SCHWAB INVESTMENTS
485BPOS, 1998-11-02
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<PAGE>   1
                         File Nos. 33-37459 and 811-6200
    As filed with the Securities and Exchange Commission on November 2, 1998

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
Post-Effective Amendment No. 25                                            [X]
                                       and

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
Amendment No. 29                                                           [X]

                               SCHWAB INVESTMENTS
                               ------------------
               (Exact Name of Registrant as Specified in Charter)

             101 Montgomery Street, San Francisco, California 94104
             ------------------------------------------------------
               (Address of Principal Executive Offices) (zip code)

               Registrant's Telephone Number, including Area Code:
                                 (415) 627-7000
                                 --------------

                                William J. Klipp
             101 Montgomery Street, San Francisco, California 94104
             ------------------------------------------------------
                     (Name and Address of Agent for Service)

                          Copies of communications to:

 Martin E. Lybecker, Esq.                Frances Cole, Esq.
 Ropes & Gray                            Charles Schwab Investment
 One Franklin Square                     Management, Inc.
 1301 K Street, N.W., Suite 800 East     101 Montgomery Street
 Washington, D.C.  20005                 120K-14-109
                                         San Francisco, California 94104

It is proposed that this filing will become effective (check appropriate box):

     / / Immediately upon filing pursuant to paragraph (b)
     /X/ On November 4, 1998, pursuant to paragraph (b)
     / / 60 days after filing pursuant to paragraph (a)(i)
     / / On [date], pursuant to paragraph (a)(i)
     / / 75 days after filing pursuant to paragraph (a)(ii)
     / / On [date], pursuant to paragraph (a)(ii) of Rule 485

if appropriate, check appropriate box:
     / / This post-effective amendment designates a new effective date for a
         previously filed post-effective amendment
<PAGE>   2
                                     PART A
                               SCHWAB INVESTMENTS
                              CROSS REFERENCE SHEET
                                       FOR
                    SCHWAB SHORT-TERM BOND MARKET INDEX FUND
                       SCHWAB TOTAL BOND MARKET INDEX FUND


<TABLE>
<CAPTION>
Part A Item                                   Prospectus Caption
- -----------                                   ------------------
<S>                                           <C>
1.    Cover Page                              Cover Page

2.    Synopsis                                Key Features;
                                              Expenses

3.    Condensed Financial Information         Not applicable

4.    General Description of Registrant       Organization & Management;
                                              Investment Objective, Policies & Risks

5.    Management of the Fund                  Organization & Management

5.(a) Management's Discussion of              Not applicable
      Fund Performance

6.    Capital Stock and Other Securities      Organization & Management;
                                              Investing in Shares

7.    Purchase of Securities Being Offered    Investing in Shares

8.    Redemption or Repurchase                Investing in Shares

9.    Pending Legal Proceedings               Not applicable
</TABLE>
<PAGE>   3
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                       PAGE
                                       ----
<S>                                    <C>
KEY FEATURES.........................    2
EXPENSES.............................    3
FINANCIAL HIGHLIGHTS.................    5
PERFORMANCE..........................    7
ORGANIZATION & MANAGEMENT............    8
INVESTMENT OBJECTIVES, POLICIES &
  RISKS..............................   10
INVESTING IN SHARES..................   16
</TABLE>
    
 
The Prospectus provides concise information that you should know before
investing. Please retain it for future reference.
 
The Statement of Additional Information (SAI), dated November 4, 1998, contains
additional information and is incorporated by reference into the Prospectus. The
SAI has been filed with the Securities and Exchange Commission (SEC). The SEC
maintains a Web site (http://www.sec.gov) that contains the SAI, material
incorporated by reference and other information. The SAI is available without
charge by calling 800-435-4000 (800-345-2550 for TDD users) or writing to 101
Montgomery Street, San Francisco, California 94104.
 
LIKE ALL MUTUAL FUNDS, THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY
THE SEC OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SEC OR ANY STATE
SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                               SCHWAB SHORT-TERM
                             BOND MARKET INDEX FUND
 
                               SCHWAB TOTAL BOND
                               MARKET INDEX FUND
 
                                   PROSPECTUS
                                NOVEMBER 4, 1998
 
SCHWAB SHORT-TERM BOND MARKET INDEX FUND (Short Bond Fund) seeks current income
by tracking the performance of the Lehman Brothers Mutual Fund Short (1-5)
Government/Corporate Index, an index covering bonds with maturities between 1
and 5 years.
 
SCHWAB TOTAL BOND MARKET INDEX FUND (Total Bond Fund) seeks current income by
tracking the performance of the Lehman Brothers Aggregate Bond Index, a
broad-based index covering bonds with maturities of over 1 year.
<PAGE>   4
 
KEY FEATURES
 
MATCHING A FUND TO YOUR INVESTMENT NEEDS. Unlike actively managed funds, each
Fund seeks to track the performance of an index, which attempts to represent a
particular market, or market sector. Because each Fund will invest in a large
number and broad range of bonds, each Fund could provide a diversified bond fund
investment for your asset allocation plan. Each Fund could be an excellent
choice for a variety of investment programs, including the core component of the
bond portion of an investment portfolio tailored to your specific investment
needs.
 
GOALS. Short Bond Fund seeks current income by tracking the performance of the
Lehman Brothers Mutual Fund Short (1-5) Government/Corporate Index. This index
includes U.S. Government and other debt securities, such as corporate and
international (dollar-denominated) bonds, with maturities between 1 and 5 years.
 
Total Bond Fund seeks current income by tracking the performance of the Lehman
Brothers Aggregate Bond Index. This is a broad-based index that includes U.S.
Government and other investment-grade debt securities, such as corporate and
international (dollar-denominated) bonds, asset-backed securities and mortgage-
backed securities.
 
There is no guarantee the Funds will achieve their goals.
 
STRATEGY. Each Fund intends to achieve its goal by following an indexing
investment strategy. Each Fund intends to operate as a diversified mutual fund.
 
RISKS. While indexing strategies may reduce the risks associated with active
management, they do not ensure against interest rate risks and other risks
typically associated with investing in debt securities, such as income risk,
credit risk, and prepayment/call risks. Read the "Investment Objectives,
Policies and Risks" section for more details.
 
MANAGEMENT. Charles Schwab Investment Management, Inc. (the Investment Manager)
currently provides investment management services to the SchwabFunds(R), a
family of 35 mutual funds with over $70 billion in assets as of August 31, 1998.
 
SHAREHOLDER SERVICE. Charles Schwab & Co., Inc. (Schwab) provides professional
representatives 24 hours a day at 800-435-4000 to service your accounts. Read
the "Investing in Shares" section of the prospectus for information on "How to
Buy" and "How to Sell" shares of the Fund.
 
   
LOW COST INVESTING. The Investment Manager and Schwab have voluntarily
guaranteed that, through at least October 31, 1999, total operating expenses of
each Fund will not exceed 0.35% of each Fund's average daily net assets.
    
 
                                        2
<PAGE>   5
 
EXPENSES
 
SHAREHOLDER TRANSACTION EXPENSES are charges you may pay when you buy, sell or
exchange shares of the Funds.
 
   
<TABLE>
<S>                                          <C>
Maximum Sales Charge on Purchases and
  Reinvested Dividends                       NONE
Deferred Sales Charge on Redemptions         NONE
Redemption Fee                               NONE
Exchange Fee                                 NONE
Account Maintenance Fees                     NONE
</TABLE>
    
 
The information on shareholder transaction expenses is for transactions through
a Schwab account. If you are purchasing, selling/exchanging or maintaining
shares of a Fund through an entity other than Schwab, other transaction expenses
may be charged by that entity.
 
ANNUAL OPERATING EXPENSES are paid by the Fund. These expenses include
management fees paid to the Investment Manager and other fees for services such
as maintaining shareholder records and furnishing shareholder statements and
financial reports. These expenses are factored into the price of a Fund's shares
and into the dividends paid to shareholders. As a shareholder, you are not
charged any of these fees directly.
 
   
The following figures are based on historical expenses (adjusted to reflect
current fees) and are stated as a percentage of average daily net assets of each
Fund.
    
 
   
<TABLE>
<S>                                            <C>
SHORT BOND FUND
Management Fee (after reduction)               0.00%
12b-1 Fee                                      NONE
Other Expenses (after reduction)               0.35%
TOTAL OPERATING EXPENSES (AFTER REDUCTION)     0.35%
TOTAL BOND FUND
Management Fee (after reduction)               0.00%
12b-1 Fee                                      NONE
Other Expenses (after reduction)               0.35%
TOTAL OPERATING EXPENSES (AFTER REDUCTION)     0.35%
</TABLE>
    
 
EXAMPLE: If the Short Bond Fund and Total Bond Fund were to provide an annual
return of 5%, you would pay the following expenses on a $1,000 investment,
whether you redeem your shares at the end of each period or left your shares
invested.
 
SHORT BOND FUND
 
   
<TABLE>
<CAPTION>
1 YEAR   3 YEARS   5 YEARS   10 YEARS
- ------   -------   -------   --------
<S>      <C>       <C>       <C>
  $4       $11       $20       $44
</TABLE>
    
 
TOTAL BOND FUND
 
   
<TABLE>
<CAPTION>
1 YEAR   3 YEARS   5 YEARS   10 YEARS
- ------   -------   -------   --------
<S>      <C>       <C>       <C>
  $4       $11       $20       $44
</TABLE>
    
 
THE EXPENSE TABLES AND EXAMPLES ABOVE ARE SUPPOSED TO HELP YOU UNDERSTAND THE
COSTS OF OWNING SHARES IN THE FUNDS. ACTUAL EXPENSES MAY BE GREATER OR LESSER
THAN THOSE SHOWN.
 
                                        3
<PAGE>   6
 
   
The Investment Manager and Schwab have voluntarily agreed to guarantee, at least
through October 31, 1999, that total operating expenses (excluding interest,
taxes, brokerage commissions and extraordinary expenses) of the Short Bond Fund
and the Total Bond Fund will not exceed 0.35% of each Fund's average daily net
assets. The expense information for the Short Bond Fund and Total Bond Fund has
been restated to reflect the current fee guarantees. If extraordinary expenses
were included and these guarantees were not in effect the management fee, other
expenses and total operating expenses for the Short Bond Fund and Total Bond
Fund would have been 0.41%, 0.44% and 0.85% and 0.41%, 0.41% and 0.82%,
respectively, of each Fund's average daily net assets. Read the "Organization
and Management" section of this prospectus for more information on expenses.
    
 
                                        4
<PAGE>   7
 
   
FINANCIAL HIGHLIGHTS
    
 
The following information has been audited by PricewaterhouseCoopers LLP,
independent accountants for the Funds. Their Report is included in the Annual
Report for the Funds, which is a separate report that contains additional
financial information.
 
The report, financial highlights and financial statements are incorporated by
reference into the SAI. For free copies of the Annual Report and/or the SAI,
call 1-800-435-4000.
 
   
For a share outstanding throughout each period:
    
   
<TABLE>
<CAPTION>
                                   Income from
                              Investment Operations                Less Distributions                    Ratios/Supplemental Data
                        ---------------------------------   ---------------------------------            -------------------------
                                     Net
                                   Realized
                                      &
                                  Unrealized                             Dividends               Net
  Fiscal    Net Asset     Net       Gains                   Dividends       from                Asset
  Period      Value     Invest-    (Losses)    Total from    from Net     Realized     Total    Value      Total      Net Assets
   Ended    Beginning    ment         on       Investment   Investment    Gain on     Distri-   End of   Return(6)   End of Period
  Aug. 31   of Period   Income    Investment   Operation      Income     Investment   butions   Period      (%)         (000's)
  -------   ---------   -------   ----------   ----------   ----------   ----------   -------   ------   ---------   -------------
  <S>       <C>         <C>       <C>          <C>          <C>          <C>          <C>       <C>      <C>         <C>
                              Schwab Short-Term Bond Market Index Fund
   1998      $ 9.74      $0.56      $ 0.17       $ 0.73       $(0.57)      $--        $(0.57)   $ 9.90      7.64       $157,421
   1997      $ 9.67      $0.59      $ 0.07       $ 0.66       $(0.59)      $--        $(0.59)   $ 9.74      6.96       $127,460
   1996      $ 9.84      $0.59      $(0.17)      $ 0.42       $(0.59)      $--        $(0.59)   $ 9.67      4.39       $134,019
   1995      $ 9.81      $0.59      $ 0.03       $ 0.62       $(0.59)      $--        $(0.59)   $ 9.84      6.61       $157,191
   1994      $10.64      $0.54      $(0.71)      $(0.17)      $(0.54)      $(0.12)    $(0.66)   $ 9.81     (1.67)      $190,479
   1993(2)   $10.26      $0.37      $ 0.38       $ 0.75       $(0.37)      $--        $(0.37)   $10.64      7.39       $273,973
   1992(3)   $10.28      $0.60      $ 0.01       $ 0.61       $(0.60)      $(0.03)    $(0.63)   $10.26      6.08       $226,223
   1991(4)   $10.00      $0.10      $ 0.28       $ 0.38       $(0.10)      $--        $(0.10)   $10.28      3.79       $ 66,404
                                   Schwab Total Bond Market Index Fund
   1998      $ 9.75      $0.60      $ 0.43       $ 1.03       $(0.60)      $--        $(0.60)   $10.18     10.83       $294,020
   1997      $ 9.38      $0.65      $ 0.37       $ 1.02       $(0.65)      $--        $(0.65)   $ 9.75     11.18       $ 24,778
   1996      $ 9.80      $0.65      $(0.42)      $ 0.23       $(0.65)      $--        $(0.65)   $ 9.38      2.29       $ 22,761
   1995      $ 9.33      $0.69      $ 0.47       $ 1.16       $(0.69)      $--        $(0.69)   $ 9.80     13.03       $ 12,949
   1994      $10.53      $0.60      $(1.20)      $(0.60)      $(0.60)      $--        $(0.60)   $ 9.33     (5.80)      $  7,108
   1993(5)   $10.00      $0.31      $ 0.53       $ 0.84       $(0.31)      $--        $(0.31)   $10.53      8.63       $  2,806
 
<CAPTION>
 
                 Ratios/Supplemental Data
           ------------------------------------
 
                          Ratio of
            Ratio of        Net
            Expenses     Investment
  Fiscal       to        Income to    Portfolio
  Period     Average      Average     Turnover
   Ended   Net Assets    Net Assets     Rate
  Aug. 31      (%)          (%)          (%)
  -------  -----------   ----------   ---------
  <S>      <C>           <C>          <C>
   1998       0.46          5.58         128
   1997       0.49          6.02          71
   1996       0.49          6.03          80
   1995       0.58          6.11         203
   1994       0.60          5.28          91
   1993(2     0.60(7)       5.28(7)      107
   1992(3     0.43          5.78         185
   1991(4     0.35(7)       6.14(7)        4
   1998       0.31          5.86         285
   1997       0.20          6.74          51
   1996       0.00          6.67          66
   1995       0.00          7.38         240
   1994       0.10          6.27         123
   1993(5     0.26(7)       6.36(7)       42
</TABLE>
    
 
   
See footnotes on the following page.
    
