- -(1)Pharmacyclics, Inc.               800,000       22,550
    Schering-Plough Corp.             440,000       21,560
- -   Forest Laboratories, Inc.         326,400       16,728
- -(1)PAREXEL International Corp.     1,388,200       15,270
- -   Cor Therapeutics, Inc.            530,000       10,567
    Mylan Laboratories, Inc.          445,000       10,124
- -   Triangle Pharmaceuticals, Inc.    564,800        9,849
- -(1)Alliance Pharmaceutical Corp.   2,467,688        8,174
- -   BioCryst Pharmaceuticals, Inc.    352,100        4,291
- -(1)Magainin
     Pharmaceuticals, Inc.          1,328,100        2,034
- -   Scios, Inc.                       491,750        1,967
- -   Crescendo
     Pharmaceuticals Corp.             51,500          892
- -   Matrix Pharmaceutical, Inc.       200,500          752
- -   U.S. Bioscience                    80,400          678
                                               ------------
                                                 4,056,863
                                               ------------
ELECTRONICS--MEDICAL SYSTEMS (1.1%)
- -(1)Haemonetics Corp.               1,983,900       37,074
- -   IDX Systems Corp.               1,209,200       25,242
    Medtronic, Inc.                   263,936       19,020
    DENTSPLY International Inc.       500,000       13,531
- -   Datascope Corp.                   342,100       11,888
- -   SpaceLabs Medical, Inc.           326,200        5,158
                                               ------------
                                                   111,913
                                               ------------
HEALTH & PERSONAL CARE (3.0%)
    McKesson HBOC, Inc.             8,935,650      277,564
- -(1)Syncor International Corp.        856,559       25,376
    Omnicare, Inc.                  1,000,000       10,750
- -   American Retirement Corp.         637,000        8,480
                                               ------------
                                                   322,170
                                               ------------
HEALTH CARE FACILITIES (4.5%)
    Columbia/HCA
     Healthcare Corp.              10,667,620      237,354
- -   Tenet Healthcare Corp.          7,835,000      140,540
- -(1)Quest Diagnostics, Inc.         2,154,200       55,471
- -   Beverly Enterprises, Inc.       3,030,000       17,422
- -   Laboratory Corp. of America     3,796,216       12,338
- -   Triad Hospitals, Inc.             691,715        7,306
- -   LifePoint Hospitals, Inc.         691,715        6,831
                                               ------------
                                                   477,262
                                               ------------
HEALTH CARE MANAGEMENT SERVICES (6.8%)
    United Healthcare Corp.         4,200,000      256,200
    Aetna Inc.                      1,332,000      109,224
- -(1)Humana, Inc.                    9,845,000      107,064
    Shared Medical Systems Corp.    1,100,000       65,863
- -   Pacificare Health Systems, Inc.   920,193       62,746
- -(1)Cerner Corp.                    2,006,600       33,485
- -(1)Sierra Health Services          2,089,600       27,034
- -   Quorum Health Group, Inc.       2,145,000       21,584
- -   Foundation Health Systems
     Class A                          663,100       10,071
- -   Pediatrix Medical Group, Inc.     414,100        8,153
    American Medical Security
     Group, Inc.                      678,000        7,204
    United Wisconsin Services, Inc.   678,000        5,721
- -   Mid Atlantic Medical
     Services, Inc.                   500,000        5,063
                                               ------------
                                                   719,412
                                               ------------
MATERIALS & PROCESSING (2.0%)
    Sigma-Aldrich Corp.             4,656,000      156,558
    Pioneer Hi-Bred
     International, Inc.            1,170,700       45,511
    Delta & Pine Land Co.             307,300        9,257
                                               ------------
                                                   211,326
                                               ------------
MEDICAL & DENTAL INSTRUMENTS & SUPPLIES (6.9%)
(1) C.R. Bard, Inc.                 3,237,900      157,443
- -   Boston Scientific Corp.         3,073,700      124,677
    Becton, Dickinson & Co.         3,562,500       97,746
- -   St. Jude Medical, Inc.          2,551,300       94,876
    PE Corp.-PE Biosystems Group    1,309,090       73,391
    Beckman Coulter, Inc.           1,244,700       59,823
</TABLE>

                                       26

<PAGE>   29

<TABLE>
<CAPTION>
- -----------------------------------------------------------
                                                    MARKET
                                                    VALUE*
                                       SHARES        (000)
- -----------------------------------------------------------
<S>                                <C>        <C>
    Biomet, Inc.                    1,345,300  $    48,935
(1) Owens & Minor, Inc.
     Holding Co.                    2,006,100       24,700
- -   STERIS Corp.                    1,150,000       15,525
- -   Ventana Medical Systems, Inc.     614,400       12,826
- -(1)Collagen Aesthetics, Inc.         617,600        7,411
- -   Safeskin Corp.                    500,000        4,438
- -   Sonosite, Inc.                    204,166        3,688
- -(1)Cohesion Technologies, Inc.       525,800        3,089
- -   Protocol Systems, Inc.            273,000        2,150
- -   ADAC Laboratories                 255,000        1,801
- -   E-Z-EM, Inc. Class B              304,344        1,750
- -(1)E-Z-EM, Inc. Class A              219,258        1,288
                                               ------------
                                                   735,557
                                               ------------
MEDICAL SERVICES (0.8%)
- -   Covance, Inc.                   2,287,300       44,888
- -(1)Coventry Health Care Inc.       3,785,000       41,871
                                               ------------
                                                    86,759
                                               ------------
MISCELLANEOUS HEALTH CARE (0.5%)
    Mallinckrodt, Inc.              1,397,900       47,354
                                               ------------
PRODUCER DURABLES (0.3%)
    Pall Corp.                        704,600       14,841
- -   PE Corp.-Celera
     Genomics Group                   327,273        8,673
- -   Varian Semiconductor
     Equipment Associates, Inc.       253,000        5,882
                                               ------------
                                                    29,396
                                               ------------
TECHNOLOGY (0.1%)
    Varian Medical Systems, Inc.      253,000        5,930
- -   Varian, Inc.                      253,000        3,842
- -   DAOU Systems, Inc.                513,500        2,824
                                               ------------
                                                    12,596
                                               ------------
OTHER (2.5%)
    Monsanto Co.                    5,125,000      200,516
- -   Thermo Electron Corp.           3,300,000       56,719
    Carter-Wallace, Inc.              230,000        4,241
    Carter-Wallace, Inc. Class B       24,000          442
                                               ------------
                                                   261,918
                                               ------------
- -----------------------------------------------------------
TOTAL UNITED STATES                              7,293,556
- -----------------------------------------------------------
INTERNATIONAL (21.0%)
- -----------------------------------------------------------
JAPAN (8.9%)
    Fujisawa Pharmaceutical
     Co., Ltd.                      7,670,000      144,696
    Eisai Co., Ltd.                 6,606,000      140,453
    Takeda Chemical
     Industries Ltd.                2,550,000      138,208
    Banyu Pharmaceutical Co.        5,095,000       99,891
    Yamanouchi Pharmaceuticals
     Co., Ltd.                      2,080,000       96,241
    Chugai Pharmaceutical
     Co., Ltd.                      6,513,000       78,886
    Sankyo Co., Ltd.                2,450,000       64,686
    Daiichi Pharmaceutical
     Co., Ltd.                      2,900,000       48,392
    Shionogi & Co., Ltd.            4,703,000       40,940
    Olympus Optical Co., Ltd.       2,600,000       39,534
    Tanabe Seiyaku Co., Ltd.        5,825,000       36,545
    Terumo Corp.                      326,000        8,139
    Ono Pharmaceutical Co., Ltd.      200,000        7,651
                                               ------------
                                                   944,262
                                               ------------
UNITED KINGDOM (6.7%)
    AstraZeneca Group PLC           7,086,372      260,424
    SmithKline Beecham PLC ADR      3,524,500      211,690
    AstraZeneca Group PLC ADR       3,531,500      128,990
    Nycomed Amersham PLC           12,565,820       82,852
    SSL International PLC           1,487,000       18,308
- -   Oxford GlycoSciences PLC          375,000        2,078
    Medeva PLC                        287,781          564
                                               ------------
                                                   704,906
                                               ------------
OTHER (5.4%)
    Novartis AG (Registered)           71,747      103,514
    Rhone-Poulenc SA ADR            2,052,615       99,295
    Roche Holdings AG
     (Dividend-Right Certificates)      8,000       88,361
    Bayer AG ADR                    1,850,000       79,319
    Bayer AG                        1,328,300       57,009
    Novo Nordisk A/S B Shares         500,000       55,310
    Hoechst AG                        900,000       38,232
    Sanofi-Synthelabo SA              615,004       25,572
    Schering AG                       213,470       22,276
    Gambro AB                       1,000,000       10,122
                                               ------------
                                                   579,010
                                               ------------
- -----------------------------------------------------------
TOTAL INTERNATIONAL                              2,228,178
- -----------------------------------------------------------
TOTAL COMMON STOCKS
   (COST $6,391,790)                             9,521,734
- -----------------------------------------------------------
CONVERTIBLE PREFERRED STOCK (0.2%)
- -----------------------------------------------------------
   Laboratory Corp. 8.50% Cvt. Pfd.
    (COST $23,484)                    358,721       22,510
- -----------------------------------------------------------
<CAPTION>
                                        FACE
                                      AMOUNT
                                       (000)
- ----------------------------------------------------------
<S>                                   <C>       <C>
TEMPORARY CASH INVESTMENTS (10.4%)
- ----------------------------------------------------------
COMMERCIAL PAPER (8.5%)
Associates Corp
   5.211%, 8/25/1999               $  50,000       49,830
   5.211%, 8/26/1999                  50,000       49,823
General Electric Capital Corp.
   5.197%, 9/2/1999                  300,000      298,643
Merrill Lynch & Co.
   5.153%, 8/26/1999                 110,000      109,614
   5.173%, 9/2/1999                  200,000      199,099
Metlife Funding Inc.
   5.151%, 8/5/1999                   46,528       46,502
   5.155%, 8/23/1999                  57,291       57,114
   5.164%, 8/9/1999                   24,169       24,142
Proctor & Gamble Co.
   5.185%, 9/15/1999                  70,000       69,565
                                                ----------
                                                  904,332
                                                ----------
REPURCHASE AGREEMENTS (1.4%)
Collateralized by U.S. Government
   Obligations in a Pooled
   Cash Account
   5.10%, 8/2/1999--Note H            30,822       30,822
</TABLE>