 
                                        5
<PAGE>   8
 
   
(1) The information contained in the table on the previous page is based on
    actual expenses for the periods, after giving effect to the portion of
    expenses reduced and absorbed by the Investment Manager and Schwab. Had
    these expenses not been reduced and absorbed, the Fund's expense and net
    investment income ratios would have been:
    
 
   
<TABLE>
<CAPTION>
                        Schwab Short-Term                  Schwab Total
                           Bond Market                     Bond Market
                            Index Fund                      Index Fund
                       (without reductions)            (without reductions)
Fiscal Period        ------------------------        ------------------------
    Ended            Ratio of        Ratio of        Ratio of        Ratio of
  August 31          Expenses         Income         Expenses         Income
- -------------        --------        --------        --------        --------
<S>                  <C>             <C>             <C>             <C>
    1998               0.85%           5.19%           0.82%           5.35%
    1997               0.82%           5.69%           1.18%           5.76%
    1996               0.80%           5.72%           1.17%           5.50%
    1995               0.81%           5.88%           1.18%           6.20%
    1994               0.81%           5.07%           2.19%           4.18%
    1993               0.84%(2,7)      5.04%(2,7)     19.19%(5,7)     (12.57)%(5,7)
    1992               0.89%(3)        5.32%(3)        --              --
    1991               1.47%(4,7)      5.02%(4,7)      --              --
</TABLE>
    
 
   
(2) For the period January 1, 1993 to August 31, 1993.
    
   
(3) For the period January 1, 1992 to December 31, 1992.
    
   
(4) For the period November 5, 1991 (commencement of operations) to December 31,
1991.
    
   
(5) For the period March 5, 1993 (commencement of operations) to August 31,
    1993.
    
   
(6) Not annualized.
    
   
(7) Annualized.
    
 
                                        6
<PAGE>   9
 
PERFORMANCE
 
Typically, mutual funds report performance in terms of total return or yield.
 
   
TOTAL RETURN is the actual return of an investment assuming both the
reinvestment of any income earned and any change in share price. A cumulative
total return is the actual total return of an investment over a stated period of
time, while an average annual total return is a hypothetical rate of return,
which, if achieved annually would have produced the same cumulative total
return. An average annual total return will smooth out the actual year-to-year
fluctuations of an investment's return.
    
 
YIELD is the actual income earned on an investment over a stated period of time
and annualized (assumed to be generated over a year). For example, a thirty-day
yield measures the income earned on an investment over thirty days, annualizes
it and expresses that income as a percentage of the original investment.
 
An effective yield is calculated similarly, but income earned is assumed to be
reinvested. Because of this compounding effect, effective yields are generally
higher.
 
The Funds did not follow indexing strategies prior to November 1, 1997. As a
result, each Fund's performance should not be expected to track the performance
of its Index prior to that date.
 
Fund strategies, performance and holdings are detailed in financial reports
which are sent to shareholders twice a year. For a free copy of the most recent
financial report, call 1-800-435-4000.
 
                                        7
<PAGE>   10
 
ORGANIZATION & MANAGEMENT
 
EACH FUND IS A DIVERSIFIED MUTUAL FUND. Each Fund is a series of Schwab
Investments (the Trust).
 
THE FUNDS ARE OVERSEEN BY A BOARD OF TRUSTEES. The Board of Trustees meets
regularly to review each Fund's activities, contractual arrangements and
performance. The Board of Trustees is responsible for protecting the interests
of each Fund's shareholders.
 
THE FUNDS MAY HOLD SPECIAL MEETINGS. These meetings may be called for purposes
such as electing Trustees, changing fundamental policies and amending management
contracts. Shareholders are entitled to one vote for each share owned and may
vote by proxy or in person. Proxy materials will be mailed to shareholders prior
to any meetings, and will include a voting card and information explaining the
matters to be voted upon.
 
THE FUNDS ARE MANAGED BY THE INVESTMENT MANAGER. The Investment Manager is
responsible for managing each Fund's day-to-day business affairs, including
picking each Fund's investments; although the Investment Manager is subject to
the overall authority of the Board of Trustees.
 
Stephen B. Ward is the Trust's Senior Vice President and Chief Investment
Officer. He has overall responsibility for the management of the Funds'
portfolios. Mr. Ward joined the Investment Manager as Vice President and
Portfolio Manager in April 1991 and was promoted to his current position in
August 1993. Prior to joining the Investment Manager, Mr. Ward was Vice
President and Portfolio Manager at Federated Investors. He graduated with a
Masters of Business Administration from the Wharton School and a Bachelor of
Arts in Economics from Virginia Tech and has been a Chartered Financial Analyst
since 1985.
 
Kimon Daifotis is the Funds' portfolio manager and is responsible for the
day-to-day management. He joined the Investment Manager as Vice President and
Senior Portfolio Manager in October 1997. Prior to joining the Investment
Manager, Mr. Daifotis was employed by Lehman Brothers as Vice President in fixed
income institutional sales and, prior to that, Senior Portfolio Strategist. He
graduated with a Masters in Business Administration from the University of
Chicago and a Bachelor of Arts in Economics from Claremont McKenna College.
 
For the services performed under its contract with each Fund, the Investment
Manager is entitled to receive a graduated annual fee, payable monthly from each
Fund.
 
   
For the fiscal year ended August 31, 1998, the Short Bond Fund and the Total
Bond Fund paid the Investment Manager investment management fees, after
reductions, of 0.02% and 0.00%, respectively, of each Fund's daily net assets.
    
 
SCHWAB IS THE FUNDS' SHAREHOLDER SERVICES AND TRANSFER AGENT. Schwab provides
Fund information to shareholders, including calculating share price, reporting
shareholder ownership and account activities and distributing the Fund's
                                        8
<PAGE>   11
 
prospectuses, financial reports and other informational literature about the
Funds. Schwab also maintains the office space, equipment and personnel necessary
to provide these services. Schwab also distributes and markets SchwabFunds and
services.
 
For the services performed as transfer agent under its contract with each Fund,
Schwab is entitled to receive annual fees from the Funds. The fees are payable
monthly in the amount of 0.05% of each Fund's average daily net assets. For the
services performed as shareholder services agent under its contract with the
funds, Schwab is entitled to receive annual fees from the Funds. The fees are
payable monthly in the amount of 0.20% of the average daily net assets of the
Funds.
 
THE FUNDS PAY OTHER EXPENSES. These expenses are typically connected with the
Trust's operations, and include legal, audit and custodian fees, as well as the
costs of accounting and registration of the Funds. Expenses not directly
attributable to a particular Fund will be allocated equitably among the Funds in
the Trust.
 
   
For the fiscal year ended August 31, 1998, the Short Bond Fund and Total Bond
Fund, respectively, paid total operating expenses, after reductions, in the
amounts of 0.46% and 0.31% of each Fund's average daily net assets.
    
 
The Charles Schwab Corporation is the parent company of the Investment Manager
and Schwab. Charles R. Schwab is the founder, Chairman, Co-Chief Executive
Officer and Director of The Charles Schwab Corporation. As a result of his
ownership of and interests in The Charles Schwab Corporation, Mr. Schwab may be
deemed to be a controlling person of the Investment Manager and Schwab.
 
   
As of October 14, 1998, the Schwab MarketTrack Balanced Portfolio and Schwab
MarketTrack Conservative Portfolio, respectively, owned approximately 46% and
32% of the Total Bond Fund's outstanding shares.
    
 
                                        9
<PAGE>   12
 
INVESTMENT OBJECTIVES, POLICIES & RISKS
 
INVESTMENT OBJECTIVES
Each Fund's investment objective is to attempt to provide a high level of
current income consistent with preservation of capital by seeking to track the
investment results of a particular bond index through the use of an indexing
strategy.
 
Each Fund's investment objective may be changed only by vote of a majority of
its shareholders. Unless otherwise noted, policies and limitations may be
changed without shareholder approval.
 
INVESTMENT STRATEGIES
Each Fund intends to achieve its objective by following an indexing investment
strategy. Each Fund normally will invest at least 65% of its total assets in the
securities making up its Index (Index Securities).
 
   
THE INDEXES are the Lehman Brothers Mutual Fund Short (1-5) Government/
Corporate Index (the Short-Term Index) for the Short Bond Fund and the Lehman
Brothers Aggregate Bond Index (the Aggregate Bond Index) for the Total Bond
Fund. The Short-Term Index is a market-capitalization weighted index of
investment-grade debt securities with maturities between one and five years
representing 2,367 securities as of August 31, 1998. The Aggregate Bond Index is
a market-weighted index of investment-grade debt securities with maturities of
greater than one year representing 6,928 securities as of August 31, 1998. The
securities in each Index also are required to be publicly issued and have a par
amount outstanding of at least $100 million and a fixed interest rate.
    
 
The table below provides a snap-shot of what each Index looked like on August
31, 1998:
 
   
<TABLE>
<CAPTION>
                       SHORT-TERM   AGGREGATE
                         INDEX      BOND INDEX
<S>                    <C>          <C>
  U.S. Government
  securities              80%          48%
  Mortgage-Backed
  securities               0%          31%*
  Corporate Bonds         16%          16%
  International
  Corporate Bonds          4%           4%
  Asset-Backed
  securities               0%           1%
  Dollar-weighted
  average maturity
  (DWAM)               2.82 Years   8.67 Years
</TABLE>
    
 
* The Index includes only agency mortgage-backed securities.
 
THE INDEXING STRATEGY is a method of investment management that relies on an
index to determine the investments of a fund, rather than the judgment of a
portfolio manager. Of course, the portfolio manager of an index fund still uses
his/her judgment, but not in the traditional sense of investment management. By
following indexing strategies, each Fund seeks to match the investment
performance of its Index.
 
   
Each Fund will invest in a group of debt securities, consisting primarily of
Index Securities, which, when taken together, is expected to perform similarly
to its Index. This technique is expected to enable each
    
 
                                       10
<PAGE>   13
 
   
Fund to track the interest income and price movements (total return) of its
Index, while minimizing brokerage, custodial and accounting costs.
    
 
Each Fund will seek a correlation between its total return, and that of its
Index of 0.9 or better. A perfect correlation of 1.0 is unlikely as the Funds
incur operating expenses unlike the Indexes. The Investment Manager will monitor
the performance of each Fund against its index and will rebalance a Fund
periodically to reduce tracking error. In the event a correlation of 0.9 or
better is not achieved, the Board of Trustees will consider alternative
arrangements.
 
THE RISKS for each Fund are basically those risks associated with investing in
debt securities. Generally speaking, there are four types of risk attendant to
investing in debt securities.
 
INTEREST RATE RISK is the potential for fluctuations in bond prices due to
changing interest rates. A Fund's or Index's DWAM is an important factor to
consider when determining interest rate risk. This is because DWAM is a measure
of the Fund's or Index's maturity and maturity generally determines a Fund's or
Index's sensitivity to changes in interest rates.
 
INCOME RISK is the potential for a decline in income due to falling interest
rates.
 
CREDIT RISK is the possibility that a bond issuer will fail to make timely
payments of either interest or principal.
 
PREPAYMENT RISK or CALL RISK is the likelihood that, during periods of falling
interest rates, bonds will be prepaid (or "called") prior to maturity, requiring
the proceeds to be invested at a generally lower interest rate.
 
The amount of each type of risk each Fund will be subject to depends on its
portfolio of investments. Because each Fund intends to track its Index, its risk
profile is generally expected to relate to that of its Index. However, to the
extent that a Fund invests in non-Index Securities or invests in an Index
Security in greater proportion than that of its Index, the Fund may be exposed
to greater risks or a different combination of risks associated with such
investments.
 
Here is how the Investment Manager believes the risk profiles for the Funds will
compare:
 
<TABLE>
<CAPTION>
                   SHORT BOND       TOTAL BOND
   RISK TYPE          FUND             FUND
<S>              <C>              <C>
Interest Rate          Low            Medium
Income                High            Medium
Credit                 Low              Low
Prepayment/Call        Low            Medium
</TABLE>
 
OTHER RISKS
An issue with the potential to disrupt fund operations and affect performance is
the inability of some computers to recognize the year 2000.
 
   
The Investment Manager is taking steps to enable its systems to handle this
change and is seeking assurances that its service providers and business
partners are taking similar steps as well. However, it is impossible to know in
advance exactly how
    
 
                                       11
<PAGE>   14
 
this issue will affect fund administration, fund performance or securities
markets in general.
 
PRINCIPAL SECURITIES AND INVESTMENT TECHNIQUES
   
The different types of Index Securities and other securities in which the Funds
may invest are described below:
    
 
DEBT SECURITIES are obligations, issued by various entities, including
governments and corporations, in order to raise money. They are basically
"IOUs," but are commonly referred to as bonds. Bonds normally require the issuer
to pay a fixed, variable or floating rate of interest on the amount of money
borrowed (the "principal") until it is paid back (at "maturity"). Upon maturity,
the principal must be repaid.
 
Debt securities experience price changes when interest rates change. As a rule,
when interest rates rise, bond prices decline or "fall", and when interest rates
fall bond prices rise. Typically, longer-maturity bonds react to interest rate
changes more severely than shorter-term bonds (all else being equal) but
generally offer a greater rate of interest. Debt securities also are subject to
the risk that their issuer will fail to meet its obligation to pay interest
and/or principal, and their prices also may be affected by the credit quality of
their issuer. Investment-grade debt securities are medium- and high-quality
securities, although some still possess varying degrees of speculative
characteristics and risk.
 
U.S. GOVERNMENT SECURITIES are debt securities issued by the U.S. Treasury or
issued or guaranteed by the U.S. Government or any of its agencies or
instrumentalities. U.S. Treasury securities are backed by the full faith and
credit of the United States. Not all U.S. Government securities are backed by
the full faith and credit of the United States. Some U.S. Government securities
are supported by a line of credit the issuing entity has with the U.S. Treasury.
Others are supported solely by the credit of the issuing agency or
instrumentality. Of course U.S. Government securities are among the safest
securities, but they are still subject to interest rate risk.
 
MORTGAGE-BACKED SECURITIES represent an interest in an underlying pool of
mortgages. Issuers of these securities include agencies and instrumentalities of
the U.S. Government, such as the Federal Home Loan Mortgage Corporation and the
Federal National Mortgage Association, and private entities, such as banks. The
income paid on mortgage-backed securities depends upon the income received from
the underlying pool of mortgages. Mortgage-backed securities include
collateralized mortgage obligations, mortgage-backed bonds and stripped
mortgage-backed securities. These securities are subject to interest rate risk,
like other debt securities, in addition to prepayment risk.
 
CORPORATE BONDS are debt securities issued by corporations. Although a higher
return is expected from corporate bonds, these securities, while subject to the
same general risks as U.S. Government securities, are
 
                                       12
<PAGE>   15
 
subject to greater credit risk than U.S. Government securities.
 
   
INTERNATIONAL BONDS involve additional risks because they are issued by foreign
entities, including foreign governments, banks and corporations. Credit and
liquidity supports also may be provided by foreign entities. Foreign entities
may not be subject to the same regulatory and reporting requirements as domestic
entities. In addition, foreign economic, political and legal developments could
have more dramatic effects on the value of a foreign security, including
international bonds, or its payment of interest and repayment of principal.
While these factors could make international bonds more volatile, the Funds
would not be exposed to any currency risks typically associated with foreign
securities because the Funds may only invest in U.S. dollar-denominated
international bonds.
    
 
ASSET-BACKED SECURITIES are securities that are backed by the loans or account
receivables of an entity, such as a bank or credit card company. These
securities are obligations which the issuer intends to repay using the assets
backing them (once collected). Therefore, repayment may depend largely on the
cash-flows generated by the assets backing the securities. Sometimes the credit
support for these securities is limited to the underlying assets, but, in other
cases, may be provided by a third party via a letter of credit or insurance
guarantee. Asset-backed securities are subject to credit and prepayment risks.
 
   
BOND SUBSTITUTION STRATEGY is a strategy whereby each Fund may, from time to
time, substitute one type of investment-grade bond for another. This means that,
as an example, a Fund may have a higher weighting in corporate bonds and a lower
weighting in U.S. Treasury securities than its Index in order to increase
income. This particular bond substitution -- a corporate bond
substitution -- may increase the Fund's credit risk, although this may be
mitigated through increased diversification in the corporate sector of the bond
market.
    
 
CREDIT AND LIQUIDITY SUPPORTS may be employed by issuers to reduce the credit
risk of their securities. Credit supports include letters of credit, insurance
and guarantees. Liquidity supports include puts and demand features. These
arrangements move the credit risk of an investment from the issuer of the
security to the support provider.
 
   
VARIABLE AND FLOATING RATE SECURITIES pay an interest rate that is adjusted
either periodically or at specific intervals or floats continuously according to
a formula or benchmark. These securities are intended to minimize the
fluctuation in value that occur when interest rates rise and fall, however, some
of these securities may be linked to a benchmark in such a way as to cause
greater volatility in the value.
    
 
STRIPPED SECURITIES are securities whose income and principal components are
detached and sold separately from each other. While the risks associated with
stripped securities are similar to other
 
                                       13
<PAGE>   16
 
securities, stripped securities are typically subject to greater changes in
value. U.S. Treasury securities that have been stripped by a Federal Reserve
Bank are obligations of the U.S. Treasury.
 
WHEN-ISSUED SECURITIES AND DELAYED DELIVERY SECURITIES are securities that are
purchased but are to be delivered to the buyer at a later than customary date,
price and yield. Generally, the purchaser does not pay for these securities or
earn interest on them until they are delivered, but their value could change
prior to delivery.
 
ILLIQUID SECURITIES are securities which are not actively traded or are subject
to legal restrictions and, therefore, may be difficult to sell quickly or
without losses.
 
Restriction: Each Fund will not purchase illiquid securities if, as a result,
more than 15% of its net assets would be invested in illiquid securities.
 
   
HIGH-YIELD, HIGH-RISK SECURITIES are rated below investment-grade quality (below
BBB) and are sometimes referred to as "junk bonds". These securities present
greater credit risk and higher return potential, and the market for them has
historically been less liquid than for investment-grade securities.
    
 
REPURCHASE AGREEMENTS involve a Fund buying securities (usually U.S. Government
securities) from a seller and simultaneously agreeing to sell them back at an
agreed-upon price (usually higher) and time. There are risks that losses will
result if the seller does not perform as agreed.
 
FUTURES CONTRACTS AND OPTIONS may be entered into by the Funds. A futures
contract requires a Fund to buy or sell a specific dollar amount of a security
at a certain price on a specified future date. There is risk that the securities
will increase or decrease in value prior to that date and cause losses to the
Fund. An option gives a Fund the right to buy or sell a security for an
agreed-upon price during a specified period of time. There is risk of loss to a
Fund if the option is exercised, as well as the loss of the cost of the option
if it is not exercised.
 
The risk of loss as to futures contracts and options can be substantial due to
both the low margin deposits required and the degree of leverage that can be
involved. In order to minimize risks, each Fund will segregate appropriate
assets in the amount of the underlying obligation.
 
SWAP AGREEMENTS are an exchange of one security or asset for another. A swap may
be entered into in order to change the maturity of a Fund's portfolio, to
protect a Fund's value from changes in interest rates or to change sector
allocations. Swap agreements also may be entered into to help a Fund track its
Index. By entering into a swap agreement, a Fund is exposed to the risk that the
counter party will not fulfill its obligations. In order to minimize this risk,
a Fund will enter into swap agreements only with counterparties deemed
creditworthy by the Investment Manager.
 
The risk of loss in swap agreements can be substantial due to the degree of
leverage
 
                                       14
<PAGE>   17
 
that can be involved. In order to help minimize this risk, each Fund will
segregate appropriate assets, as necessary.
 
MONEY MARKET SECURITIES are high-quality, short-term securities that may be
issued by entities such as the U.S. Government, corporations and financial
institutions (like banks).
 
SECURITIES OF OTHER INVESTMENT COMPANIES may be purchased by a Fund. These
investments will cause a Fund to bear duplicative fees for certain services.
 
The Funds also employ the policies described below.
 
DIVERSIFICATION involves investing in a wide range of securities and, thereby,
spreading and reducing the risks of investment.
 
Restriction: As a fundamental policy, with respect to 75% of its assets, each
Fund may not purchase the securities of any issuer if, as a result, more than 5%
of its total assets would be invested in the securities of that issuer. This
limitation does not apply to U.S. Government securities.
 
   
BORROWING may subject the Fund to interest cost on the securities purchased with
the borrowed funds.
    
 
Restriction: Each Fund may borrow up to 33 1/3% of its total assets for
temporary or emergency purposes; provided that neither Fund will purchase
securities while borrowings represent more than 5% of its total assets.
 
LENDING securities may earn income for a Fund, but could result in losses to the
Fund, and possibly affect share price.
 
                                       15
<PAGE>   18
 
INVESTING IN SHARES
 
BUSINESS DAYS
The Funds are open each day the New York Stock Exchange (NYSE) is open (business
days).
 
NET ASSET VALUE
   
The price of the shares of each Fund is its NAV. NAV is determined each business
day after the close of the NYSE, generally 4:00 p.m. Eastern time. NAV is
calculated by adding the value of each Fund's assets, subtracting its
liabilities and dividing the result by the number of outstanding shares. Each
Fund's NAV will fluctuate and neither Fund is insured against loss in its NAV.
Each Fund values its portfolio securities based on market quotes if they are
readily available. If market quotes are not readily available, portfolio
securities are assigned fair market values pursuant to guidelines adopted by the
Board of Trustees.
    
 
MINIMUM INVESTMENTS
 
<TABLE>
<S>                                 <C>
INITIAL INVESTMENT................  $1,000
for custodial accounts and IRAs...  $  500
ADDITIONAL SHARES.................  $  100
MINIMUM BALANCE*..................  $  500
for custodial accounts and IRAs...  $  250
</TABLE>
 
* Your shares may be automatically redeemed if, as a result of selling or
  exchanging shares, you no longer meet a Fund's minimum balance requirements.
  You will be given 30 days' notice prior to redemption to increase your
  holdings to the required minimum balance.
 
These minimums may not be applicable to certain customers of Schwab
Institutional's Services for Investment Managers or Schwab's Retirement Plan
Services. These minimums may be different if you are buying, selling/exchanging
or maintaining shares of a Fund through an entity other than Schwab.
 
HOW TO BUY, SELL OR EXCHANGE SHARES
Shares may be purchased, sold or exchanged through an account at Schwab or with
any other entity designated by Schwab. The following information on how to buy,
sell and exchange shares is for transactions through an account at Schwab.
 
Shares are purchased, sold or exchanged at the NAV next determined after your
order has been received in good order. Orders received in good order by Schwab
prior to 4:00 p.m. Eastern time will be executed that day. Shares bought
normally begin to earn dividends, if any, on the next business day, while shares
sold or exchanged normally earn dividends, if any, on that day.
 
BY TELEPHONE. Call 1-800-435-4000, 24 hours a day (1-800-345-2550 for TDD
users).
 
BY MAIL. Write to the Fund at 101 Montgomery Street, San Francisco, CA 94104.
 
ELECTRONICALLY. Visit Schwab's Web site at http://www.schwab.com/schwabfunds.
For more information about StreetSmart(R), The Equalizer(R) and Telebroker(R),
call 1-800-435-4000.
 
Please provide the following information:
 
- -  your name and Schwab account number;
 
                                       16
<PAGE>   19
 
- -  the name of your Fund;
- -  the dollar amount you would like to buy, sell or exchange; and for initial
   purchases only, one of the three distribution choices below.
 
   AUTOMATIC REINVESTMENT. Dividends and capital gain distributions will be
   reinvested in shares of your Fund. If you do not choose an option, this
   option will be assigned to you and all distributions will be reinvested;
 
   CASH OPTION. All distributions will be paid to your Schwab account and, if
   requested, mailed to you the next business day; or
 
   CASH DIVIDENDS/REINVESTED CAPITAL GAINS. Dividends will be paid to you in
   cash and any capital gains distributions will be reinvested in additional
   shares.
 
- -  for exchanges only, the name of Fund and class, if applicable, into which you
   would like to exchange and a distribution choice; and
- -  if selling or exchanging by mail, a signature of at least one of the persons
   named on your Schwab account.
 
PLEASE NOTE THE FOLLOWING WHEN SELLING OR EXCHANGING SHARES OF THE FUNDS:
 
   
- -  redemption and exchange requests by mail are irrevocable and, once mailed,
   may not be modified or cancelled;
    
   
- -  payment for redeemed shares will be made to your Schwab account within 7
   days, and a check may be mailed to you upon request;
    
   
- -  a check for your shares will be issued on the business day following receipt
   and acceptance of your sale order and will be mailed to you upon request;
    
- -  if you bought your shares by check, a check will be issued as soon as your
   check clears, which may take up to 15 days;
- -  depending on the type of Schwab account you have, your money may earn
   interest during any holding period;
   
- -  a fee may be charged for redemptions by wire;
    
- -  you may exchange your shares for shares of any other SchwabFund, provided you
   meet its minimum investment and any other requirements;
   
- -  an exchange of the Fund's shares for shares of other SchwabFunds(R) will be
   treated as a taxable event for federal income tax purposes;
    
- -  the Funds and Schwab reserve the right to modify, limit or terminate the
   exchange privilege upon 60 days' written notification; and
- -  the Funds may suspend the right to sell shares or postpone payment for a sale
   of shares when trading on the NYSE is restricted, the NYSE is closed for any
   reason other than its customary weekend and holiday closings, emergency
   circumstances exist as determined by the SEC or as otherwise permitted by the
   SEC.
 
   
OPENING A SCHWAB ACCOUNT
    
Schwab was established in 1971 and is one of America's largest discount brokers.
Schwab helps over 5 million customers
 
                                       17
<PAGE>   20
 
make investment decisions by offering them low cost brokerage services and
providing them with financial products and information. Visit one of Schwab's
270 branch offices or Schwab's Web site (http://www.schwab.com/schwabfunds) for
information on investment products and services.
 
Investors may open a Schwab account by simply completing an application,
although institutional investors should contact Schwab to find out if any
additional forms need to be completed.
 
Using a Schwab account, investors have access to investments other than just
mutual funds, such as stocks and bonds. The Securities Investor Protection
Corporation (SIPC) provides account protection of up to $500,000 for the
securities held in a Schwab account, including shares of the Funds. It is
important to remember that SIPC insurance does not protect against losses due to
market or economic conditions.
 
Schwab offers different types of accounts with varying account opening and
balance requirements designed to fit the needs of a variety of investors.
Contact Schwab for more information and read your account agreement and
application for specific account details, including minimum initial investment
and balance requirements and fees. Contact Schwab for instructions and any
applicable fees if you would like to wire money from your Schwab account.
 
Deposits may be made to Schwab accounts by check, wire and other forms of
electronic funds transfer. Securities also may be deposited. All checks should
be made out to Charles Schwab & Co., Inc. Schwab will charge a $15 service fee
for any checks returned as a result of insufficient or uncollected funds or a
stop order. Monies received by Schwab before 4:00 p.m. Eastern time will be
available for investment in the Fund that day. Monies received by Schwab after
4:00 p.m. Eastern time will be available for investment in the Fund the next
business day.
 
TAX-ADVANTAGE RETIREMENT. Retirement plans offer excellent tax advantage and the
Funds may be especially suitable investments for them. Schwab's retirement plans
allow participants to defer taxes while helping them build their retirement
savings.
 
SCHWAB IRA. A retirement plan with a wide choice of investments offering people
with earned income the opportunity to compound earnings on a tax-deferred basis.
Schwab IRA accounts with balances of $10,000 or more by September 15, 1998 will
not be charged Schwab's $29 annual IRA account fee for the life of the account.
 
SCHWAB KEOGH. A tax-advantaged plan for self-employed individuals and their
employees that permit the employer to make annual tax-deductible contributions
of up to $30,000. Schwab Keogh Plans are currently charged an annual fee of $45.
 
SCHWAB CORPORATE RETIREMENT ACCOUNT. A well-designed retirement program can help
a company attract and retain valuable employees. Call 800-435-4000 for more
information.
                                       18
<PAGE>   21
 
SCHWAB AUTOMATIC INVESTMENT PLAN. Schwab's Automatic Investment Plan (AIP)
allows you to make periodic investments in non-money market SchwabFunds(R) (and
certain other funds available through Schwab) automatically and conveniently.
You can make automatic investments in any amount, from $100 to $50,000, once you
meet a Fund's investment minimum.
 
Automatic investments are made from your Schwab account using cash, Sweep Shares
of a Schwab Money Fund or the Schwab MoneyLink(R) Transfer Service. As long as
you are purchasing a Fund's shares through AIP, distributions paid to you by the
Fund must be reinvested in additional shares of that Fund. For more detailed
information about this service, or to establish your AIP, call 800-435-4000, 24
hours a day.
 
DIVIDENDS & TAXES
   
Each business day each Fund's net investment income is determined at the close
of the NYSE and declared as a dividend to shareholders of record. Net investment
income is calculated by subtracting each Fund's expenses from the income earned
on its investments that day. Dividends are declared each business day based on
the net investment income determined and are paid on the 25th of each month, if
it is a business day, except in December when dividends are paid on the last
business day of the month. If the 25th is not a business day, dividends are paid
on the next business day.
    
 
The following is only a brief summary of some of the federal and state income
tax consequences that may affect each Fund and its shareholders. Unless your
investment in a Fund is through a retirement account, you should consider the
tax implications of investing, and consult with your own tax adviser.
 