                                       27
<PAGE>   30

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                        FACE       MARKET
                                      AMOUNT       VALUE*
HEALTH CARE FUND                       (000)        (000)
- ----------------------------------------------------------
<S>                                <C>        <C>
Lehman Brothers
   5.05%, 8/2/1999
   (Dated 7/30/1999, Repurchase
   Value $119,909,000, collateralized
   by U.S. Treasury Bond, 10.625%,
   8/15/2015 and U.S. Treasury
   Note, 7.50%, 2/15/2005)          $119,859  $   119,859
                                              ------------
                                                  150,681
                                              ------------
U.S. GOVERNMENT OBLIGATION (0.5%)

U.S. Treasury Bill
   4.58%, 10/28/1999                  55,000       54,388
                                              ------------
- ----------------------------------------------------------
TOTAL TEMPORARY CASH INVESTMENTS
   (COST $1,109,394)                            1,109,401
- ----------------------------------------------------------
TOTAL INVESTMENTS (100.5%)
   (COST $7,524,668)                           10,653,645
- ----------------------------------------------------------
OTHER ASSETS AND LIABILITIES (-0.5%)
- ----------------------------------------------------------
Other Assets--Note C                               16,113
Liabilities--Note H                               (77,484)
                                              ------------
                                                  (61,371)
- ----------------------------------------------------------
NET ASSETS (100%)
- ----------------------------------------------------------
Applicable to 108,759,460 outstanding $.001
   par value shares of beneficial interest
   (unlimited authorization)                  $10,592,274
==========================================================

NET ASSET VALUE PER SHARE                          $97.39
==========================================================
</TABLE>

  *See Note A in Notes to Financial Statements.

  -Non-Income-Producing Security.

(1)Considered an affiliated company as the fund owns more than 5% of the
   outstanding voting securities of such company. The total market value of
   investments in affiliated companies was $873,661,000.

ADR--American Depositary Receipt.

<TABLE>
<CAPTION>
- ----------------------------------------------------------
 AT JULY 31, 1999, NET ASSETS CONSISTED OF:
- ----------------------------------------------------------
                                      AMOUNT          PER
                                       (000)        SHARE
- ----------------------------------------------------------
<S>                            <C>                 <C>
 Paid in Capital                $  7,109,936       $65.37
 Undistributed Net Investment
   Income--Note G                     52,076          .48
 Accumulated Net Realized
   Gains--Note G                     308,404         2.84
 Unrealized Appreciation
   (Depreciation)--Note F
   Investment Securities           3,128,977        28.77
   Foreign Currencies and
   Forward Currency Contracts         (7,119)        (.07)
- ----------------------------------------------------------
 NET ASSETS                      $10,592,274       $97.39
==========================================================
</TABLE>

                                       28
<PAGE>   31

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                                   MARKET
                                                   VALUE*
UTILITIES INCOME FUND                 SHARES        (000)
- ----------------------------------------------------------
<S>                                <C>        <C>
COMMON STOCKS (87.9%)
- ----------------------------------------------------------
ELECTRICAL (38.9%)
   Pinnacle West Capital Corp.       844,300    $  33,719
   Montana Power Co.                 492,200       33,316
   DQE Inc.                          827,930       32,807
   Unicom Corp.                      650,000       25,513
   New England Electric System       467,100       24,202
   GPU, Inc.                         558,700       21,440
   NiSource, Inc.                    731,000       18,960
   Texas Utilities Co.               425,000       18,036
   Edison International              650,000       16,453
   PECO Energy Corp.                 375,000       15,891
   DPL Inc.                          783,000       15,024
   Duke Energy Corp.                 227,220       12,028
   Endesa SA ADR                     599,800       11,846
   FirstEnergy Corp.                 400,000       11,425
   CMS Energy Corp.                  300,000       11,212
   Public Service Enterprise
    Group, Inc.                      250,000       10,078
   PowerGen PLC ADR                  254,500        9,941
   Central Hudson Gas &
    Electric Corp.                   216,300        9,057
   Northern States Power Co.         397,800        8,951
   FPL Group, Inc.                   150,000        8,091
   DTE Energy Co.                    199,500        7,805
   PacifiCorp                        350,000        6,388
   Cilcorp, Inc.                      85,000        5,440
   Minnesota Power, Inc.             230,000        4,356
   National Power PLC ADR            150,000        4,350
   Public Service Co. of
    New Mexico                       200,000        3,988
   Cinergy Corp.                     100,000        2,994
                                                ----------
                                                  383,311
                                                ----------
GAS DISTRIBUTION (4.1%)
   National Fuel Gas Co.             350,000       16,428
   Sempra Energy                     374,071        8,300
   ONEOK, Inc.                       145,400        4,626
   KeySpan Corp.                     150,000        4,163
   MCN Energy Group Inc.             137,000        2,920
   Peoples Energy Corp.               75,000        2,761
   Public Service Co. of
    North Carolina, Inc.              39,300        1,177
                                                ----------
                                                   40,375
                                                ----------
INTEGRATED OILS (4.1%)
   Enron Corp.                       400,000       34,075
   Coastal Corp.                     175,000        6,923
                                                ----------
                                                   40,998
                                                ----------
OTHER ENERGY (6.0%)
   Williams Cos., Inc.               550,000       23,134
   El Paso Energy Corp.              636,400       22,791
   Columbia Energy Group             187,500       11,156
   Westcoast Energy Inc.             100,000        1,906
                                                ----------
                                                   58,987
                                                ----------
TELECOMMUNICATIONS (31.1%)
   Bell Atlantic Corp.               695,000       44,306
- -  Sprint Corp.                      834,200       43,118
   Ameritech Corp.                   550,000       40,287
   BellSouth Corp.                   655,200       31,450
   British Telecommunications
    PLC ADR                          150,000       26,400
   Frontier Corp.                    440,200       24,403
   ALLTEL Corp.                      330,000       23,698
   Vodafone Airtouch Group
    PLC ADR                          100,000       21,050
   AT&T Corp.                        375,000       19,477
   Telecom Corp. of New Zealand
    Ltd. ADR                         300,800       10,735
- -  Telefonica SA                     187,458        8,951
   Sprint PCS                        128,550        7,793
   BCE, Inc.                         100,000        4,969
                                                ----------
                                                  306,637
                                                ----------
WATER (2.0%)
   American Water Works Co., Inc.    346,300       10,367
   Suez Lyonnaise des Eaux            50,000        8,830
                                                ----------
                                                   19,197
                                                ----------
OTHER (1.7%)
   MDU Resources Group, Inc.         300,000        7,313
   UtiliCorp United, Inc.            285,750        6,804
   BCT.Telus Communications, Inc.    100,912        2,259
   BCT.Telus Communications, Inc.,    33,637          736
    (non-voting)
                                                ----------
                                                   17,112
                                                ----------
- ----------------------------------------------------------
TOTAL COMMON STOCKS
   (COST $670,442)                                866,617
- ----------------------------------------------------------
<CAPTION>
                                        FACE
                                      AMOUNT
                                       (000)
- ----------------------------------------------------------
<S>                                  <C>          <C>
CORPORATE BONDS (10.6%)
- ----------------------------------------------------------
ELECTRIC (7.1%)
Alabama Power Co.
   5.35%, 11/15/2003                 $ 2,000        1,912
Appalachian Power Co.
   6.60%, 5/1/2009                     2,000        1,898
Arizona Public Service Co.
   6.25%, 1/15/2005                    2,000        1,912
Baltimore Gas & Electric Co.
   7.50%, 1/15/2007                    4,000        4,124
Carolina Power & Light Co.
   8.625%, 9/15/2021                   3,000        3,369
Central Power & Light Co.
   7.25%, 10/1/2004                    2,000        2,038
Consolidated Edison Co. of
   New York, Inc.
   6.45%, 12/1/2007                    4,000        3,860
Duke Energy Corp.
   6.625%, 2/1/2003                    4,000        4,010
Florida Power & Light Corp.
   6.00%, 6/1/2008                     4,000        3,750
Florida Power Corp.
   6.75%, 2/1/2028                     4,000        3,693
GTE Southwest Inc.
   6.23%, 1/1/2007                     1,000          953
Kentucky Utilities Co.
   7.92%, 5/15/2007                    2,000        2,101
Louisville Gas & Electric
   Energy Corp.
   6.00%, 8/15/2003                    2,000        1,954
</TABLE>