   
Each Fund will distribute its net investment income and capital gains, if any,
to shareholders each year. All distributions received by shareholders are
subject to federal income tax, and may be subject to state and/or local taxes.
Note that most states grant tax-exempt status to distributions paid to
shareholders from interest income derived from U.S. Government securities.
Distributions are taxable when paid, whether they are received in cash or
reinvested, although distributions declared in December, but paid in January,
are taxable as if they were paid on December 31.
    
 
Shareholders receive a record of all distributions by the Fund, as well as
purchases and sales they have made, via their monthly Schwab account statement.
Each year, the Fund notifies shareholders of all distributions made by the Fund
that year, including the percentage of dividends paid which may qualify for
tax-exempt status.
 
GENERAL INFORMATION
As long as either Fund or Schwab follows reasonable procedures to confirm that
your telephone order is genuine, they will not be liable for any losses an
investor may
 
                                       19
<PAGE>   22
 
experience due to unauthorized or fraudulent instructions.
 
These procedures may include:
- -  requiring a form of personal identification before acting upon any telephone
   order;
- -  providing written confirmation of telephone orders; and
- -  tape recording all telephone orders.
 
It may be difficult to place orders by telephone during periods of drastic
economic or market changes because Schwab's phone lines may become very busy
with calls from other investors. Consider other methods for placing an order,
such as writing to the Funds.
 
Share certificates will not be issued in order to avoid additional
administrative costs, however, share ownership records are maintained by Schwab.
Twice a year, financial reports will be mailed to shareholders describing each
Fund's performance and investment holdings. In order to reduce these mailing
costs, each household will receive one consolidated mailing. If you do not want
to receive consolidated mailings, you may write to your Fund and request that
your mailings not be consolidated.
 
Each Fund, in its sole discretion and without prior notice, reserves the right
to reject orders to purchase shares, change investment minimum requirements or
withdraw or suspend any part of the offering made by the prospectus.
 
- ---------------------------------------------------
 
NO ONE HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY STATEMENTS
ABOUT THIS OFFERING OTHER THAN THE INFORMATION CONTAINED IN THIS PROSPECTUS AND
IN OFFICIAL SALES MATERIALS. IF ANYONE GIVES ANY OTHER INFORMATION OR MAKES ANY
OTHER REPRESENTATIONS, DO NOT RELY ON SUCH INFORMATION OR REPRESENTATIONS.
- ---------------------------------------------------
 
THIS PROSPECTUS IS NOT AN OFFER IN ANY STATE IN WHICH SUCH AN OFFER MAY NOT
LAWFULLY BE MADE, NOR IS IT AN OFFER TO ANY PERSON TO WHOM SUCH AN OFFER MAY NOT
BE MADE.
- ---------------------------------------------------
 
                                       20
<PAGE>   23
 
              THIS SPACE RESERVED FOR YOUR COMMENTS AND QUESTIONS.
              A SCHWAB REPRESENTATIVE WILL BE HAPPY TO ASSIST YOU.
<PAGE>   24
 
              THIS SPACE RESERVED FOR YOUR COMMENTS AND QUESTIONS.
              A SCHWAB REPRESENTATIVE WILL BE HAPPY TO ASSIST YOU.
<PAGE>   25
 
              THIS SPACE RESERVED FOR YOUR COMMENTS AND QUESTIONS.
              A SCHWAB REPRESENTATIVE WILL BE HAPPY TO ASSIST YOU.
<PAGE>   26
SCHWABFUNDS(R)
- -----------

PROSPECTUS
NOVEMBER 4, 1998 


- -- SCHWAB SHORT-TERM
   BOND MARKET
   INDEX FUND

- -- SCHWAB TOTAL
   BOND MARKET
   INDEX FUND


SCHWAB BOND INDEX FUNDS

SCHWABFUNDS(R)
101 MONTGOMERY STREET
SAN FRANCISCO, CA  94104

MKT3384-3 (11/98) CRS 11267 Printed on recycled paper. 

<PAGE>   27
                                     PART A
                               SCHWAB INVESTMENTS
                              CROSS REFERENCE SHEET
                                       FOR
             SCHWAB CALIFORNIA SHORT/INTERMEDIATE TAX-FREE BOND FUND
                 SCHWAB CALIFORNIA LONG-TERM TAX-FREE BOND FUND

<TABLE>
<CAPTION>
Part A Item                                    Prospectus Caption
- -----------                                    ------------------
<S>                                            <C>
1.    Cover Page                               Cover Page

2.    Synopsis                                 Key Features;
                                               Expenses

3.    Condensed Financial Information          Not applicable

4.    General Description of Registrant        Organization & Management;
                                               Investment Objective, Policies & Risks

5.    Management of the Fund                   Organization & Management

5.(a) Management's Discussion of               Not applicable
      Fund Performance

6.    Capital Stock and Other Securities       Organization & Management;
                                               Investing in Shares

7.    Purchase of Securities Being Offered     Investing in Shares

8.    Redemption or Repurchase                 Investing in Shares

9.    Pending Legal Proceedings                Not applicable
</TABLE>
<PAGE>   28
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                       PAGE
                                       ----
<S>                                    <C>
KEY FEATURES.........................    2
EXPENSES.............................    3
FINANCIAL HIGHLIGHTS.................    5
PERFORMANCE..........................    7
ORGANIZATION & MANAGEMENT............    8
INVESTMENT OBJECTIVES, POLICIES &
  RISKS..............................   10
INVESTING IN SHARES..................   14
</TABLE>
    
 
The Prospectus provides concise information that you should know before
investing. Please retain it for future reference.
 
The Statement of Additional Information (SAI), dated November 4, 1998, contains
additional information and is incorporated by reference into the Prospectus. The
SAI has been filed with the Securities and Exchange Commission (SEC). The SEC
maintains a Web site (http://www.sec.gov) that contains the SAI, material
incorporated by reference and other information. The SAI is available without
charge by calling 1-800-435-4000 (800-345-2550 for TDD users) or writing to 101
Montgomery Street, San Francisco, California 94104.
 
LIKE ALL MUTUAL FUNDS, THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY
THE SEC OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SEC OR ANY STATE
SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                               SCHWAB CALIFORNIA
                               SHORT/INTERMEDIATE
                               TAX-FREE BOND FUND
 
                               SCHWAB CALIFORNIA
                                   LONG-TERM
                               TAX-FREE BOND FUND
 
                                   PROSPECTUS
                                NOVEMBER 4, 1998
 
SCHWAB CALIFORNIA SHORT/ INTERMEDIATE TAX-FREE BOND FUND (Short/Intermediate
Tax-Free Fund) seeks income exempt from federal and California personal income
taxes, while maintaining a dollar-weighted average maturity between two and five
years.
 
SCHWAB CALIFORNIA LONG-TERM TAX-FREE BOND FUND (Long-Term Tax-Free Fund) seeks
income exempt from federal and California personal income taxes, while
maintaining a dollar-weighted average maturity of at least ten years.
<PAGE>   29
 
KEY FEATURES
 
MATCHING A FUND TO YOUR INVESTMENT NEEDS: Each Fund may be appropriate for a
variety of investment programs. While an investment in a Fund is not a
substitute for an investment portfolio tailored to an individual's investment
needs and risk tolerance, each Fund could serve as a component of a long-term
investment portfolio designed to accumulate assets for major goals.
 
The Funds are designed to provide income exempt from federal and California
personal income taxes. The Funds are not suitable for investors who would not
benefit from the tax-exempt character of each Fund's investments, such as IRAs,
qualified retirement plans or other tax-exempt entities.
 
GOALS: Each Fund seeks income exempt from federal and California personal income
taxes, while maintaining a specific dollar-weighted average maturity (DWAM).
 
There is no guarantee the Funds will achieve their goals.
 
   
STRATEGIES: Each Fund intends to achieve its goal by investing in debt
securities, the interest on which is free from federal and California personal
income taxes.
    
 
Each Fund is a non-diversified mutual fund.
 
RISKS: Because each Fund invests substantially in municipal securities issued by
a single state, the performance of each Fund may be especially affected by the
state's economic conditions and political developments, as well as the ability
of issuers to meet their obligations.
 
MANAGEMENT: Charles Schwab Investment Management, Inc. (the Investment Manager)
currently provides investment management services to the SchwabFunds(R), a
family of 35 mutual funds with over $70 billion in assets as of August 31, 1998.
 
SHAREHOLDER SERVICE: Charles Schwab & Co., Inc. (Schwab) provides professional
representatives 24 hours a day at 1-800-435-4000 to service your accounts. Read
the "Investing in Shares" section of the prospectus for information on "How to
Buy Shares" and "How to Sell Shares" of the Funds.
 
   
LOW COST INVESTING: The Investment Manager and Schwab have voluntarily
guaranteed that, through at least October 31, 1999, total operating expenses of
each Fund will not exceed 0.49% of each Fund's average daily net assets.
    
 
                                        2
<PAGE>   30
 
EXPENSES
 
SHAREHOLDER TRANSACTION EXPENSES are charges you may pay when you buy, sell or
exchange shares of the Funds.
 
   
<TABLE>
<S>                                          <C>
Maximum Sales Charge on Purchases and
  Reinvested Dividends                       NONE
Deferred Sales Charge on Redemptions         NONE
Redemption Fee                               NONE
Exchange Fee                                 NONE
Account Maintenance Fees                     NONE
</TABLE>
    
 
   
The information on shareholder transaction expenses is for transactions through
a Schwab account. If you are purchasing, selling, exchanging or maintaining
shares of a Fund through an entity other than Schwab, other transaction expenses
may be charged by that entity.
    
 
ANNUAL OPERATING EXPENSES are paid by the Fund. These expenses include
management fees paid to the Investment Manager and other fees for services such
as maintaining shareholder records and furnishing shareholder statements and
financial reports. These expenses are factored into the price of the Fund's
shares and into the dividends paid to shareholders. As a shareholder, you are
not charged any of these fees directly.
 
The annual operating expenses stated below are based on historical expenses and
are stated as a percentage of average daily net assets of each Fund.
 
   
<TABLE>
<S>                                            <C>
SHORT/INTERMEDIATE TAX-FREE FUND
Management Fee (after reduction)               0.11%
12b-1 Fee                                      NONE
Other Expenses                                 0.38%
TOTAL OPERATING EXPENSES (AFTER REDUCTION)     0.49%
 
LONG-TERM TAX-FREE FUND
Management Fee (after reduction)               0.14%
12b-1 Fee                                      NONE
Other Expenses                                 0.35%
TOTAL OPERATING EXPENSES (AFTER REDUCTION)     0.49%
</TABLE>
    
 
EXAMPLE: If each Fund were to provide an annual return of 5%, you would pay the
following expenses on a $1,000 investment, whether you redeemed your shares at
the end of each period or left your shares invested.
 
SHORT/INTERMEDIATE TAX-FREE FUND
 
   
<TABLE>
<CAPTION>
1 YEAR   3 YEARS   5 YEARS   10 YEARS
- ------   -------   -------   --------
<S>      <C>       <C>       <C>
5.$..      $16       $27       $62
</TABLE>
    
 
LONG-TERM TAX-FREE FUND
 
   
<TABLE>
<CAPTION>
1 YEAR   3 YEARS   5 YEARS   10 YEARS
- ------   -------   -------   --------
<S>      <C>       <C>       <C>
5.$..      $16       $27       $62
</TABLE>
    
 
THE EXAMPLES SHOULD NOT BE CONSIDERED REPRESENTATIONS OF PAST OR FUTURE
EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESSER THAN THOSE SHOWN.
 
                                        3
<PAGE>   31
 
   
The Investment Manager and Schwab have voluntarily agreed to guarantee, at least
through October 31, 1999 that total operating expenses (excluding interest,
taxes, brokerage commissions and extraordinary expenses) of each Fund will not
exceed 0.49% of each Fund's average daily net assets. If these guarantees were
not in effect, the management fee, other expenses and total operating expenses
for the Short/Intermediate Tax-Free Fund and Long- Term Tax-Free Fund would have
been 0.41%, 0.38% and 0.79% and 0.41%, 0.35% and 0.76%, respectively, of each
Fund's average daily net assets. Read the "Organization & Management" section of
this prospectus for more information on expenses.
    
 
                                        4
<PAGE>   32
 
FINANCIAL HIGHLIGHTS
 
The following information has been audited by PricewaterhouseCoopers LLP,
independent accountants for the Funds. Their Report is included in the Annual
Report for the Funds, which is a separate report that contains additional
financial information.
 
The report, financial highlights and financial statements are incorporated by
reference into the SAI. For free copies of the Annual Report and/or the SAI,
call 1-800-435-4000.
 
For a share outstanding throughout each period:
   
<TABLE>
<CAPTION>
                                   Income from
                              Investment Operations                Less Distributions                    Ratios/Supplemental Data
                        ---------------------------------   ---------------------------------            -------------------------
                                     Net
                                   Realized
                                      &
                                  Unrealized                             Dividends               Net
  Fiscal    Net Asset     Net       Gains                   Dividends       from                Asset
  Period      Value     Invest-    (Losses)    Total from    from Net     Realized     Total    Value      Total      Net Assets
   Ended    Beginning    ment         on       Investment   Investment    Gain on     Distri-   End of   Return(5)   End of Period
  Aug. 31   of Period   Income    Investment   Operation      Income     Investment   butions   Period      (%)         (000's)
  -------   ---------   -------   ----------   ----------   ----------   ----------   -------   ------   ---------   -------------
  <S>       <C>         <C>       <C>          <C>          <C>          <C>          <C>       <C>      <C>         <C>
               Schwab California Short/Intermediate Tax-Free Bond Fund
   1998      $10.16      $0.41      $ 0.11       $ 0.52       $(0.42)      $--        $(0.42)   $10.26      5.19       $ 95,894
   1997      $10.04      $0.43      $ 0.12       $ 0.55       $(0.43)      $--        $(0.43)   $10.16      5.54       $ 58,876
   1996      $10.06      $0.43      $(0.02)      $ 0.41       $(0.43)      $--        $(0.43)   $10.04      4.11       $ 45,788
   1995      $ 9.89      $0.42      $ 0.17       $ 0.59       $(0.42)      $--        $(0.42)   $10.06      6.17       $ 40,639
   1994      $10.13      $0.37      $(0.24)      $ 0.13       $(0.37)      $--        $(0.37)   $ 9.89      1.29       $ 48,649
   1993(2)   $10.00      $0.13      $ 0.13       $ 0.26       $(0.13)      $--        $(0.13)   $10.13      2.57       $ 44,545
 
                        Schwab California Long-Term Tax-Free Bond Fund
   1998      $11.10      $0.54      $ 0.43       $ 0.97       $(0.55)      $--        $(0.55)   $11.52      8.96       $190,197
   1997      $10.63      $0.56      $ 0.47       $ 1.03       $(0.56)      $--        $(0.56)   $11.10      9.95       $125,284
   1996      $10.53      $0.57      $ 0.10       $ 0.67       $(0.57)      $--        $(0.57)   $10.63      6.43       $101,616
   1995      $10.40      $0.56      $ 0.13       $ 0.69       $(0.56)      $--        $(0.56)   $10.53      6.98       $ 90,045
   1994      $11.26      $0.56      $(0.74)      $(0.18)      $(0.56)      $(0.12)    $(0.68)   $10.40     (1.70)      $106,432
   1993(3)   $10.58      $0.38      $ 0.68       $ 1.06       $(0.38)      $--        $(0.38)   $11.26     10.13       $138,067
   1992(4)   $10.00      $0.51      $ 0.58       $ 1.09       $(0.51)      $--        $(0.51)   $10.58     11.10       $ 72,969
 
<CAPTION>
 
                 Ratios/Supplemental Data
           ------------------------------------
 
                          Ratio of
            Ratio of        Net
            Expenses     Investment
  Fiscal       to        Income to    Portfolio
  Period     Average      Average     Turnover
   Ended   Net Assets    Net Assets     Rate
  Aug. 31      (%)          (%)          (%)
  -------  -----------   ----------   ---------
  <S>      <C>           <C>          <C>
   1998       0.49          4.02           8
   1997       0.49          4.21          23
   1996       0.49          4.23          20
   1995       0.50          4.29          62
   1994       0.48          3.69          35
   1993(2     0.45(6)       3.49           0
   1998       0.49          4.79          28
   1997       0.49          5.17          35
   1996       0.49          5.30          36
   1995       0.58          5.54          46
   1994       0.60          5.12          48
   1993(3     0.60(6)       5.18(6)       47
   1992(4     0.45(6)       5.72(6)      124
</TABLE>
    
 
   
See footnotes on the following page.
    