                                       29
<PAGE>   32

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                        FACE       MARKET
                                      AMOUNT       VALUE*
UTILITIES INCOME FUND                  (000)        (000)
- ----------------------------------------------------------
<S>                                <C>        <C>
NRG Energy, Inc.
   7.50%, 6/15/2007                 $  1,000   $      988
Northern States Power Co.
   5.75%, 10/1/2003                    4,000        3,897
Oklahoma Gas & Electric Co.
   6.50%, 4/15/2028                    1,275        1,153
PECO Energy
   6.50%, 5/1/2003                     3,000        2,983
PP&L Capital Funding Inc.
   6.79%, 11/22/2004                   2,000        1,948
Pennsylvania Electric Co.
   6.125%, 4/1/2009                    2,000        1,881
Potomac Electric Power Co.
   6.50%, 9/15/2005                    1,000          982
Public Service Co. of Colorado
   7.125%, 6/1/2006                    4,000        4,046
Puget Sound Energy Inc.
   6.46%, 3/9/2009                     1,000          955
Southern Indiana Gas & Electric Co.
   8.875%, 6/1/2016                    2,000        2,324
Virginia Electric & Power Co.
   6.00%, 8/1/2001                     2,000        1,986
West Texas Utilities Co.
   7.75%, 6/1/2007                     1,500        1,572
Wisconsin Electric Power Co.
   6.625%, 11/15/2006                  2,000        1,979
Wisconsin Power & Light
   5.70%, 10/15/2008                   4,000        3,679
Wisconsin Public Service Corp.
   6.80%, 2/1/2003                     4,500        4,541
                                                ----------
                                                   70,488
                                                ----------
GAS (0.2%)
Atlanta Gas Light Co.
   5.90%, 10/6/2003                    2,000        1,945
Wisconsin Gas Co.
   5.50%, 1/15/2009                      535          484
                                                ----------
                                                    2,429
                                                ----------
TELEPHONE (3.3%)
AT&T Corp.
   7.00%, 5/15/2005                    2,000        2,013
Bell Atlantic Pennsylvania, Inc.
   6.625%, 9/15/2002                   3,500        3,521
Chesapeake & Potomac
   Telephone Co. (MD)
   8.30%, 8/1/2031                     1,000        1,104
Chesapeake & Potomac
   Telephone Co. (VA)
   7.875%, 1/15/2022                   2,000        2,149
GTE California Inc.
   6.70%, 9/1/2009                     2,000        1,956
GTE Corp.
   7.51%, 4/1/2009                     2,000        2,062
Indiana Bell Telephone Co., Inc.
   7.30%, 8/15/2026                    2,000        1,977
New Jersey Bell Telephone Co.
   8.00%, 6/1/2022                     3,000        3,197
New York Telephone Co.
   8.625%, 11/15/2010                  2,500        2,801
Pacific Bell
   6.625%, 11/1/2009                   3,000        2,921
Southwestern Bell Telephone Co.
   6.625%, 4/1/2005                    3,000        2,984
Sprint Capital Corp.
   5.70%, 11/15/2003                   3,000        2,866
United Telephone Co. of Florida
   6.25%, 5/15/2003                    2,000        1,960
WorldCom Inc.
   6.40%, 8/15/2005                    1,000          972
                                                ----------
                                                   32,483
                                                ----------
- ----------------------------------------------------------
TOTAL CORPORATE BONDS
   (COST $107,163)                                105,400
- ----------------------------------------------------------
FOREIGN BOND (U.S. DOLLAR-DENOMINATED)(0.2%)
- ----------------------------------------------------------
United Utilities PLC
   6.45%, 4/1/2008
   (COST $1,999)                       2,000        1,871
- ----------------------------------------------------------
TEMPORARY CASH INVESTMENTS (2.4%)
- ----------------------------------------------------------
REPURCHASE AGREEMENTS
Collateralized by U.S. Government
   Obligations in a Pooled
   Cash Account
   5.07%, 8/2/1999                     8,401        8,401
   5.10%, 8/2/1999--Note H            14,923       14,923
- ----------------------------------------------------------
TOTAL TEMPORARY CASH INVESTMENTS
   (COST $23,324)                                  23,324
- ----------------------------------------------------------
TOTAL INVESTMENTS (101.1%)
   (COST $802,928)                                997,212
- ----------------------------------------------------------
OTHER ASSETS AND LIABILITIES (-1.1%)
- ----------------------------------------------------------
Other Assets--Note C                                5,979
Liabilities--Note H                               (16,934)
                                                ----------
                                                  (10,955)
- ----------------------------------------------------------
NET ASSETS (100%)
- ----------------------------------------------------------
Applicable to 61,115,598 outstanding $.001
   par value shares of beneficial interest
   (unlimited authorization)                     $986,257
==========================================================

NET ASSET VALUE PER SHARE                          $16.14
==========================================================
</TABLE>

*See Note A in Notes to Financial Statements.

- -Non-Income-Producing Security.

ADR--American Depositary Receipt.

<TABLE>
<CAPTION>
- ----------------------------------------------------------
 AT JULY 31, 1999, NET ASSETS CONSISTED OF:
- ----------------------------------------------------------
                                      AMOUNT          PER
                                       (000)        SHARE
- ----------------------------------------------------------
<S>                               <C>              <C>
 Paid in Capital                    $757,345       $12.39
 Undistributed Net
   Investment Income                   1,155          .02
 Accumulated Net Realized Gains       33,473          .55
 Unrealized Appreciation--
   Note F                            194,284         3.18
- ----------------------------------------------------------
 NET ASSETS                         $986,257       $16.14
==========================================================
</TABLE>

                                       30

<PAGE>   33

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                                   MARKET
                                                   VALUE*
REIT INDEX FUND                       SHARES        (000)
- ----------------------------------------------------------
<S>                                <C>        <C>
REAL ESTATE INVESTMENT TRUSTS (98.2%)
- ----------------------------------------------------------
   Equity Office Properties
    Trust REIT                     2,078,001    $  52,210
   Equity Residential Properties
    Trust REIT                       972,678       40,184
   Simon Property Group,
    Inc. REIT                      1,381,376       36,693
   Public Storage, Inc. REIT       1,093,436       28,088
   ProLogis Trust REIT             1,297,473       25,220
   Vornado Realty Trust REIT         684,182       24,203
   Archstone Communities
    Trust REIT                     1,120,627       24,163
   Crescent Real Estate, Inc. REIT 1,020,900       22,460
   Apartment Investment &
    Management Co. Class A REIT      499,750       20,396
   Duke Realty Investments, Inc.
    REIT                             932,311       20,394
   Spieker Properties, Inc. REIT     509,200       19,477
   Host Marriott Corp. REIT        1,836,000       18,934
   Kimco Realty Corp. REIT           480,500       18,019
   Avalonbay Communities, Inc.
    REIT                             522,027       17,716
   Boston Properties, Inc. REIT      512,550       17,555
   Cornerstone Properties, Inc.
    REIT                           1,032,600       16,457
   AMB Property Corp. REIT           699,400       15,736
   Rouse Co. REIT                    590,600       14,359
   New Plan Excel Realty Trust REIT  729,161       13,581
   General Growth Properties Inc.
    REIT                             402,300       13,301
   Mack-Cali Realty Corp. REIT       469,400       13,143
   CarrAmerica Realty Corp. REIT     542,900       13,097
   Liberty Property Trust REIT       532,900       12,590
   Post Properties, Inc. REIT        302,813       12,113
   Arden Realty Group, Inc. REIT     507,500       11,990
   Hospitality Properties Trust REIT 437,800       11,930
   Highwood Properties, Inc. REIT    487,400       11,454
   Prison Realty Trust, Inc. REIT    798,800       11,083
   FelCor Lodging Trust, Inc. REIT   553,600       10,795
   Franchise Finance Corp. of
    America REIT                     458,300       10,426
   Regency Realty Corp. REIT         469,300        9,914
   United Dominion Realty Trust
    REIT                             836,676        9,569
   Camden Property Trust REIT        333,826        9,389
   Cousins Properties, Inc. REIT     255,065        9,374
   Westfield America, Inc. REIT      592,300        9,255
   BRE Properties Inc. Class A REIT  366,200        9,201
   Weingarten Realty Investors
    REIT                             217,700        8,790
   First Industrial Realty Trust
    REIT                             300,800        7,783
   Developers Diversified Realty
    Corp. REIT                       492,500        7,449
   MeriStar Hospitality Corp. REIT   387,096        7,403
   Federal Realty Investment Trust
    REIT                             325,600        7,367
   Prentiss Properties Trust REIT    304,900        7,032
   The Macerich Co. REIT             280,900        6,847
   Storage USA, Inc. REIT            223,600        6,820
   Cabot Industrial Trust REIT       325,500        6,632
   Chateau Communities, Inc. REIT    228,140        6,416
   Shurgard Storage Centers, Inc.
    Class A REIT                     230,100        6,213
   CenterPoint Properties Corp.
    REIT                             165,500        5,917
   Colonial Properties Trust REIT    212,600        5,767
   JDN Realty Corp. REIT             269,600        5,746
   Brandywine Realty Trust REIT      303,800        5,696
   Taubman Co. REIT                  426,100        5,646
   Realty Income Corp. REIT          222,200        5,361
   Trinet Corporate Realty Trust,
    Inc. REIT                        206,100        5,333
   Reckson Associates Realty
    Corp. REIT                       229,900        5,130
   Manufactured Home
    Communities, Inc. REIT           209,200        5,073
   CBL & Associates Properties,
    Inc. REIT                        200,500        5,037
   Gables Residential Trust REIT     206,300        5,003
   Charles E. Smith Residential
    Realty, Inc. REIT                144,800        4,905
   Kilroy Realty Corp. REIT          216,900        4,880
   Washington REIT                   288,200        4,863
   Summit Properties, Inc. REIT      229,200        4,699
   Sun Communities, Inc. REIT        135,600        4,627
   Glenborough Realty Trust, Inc.
    REIT                             262,900        4,601
   Essex Property Trust, Inc. REIT   135,900        4,587
   Urban Shopping Centers, Inc.
    REIT                             147,100        4,505
   PS Business Parks, Inc. REIT      175,100        4,268
   Chelsea GCA Realty, Inc. REIT     121,700        4,229
   Mills Corp. REIT                  197,153        4,042
   SL Green Realty Corp. REIT        192,700        3,986
   Home Properties of New York,
    Inc. REIT                        144,700        3,970
   Walden Residential Properties,
    Inc. REIT                        196,900        3,963
   Koger Equity, Inc. REIT           212,600        3,827
   Bradley Real Estate Inc. REIT     191,440        3,709
   Pacific Gulf Properties, Inc.
    REIT                             160,100        3,682
   Cornerstone Realty Income
    Trust, Inc. REIT                 343,900        3,611
   Berkshire Realty Co., Inc. REIT   299,800        3,504
   Alexandria Real Estate Equities,
    Inc. REIT                        112,200        3,352
   Pan Pacific Retail Properties,
    Inc. REIT                        168,700        3,311
   Mid-America Apartment
    Communities, Inc. REIT           151,000        3,303
   Bedford Property Investors,
    Inc. REIT                        182,800        3,267
   Burnham Pacific Properties,
   Glimcher Realty Trust REIT        191,200        3,155
    Inc. REIT                        257,100        3,246
   AMLI Residential Properties
    Trust REIT                       133,700        2,883
   Commercial Net Lease
    Realty REIT                      243,300        2,859
   Prime Retail, Inc. REIT           340,208        2,849
</TABLE>