 
                                        5
<PAGE>   33
 
   
(1) The information contained in the table on the previous page is based on
    actual expenses for the periods, after giving effect to the portion of
    expenses reduced and absorbed by the Investment Manager and Schwab. Had
    these expenses not been reduced and absorbed, the Fund's expense and net
    investment income ratios would have been:
    
 
   
<TABLE>
<CAPTION>
                        Schwab California               Schwab California
                        Short/Intermediate                  Long-Term
                             Tax-Free                        Tax-Free
                            Bond Fund                       Bond Fund
                       (without reductions)            (without reductions)
Fiscal Period        ------------------------        ------------------------
    Ended            Ratio of        Ratio of        Ratio of        Ratio of
  August 31          Expenses         Income         Expenses         Income
- -------------        --------        --------        --------        --------
<S>                  <C>             <C>             <C>             <C>
    1998               0.79%           3.72%           0.76%           4.52%
    1997               0.89%           3.81%           0.82%           4.84%
    1996               0.87%           3.85%           0.82%           4.97%
    1995               0.84%           3.95%           0.81%           5.31%
    1994               0.86%           3.31%           0.80%           4.92%
    1993               1.25%(2,6)      2.69%(2,6)      0.87%(3,6)      4.91%(3,6)
    1992               --              --              1.05%(4,6)      5.12%(4,6)
</TABLE>
    
 
   
(2) For the period April 21, 1993 (commencement of operations) to August 31,
    1993.
    
   
(3) For the period January 1, 1993 to August 31, 1993.
    
   
(4)For the period February 24, 1992 (commencement of operations) to December 31,
1992.
    
   
(5) Not annualized.
    
   
(6) Annualized.
    
 
                                        6
<PAGE>   34
 
PERFORMANCE
 
Typically, mutual funds report performance in terms of total return or yield.
 
   
TOTAL RETURN is the actual return of an investment assuming both the
reinvestment of any income earned and any change in share price. A cumulative
total return is the actual total return of an investment over a stated period of
time, while an average annual total return is a hypothetical rate of return,
which, if achieved annually would have produced the same cumulative total
return. An average annual total return will smooth out the actual year-to-year
fluctuations of an investment's return.
    
 
YIELD is the actual income earned on an investment over a stated period of time
and annualized (assumed to be generated over a year). For example, a thirty-day
yield measures the income earned on an investment over thirty days, annualizes
it and expresses that income as a percentage of the original investment. An
effective yield is calculated similarly, but income earned is assumed to be
reinvested. Because of this compounding effect, effective yields are generally
higher.
 
TAXABLE EQUIVALENT YIELD shows the yield that a taxable investment would have to
generate in order to equal a tax-free yield. A taxable equivalent effective
yield is calculated similarly, except that the effective yield is used in the
calculation.
 
Fund strategies, performance and holdings are detailed in financial reports,
which are sent to shareholders twice a year. For a free copy of the most recent
financial report, call 1-800-435-4000.
 
                                        7
<PAGE>   35
 
ORGANIZATION & MANAGEMENT
 
EACH FUND IS A NON-DIVERSIFIED MUTUAL FUND. Each Fund is a series of Schwab
Investments (the Trust).
 
THE FUNDS ARE OVERSEEN BY A BOARD OF TRUSTEES. The Board of Trustees meets
regularly to review each Fund's activities, contractual arrangements and
performance. The Board of Trustees is responsible for protecting the interests
of each Fund's shareholders.
 
THE FUNDS MAY HOLD SPECIAL MEETINGS. These meetings may be called for purposes
such as electing Trustees, changing fundamental policies and amending management
contracts. Shareholders are entitled to one vote for each share owned and may
vote by proxy or in person. Proxy materials will be mailed to shareholders prior
to any meetings, and will include a voting card and information explaining the
matters to be voted upon.
 
THE FUNDS ARE MANAGED BY THE INVESTMENT MANAGER. The Investment Manager is
responsible for managing each Fund's day-to-day business affairs, including
picking each Fund's investments; although the Investment Manager is subject to
the overall authority of the Board of Trustees.
 
   
Joanne Larkin is a Vice President of the Investment Manager and Senior Portfolio
Manager for the Funds. Ms. Larkin has primary responsibility for the day-to-day
portfolio management of each Fund, and has since each Fund commenced operation.
Prior to February 1992, Ms. Larkin was portfolio manager for the Shearson Lehman
California Municipal Bond Fund and E.F. Hutton's Municipal Cash Reserve
Management. Ms. Larkin graduated from Rosemont College with a Bachelor of Arts
in Sociology.
    
 
Stephen B. Ward is the Trust's Senior Vice President and Chief Investment
Officer. Mr. Ward has overall responsibility for the portfolio management of the
Funds. Mr. Ward joined the Investment Manager as Vice President and Portfolio
Manager in April 1991 and was promoted to his current position in August 1993.
Prior to joining the Investment Manager, Mr. Ward was Vice President and
Portfolio Manager at Federated Investors. Mr. Ward graduated with a Masters of
Business Administration from the Wharton School and a Bachelor of Arts in
Economics from Virginia Tech, and has been a Chartered Financial Analyst since
1985.
 
For the services performed under its contract with each Fund, the Investment
Manager is entitled to receive an annual fee, payable monthly from each Fund.
 
   
For the fiscal year ended August 31, 1998, the Short/Intermediate Tax-Free Fund
and the Long-Term Tax-Free Fund paid the Investment Manager investment
management fees of 0.11% and 0.14%, respectively, of each Fund's daily net
assets.
    
 
SCHWAB IS THE FUNDS' SHAREHOLDER SERVICES AND TRANSFER AGENT. Schwab provides
Fund information to shareholders, including share price, reporting shareholder
ownership and account activities and distributing the Fund's prospectuses,
financial reports and other informational
                                        8
<PAGE>   36
 
literature about the Funds. Schwab also maintains the office space, equipment
and personnel necessary to provide these services. Schwab also distributes and
markets SchwabFunds and provides other services.
 
For the services performed as transfer agent under its contract with each Fund,
Schwab is entitled to receive annual fees from the Funds. The fees are payable
monthly in the amount of 0.05% of each Fund's average daily net assets. For the
services performed as shareholder services agent under its contract with the
Funds, Schwab is entitled to receive annual fees from the Funds. The fees are
payable monthly in the amount of 0.20% of the average daily net assets of the
Funds.
 
   
THE FUNDS PAY OTHER EXPENSES. These expenses are typically connected with the
Trust's operations and include legal, audit and custodian fees, as well as the
costs of accounting and registration of the Funds. Expenses not directly
attributable to a particular fund will be allocated equitably among the Funds in
the Trust.
    
 
   
For the fiscal year ended August 31, 1998, the Short/Intermediate Tax-Free Fund
and the Long-Term Tax-Free Fund, respectively, paid total operating expenses in
the amount of 0.49% of each Fund's average daily net assets.
    
 
The Charles Schwab Corporation is the parent company of the Investment Manager
and Schwab. Charles R. Schwab is the founder, Chairman, Co-Chief Executive
Officer and Director of The Charles Schwab Corporation. As a result of his
ownership of and interests in The Charles Schwab Corporation, Mr. Schwab may be
deemed to be a controlling person of the Investment Manager and Schwab.
 
                                        9
<PAGE>   37
 
INVESTMENT OBJECTIVES, POLICIES & RISKS
 
INVESTMENT OBJECTIVES
Each Fund's investment objective is to seek a high level of current income that
is exempt from federal income and State of California personal income taxes,
consistent with preservation of capital.
 
Each Fund's investment objective may be changed only by vote of a majority of a
Fund's shareholders. Unless otherwise noted, policies and limitations may be
changed without shareholder approval.
 
INVESTMENT STRATEGIES
Each Fund intends to achieve its objective by investing in investment-grade
California municipal securities. Each Fund will normally invest at least 80% of
its total assets in these securities.
 
THE MATURITY of a security generally determines its sensitivity to interest rate
changes. In general, the longer the maturity, the more sensitive the security
will be to interest rate changes. For example, money market securities are
high-quality, short-term debt securities that reflect short-term interest rates
and normally carry little risk of fluctuation of principal value.
 
The Short/Intermediate Tax-Free Fund is designed to provide higher yields than a
tax-free money market fund by investing in investment-grade, short- and
intermediate-term California municipal securities that carry more risk of
fluctuation of principal. The Short/Intermediate Tax-Free Fund will normally
seek to maintain a DWAM of between two and five years.
 
The Long-Term Tax-Free Fund is designed to provide even higher yields by
investing in investment-grade, long-term California municipal securities that
carry an even higher risk of fluctuation of principal value. The Long-Term
Tax-Free Fund is expected to maintain a DWAM of at least ten years. Either Fund
may invest in securities of any maturity.
 
THE RISKS for each Fund are basically those risks associated with investing in
debt securities, although each risk factor may be intensified by the Funds'
concentrated investments in California municipal securities.
 
Generally speaking, there are four types of risk attendant to investing in debt
securities.
 
INTEREST RATE RISK is the potential for fluctuations in bond prices due to
changing interest rates. A fund's DWAM is an important factor to consider when
determining interest rate risk. This is because DWAM is a measure of a Fund's
maturity and maturity generally determines a Fund's sensitivity to changes in
interest rates.
 
INCOME RISK is the potential for a decline in income due to falling interest
rates.
 
CREDIT RISK is the possibility that a bond issuer will fail to make timely
payments of either interest or principal.
 
PREPAYMENT RISK or CALL RISK is the likelihood that, during periods of falling
interest rates, bonds will be prepaid (or "called") prior to maturity, requiring
the proceeds to be invested at a generally lower interest rate.
 
                                       10
<PAGE>   38
 
The amount of each type of risk each Fund will be subject to depends on its
portfolio of investments. Because the Funds invest substantially in California
municipal securities, they are expected to face income, credit and interest rate
risks, although the Long-Term Tax-Free Fund will face greater interest rate
risks as a result of its longer DWAM. Prepayment or call risks are not
predominant risk factors for most California municipal securities.
 
OTHER RISKS
An issue with the potential to disrupt fund operations and affect performance is
the inability of some computers to recognize the year 2000.
 
The investment manager is taking steps to enable its systems to handle this
change and is seeking assurances that its service providers and business
partners are taking similar steps as well. However, it is impossible to know in
advance exactly how this issue will affect fund administration, fund performance
or securities markets in general.
 
PRINCIPAL SECURITIES AND INVESTMENT TECHNIQUES
The different types of securities in which the Funds may invest are described
below.
 
DEBT SECURITIES are obligations, issued by various entities, including
governments and corporations, in order to raise money. They are basically
"IOUs," but are commonly referred to as bonds. Bonds normally require the issuer
to pay a fixed, variable or floating rate of interest on the amount of money
borrowed (the "principal") until it is paid back (at "maturity"). Upon maturity,
the principal must be repaid.
 
Debt securities experience price changes when interest rates change. Generally,
when interest rates rise, bond prices decline or "fall", and when interest rates
fall bond prices rise. Typically, longer-maturity bonds react to interest rate
changes more severely than shorter-term bonds (all else being equal) but
generally offer a greater rate of interest. Debt securities also are subject to
the risk that their issuer will fail to meet its obligation to pay interest
and/or principal, and their prices also may be affected by the credit quality of
their issuer.
 
Investment-grade debt securities are medium- and high-quality securities,
although some still possess varying degrees of speculative characteristics and
risk.
 
MUNICIPAL SECURITIES are debt securities issued by or on behalf of a state,
including its counties, municipalities, authorities and other subdivisions, or
the territories and possessions of the United States and the District of
Columbia, including their subdivisions, agencies and instrumentalities. These
securities are issued to raise money for various public purposes or private
activities such as general financing for state and local governments or
financing for specific projects or facilities.
 
Municipal securities pay fixed, variable or floating rates of interest, which
also is meant to be exempt from federal income tax, and, typically, personal
income tax of a state or
                                       11
<PAGE>   39
 
locality. Municipal securities may be owned directly or through participation
interests, and include general obligations or revenue securities, anticipation
notes and municipal leases.
 
The value of municipal securities may be affected by legislation or litigation
involving the taxation of municipal securities or the rights of holders of
municipal securities. In addition, some municipal securities involve private
entities, and the value of these securities could be affected by the credit
quality of the private entity and possibly by the circumstances affecting the
project.
 
Restriction: Each Fund will normally invest at least 80% of its total assets in
municipal securities the interest on which is free from federal income tax
including federal alternative minimum tax. This policy may be changed only by
shareholders. Each Fund may invest more than 25% in municipal securities
financing similar projects.
 
CALIFORNIA MUNICIPAL SECURITIES are municipal securities issued by or on behalf
of the state of California or its counties, municipalities, authorities or other
subdivisions. These securities are subject to the same general risks associated
with other municipal securities, although their value will be particularly
affected by economic, political, geographic and demographic conditions and
developments within California. Additionally, like all securities, the value of
California municipal securities may be affected by any change in the perceived
ability of issuers to meet their obligations.
 
CREDIT AND LIQUIDITY SUPPORTS may be employed by issuers to reduce the credit
risk of their securities. Credit supports include letters of credit, insurance
and guarantees provided by foreign and domestic entities and municipal
securities are sometimes issued with moral obligations, which are a type of
credit support. Liquidity supports include puts and demand features. Credit and
liquidity supports move the credit risk of an investment from the issuer of the
security to the support provider. Changes in the credit quality of a support
provider could cause losses to a fund, and affect its share price. In addition,
credit and liquidity supports provided by foreign entities may involve more risk
because of the possibility of adverse foreign economic, political and legal
developments.
 