                                       31
<PAGE>   34

<TABLE>
<CAPTION>
- ----------------------------------------------------------
                                                   MARKET
                                                   VALUE*
REIT INDEX FUND                       SHARES        (000)
- ----------------------------------------------------------
<S>                                <C>        <C>
   JP Realty Inc. REIT               138,500   $    2,735
   Parkway Properties Inc. REIT       81,500        2,710
   Sunstone Hotel Investors, Inc.
    REIT                             296,600        2,706
   Equity Inns, Inc. REIT            290,300        2,685
   IRT Property Co. REIT             267,900        2,612
   RFS Hotel Investors, Inc. REIT    204,300        2,579
   EastGroup Properties, Inc. REIT   131,450        2,448
   Innkeepers USA Trust REIT         275,800        2,448
   Sovran Self Storage, Inc. REIT     99,200        2,424
   National Golf Properties, Inc.
    REIT                             103,100        2,423
   Reckson Associates Realty
    Corp. Class B REIT               108,899        2,409
   Town & Country Trust REIT         133,600        2,346
   Pennsylvania REIT                 109,700        2,215
   Center Trust, Inc.                195,500        2,187
   Capital Automotive REIT           165,000        2,104
   Great Lakes, Inc. REIT            130,300        2,085
   U.S. Restaurant Properties,
    Inc. REIT                        111,000        2,081
   American Industrial
    Properties REIT                  159,100        2,058
   Prime Group Realty Trust REIT     116,300        1,963
   Konover Property Trust, Inc. REIT 248,500        1,957
   Boykin Lodging Co. REIT           143,200        1,951
   Entertainment Properties
    Trust REIT                       110,400        1,904
   Associated Estates Realty
    Corp. REIT                       177,400        1,863
   LaSalle Hotel Properties REIT     117,000        1,748
   Lexington Corporate Properties
    Trust REIT                       145,500        1,682
   Western Investment Real Estate
    Trust REIT                       150,300        1,681
   Tanger Factory Outlet Centers,
    Inc. REIT                         64,300        1,624
   Crown American Realty
    Trust REIT                       218,900        1,573
   First Washington Realty Trust,
    Inc. REIT                         68,800        1,570
   Saul Centers, Inc. REIT           102,100        1,569
   Lexford Residential Trust REIT     72,600        1,343
   Golf Trust of America, Inc. REIT   60,000        1,343
   Winston Hotels, Inc. REIT         143,075        1,341
   Mid Atlantic Realty Trust REIT    119,300        1,238
   Jameson Inns, Inc. REIT           114,500        1,109
   Kranzco Realty Trust REIT          82,700        1,075
   Corporate Office Properties
    Trust, Inc. REIT                 120,400        1,008
   Captec Net Lease Realty, Inc.
    REIT                              76,600          972
   Phillips International Realty
    Corp. REIT                        57,000          958
   Ramco-Gershenson Properties
    Trust REIT                        57,500          913
   Correctional Properties Trust REIT 54,400          867
   Grove Property Trust REIT          63,000          866
   Equity One, Inc. REIT              79,500          815
   Investors Real Estate Trust REIT  109,200          805
- -  Reckson Service Industries,
    Inc. REIT                         26,196          431
   Wyndham International, Inc.
    Class A REIT                      86,444          367
- -  Interstate Hotels Corp. REIT       52,528          217
- -  Merry Land Properties, Inc. REIT   16,985           86
- -  Horizon Group Properties,
    Inc. REIT                         22,070           77
- ----------------------------------------------------------
TOTAL REAL ESTATE INVESTMENT TRUSTS
   (COST $1,007,319)                              961,784
- ----------------------------------------------------------
CONVERTIBLE PREFERRED STOCK (0.0%)
- ----------------------------------------------------------
Prime Retail, Inc. 8.50% Series B
   Cvt. Pfd. (COST $338)              16,100          251
- ----------------------------------------------------------
<CAPTION>
                                        FACE
                                      AMOUNT
                                       (000)
- ----------------------------------------------------------
<S>                                  <C>         <C>
TEMPORARY CASH INVESTMENT (1.4%)
- ----------------------------------------------------------
REPURCHASE AGREEMENT
Collateralized by U.S. Government
   Obligations in a Pooled
   Cash Account
   5.07%, 8/2/1999
   (COST $13,925)                    $13,925       13,925
- ----------------------------------------------------------
TOTAL INVESTMENTS (99.6%)
   (COST $1,021,582)                              975,960
- ----------------------------------------------------------
OTHER ASSETS AND LIABILITIES (0.4%)
- ----------------------------------------------------------
Other Assets--Note C                                6,020
Liabilities                                        (2,023)
                                                ----------
                                                    3,997
- ----------------------------------------------------------
NET ASSETS (100%)
- ----------------------------------------------------------
Applicable to 89,125,679 outstanding $.001
   par value shares of beneficial interest
   (unlimited authorization)                     $979,957
==========================================================

NET ASSET VALUE PER SHARE                          $11.00
==========================================================
</TABLE>

*See Note A in Notes to Financial Statements.

- -Non-Income-Producing Security.

<TABLE>
<CAPTION>
- ----------------------------------------------------------
 AT JULY 31, 1999, NET ASSETS CONSISTED OF:
- ----------------------------------------------------------
                                      AMOUNT          PER
                                       (000)        SHARE
- ----------------------------------------------------------
<S>                               <C>              <C>
 Paid in Capital                  $1,076,279       $12.08
 Undistributed Net
   Investment Income                   9,119          .10
 Accumulated Net
   Realized Losses                   (59,819)        (.67)
 Unrealized Depreciation--
   Note F                            (45,622)        (.51)
- ----------------------------------------------------------
 NET ASSETS                       $  979,957       $11.00
==========================================================
</TABLE>

                                       32

<PAGE>   35

STATEMENT OF OPERATIONS

This Statement shows dividend and interest income earned by each fund during
the reporting period, and details the operating expenses charged to the fund.
These expenses directly reduce the amount of investment income available to pay
to shareholders as dividends. This Statement also shows any Net Gain (Loss)
realized on the sale of investments, and the increase or decrease in the
Unrealized Appreciation (Depreciation) on investments during the period--these
amounts include the effect of foreign currency movements on the value of a
fund's securities. Currency gains (losses) on the translation of other assets
and liabilities are shown separately.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                                           GOLD AND                            UTILITIES
                                                          ENERGY           PRECIOUS        HEALTH CARE            INCOME
                                                            FUND        METALS FUND               FUND              FUND
                                                      -------------------------------------------------------------------
                                                                        SIX MONTHS ENDED JULY 31, 1999
                                                      -------------------------------------------------------------------
                                                           (000)              (000)              (000)             (000)
- -------------------------------------------------------------------------------------------------------------------------
<S>                                                   <C>                 <C>               <C>                <C>
INVESTMENT INCOME
INCOME
    Dividends*                                         $  10,305           $  3,213          $  44,257**         $12,727
    Interest                                               1,083                214             30,934             3,967
    Security Lending                                          35                 42                315               157
                                                      -------------------------------------------------------------------
        Total Income                                      11,423              3,469             75,506            16,851
                                                      -------------------------------------------------------------------
EXPENSES
    Investment Advisory Fees--Note B                         312                352              3,340               306
    The Vanguard Group--Note C
        Management and Administrative                      1,831                814             17,678             1,657
        Marketing and Distribution                            76                 25                772                64
    Custodian Fees                                            69                 36                701                12
    Auditing Fees                                              4                  4                  7                 4
    Shareholders' Reports                                     23                 13                132                16
    Trustees' Fees and Expenses                                1                 --                  8                 1
                                                      -------------------------------------------------------------------
        Total Expenses                                     2,316              1,244             22,638             2,060
        Expenses Paid Indirectly--Note D                     (74)                --             (1,546)              (80)
                                                      -------------------------------------------------------------------
        Net Expenses                                       2,242              1,244             21,092             1,980
- -------------------------------------------------------------------------------------------------------------------------
NET INVESTMENT INCOME                                      9,181              2,225             54,414            14,871
- -------------------------------------------------------------------------------------------------------------------------
REALIZED NET GAIN (LOSS)
    Investment Securities Sold                             7,166             (6,708)           300,985**          33,827
    Foreign Currencies and Forward
        Currency Contracts                                     2                (94)            14,850                --
- -------------------------------------------------------------------------------------------------------------------------
REALIZED NET GAIN (LOSS)                                   7,168             (6,802)           315,835            33,827
- -------------------------------------------------------------------------------------------------------------------------
CHANGE IN UNREALIZED APPRECIATION
    (DEPRECIATION)
    Investment Securities                                272,097             35,528            (75,959)          (20,731)
    Foreign Currencies and Forward
        Currency Contracts                                    (1)                --            (13,315)               --
- -------------------------------------------------------------------------------------------------------------------------
CHANGE IN UNREALIZED APPRECIATION
    (DEPRECIATION)                                       272,096             35,528            (89,274)          (20,731)
- -------------------------------------------------------------------------------------------------------------------------
NET INCREASE IN NET ASSETS
    RESULTING FROM OPERATIONS                           $288,445            $30,951           $280,975           $27,967
=========================================================================================================================
</TABLE>

 *Gold and Precious Metals Fund dividends are net of foreign withholding taxes
  of $112,000.

**Dividend income and realized net loss from affiliated companies were
  $2,601,000 and $28,194,000, respectively.

                                       33

<PAGE>   36

STATEMENT OF OPERATIONS (continued)

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                                                                         REIT INDEX FUND
                                                                                          SIX MONTHS ENDED JULY 31, 1999
                                                                                                                   (000)
- -------------------------------------------------------------------------------------------------------------------------
<S>                                                                                                          <C>
INVESTMENT INCOME
INCOME
    Dividends                                                                                                    $34,390
    Interest                                                                                                         439
    Security Lending                                                                                                  21
                                                                                                             ------------
        Total Income                                                                                              34,850
                                                                                                             ------------
EXPENSES
    Investment Advisory Fees--Note B                                                                                  51
    The Vanguard Group--Note C
        Management and Administrative                                                                              1,350
        Marketing and Distribution                                                                                    97
    Custodian Fees                                                                                                     6
    Auditing Fees                                                                                                      4
    Shareholders' Reports                                                                                             24
    Trustees' Fees and Expenses                                                                                        1
                                                                                                             ------------
        Total Expenses                                                                                             1,533
        Expenses Paid Indirectly--Note D                                                                              --
                                                                                                             ------------
        Net Expenses                                                                                               1,533
- -------------------------------------------------------------------------------------------------------------------------
NET INVESTMENT INCOME                                                                                             33,317
- -------------------------------------------------------------------------------------------------------------------------
REALIZED NET GAIN (LOSS)
    Investment Securities Sold                                                                                   (20,034)
    Foreign Currencies and Forward Currency Contracts                                                                 --
- -------------------------------------------------------------------------------------------------------------------------
REALIZED NET GAIN (LOSS)                                                                                         (20,034)
- -------------------------------------------------------------------------------------------------------------------------
CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION)
    Investment Securities                                                                                         23,555
    Foreign Currencies and Forward Currency Contracts                                                                 --
- -------------------------------------------------------------------------------------------------------------------------
CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION)                                                                  23,555
- -------------------------------------------------------------------------------------------------------------------------
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS                                                             $36,838
=========================================================================================================================
</TABLE>

                                       34

<PAGE>   37

STATEMENT OF CHANGES IN NET ASSETS

This Statement shows how each fund's total net assets changed during the two
most recent report-ing periods. The Operations section summarizes information
detailed in the Statement of Operations. The amounts shown as Distributions to
shareholders from the fund's net income and capital gains may not match the
amounts shown in the Operations section, because distributions are determined
on a tax basis and may be made in a period different from the one in which the
income was earned or the gains were realized on the financial statements. The
Capital Share Transactions section shows the amount shareholders invested in
the fund, either by purchasing shares or by reinvesting distributions, as well
as the amounts redeemed. The corresponding numbers of Shares Issued and
Redeemed are shown at the end of the Statement.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                                 ENERGY                           GOLD AND PRECIOUS
                                                                  FUND                               METALS FUND
                                                   --------------------------------      --------------------------------
                                                      SIX MONTHS               YEAR         SIX MONTHS              YEAR
                                                           ENDED              ENDED              ENDED             ENDED
                                                   JUL. 31, 1999      JAN. 31, 1999      JUL. 31, 1999     JAN. 31, 1999
                                                           (000)              (000)              (000)             (000)
- -------------------------------------------------------------------------------------------------------------------------
<S>                                                <C>                <C>                <C>               <C>
INCREASE (DECREASE) IN NET ASSETS
OPERATIONS
    Net Investment Income                              $   9,181         $   14,666         $    2,225        $    4,302
    Realized Net Gain (Loss)                               7,168                470             (6,802)          (36,317)
    Change in Unrealized Appreciation
      (Depreciation)                                     272,096           (231,896)            35,528            (6,079)
                                                   ----------------------------------------------------------------------
        Net Increase (Decrease) in Net Assets
            Resulting from Operations                    288,445           (216,760)            30,951           (38,094)
                                                   ----------------------------------------------------------------------
DISTRIBUTIONS
    Net Investment Income                                   (462)           (15,275)              (467)           (4,222)
    Realized Capital Gain                                     --            (18,471)                --                --
                                                   ----------------------------------------------------------------------
        Total Distributions                                 (462)           (33,746)              (467)           (4,222)
                                                   ----------------------------------------------------------------------
CAPITAL SHARE TRANSACTIONS(1)
    Issued                                               191,041            283,737             41,366           134,740
    Issued in Lieu of Cash Distributions                     432             31,524                431             3,874
    Redeemed*                                           (129,118)          (394,911)           (54,256)         (113,797)
                                                   ----------------------------------------------------------------------
        Net Increase (Decrease) from Capital
            Share Transactions                            62,355            (79,650)           (12,459)           24,817
- -------------------------------------------------------------------------------------------------------------------------
    Total Increase (Decrease)                            350,338           (330,156)            18,025           (17,499)
- -------------------------------------------------------------------------------------------------------------------------
NET ASSETS
    Beginning of Period                                  760,329          1,090,485            309,819           327,318
                                                   ----------------------------------------------------------------------
    End of Period                                     $1,110,667        $   760,329           $327,844          $309,819
=========================================================================================================================

(1)Shares Issued (Redeemed)
    Issued                                                 9,458             13,075              5,871            19,282
    Issued in Lieu of Cash Distributions                      22              1,690                 65               568
    Redeemed                                              (6,315)           (18,532)            (7,701)          (16,479)
                                                   ----------------------------------------------------------------------
    Net Increase (Decrease) in
        Shares Outstanding                                 3,165             (3,767)            (1,765)            3,371
=========================================================================================================================
</TABLE>

*Net of redemption fees of $318,000, $654,000, $160,000, and $461,000,
 respectively.

                                       35

<PAGE>   38

<TABLE>
<CAPTION>
STATEMENT OF CHANGES IN NET ASSETS (continued)
- -------------------------------------------------------------------------------------------------------------------------
                                                                  HEALTH CARE                        UTILITIES INCOME
                                                                     FUND                                 FUND
                                                   --------------------------------      --------------------------------
                                                      SIX MONTHS               YEAR         SIX MONTHS              YEAR
                                                           ENDED              ENDED              ENDED             ENDED
                                                   JUL. 31, 1999      JAN. 31, 1999      JUL. 31, 1999     JAN. 31, 1999
                                                           (000)              (000)              (000)             (000)
- -------------------------------------------------------------------------------------------------------------------------
<S>                                                <C>                <C>                <C>               <C>
INCREASE (DECREASE) IN NET ASSETS
OPERATIONS
    Net Investment Income                              $  54,414         $   78,548          $  14,871         $  27,934
    Realized Net Gain (Loss)                             315,835            417,148             33,827            65,412
    Change in Unrealized Appreciation
      (Depreciation)                                     (89,274)         1,684,504            (20,731)           52,370
                                                   ----------------------------------------------------------------------
        Net Increase (Decrease) in Net Assets
            Resulting from Operations                    280,975          2,180,200             27,967           145,716
                                                   ----------------------------------------------------------------------
DISTRIBUTIONS
    Net Investment Income                                 (9,642)           (74,779)           (15,578)          (29,408)
    Realized Capital Gain                               (253,776)          (253,199)           (19,438)          (53,436)
                                                   ----------------------------------------------------------------------
        Total Distributions                             (263,418)          (327,978)           (35,016)          (82,844)
                                                   ----------------------------------------------------------------------
CAPITAL SHARE TRANSACTIONS(1)
    Issued                                             1,083,929          3,680,601            128,671           268,167
    Issued in Lieu of Cash Distributions                 251,258            311,662             30,014            70,652
    Redeemed*                                           (644,812)          (679,962)          (117,062)         (148,945)
                                                   ----------------------------------------------------------------------
        Net Increase (Decrease) from Capital
            Share Transactions                           690,375          3,312,301             41,623           189,874
- -------------------------------------------------------------------------------------------------------------------------
    Total Increase (Decrease)                            707,932          5,164,523             34,574           252,746
- -------------------------------------------------------------------------------------------------------------------------
NET ASSETS

    Beginning of Period                                9,884,342          4,719,819            951,683           698,937
                                                   ----------------------------------------------------------------------
    End of Period                                    $10,592,274         $9,884,342           $986,257          $951,683
=========================================================================================================================

(1)Shares Issued (Redeemed)
    Issued                                                11,222             42,315              7,985            16,838
    Issued in Lieu of Cash Distributions                   2,618              3,515              1,912             4,463
    Redeemed                                              (6,644)            (8,032)            (7,267)           (9,519)
                                                   ----------------------------------------------------------------------
        Net Increase (Decrease) in
            Shares Outstanding                             7,196             37,798              2,630            11,782
=========================================================================================================================
</TABLE>

*Health Care Fund amounts are net of redemption fees of $266,000 and $418,000,
 respectively.

                                       36
<PAGE>   39

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                                                                     REIT INDEX
                                                                                                        FUND
- -------------------------------------------------------------------------------------------------------------------------
                                                                                          SIX MONTHS                YEAR
                                                                                               ENDED               ENDED
                                                                                       JUL. 31, 1999       JAN. 31, 1999
                                                                                               (000)               (000)
- -------------------------------------------------------------------------------------------------------------------------
<S>                                                                                    <C>                 <C>
INCREASE (DECREASE) IN NET ASSETS
OPERATIONS
    Net Investment Income                                                                  $  33,317        $     57,718
    Realized Net Gain (Loss)                                                                 (20,034)            (39,785)
    Change in Unrealized Appreciation (Depreciation)                                          23,555            (236,893)
                                                                                       ----------------------------------
        Net Increase (Decrease) in Net Assets Resulting from Operations                       36,838            (218,960)
                                                                                       ----------------------------------
DISTRIBUTIONS
    Net Investment Income                                                                    (23,865)            (57,832)
    Realized Capital Gain                                                                         --                  --
    Return of Capital                                                                             --             (12,496)
                                                                                       ----------------------------------
        Total Distributions                                                                  (23,865)            (70,328)
                                                                                       ----------------------------------
CAPITAL SHARE TRANSACTIONS(1)
    Issued                                                                                   177,364             374,461
    Issued in Lieu of Cash Distributions                                                      21,176              63,043
    Redeemed*                                                                               (135,828)           (560,676)
                                                                                       ----------------------------------
        Net Increase (Decrease) from Capital Share Transactions                               62,712            (123,172)
- -------------------------------------------------------------------------------------------------------------------------
    Total Increase (Decrease)                                                                 75,685            (412,460)
- -------------------------------------------------------------------------------------------------------------------------
NET ASSETS

    Beginning of Period                                                                      904,272           1,316,732
                                                                                       ----------------------------------
    End of Period                                                                           $979,957         $   904,272
=========================================================================================================================

(1)Shares Issued (Redeemed)
    Issued                                                                                    15,938              29,719
    Issued in Lieu of Cash Distributions                                                       1,960               5,251
    Redeemed                                                                                 (12,456)            (45,501)
                                                                                       ----------------------------------
        Net Increase (Decrease) in Shares Outstanding                                          5,442             (10,531)
=========================================================================================================================
</TABLE>

*Net of redemption fees of $203,000 and $1,252,000, respectively.