   
VARIABLE AND FLOATING RATE SECURITIES pay an interest rate, which is adjusted
either periodically or at specific intervals or floats continuously according to
a formula or benchmark. Although these securities generally are intended to
minimize the fluctuations in value that occur when interest rates rise and fall,
some securities may be linked to a benchmark in such a way as to cause greater
volatility to the security's value.
    
 
PUTS are agreements that allow the buyer to sell a security at a specified price
and time to the seller or "put provider". When a Fund buys a put, losses could
occur as a result of the costs of the put or if the put provider does not
perform as agreed. Losses could result to a Fund (as a put provider),
 
                                       12
<PAGE>   40
 
if the buyer exercises its rights under the put. Standby commitments and demand
features are types of puts.
 
   
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES are securities that are purchased
but are to be delivered to the buyer at a later than customary date, price and
yield. Generally, the purchaser does not pay for these securities or earn
interest on them until they are delivered, but their value could change prior to
delivery.
    
 
ILLIQUID SECURITIES are securities which are not actively traded or are subject
to legal restrictions and, therefore, may be difficult to sell quickly or
without losses.
 
Restriction: Each Fund will not invest more than 10% of its net assets in
illiquid securities.
 
SECURITIES OF OTHER INVESTMENT COMPANIES may be purchased by a Fund. These
investments will cause a Fund to bear duplicative fees for certain services.
 
The Funds also may employ the policies described below.
 
DIVERSIFICATION involves investing in a wide range of securities and, thereby,
spreading and reducing the risks of investment. Non-diversified mutual funds are
more sensitive to changes that affect a single security.
 
Restriction: Each Fund is a non-diversified mutual fund. In order to meet
federal tax requirements, each Fund will not invest more than 25% of its total
assets in the securities of a single issuer, and, with respect to 50% of its
total assets, will not invest more than 5% in a single issuer. This limitation
does not apply to U.S. Government securities.
 
   
BORROWING is a form of leveraging if a Fund continues to make investments while
borrowings remain outstanding. Borrowing subjects a Fund to interest costs,
which may exceed the interest received on the securities purchased with the
borrowed funds.
    
 
Restriction: Each Fund may borrow up to 33 1/3% of its total assets for
temporary or emergency purposes; provided that neither Fund will purchase
securities while borrowings represent more than 5% of its total assets. This
policy may be changed only by shareholders.
 
LENDING securities may earn income for a Fund, but could result in losses to the
Fund, and possibly affect share price.
 
TEMPORARY INVESTMENTS in U.S. Government securities, money market securities,
repurchase agreements and other taxable securities may be made by each Fund as a
defensive measure or under abnormal market conditions.
 
                                       13
<PAGE>   41
 
INVESTING IN SHARES
 
BUSINESS DAYS
The Funds are open each day the New York Stock Exchange (NYSE) is open (business
days).
 
NET ASSET VALUE
   
The price of each share of each Fund is its net asset value per share (NAV). NAV
is determined each business day after the close of the NYSE, generally 4:00 p.m.
Eastern time. NAV is calculated by adding the value of each Fund's assets,
subtracting its liabilities and dividing the result by the number of outstanding
shares. Each Fund's NAV will fluctuate and neither Fund is insured against loss
in its NAV.
    
 
Each Fund values its portfolio securities based on market quotes if they are
readily available. If market quotes are not readily available, portfolio
securities are assigned fair market values pursuant to guidelines adopted by the
Board of Trustees.
 
MINIMUM INVESTMENTS
 
<TABLE>
<S>                                 <C>
INITIAL INVESTMENT................  $1,000
for custodial accounts............  $  500
ADDITIONAL SHARES.................  $  100
MINIMUM BALANCE*..................  $  500
for custodial accounts............  $  250
</TABLE>
 
* Your shares may be automatically redeemed if, as a result of selling or
  exchanging shares, you no longer meet a Fund's minimum balance requirements.
  You will be given 30 days' notice prior to redemption to increase your
  holdings to the required minimum balance.
 
These minimums may not be applicable to certain customers of Schwab
Institutional's Services for Investment Managers or Schwab's Retirement Plan
Services.
 
These minimums may be different if you are buying, selling/exchanging or
maintaining shares of a Fund through an entity other than Schwab.
 
HOW TO BUY, SELL OR EXCHANGE SHARES
Shares may be purchased, sold or exchanged through an account at Schwab or with
any other entity designated by Schwab. The following information on how to buy,
sell and exchange shares is for transactions through an account at Schwab.
 
Shares are purchased, sold or exchanged at the NAV next determined after your
order has been received in good order. Orders received in good order by Schwab
prior to 4:00 p.m. Eastern time will be executed that day. Shares bought
normally begin to earn dividends, if any, on the next business day, while shares
sold or exchanged normally earn dividends, if any, on that day.
 
BY TELEPHONE. Call 1-800-435-4000, 24 hours a day (1-800-345-2550 for TDD
users).
 
BY MAIL. Write to the Fund at 101 Montgomery Street, San Francisco, CA 94104.
 
ELECTRONICALLY. Visit Schwab's Web site at http://www.schwab.com/schwabfunds.
For more information about, StreetSmart(R), The Equalizer(R) and Telebroker(R),
call 1-800-435-4000.
                                       14
<PAGE>   42
 
Please provide the following information:
 
- -  your name and Schwab account number;
- -  the name of your Fund;
- -  the dollar amount you would like to buy, sell or exchange; and
- -  for initial purchases only, one of the three distribution choices below.
 
   AUTOMATIC REINVESTMENT. Dividends and capital gain distributions will be
   reinvested in shares of your Fund. If you do not choose an option, this
   option will be assigned to you and all distributions will be reinvested;
 
   CASH OPTION. All distributions will be paid to your Schwab account and, if
   requested, mailed to you the next business day; or
 
   CASH DIVIDENDS/REINVESTED CAPITAL GAINS. Dividends will be paid to you in
   cash and any capital gains distributions will be reinvested in additional
   shares.
 
- -  for exchanges only, the name of Fund and class, if applicable, into which you
   would like to exchange and a distribution choice; and
- -  if selling or exchanging by mail, a signature of at least one of the persons
   named on your Schwab account.
 
PLEASE NOTE THE FOLLOWING WHEN SELLING OR EXCHANGING SHARES OF THE FUND:
 
- -  redemption and exchange requests by mail are irrevocable and, once mailed,
   may not be modified or cancelled;
- -  payment for redeemed shares will be made to your Schwab account within 7
   days, and a check may be mailed to you upon request;
   
- -  a check for your shares will be issued on the business day following receipt
   and acceptance of your sale order, and will be mailed to you upon request;
    
   
- -  if you bought your shares by check, a check will be issued as soon as your
   check clears, which may take up to 15 days;
    
- -  depending on the type of Schwab account you have, your money may earn
   interest during any holding period;
- -  a fee may be charged for redemptions by wire;
- -  you may exchange your shares for shares of any other SchwabFund, provided you
   meet its minimum investment and any other requirements;
- -  an exchange of the Fund's shares for shares of other SchwabFunds(R) will be
   treated as a taxable event for federal income tax purposes;
   
- -  the Funds and Schwab reserve the right to modify, limit or terminate the
   exchange privilege upon 60 days' written notification; and
    
   
- -  the Funds may suspend the right to sell shares or postpone payment for a sale
   of shares when trading on the NYSE is restricted, the NYSE is closed for any
   reason other than its customary weekend and holiday closings, emergency
   circumstances exist as determined by the SEC or as otherwise permitted by the
   SEC.
    
 
                                       15
<PAGE>   43
 
OPENING A SCHWAB ACCOUNT
Schwab was established in 1971 and is one of America's largest discount brokers.
Schwab helps over 5 million customers make investment decisions by offering them
low cost brokerage services and providing them with financial products and
information. Visit one of Schwab's 270 branch offices or Schwab's Web site
(http://www.schwab.com/schwabfunds) for information on investment products and
services. Investors may open a Schwab account by simply completing an
application, although institutional investors should contact Schwab to find out
if any additional forms need to be completed.
 
Using a Schwab account, investors have access to investments other than just
mutual funds, such as stocks and bonds. The Securities Investor Protection
Corporation (SIPC) provides account protection of up to $500,000 for the
securities held in a Schwab account, including shares of the Funds. It is
important to remember that SIPC insurance does not protect against losses due to
market or economic conditions.
 
Schwab offers different types of accounts with varying account opening and
balance requirements designed to fit the needs of a variety of investors.
Contact Schwab for more information and read your account agreement and
application for specific account details, including minimum initial investment
and balance requirements and fees. Contact Schwab for instructions and any
applicable fees if you would like to wire money from your Schwab account.
 
Deposits may be made to Schwab accounts by check, wire and other forms of
electronic funds transfer. Securities also may be deposited. All checks should
be made out to Charles Schwab & Co., Inc. Schwab will charge a $15 service fee
for any checks returned as a result of insufficient or uncollected funds or a
stop order. Monies received by Schwab before 4:00 p.m. Eastern time will be
available for investment in the Fund that day. Monies received by Schwab after
4:00 p.m. Eastern time will be available for investment in the Fund the next
business day.
 
SCHWAB AUTOMATIC INVESTMENT PLAN. Schwab's Automatic Investment Plan ("AIP")
allows you to make periodic investments in non-money market SchwabFunds(R) (and
certain other funds available through Schwab) automatically and conveniently.
You can make automatic investments in any amount, from $100 to $50,000, once you
meet a Fund's investment minimum. Automatic investments are made from your
Schwab account: using cash, Sweep Shares of a Schwab Money Fund; or the Schwab
MoneyLink(R) Transfer Service. As long as you are purchasing a Fund's shares
through AIP, distributions paid to you by the Fund must be reinvested in
additional shares of that Fund. For more detailed information about this
service, or to establish your AIP, call 1-800-435-4000, 24 hours a day.
 
DIVIDENDS & TAXES
Each business day each Fund's net investment income is determined at the
                                       16
<PAGE>   44
 
   
close of the NYSE and declared as a dividend to shareholders of record. Net
investment income is calculated by subtracting each Fund's expenses from the
income earned on its investments that day. Dividends are declared each business
day based on the net investment income determined and are paid on the 25th of
each month, if it is a business day, except in December when dividends are paid
on the last business day of the month. If the 25th is not a business day,
dividends are paid on the next business day.
    
 
The following is only a brief summary of some of the federal and state income
tax consequences that may affect each Fund and its shareholders. You should
consider the tax implications of investing, and consult with your own tax
adviser.
 
   
Each Fund will distribute its net investment income and capital gains, if any,
to shareholders each year. Dividends derived from exempt-interest income will be
exempt from federal income tax when distributed to shareholders. In addition,
dividends paid by each Fund are expected to be exempt from California personal
income tax. Some distributions received by shareholders may be subject to
federal or state and/or local income taxes. For example, distributions derived
from a gain on the sale of tax-free bonds is typically subject to federal income
tax. To the extent distributions are subject to federal or state and/or local
income taxes, they are taxable when paid, whether received in cash or
reinvested, although distributions declared in December, but paid in January,
are taxable as if they were paid on December 31.
    
 
The interest from some municipal securities is subject to the federal
alternative minimum tax. Each Fund may invest up to 20% of its total assets in
these securities; provided that the total income earned on these securities does
not exceed 20% of the total income earned by the Fund. Shareholders subject to
federal alternative minimum tax must take this interest into account in
computing their federal alternative minimum tax liability.
 
Shareholders receive a record of all distributions by a Fund, as well as
purchases and sales they have made, via their monthly Schwab account statement.
Each year, the Funds notify shareholders of all distributions made by the Funds
that year, including the federal income and California personal income tax
consequences of the distributions.
 
                                       17
<PAGE>   45
 
GENERAL INFORMATION
As long as either Fund or Schwab follows reasonable procedures to confirm that
your telephone order is genuine, they will not be liable for any losses an
investor may experience due to unauthorized or fraudulent instructions.
 
These procedures may include:
- -  requiring a form of personal identification before acting upon any telephone
   order;
- -  providing written confirmation of telephone orders; and
- -  tape recording all telephone orders.
 
It may be difficult to place orders by telephone during periods of drastic
economic or market changes because Schwab's phone lines may become very busy
with calls from other investors. Consider other methods for placing an order,
such as writing to the Funds.
 
Share certificates will not be issued in order to avoid additional
administrative costs, however, share ownership records are maintained by Schwab.
Twice a year, financial reports will be mailed to shareholders describing each
Fund's performance and investment holdings. In order to reduce these mailing
costs, each household will receive one consolidated mailing. If you do not want
to receive consolidated mailings, you may write to your Fund and request that
your mailings not be consolidated.
 
Each Fund, in its sole discretion and without prior notice, reserves the right
to reject orders to purchase shares, change minimum investment requirements or
withdraw or suspend any part of the offering made by the prospectus.
 
- ---------------------------------------------------
 
NO ONE HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY STATEMENTS
ABOUT THIS OFFERING OTHER THAN THE INFORMATION CONTAINED IN THIS PROSPECTUS AND
IN OFFICIAL SALES MATERIALS. IF ANYONE GIVES ANY OTHER INFORMATION OR MAKES ANY
OTHER REPRESENTATIONS, DO NOT RELY ON SUCH INFORMATION OR REPRESENTATIONS.
- ---------------------------------------------------
 
THIS PROSPECTUS IS NOT AN OFFER IN ANY STATE IN WHICH SUCH AN OFFER MAY NOT
LAWFULLY BE MADE, NOR IS IT AN OFFER TO ANY PERSON TO WHOM SUCH AN OFFER MAY NOT
BE MADE.
- ---------------------------------------------------
 
                                       18
<PAGE>   46
 
              THIS SPACE RESERVED FOR YOUR COMMENTS AND QUESTIONS.
              A SCHWAB REPRESENTATIVE WILL BE HAPPY TO ASSIST YOU.
<PAGE>   47
SCHWABFUNDS(R)
- -----------

PROSPECTUS
NOVEMBER 4, 1998 


SCHWAB CALIFORNIA TAX-FREE BOND FUNDS

- ----------------
   BULK RATE
 U.S. POSTAGE
     PAID
CHARLES SCHWAB
- ----------------

SCHWABFUNDS(R)
101 MONTGOMERY STREET
SAN FRANCISCO, CA  94104

920-8 (11-98) Printed on recycled paper.

<PAGE>   48
                                     PART A
                               SCHWAB INVESTMENTS
                              CROSS REFERENCE SHEET
                                       FOR
                  SCHWAB SHORT/INTERMEDIATE TAX-FREE BOND FUND
                       SCHWAB LONG-TERM TAX-FREE BOND FUND

<TABLE>
<CAPTION>
Part A Item                                     Prospectus Caption
- -----------                                     ------------------
<S>                                             <C>
1.    Cover Page                                Cover Page

2.    Synopsis                                  Key Features;
                                                Expenses

3.    Condensed Financial Information           Not applicable

4.    General Description of Registrant         Organization & Management;
                                                Investment Objective, Policies & Risks

5.    Management of the Fund                    Organization & Management

5.(a) Management's Discussion of                Not applicable
      Fund Performance

6.    Capital Stock and Other Securities        Organization & Management;
                                                Investing in Shares

7.    Purchase of Securities Being Offered      Investing in Shares

8.    Redemption or Repurchase                  Investing in Shares

9.    Pending Legal Proceedings                 Not applicable
</TABLE>
<PAGE>   49
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                       PAGE
                                       ----
<S>                                    <C>
KEY FEATURES.........................    2
EXPENSES.............................    3
FINANCIAL HIGHLIGHTS.................    5
PERFORMANCE..........................    7
ORGANIZATION & MANAGEMENT............    8
INVESTMENT OBJECTIVES, POLICIES &
  RISKS..............................   10
INVESTING IN SHARES..................   14
</TABLE>
    
 
The Prospectus provides concise information that you should know before
investing. Please retain it for future reference.
 
The Statement of Additional Information (SAI), dated November 4, 1998, contains
additional information and is incorporated by reference into the Prospectus. The
SAI has been filed with the Securities and Exchange Commission (SEC). The SEC
maintains a Web site (http://www.sec.gov) that contains the SAI, material
incorporated by reference and other information. The SAI is available without
charge by calling 1-800-435-4000 (800-345-2550 for TDD users) or writing to 101
Montgomery Street, San Francisco, California 94104.
 
LIKE ALL MUTUAL FUNDS, THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY
THE SEC OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SEC OR ANY STATE
SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                           SCHWAB SHORT/INTERMEDIATE
                               TAX-FREE BOND FUND
 
                           SCHWAB LONG-TERM TAX-FREE
                                   BOND FUND
 
                                   PROSPECTUS
                                NOVEMBER 4, 1998
 
SCHWAB SHORT/INTERMEDIATE TAX-FREE BOND FUND (Short/Intermediate Tax-Free Fund)
seeks income exempt from federal income tax, while maintaining a dollar-weighted
average maturity between two and five years.
 
SCHWAB LONG-TERM TAX-FREE BOND FUND (Long-Term Tax-Free Fund) seeks income
exempt from federal income tax, while maintaining a dollar-weighted average
maturity of at least ten years.
<PAGE>   50
 
KEY FEATURES
 
MATCHING A FUND TO YOUR INVESTMENT NEEDS: Each Fund may be appropriate for a
variety of investment programs. While an investment in a Fund is not a
substitute for an investment portfolio tailored to an individual's investment
needs and risk tolerance, each Fund could serve as a component of a long-term
investment portfolio designed to accumulate assets for major goals.
 
The Funds are designed to provide income exempt from federal income tax. The
Funds are not suitable for investors who would not benefit from the tax-exempt
character of each Fund's investments, such as IRAs, qualified retirement plans
or tax-exempt entities.
 
GOALS: Each Fund seeks income exempt from federal income tax, while maintaining
a specific dollar-weighted average maturity (DWAM).
 
There is no guarantee the Funds will achieve their goals.
 
STRATEGIES: Each Fund intends to achieve its goal by investing in debt
securities, the interest on which is exempt from federal income tax.
 
Each Fund is a non-diversified mutual fund.
 
RISKS: Because each Fund invests substantially in municipal securities, the
performance of each Fund may be especially affected by state and local economic
conditions and political developments, as well as the ability of issuers to meet
their obligations.
 
   
MANAGEMENT: Charles Schwab Investment Management, Inc. (the Investment Manager)
currently provides investment management services to the SchwabFunds(R), a
family of 35 mutual funds with over $70 billion in assets as of August 31, 1998.
    
 
   
SHAREHOLDER SERVICE: Charles Schwab & Co., Inc. (Schwab) provides professional
representatives 24 hours a day at 1-800-435-4000 to service your accounts. Read
the "Investing in Shares" section of the prospectus for information on "How to
Buy Shares" and "How to Sell Shares" of the Funds.
    
 
   
LOW COST INVESTING: The Investment Manager and Schwab have voluntarily
guaranteed that, through at least October 31, 1999, total operating expenses of
each Fund will not exceed 0.49% of each Fund's average daily net assets.
    
 
                                        2
<PAGE>   51
 
EXPENSES
 
SHAREHOLDER TRANSACTION EXPENSES are charges you may pay when you buy, sell or
exchange shares of the Funds.
 
   
<TABLE>
<S>                                          <C>
Maximum Sales Charge on Purchases and
  Reinvested Dividends                       NONE
Deferred Sales Charge on Redemptions         NONE
Redemption Fee                               NONE
Exchange Fee                                 NONE
Account Maintenance Fees                     NONE
</TABLE>
    
 
   
The information on shareholder transaction expenses is for transactions through
a Schwab account. If you are purchasing, selling, exchanging or maintaining
shares of a Fund through an entity other than Schwab, other transaction expenses
may be changed by that entity.
    
 
ANNUAL OPERATING EXPENSES are paid by the Fund. These expenses include
management fees paid to the Investment Manager and other fees for services such
as maintaining shareholder records and furnishing shareholder statements and
financial reports. These expenses are factored into the price of the Fund's
shares and into the dividends paid to shareholders. As a shareholder, you are
not charged any of these fees directly.
 
The annual operating expenses stated below are based on historical expenses and
are stated as a percentage of average daily net assets of each Fund.
 
   
<TABLE>
<S>                                             <C>
SHORT/INTERMEDIATE TAX-FREE FUND
Management Fee (after reduction)                .05%
12b-1 fee                                       NONE
Other Expenses                                  .44%
TOTAL OPERATING EXPENSES (AFTER REDUCTION)      .49%
LONG-TERM TAX-FREE FUND
Management Fee (after reduction)                .04%
12b-1 fee                                       NONE
Other Expenses                                  .45%
TOTAL OPERATING EXPENSES (AFTER REDUCTION)      .49%
</TABLE>
    
 
EXAMPLE: If each Fund were to provide an annual return of 5%, you would pay the
following expenses on a $1,000 investment, whether you redeemed your shares at
the end of each period or left your shares invested.
 
SHORT/INTERMEDIATE TAX-FREE FUND
 
   
<TABLE>
<CAPTION>
1 YEAR   3 YEARS   5 YEARS   10 YEARS
- ------   -------   -------   --------
<S>      <C>       <C>       <C>
  $5       $16       $27       $62
</TABLE>
    
 
LONG-TERM TAX-FREE FUND
 
   
<TABLE>
<CAPTION>
1 YEAR   3 YEARS   5 YEARS   10 YEARS
- ------   -------   -------   --------
<S>      <C>       <C>       <C>
  $5       $16       $27       $62
</TABLE>
    
 
THE EXAMPLES SHOULD NOT BE CONSIDERED REPRESENTATIONS OF PAST OR FUTURE
EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESSER THAN THOSE SHOWN.
 
                                        3
<PAGE>   52
 
   
The Investment Manager and Schwab have voluntarily agreed to guarantee, at least
through October 31, 1999, that total operating expenses (excluding interest,
taxes, brokerage commissions and extraordinary expenses) of each Fund will not
exceed 0.49% of each Fund's average daily net assets. If these guarantees were
not in effect, the management fee, other expenses and total operating expenses
for the Short/Intermediate Tax-Free Fund and Long-Term Tax-Free Fund would have
been 0.41%, 0.44% and 0.85% and 0.41%, 0.45% and 0.86%, respectively, of each
Fund's average daily net assets. Read the "Organization & Management" section of
this prospectus for more information on expenses.
    
 
                                        4
<PAGE>   53
 
FINANCIAL HIGHLIGHTS
 
The following information has been audited by PricewaterhouseCoopers LLP,
independent accountants for the Funds. Their Report is included in the Annual
Report for the Funds, which is a separate report that contains additional
financial information.
 
The report, financial highlights and financial statements are incorporated by
reference into the SAI. For free copies of the Annual Report and/or the SAI,
call 1-435-4000.
 
   
For a share outstanding throughout each period:
    
   
<TABLE>
<CAPTION>
                                   Income from
                              Investment Operations                Less Distributions                    Ratios/Supplemental Data
                        ---------------------------------   ---------------------------------            -------------------------
                                     Net
                                   Realized
                                      &
                                  Unrealized                             Dividends               Net
  Fiscal    Net Asset     Net       Gains                   Dividends       from                Asset
  Period      Value     Invest-    (Losses)    Total from    from Net     Realized     Total    Value      Total      Net Assets
   Ended    Beginning    ment         on       Investment   Investment    Gain on     Distri-   End of   Return(5)   End of Period
  Aug. 31   of Period   Income    Investment   Operation      Income     Investment   butions   Period      (%)         (000's)
  -------   ---------   -------   ----------   ----------   ----------   ----------   -------   ------   ---------   -------------
  <S>       <C>         <C>       <C>          <C>          <C>          <C>          <C>       <C>      <C>         <C>
                          Schwab Short/Intermediate Tax-Free Bond Fund
   1998      $10.16      $0.42      $ 0.10       $ 0.52       $(0.42)      $--        $(0.42)   $10.26      5.17        $68,281
   1997      $10.04      $0.41      $ 0.12       $ 0.53       $(0.41)      $--        $(0.41)   $10.16      5.40        $54,397
   1996      $10.12      $0.41      $(0.08)      $ 0.33       $(0.41)      $--        $(0.41)   $10.04      3.32        $54,132
   1995      $ 9.92      $0.40      $ 0.20       $ 0.60       $(0.40)      $--        $(0.40)   $10.12      6.23        $52,504
   1994      $10.15      $0.37      $(0.23)      $ 0.14       $(0.37)      $--        $(0.37)   $ 9.92      1.42        $63,889
   1993(2)   $10.00      $0.13      $ 0.15       $ 0.28       $(0.13)      $--        $(0.13)   $10.15      2.83        $54,450
                                   Schwab Long-Term Tax-Free Bond Fund
   1998      $10.53      $0.53      $ 0.48       $ 1.01       $(0.53)      $--        $(0.53)   $11.01      9.81        $69,925
   1997      $10.13      $0.53      $ 0.40       $ 0.93       $(0.53)      $--        $(0.53)   $10.53      9.36        $46,767
   1996      $10.16      $0.52      $(0.03)      $ 0.49       $(0.52)      $--        $(0.52)   $10.13      4.87        $43,672
   1995      $ 9.95      $0.53      $ 0.21       $ 0.74       $(0.53)      $--        $(0.53)   $10.16      7.76        $41,413
   1994      $10.59      $0.52      $(0.56)      $(0.04)      $(0.52)      $(0.08)    $(0.60)   $ 9.95     (0.42)       $43,975
   1993(3)   $ 9.92      $0.36      $ 0.67       $ 1.03       $(0.36)      $--        $(0.36)   $10.59     10.56        $50,413
   1992(4)   $10.00      $0.17      $(0.08)      $ 0.09       $(0.17)      $--        $(0.17)   $ 9.92      0.92        $28,034
 
<CAPTION>
 
                 Ratios/Supplemental Data
           ------------------------------------
 
                          Ratio of
            Ratio of        Net
            Expenses     Investment
  Fiscal       to        Income to    Portfolio
  Period     Average      Average     Turnover
   Ended   Net Assets    Net Assets     Rate
  Aug. 31      (%)          (%)          (%)
  -------  -----------   ----------   ---------
  <S>      <C>           <C>          <C>
   1998       0.49          3.99         22
   1997       0.49          4.08         20
   1996       0.49          4.06         44
   1995       0.49          4.06         35
   1994       0.48          3.71         19
   1993(2     0.45(6)       3.63(6)      11
   1998       0.49          4.76         39
   1997       0.49          5.09         61
   1996       0.49          5.06         50
   1995       0.54          5.40         70
   1994       0.51          5.05         62
   1993(3     0.45(6)       5.30(6)      91
   1992(4     0.45(6)       5.61(6)      54
</TABLE>
    
 
   
See footnotes on the following page.
    
 
                                        5
<PAGE>   54
 
   
(1) The information contained in the table on the previous page is based on
    actual expenses for the periods, after giving effect to the portion of
    expenses reduced and absorbed by the Investment Manager and Schwab. Had
    these expenses not been reduced and absorbed, the Fund's expense and net
    investment income ratios would have been:
    
 
   
<TABLE>
<CAPTION>
                              Schwab
                        Short/Intermediate               Schwab Long-Term
                             Tax-Free                        Tax-Free
                            Bond Fund                       Bond Fund
                       (without reductions)            (without reductions)
Fiscal Period        ------------------------        ------------------------
    Ended            Ratio of        Ratio of        Ratio of        Ratio of
  August 31          Expenses         Income         Expenses         Income
- -------------        --------        --------        --------        --------
<S>                  <C>             <C>             <C>             <C>
    1998               0.85%           3.62%           0.86%           4.38%
    1997               0.96%           3.61%           1.02%           4.56%
    1996               0.90%           3.65%           0.94%           4.61%
    1995               0.89%           3.66%           0.93%           5.01%
    1994               0.91%           3.28%           0.99%           4.57%
    1993               1.26%(2,6)      2.82%(2,6)      1.18%(3,6)      4.57%(3,6)
    1992               --              --              1.53%(4,6)      4.53%(4,6)
</TABLE>
    
 
   
(2) For the period April 21, 1993 (commencement of operations) to August 31,
    1993.
    
   
(3) For the period January 1, 1993 to August 31, 1993.
    
   
(4)For the period September 11, 1992 (commencement of operations) to December
31, 1992.
    
   
(5) Not annualized.
    
   
(6) Annualized.
    
 
                                        6
<PAGE>   55
 
PERFORMANCE
 
Typically, mutual funds report performance in terms of total return or yield.
 
   
TOTAL RETURN is the actual return of an investment assuming both the
reinvestment of any income earned and any change in share price. A cumulative
total return is the actual total return of an investment over a stated period of
time, while an average annual total return is a hypothetical rate of return,
which, if achieved annually would have produced the same cumulative total
return. An average annual total return will smooth out the actual year-to-year
fluctuations of an investment's return.
    
 
YIELD is the actual income earned on an investment over a stated period of time
and annualized (assumed to be generated over a year). For example, a thirty-day
yield measures the income earned on an investment over thirty days, annualizes
it and expresses that income as a percentage of the original investment. An
effective yield is calculated similarly, but income earned is assumed to be
reinvested. Because of this compounding effect, effective yields are generally
higher.
 
TAXABLE EQUIVALENT YIELD shows the yield that a taxable investment would have to
generate in order to equal a tax-free yield. A taxable equivalent effective
yield is calculated similarly, except that the effective yield is used in the
calculation.
 
Fund strategies, performance and holdings are detailed in financial reports,
which are sent to shareholders twice a year. For a free copy of the most recent
financial report, call 1-800-435-4000.
 