                                       37
<PAGE>   40

FINANCIAL HIGHLIGHTS

This table summarizes each fund's investment results and distributions to
shareholders on a per-share basis. It also presents the fund's Total Return and
shows net investment income and expenses as percentages of average net assets.
These data will help you assess: the variability of the fund's net income and
total returns from year to year; the relative contributions of net income and
capital gains to the fund's total return; how much it costs to operate the
fund; and the extent to which the fund tends to distribute capital gains. The
table also shows the Portfolio Turnover Rate, a measure of trading activity. A
turnover rate of 100% means that the average security is held in the fund for
one year.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                                                      ENERGY FUND
                                                                                YEAR ENDED JANUARY 31,
FOR A SHARE OUTSTANDING                  SIX MONTHS ENDED     -----------------------------------------------------------
THROUGHOUT EACH PERIOD                      JULY 31, 1999       1999         1998         1997         1996         1995
- -------------------------------------------------------------------------------------------------------------------------
<S>                                             <C>          <C>          <C>          <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD              $17.16      $22.68       $23.44       $17.19       $13.82       $15.77
- -------------------------------------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS

    Net Investment Income                          .20         .33          .32          .25          .27          .23
    Net Realized and Unrealized Gain (Loss)
        on Investments                            6.05       (5.08)         .57         6.64         3.68        (1.65)
                                                -------------------------------------------------------------------------
        Total from Investment Operations          6.25       (4.75)         .89         6.89         3.95        (1.42)
                                                -------------------------------------------------------------------------
DISTRIBUTIONS
    Dividends from Net Investment Income          (.01)       (.35)        (.32)        (.24)        (.28)        (.24)
    Distributions from Realized Capital Gains       --        (.42)       (1.33)        (.40)        (.30)        (.29)
                                                -------------------------------------------------------------------------
        Total Distributions                       (.01)       (.77)       (1.65)        (.64)        (.58)        (.53)
- -------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD                  $23.40      $17.16       $22.68       $23.44       $17.19       $13.82
=========================================================================================================================

TOTAL RETURN*                                   36.43%     -21.20%        3.80%       40.32%       28.68%       -9.15%
=========================================================================================================================

RATIOS/SUPPLEMENTAL DATA
    Net Assets, End of Period (Millions)        $1,111        $760       $1,090         $989         $505         $433
    Ratio of Total Expenses to
        Average Net Assets                     0.48%**       0.41%        0.38%        0.39%        0.51%        0.30%
    Ratio of Net Investment Income to
        Average Net Assets                     1.90%**       1.46%        1.36%        1.36%        1.55%        1.66%
    Portfolio Turnover Rate                       8%**         22%          19%          15%          21%          13%
=========================================================================================================================
</TABLE>

 *Total return figures do not reflect the 1% fee assessed on redemptions of
  shares held for less than one year.

**Annualized.

                                       38
<PAGE>   41

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                                             GOLD AND PRECIOUS METALS FUND
                                                                                YEAR ENDED JANUARY 31,
FOR A SHARE OUTSTANDING               SIX MONTHS ENDED       ------------------------------------------------------------
THROUGHOUT EACH PERIOD                   JULY 31, 1999        1999         1998         1997         1996         1995
- -------------------------------------------------------------------------------------------------------------------------
<S>                                            <C>         <C>         <C>          <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD             $6.61       $7.53       $10.94       $14.07       $10.71       $13.58
- -------------------------------------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS
    Net Investment Income                          .05         .10          .14          .13          .17          .27
    Net Realized and Unrealized Gain (Loss)
        on Investments                             .62        (.93)       (3.42)       (2.98)        3.36        (2.83)
                                                -----------------------------------------------------------------------
        Total from Investment Operations           .67        (.83)       (3.28)       (2.85)        3.53        (2.56)
                                                -----------------------------------------------------------------------
DISTRIBUTIONS
    Dividends from Net Investment Income          (.01)       (.09)        (.13)        (.21)        (.17)        (.31)
    Distributions from Realized Capital Gains       --          --           --         (.07)          --           --
                                                -----------------------------------------------------------------------
        Total Distributions                       (.01)       (.09)        (.13)        (.28)        (.17)        (.31)
- -----------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD                   $7.27       $6.61      $  7.53       $10.94       $14.07       $10.71
=======================================================================================================================

TOTAL RETURN*                                   10.15%     -11.06%      -29.85%      -20.51%       33.24%      -19.20%
=======================================================================================================================

RATIOS/SUPPLEMENTAL DATA
    Net Assets, End of Period (Millions)          $328        $310         $327         $463         $648         $531
    Ratio of Total Expenses to
        Average Net Assets                     0.78%**       0.77%        0.62%        0.50%        0.60%        0.25%
    Ratio of Net Investment Income to
        Average Net Assets                     1.40%**       1.33%        1.41%        1.07%        1.38%        2.04%
    Portfolio Turnover Rate                      26%**         23%          26%          19%           5%           4%
=======================================================================================================================
</TABLE>

 *Total return figures do not reflect the 1% fee assessed on redemptions of
  shares held for less than one year.

**Annualized.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                                                   HEALTH CARE FUND
                                                                                YEAR ENDED JANUARY 31,
FOR A SHARE OUTSTANDING                 SIX MONTHS ENDED     ------------------------------------------------------------
THROUGHOUT EACH PERIOD                     JULY 31, 1999        1999         1998         1997         1996         1995
- -------------------------------------------------------------------------------------------------------------------------
<S>                                              <C>         <C>          <C>          <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD              $97.32      $74.02       $60.65       $52.09       $37.01       $36.51
- -------------------------------------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS
    Net Investment Income                            .50         .86          .80          .71          .61          .55
    Net Realized and Unrealized Gain (Loss)
        on Investments                              2.03       26.36        15.49         9.88        16.06         2.83
                                                 ------------------------------------------------------------------------
        Total from Investment Operations            2.53       27.22        16.29        10.59        16.67         3.38
                                                 ------------------------------------------------------------------------
DISTRIBUTIONS
    Dividends from Net Investment Income            (.09)       (.84)        (.78)        (.74)        (.57)        (.57)
    Distributions from Realized Capital Gains      (2.37)      (3.08)       (2.14)       (1.29)       (1.02)       (2.31)
                                                 ------------------------------------------------------------------------
        Total Distributions                        (2.46)      (3.92)       (2.92)       (2.03)       (1.59)       (2.88)
- -------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD                    $97.39      $97.32       $74.02       $60.65       $52.09       $37.01
=========================================================================================================================

TOTAL RETURN*                                      2.64%      37.39%       27.37%       20.65%       45.47%        9.79%
=========================================================================================================================

RATIOS/SUPPLEMENTAL DATA
    Net Assets, End of Period (Millions)         $10,592      $9,884       $4,720       $2,846       $1,654         $771
    Ratio of Total Expenses to
        Average Net Assets                       0.43%**       0.36%        0.40%        0.38%        0.46%        0.40%
    Ratio of Net Investment Income to
        Average Net Assets                       1.04%**       1.13%        1.28%        1.41%        1.57%        1.58%
    Portfolio Turnover Rate                        18%**         11%          10%           7%          13%          25%
=========================================================================================================================
</TABLE>

 *Total return figures do not reflect the 1% fee assessed on redemptions of
  shares held for less than five years (or less than one year in the case of
  shares purchased prior to April 19, 1999).

**Annualized.

                                       39

<PAGE>   42

FINANCIAL HIGHLIGHTS (continued)

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                                                UTILITIES INCOME FUND
                                                                                YEAR ENDED JANUARY 31,
FOR A SHARE OUTSTANDING                 SIX MONTHS ENDED     ------------------------------------------------------------
THROUGHOUT EACH PERIOD                     JULY 31, 1999        1999         1998         1997         1996         1995
- -------------------------------------------------------------------------------------------------------------------------
<S>                                              <C>         <C>          <C>          <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD              $16.27      $14.97      $12.93        $12.84       $10.42       $11.67
- -------------------------------------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS
    Net Investment Income                            .25         .55          .58          .58          .56          .56
    Net Realized and Unrealized Gain (Loss)
        on Investments                               .21        2.35         2.32          .09         2.42        (1.10)
                                                 ------------------------------------------------------------------------
        Total from Investment Operations             .46        2.90         2.90          .67         2.98         (.54)
                                                 ------------------------------------------------------------------------
DISTRIBUTIONS
    Dividends from Net Investment Income            (.26)       (.59)        (.60)        (.56)        (.56)        (.59)
    Distributions from Realized Capital Gains       (.33)      (1.01)        (.26)        (.02)          --         (.12)
                                                 ------------------------------------------------------------------------
        Total Distributions                         (.59)      (1.60)        (.86)        (.58)        (.56)        (.71)
- -------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD                    $16.14      $16.27      $14.97        $12.93       $12.84       $10.42
=========================================================================================================================

TOTAL RETURN                                       2.95%      19.92%       23.17%        5.51%       29.47%       -4.47%
=========================================================================================================================

RATIOS/SUPPLEMENTAL DATA
    Net Assets, End of Period (Millions)            $986       $952          $699         $644         $781         $593
    Ratio of Total Expenses to
        Average Net Assets                        0.43%*      0.38%         0.44%        0.40%        0.44%        0.50%
    Ratio of Net Investment Income to
        Average Net Assets                        3.07%*      3.51%         4.30%        4.63%        4.88%        5.43%
    Portfolio Turnover Rate                         44%*        55%           41%          38%          35%          35%
=========================================================================================================================
</TABLE>

*Annualized.

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                              REIT INDEX FUND
                                                                                 YEAR ENDED JANUARY 31,   MAY 13, 1996,* TO
FOR A SHARE OUTSTANDING                                     SIX MONTHS ENDED    --------------------------------------------
THROUGHOUT EACH PERIOD                                         JULY 31, 1999         1999      1998           JAN. 31, 1997
- ----------------------------------------------------------------------------------------------------------------------------
<S>                                                                  <C>          <C>       <C>                     <C>
NET ASSET VALUE, BEGINNING OF PERIOD                                  $10.81       $13.98    $12.64                  $10.00
- ----------------------------------------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS

    Net Investment Income                                                .38         .666      .590                    .341
    Net Realized and Unrealized Gain (Loss)
        on Investments                                                   .09       (3.026)    1.520                   2.659
                                                                     -------------------------------------------------------
        Total from Investment Operations                                 .47       (2.360)    2.110                   3.000
                                                                     -------------------------------------------------------
DISTRIBUTIONS
    Dividends from Net Investment Income                                (.28)       (.666)    (.590)                  (.341)
    Distributions from Realized Capital Gains                             --           --     (.086)                  (.005)
    Return of Capital                                                     --        (.144)    (.094)                  (.014)
                                                                     -------------------------------------------------------
        Total Distributions                                             (.28)       (.810)    (.770)                  (.360)
- ----------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD                                        $11.00       $10.81    $13.98                  $12.64
============================================================================================================================

TOTAL RETURN**                                                         4.42%      -17.31%    17.08%                  30.33%
============================================================================================================================

RATIOS/SUPPLEMENTAL DATA

    Net Assets, End of Period (Millions)                                $980         $904    $1,317                    $655
    Ratio of Total Expenses to
        Average Net Assets                                            0.32%+        0.26%     0.24%                  0.36%+
    Ratio of Net Investment Income to
        Average Net Assets                                            7.04%+        5.19%     4.66%                  5.55%+
    Portfolio Turnover Rate                                             11%+          29%        2%                      0%
============================================================================================================================
</TABLE>

 *Inception.

**Total return figures do not reflect the 1% fee assessed on redemptions of
  shares held for less than one year.

 +Annualized.

                                       40
<PAGE>   43

NOTES TO FINANCIAL STATEMENTS

Vanguard Specialized Funds comprise the Energy, Gold and Precious Metals,
Health Care, Utilities Income, and REIT Index Funds, each of which is
registered under the Investment Company Act of 1940 as a diversified open-end
investment company, or mutual fund. The Energy, Gold and Precious Metals,
Health Care, and Utilities Income Funds may invest in securities of foreign
issuers, which may subject them to investment risks not normally associated
with investing in securities of United States corporations. Certain investments
of the Utilities Income Fund are in debt instruments for which the issuers'
abilities to meet their obligations may be affected by economic developments in
the utilities industry.

A. The following significant accounting policies conform to generally accepted
accounting principles for mutual funds. The funds consistently follow such
policies in preparing their financial statements.

       1. SECURITY VALUATION: Equity securities are valued at the latest quoted
sales prices as of the close of trading on the New York Stock Exchange
(generally 4:00 p.m. Eastern time) on the valuation date; such securities not
traded on the valuation date are valued at the mean of the latest quoted bid
and asked prices. Prices are taken from the primary market in which each
security trades. Precious metals are valued at the mean of the latest quoted
bid and asked prices. Bonds, and temporary cash investments acquired over 60
days to maturity, are valued using the latest bid prices or using valuations
based on a matrix system (which considers such factors as security prices,
yields, maturities, and ratings), both as furnished by independent pricing
services. Other temporary cash investments are valued at amortized cost, which
approximates market value. Securities for which market quotations are not
readily available are valued by methods deemed by the Board of Trustees to
represent fair value.

       2. FOREIGN CURRENCY: Securities and other assets and liabilities
denominated in foreign currencies are translated into U.S. dollars at the
exchange rates on the valuation date as employed by Morgan Stanley Capital
International in the calculation of its indexes.

       Realized gains (losses) and unrealized appreciation (depreciation) on
investment securities include the effects of changes in exchange rates since
the securities were purchased, combined with the effects of changes in security
prices. Fluctuations in the value of other assets and liabilities resulting
from changes in exchange rates are recorded as unrealized foreign currency
gains (losses) until the asset or liability is settled in cash, when they are
recorded as realized foreign currency gains (losses).

       3. FORWARD CURRENCY CONTRACTS: The Health Care Fund enters into forward
currency contracts to protect the value of securities and related receivables
and payables against changes in future foreign exchange rates. The fund's risks
in using these contracts include movement in the values of the foreign
currencies relative to the U.S. dollar and the ability of the counterparties to
fulfill their obligations under the contracts.

       Forward currency contracts are valued at their quoted daily settlement
prices. The aggregate principal amounts of the contracts are not recorded in
the financial statements. Fluctuations in the value of the contracts are
recorded in the Statement of Net Assets as an asset (liability) and in the
Statement of Operations as unrealized appreciation (depreciation) until the
contracts are closed, when they are recorded as realized forward currency
contract gains (losses).

       4. REPURCHASE AGREEMENTS: The funds, along with other members of The
Vanguard Group, transfer uninvested cash balances to a Pooled Cash Account,
which is invested in repurchase agreements secured by U.S. government
securities. Securities pledged as collateral for repurchase agreements are held
by a custodian bank until the agreements mature. Each agreement requires that
the market value of the collateral be sufficient to cover payments of interest
and principal; however, in the event of default or bankruptcy by the other
party to the agreement, retention of the collateral may be subject to legal
proceedings.

       5. DISTRIBUTIONS: Distributions to shareholders are recorded on the
ex-dividend date. Distributions are determined on a tax basis and may differ
from net investment income and realized capital gains for financial reporting
purposes.

                                       41
<PAGE>   44

NOTES TO FINANCIAL STATEMENTS (continued)

       6. OTHER: Dividend income is recorded on the ex-dividend date. The REIT
Index Fund's dividend income includes some payments that represent a return of
capital from its REIT investments. The amount of such return of capital is only
determined by each REIT after its fiscal year ends. No estimate of return of
capital distributions has been recorded in the financial statements. Security
transactions are accounted for on the date securities are bought or sold. Costs
used to determine realized gains (losses) on the sale of investment securities
are those of the specific securities sold. Premiums and discounts on debt
securities purchased are amortized and accreted, respectively, to interest
income over the lives of the respective securities. Fees assessed on
redemptions of capital shares are credited to paid in capital.

B. Wellington Management Company, LLP, provides investment advisory services to
the Energy, Health Care, and Utilities Income Funds for fees calculated at an
annual percentage rate of average net assets. For the six months ended July 31,
1999, the investment advisory fees of the Energy, Health Care, and Utilities
Income Funds represented an effective annual rate of 0.06% of each fund's
average net assets.

       M&G Investment Management Ltd. provides investment advisory services to
the Gold and Precious Metals Fund for a fee calculated at an annual percentage
rate of average net assets. For the six months ended July 31, 1999, the
investment advisory fee represented an effective annual rate of 0.22% of the
fund's average net assets.

       The Vanguard Group furnishes investment advisory services to the REIT
Index Fund on an at-cost basis.

C. The Vanguard Group furnishes at cost corporate management, administrative,
marketing, and distribution services. The costs of such services are allocated
to each fund under methods approved by the Board of Trustees. Each fund has
committed to provide up to 0.40% of its net assets in capital contributions to
Vanguard. At July 31, 1999, the funds had contributed capital to Vanguard
(included in Other Assets) of:

<TABLE>
<CAPTION>
            ------------------------------------------------------------------------------------------------
                                             CAPITAL CONTRIBUTION        PERCENTAGE           PERCENTAGE OF
                                                  TO VANGUARD              OF FUND             VANGUARD'S
            SPECIALIZED FUND                         (000)               NET ASSETS          CAPITALIZATION
            ------------------------------------------------------------------------------------------------
            <S>                              <C>                         <C>                 <C>
            Energy                                 $   230                 0.02%                  0.2%
            Gold and Precious Metals                    70                 0.02                   0.1
            Health Care                              2,320                 0.02                   2.3
            Utilities Income                           210                 0.02                   0.2
            REIT Index                                 210                 0.02                   0.2
            ------------------------------------------------------------------------------------------------
</TABLE>

The funds' Trustees and officers are also Directors and officers of Vanguard.

D. Vanguard has asked the funds' investment advisers to direct certain
portfolio trades, subject to obtaining the best price and execution, to brokers
who have agreed to rebate to the funds part of the commissions generated. Such
rebates are used solely to reduce the funds' management and administrative
expenses. The funds' custodian banks have also agreed to reduce their fees when

                                       42
<PAGE>   45

the funds maintain cash on deposit in their non-interest-bearing custody
accounts. For the six months ended July 31, 1999, these arrangements reduced
expenses by:

<TABLE>
<CAPTION>
            -----------------------------------------------------------------------------------------------
                                                               EXPENSE
                                                              REDUCTION                      TOTAL EXPENSE
                                                                (000)                         REDUCTION AS
                                               -------------------------------------          A PERCENTAGE
                                                MANAGEMENT AND            CUSTODIAN            OF AVERAGE
            SPECIALIZED FUND                    ADMINISTRATIVE              FEES               NET ASSETS
            -----------------------------------------------------------------------------------------------
            <S>                                 <C>                       <C>                  <C>
            Energy                                $     72                   $2                  0.02%*
            Health Care                              1,542                    4                  0.03*
            Utilities Income                            80                   --                  0.02*
            -----------------------------------------------------------------------------------------------
</TABLE>

            *Annualized.

E. During the six months ended July 31, 1999, purchases and sales of investment
securities other than temporary cash investments were:

<TABLE>
<CAPTION>
            ---------------------------------------------------------------------------------------------
                                                                                      (000)
                                                                        ---------------------------------
            SPECIALIZED FUND                                              PURCHASES               SALES
            ---------------------------------------------------------------------------------------------
            <S>                                                         <C>                    <C>
            Energy                                                      $   111,260            $  35,115
            Gold and Precious Metals                                         40,457               50,236
            Health Care                                                   1,645,732              838,279
            Utilities Income                                                244,736              206,580
            REIT Index                                                      119,673               49,197
            ---------------------------------------------------------------------------------------------
</TABLE>

F. At July 31, 1999, net unrealized appreciation (depreciation) of investment
securities for federal income tax purposes was:

<TABLE>
<CAPTION>
            ------------------------------------------------------------------------------------------------
                                                                           (000)
                                                  ----------------------------------------------------------
                                                                                             NET UNREALIZED
                                                  APPRECIATED            DEPRECIATED          APPRECIATION
            SPECIALIZED FUND                      SECURITIES             SECURITIES          (DEPRECIATION)
            ------------------------------------------------------------------------------------------------
            <S>                                   <C>                   <C>                   <C>
            Energy                                $   289,229           $  (30,015)           $   259,214
            Gold and Precious Metals*                  57,962             (126,472)               (68,510)
            Health Care                             3,418,459             (289,482)             3,128,977
            Utilities Income                          204,274               (9,990)               194,284
            REIT Index                                 46,494              (92,116)               (45,622)
            ------------------------------------------------------------------------------------------------
</TABLE>

            *See Note G.

       At July 31, 1999, the Health Care Fund had open forward currency
contracts to deliver foreign currency in exchange for U.S. dollars as follows:

<TABLE>
<CAPTION>
            ---------------------------------------------------------------------------------------------------
                                                                               (000)
                                                     ----------------------------------------------------------
                                                         CONTRACT AMOUNT
                                                     ----------------------
                                                      FOREIGN       U.S.      MARKET VALUE IN      UNREALIZED
            CONTRACT SETTLEMENT DATE                  CURRENCY     DOLLARS     U.S. DOLLARS       DEPRECIATION
            ---------------------------------------------------------------------------------------------------
            <S>                            <C>      <C>          <C>            <C>                <C>
            Deliver:
             10/15/1999                    JPY       17,832,450    $149,924      $157,047           $(7,123)
            ---------------------------------------------------------------------------------------------------
</TABLE>

            JPY--Japanese yen.

                                       43
<PAGE>   46

NOTES TO FINANCIAL STATEMENTS (continued)

Net unrealized appreciation on open futures contracts is required to be treated
as realized gain for tax purposes.

       At July 31, 1999, the Energy and Health Care Funds had net unrealized
foreign currency gains (losses) resulting from the translation of other assets
and liabilities of $(1,000) and $4,000, respectively.

G. Distributions are determined on a tax basis and may differ from net
investment income and realized capital gains for financial reporting purposes.
During the six months ended July 31, 1999, the funds realized net foreign
currency gains (losses) that increased (decreased) distributable net income for
tax purposes; accordingly such gains (losses) have been reclassified from
accumulated net realized gains (losses) to undistributed net investment income
as follows:

<TABLE>
<CAPTION>
            --------------------------------------------------------------------------------------------------
                                                                                           (000)
                                                                           -----------------------------------
                                                                            INCREASE (DECREASE) UNDISTRIBUTED
            SPECIALIZED FUND                                                       NET INVESTMENT INCOME
            --------------------------------------------------------------------------------------------------
            <S>                                                             <C>
            Energy                                                                        $   2
            Gold and Precious Metals                                                        (94)
            Health Care                                                                      73
            --------------------------------------------------------------------------------------------------
</TABLE>

       At January 31, 1999, the Gold and Precious Metals Fund had available
realized losses of $90,606,000 to offset future net capital gains of $2,873,000
through January 31, 2005, $19,472,000 through January 31, 2006, $67,666,000
through January 31, 2007, and $595,000 through January 31, 2008. Certain of the
fund's investments are in securities considered to be "passive foreign
investment companies," for which any unrealized appreciation and/or realized
gains are required to be included in distributable net income for tax purposes.
During the six months ended July 31, 1999, the Gold and Precious Metals Fund
realized gains on the sale of passive foreign investment companies of
$3,125,000, which were included in prior years' distributable net income for
tax purposes; accordingly, such gains have been reclassified from accumulated
net realized losses to undistributed net investment income. The cumulative
total of distributions related to passive foreign investment company holdings
at July 31, 1999, was $95,000, and is reflected in the balance of undistributed
net investment income.

       At January 31, 1999, the REIT Index Fund had available realized losses
of $19,865,000 to offset future net capital gains of $7,983,000 through January
31, 2007, and $31,802,000 through January 31, 2008.

H. The market value of securities on loan to broker/dealers at July 31, 1999,
and collateral received with respect to such loans were:

<TABLE>
<CAPTION>
            ----------------------------------------------------------------------------------------------
                                                                                       (000)
                                                                       -----------------------------------
                                                                        MARKET VALUE              CASH
                                                                          OF LOANED            COLLATERAL
            SPECIALIZED FUND                                             SECURITIES             RECEIVED
            ----------------------------------------------------------------------------------------------
            <S>                                                         <C>                    <C>
            Energy                                                      $     789              $     806
            Gold and Precious Metals                                        2,071                  2,283
            Health Care                                                    26,044                 30,822
            Utilities Income                                               14,464                 14,923
            ----------------------------------------------------------------------------------------------
</TABLE>

Cash collateral received is invested in repurchase agreements.

                                       44
<PAGE>   47

                             TRUSTEES AND OFFICERS

JOHN C. BOGLE
Founder, Senior Chairman of the Board, and Director/Trustee of The Vanguard
Group, Inc., and each of the investment companies in The Vanguard Group.

JOHN J. BRENNAN
Chairman of the Board, Chief Executive Officer, and Director/Trustee of The
Vanguard Group, Inc., and each of the investment companies in The Vanguard
Group.

JoANN HEFFERNAN HEISEN
Vice President, Chief Information Officer, and a member of the Executive
Committee of Johnson & Johnson; Director of Johnson & JohnsonoMerck Consumer
Pharmaceuticals Co., The Medical Center at Princeton, and Women's Research and
Education Institute.

BRUCE K. MacLAURY
President Emeritus of The Brookings Institution; Director of American Express
Bank Ltd., The St. Paul Companies, Inc., and National Steel Corp.

BURTON G. MALKIEL
Chemical Bank Chairman's Professor of Economics, Princeton University; Director
of Prudential Insurance Co. of America, Banco Bilbao Gestinova, Baker Fentress
& Co., The Jeffrey Co., and Select Sector SPDR Trust.

ALFRED M. RANKIN, JR.
Chairman, President, and Chief Executive Officer of NACCO Industries, Inc.;
Director of NACCO Industries, The BFGoodrich Co., and The Standard Products Co.

JOHN C. SAWHILL
President and Chief Executive Officer of The Nature Conservancy; formerly,
Director and Senior Partner of McKinsey & Co. and President of New York
University; Director of Pacific Gas and Electric Co., Procter & Gamble Co.,
NACCO Industries, and Newfield Exploration Co.

JAMES O. WELCH, JR.
Retired Chairman of Nabisco Brands, Inc.; retired Vice Chairman and Director of
RJR Nabisco; Director of TECO Energy, Inc., and Kmart Corp.

J. LAWRENCE WILSON
Chairman and Chief Executive Officer of Rohm & Haas Co.; Director of Cummins
Engine Co. and The Mead Corp.; Trustee of Vanderbilt University.

                              OTHER FUND OFFICERS

RAYMOND J. KLAPINSKY
Secretary; Managing Director and Secretary of The Vanguard Group, Inc.;
Secretary of each of the investment companies in The Vanguard Group.

THOMAS J. HIGGINS
Treasurer; Principal of The Vanguard Group, Inc.; Treasurer of each of the
investment companies in The Vanguard Group.

                            OTHER VANGUARD OFFICERS

R. GREGORY BARTON
Managing Director, Legal Department.

ROBERT A. DiSTEFANO
Managing Director, Information Technology.

JAMES H. GATELY
MANAGING DIRECTOR, INDIVIDUAL INVESTOR GROUP.

KATHLEEN C. GUBANICH
Managing Director, Human Resources.

IAN A. MacKINNON
Managing Director, Fixed Income Group.

F. WILLIAM McNABB, III
Managing Director, Institutional Investor Group.

MICHAEL S. MILLER
Managing Director, Planning and Development.

RALPH K. PACKARD
Managing Director and Chief Financial Officer.

GEORGE U. SAUTER
Managing Director, Core Management Group.

  "Standard & Poor's(R)," "S&P(R)," "S&P 500(R)," "Standard & Poor's 500," and
"500" are trademarks of The McGraw-Hill Companies, Inc. Frank Russell Company is
    the owner of trademarks and copyrights relating to the Russell Indexes.
   "Wilshire 4500" and "Wilshire 5000" are trademarks of Wilshire Associates.

<PAGE>   48

                                    VANGUARD
                                   MILESTONES

                                   [GRAPHIC]

                             The Vanguard Group is
                            named for HMS Vanguard,
                       Admiral Horatio Nelson's flagship
                          at the Battle of the Nile on
                          August 1, 1798. Our founder,
                         John C. Bogle, chose the name
                        after reading Nelson's inspiring
                      tribute to his fleet: "Nothing could
                          withstand the squadron . . .
                       with the judgment of the captains,
                      together with their valour, and that
                        of the officers and men of every
                 description, it was absolutely irresistible."

                                   [GRAPHIC]

                          Walter L. Morgan, founder of
                         Wellington Fund, the nation's
                          oldest balanced mutual fund
                        and forerunner of today's family
                          of some 100 Vanguard funds,
                        celebrated his 100th birthday on
                           July 23, 1998. Mr. Morgan,
                        a true investment pioneer, died
                        six weeks later on September 2.

                                   [GRAPHIC]

                                Wellington Fund,
                       The Vanguard Group's oldest fund,
                         was incorporated by Mr. Morgan
                                 70 years ago,
                             on December 28, 1928.
                            The fund was named after
                            the Duke of Wellington,
                             whose forces defeated
                           Napoleon Bonaparte at the
                          Battle of Waterloo in 1815.

[THE VANGUARD GROUP LOGO]

Post Office Box 2600
Valley Forge, Pennsylvania 19482-2600

WORLD WIDE WEB
www.vanguard.com

FUND INFORMATION
1-800-662-7447

INDIVIDUAL ACCOUNT SERVICES
1-800-662-2739

INSTITUTIONAL INVESTOR SERVICES
1-800-523-1036

This report is intended for the funds' shareholders. It may not be distributed
to prospective investors unless it is preceded or accompanied by the current
fund prospectus.

Q512-09/22/1999

(C) 1999 The Vanguard Group, Inc.

All rights reserved.

Vanguard Marketing Corporation, Distributor.


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