                                        7
<PAGE>   56
 
ORGANIZATION & MANAGEMENT
 
EACH FUND IS A NON-DIVERSIFIED MUTUAL FUND. Each Fund is a series of Schwab
Investments (the Trust).
 
THE FUNDS ARE OVERSEEN BY A BOARD OF TRUSTEES. The Board of Trustees meets
regularly to review each Fund's activities, contractual arrangements and
performance. The Board of Trustees is responsible for protecting the interests
of each Fund's shareholders.
 
THE FUNDS MAY HOLD SPECIAL MEETINGS. These meetings may be called for purposes
such as electing Trustees, changing fundamental policies and amending management
contracts. Shareholders are entitled to one vote for each share owned and may
vote by proxy or in person. Proxy materials will be mailed to shareholders prior
to any meetings, and will include a voting card and information explaining the
matters to be voted upon.
 
THE FUNDS ARE MANAGED BY THE INVESTMENT MANAGER. The Investment Manager is
responsible for managing each Fund's day-to-day business affairs, including
picking each Fund's investments; although the Investment Manager is subject to
the overall authority of the Board of Trustees.
 
   
Joanne Larkin is a Vice President of the Investment Manager and Senior Portfolio
Manager for the Funds. Ms. Larkin has primary responsibility for the day-to-day
portfolio management of each Fund, and has since each Fund commenced operation.
Prior to February 1992, Ms. Larkin was portfolio manager for the Shearson Lehman
California Municipal Bond Fund and E.F. Hutton's Municipal Cash Reserve
Management. Ms. Larkin graduated from Rosemont College with a Bachelor of Arts
in Sociology.
    
 
Stephen B. Ward is the Trust's Senior Vice President and Chief Investment
Officer. Mr. Ward has overall responsibility for the portfolio management of the
Funds. Mr. Ward joined the Investment Manager as Vice President and Portfolio
Manager in April 1991 and was promoted to his current position in August 1993.
Prior to joining the Investment Manager, Mr. Ward was Vice President and
Portfolio Manager at Federated Investors. Mr. Ward graduated with a Masters of
Business Administration from the Wharton School and a Bachelor of Arts in
Economics from Virginia Tech, and has been a Chartered Financial Analyst since
1985.
 
For the services performed under its contract with each Fund, the Investment
Manager is entitled to receive an annual fee, payable monthly from each Fund.
 
   
For the fiscal year ended August 31, 1998, the Short/Intermediate Tax-Free Fund
and the Long- Term Tax-Free Fund paid the Investment Manager investment
management fees of 0.05% and 0.04%, respectively, of each Fund's daily net
assets.
    
 
SCHWAB IS THE FUNDS' SHAREHOLDER SERVICES AND TRANSFER AGENT. Schwab provides
Fund information to shareholders, including share price, reporting shareholder
ownership and account activities and distributing the Fund's prospectuses,
financial reports and other informational literature about the Funds. Schwab
also
                                        8
<PAGE>   57
 
maintains the office space, equipment and personnel necessary to provide these
services. Schwab also distributes and markets SchwabFunds and provides other
services.
 
For the services performed as transfer agent under its contract with each Fund,
Schwab is entitled to receive annual fees from the Funds. The fees are payable
monthly in the amount of 0.05% of each Fund's average daily net assets. For the
services performed as shareholder services agent under its contract with the
funds, Schwab is entitled to receive annual fees from the Funds. The fees are
payable monthly in the amount of 0.20% of the average daily net assets of the
Funds.
 
   
THE FUNDS PAY OTHER EXPENSES. These expenses are typically connected with the
Trust's operations and include legal, audit and custodian fees, as well as the
costs of accounting and registration of the Funds. Expenses not directly
attributable to a particular Fund will be allocated equitable among the Funds in
the Trust.
    
 
   
For the fiscal year ended August 31, 1998, the Short/Intermediate Tax-Free Fund
and the Long-Term Tax-Free Fund, respectively, paid total operating expenses in
the amount of 0.49% of each Fund's average daily net assets.
    
 
The Charles Schwab Corporation is the parent company of the Investment Manager
and Schwab. Charles R. Schwab is the founder, Chairman, Co-Chief Executive
Officer and Director of The Charles Schwab Corporation. As a result of his
ownership of and interests in The Charles Schwab Corporation, Mr. Schwab may be
deemed to be a controlling person of the Investment Manager and Schwab.
 
                                        9
<PAGE>   58
 
INVESTMENT OBJECTIVES, POLICIES & RISKS
 
INVESTMENT OBJECTIVES
Each Fund's investment objective is to seek a high level of current income that
is exempt from federal income tax, consistent with preservation of capital.
 
Each Fund's investment objective may be changed only by vote of a majority of a
Fund's shareholders. Unless otherwise noted, policies and limitations may be
changed without shareholder approval.
 
INVESTMENT STRATEGIES
Each Fund intends to achieve its objective by investing in investment-grade
municipal securities. Each Fund will normally invest at least 80% of its total
assets in these securities.
 
THE MATURITY of a security generally determines its sensitivity to interest rate
changes. In general, the longer the maturity, the more sensitive the security
will be to interest rate changes. For example, money market securities are
high-quality, short-term debt securities that reflect short-term interest rates
and normally carry little risk of fluctuation of principal value.
 
The Short/Intermediate Tax-Free Fund is designed to provide higher yields than a
tax-free money market fund by investing in investment-grade, short- and
intermediate-term municipal securities that carry more risk of fluctuation of
principal. The Short/ Intermediate Tax-Free Fund will normally seek to maintain
a DWAM of between two and five years.
 
The Long-Term Tax-Free Fund is designed to provide even higher yields by
investing in investment-grade, long-term municipal securities that carry an even
higher risk of fluctuation of principal value. The Long-Term Tax-Free Fund will
normally expect to maintain a DWAM of at least ten years.
 
Either Fund may invest in securities of any maturity.
 
THE RISKS for each Fund are basically those risks associated with investing in
debt securities, although each risk factor may be intensified by the Funds'
concentrated investments in municipal securities.
 
Generally speaking, there are four types of risk attendant to investing in debt
securities.
 
INTEREST RATE RISK is the potential for fluctuations in bond prices due to
changing interest rates. A fund's DWAM is an important factor to consider when
determining interest rate risk. This is because DWAM is a measure of a Fund's
maturity and maturity generally determines a Fund's sensitivity to changes in
interest rates.
 
INCOME RISK is the potential for a decline in income due to falling interest
rates.
 
CREDIT RISK is the possibility that a bond issuer will fail to make timely
payments of either interest or principal.
 
PREPAYMENT RISK or CALL RISK is the likelihood that, during periods of falling
interest rates, bonds will be prepaid (or "called") prior to maturity, requiring
the proceeds to be invested at a generally lower interest rate.
 
                                       10
<PAGE>   59
 
   
The amount of each type of risk each Fund will be subject to will depend on its
portfolio of investments. Because the Funds invest substantially in municipal
securities, they are expected to face income, credit and interest rate risks,
although the Long Term Tax-Free Fund will face greater interest rate risks as a
result of its longer DWAM. Prepayment or call risks are not predominant risk
factors for most municipal securities.
    
 
OTHER RISKS
An issue with the potential to disrupt fund operations and affect performance is
the inability of some computers to recognize the year 2000.
 
   
The Investment Manager is taking steps to enable its systems to handle this
change and is seeking assurances that its service providers and business
partners are taking similar steps as well. However, it is impossible to know in
advance exactly how this issue will affect fund administration, fund performance
or securities markets in general.
    
 
PRINCIPAL SECURITIES AND INVESTMENT TECHNIQUES
The different types of securities in which the Funds may invest are described
below.
 
DEBT SECURITIES are obligations, issued by various entities, including
governments and corporations, in order to raise money. They are basically
"IOUs," but are commonly referred to as bonds. Bonds normally require the issuer
to pay a fixed, variable or floating rate of interest on the amount of money
borrowed (the "principal") until it is paid back (at "maturity"). Upon maturity,
the principal must be repaid.
 
Debt securities experience price changes when interest rates change. Generally,
when interest rates rise, bond prices decline or "fall", and when interest rates
fall bond prices rise. Typically, longer-maturity bonds react to interest rate
changes more severely than shorter-term bonds (all else being equal) but
generally offer a greater rate of interest. Debt securities also are subject to
the risk that their issuer will fail to meet its obligation to pay interest
and/or principal, and their prices also may be affected by the credit quality of
their issuer.
 
Investment-grade debt securities are medium- and high-quality securities,
although some still possess varying degrees of speculative characteristics and
risk.
 
MUNICIPAL SECURITIES are debt securities issued by or on behalf of a state,
including its counties, municipalities, authorities and other subdivisions, or
the territories and possessions of the United States and the District of
Columbia, including their subdivisions, agencies and instrumentalities. These
securities are issued to raise money for various public purposes or private
activities such as general financing for state and local governments or
financing for specific projects or facilities.
 
Municipal securities pay fixed, variable or floating rates of interest, which
also is meant to be exempt from federal income tax, and, typically, personal
income tax of a state or locality. Municipal securities may be owned
                                       11
<PAGE>   60
 
directly or through participation interests, and include general obligation or
revenue securities, anticipation notes and municipal leases.
 
The value of municipal securities may be affected by legislation or litigation
involving the taxation of municipal securities or the rights of holders of
municipal securities. In addition, some municipal securities involve private
entities, and the value of these securities could be affected by the credit
quality of the private entity and possibly by the circumstances affecting the
project.
 
Restriction: Each Fund will normally invest at least more than 80% of its total
assets in municipal securities the interest on which is free from federal income
tax including federal alternative minimum tax. This policy may be changed only
by shareholders. Each Fund also may invest more than 25% in municipal securities
financing similar projects.
 
CREDIT AND LIQUIDITY SUPPORTS may be employed by issuers to reduce the credit
risk of their securities. Credit supports include letters of credit, insurance
and guarantees provided by foreign and domestic entities and municipal
securities are sometimes issued with moral obligations, which are a type of
credit support. Liquidity supports include puts and demand features. Credit and
liquidity supports move the credit risk of an investment from the issuer of the
security to the support provider. Changes in the credit quality of a support
provider could cause losses to a fund, and affect its share price. In addition,
credit and liquidity supports provided by foreign entities may involve more risk
because of the possibility of adverse foreign economic, political and legal
developments.
 
   
VARIABLE AND FLOATING RATE SECURITIES pay an interest rate, which is adjusted
either periodically or at specific intervals or floats continuously according to
a formula or benchmark. Although these securities generally are intended to
minimize the fluctuations in value that occur when interest rates rise and fall,
some securities may be linked to a benchmark in such a way as to cause greater
volatility to the security's value.
    
 
PUTS are agreements that allow the buyer to sell a security at a specified price
and time to the seller or "put provider." When a Fund buys a put, losses could
occur as a result of the costs of the put or if the put provider does not
perform as agreed. Losses could result to a Fund (as a put provider), if the
buyer exercises its rights under the put. Standby commitments and demand
features are types of puts.
 
   
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES are securities that are purchased
but are to be delivered to the buyer at a later than customary date, price and
yield. Generally, the purchaser does not pay for these securities or earn
interest on them until they are delivered, but their value could change prior to
delivery.
    
 
ILLIQUID SECURITIES are securities which are not actively traded or are subject
to legal restrictions and, therefore, may be difficult to sell quickly or
without losses.
 
                                       12
<PAGE>   61
 
   
Restriction: Each Fund will not invest more than 10% of its net assets in
Illiquid Securities.
    
 
SECURITIES OF OTHER INVESTMENT COMPANIES may be purchased by a Fund. These
investments will cause a Fund to bear duplicative fees for certain services.
 
MUNICIPAL MONEY MARKET SECURITIES are high quality, short-term debt securities
issued by state and local governments, including municipalities, and other
entities.
 
The Funds also may employ the policies described below.
 
DIVERSIFICATION involves investing in a wide range of securities and, thereby,
spreading and reducing the risks of investment. Non-diversified mutual funds are
more sensitive to changes that affect a single security.
 
Restriction: Each Fund is a non-diversified mutual fund. In order to meet
federal tax requirements, each Fund will not invest more than 25% of its total
assets in the securities of a single issuer, and, with respect to 50% of its
total assets, will not invest more than 5% in a single issuer. This limitation
does not apply to U.S. Government Securities.
 
BORROWING is a form of leveraging if a Fund continues to make investments while
borrowings remain outstanding. Borrowing subjects a Fund to interest costs,
which may exceed the interest received on the securities purchased with the
borrowed funds.
 
Restriction: Each Fund may borrow up to 33 1/3% of its total assets for
temporary or emergency purposes; provided that neither Fund will purchase
securities while borrowings represent more than 5% of its total assets. This
policy may be changed only by shareholders.
 
LENDING securities may earn income for a Fund, but could result in losses to the
Fund, and possibly affect share price.
 
TEMPORARY INVESTMENTS in U.S. Government securities, money market securities,
repurchase agreements and other taxable securities may be made by each Fund as a
defensive measure or under abnormal market conditions.
 
                                       13
<PAGE>   62
 
INVESTING IN SHARES
 
BUSINESS DAYS
The Funds are open each day the New York Stock Exchange (NYSE) is open (business
days).
 
NET ASSET VALUE
   
The price of each share of each Fund is its net asset value per share (NAV). NAV
is determined each business day after the close of the NYSE, generally 4:00 p.m.
Eastern time. NAV is calculated by adding the value of each Fund's assets,
subtracting its liabilities and dividing the result by the number of outstanding
shares. Each Fund's NAV will fluctuate and neither Fund is insured against loss
in its NAV.
    
 
Each Fund values its portfolio securities based on market quotes if they are
readily available. If market quotes are not readily available, portfolio
securities are assigned fair market values pursuant to guidelines adopted by the
Board of Trustees.
 
MINIMUM INVESTMENTS
 
<TABLE>
<S>                                 <C>
INITIAL INVESTMENT................  $1,000
for custodial accounts............  $  500
ADDITIONAL SHARES.................  $  100
MINIMUM BALANCE*..................  $  500
for custodial accounts:...........  $  250
</TABLE>
 
* Your shares may be automatically redeemed if, as a result of selling or
  exchanging shares, you no longer meet a Fund's minimum balance requirements.
  You will be given 30 days' notice prior to redemption to increase your
  holdings to the required minimum balance.
 
These minimums may not be applicable to certain customers of Schwab
Institutional's Services for Investment Managers or Schwab's Retirement Plan
Services. These minimums may be different if you are buying, selling/exchanging
or maintaining shares of a Fund through an entity other than Schwab.
 
HOW TO BUY, SELL OR EXCHANGE SHARES
Shares may be purchased, sold or exchanged through an account at Schwab or with
any other entity designated by Schwab. The following information on how to buy,
sell and exchange shares is for transactions through an account at Schwab.
 
Shares are purchased, sold or exchanged at the NAV next determined after your
order has been received in good order. Orders received in good order by Schwab
prior to 4:00 p.m. Eastern time will be executed that day. Shares bought
normally begin to earn dividends, if any, on the next business day, while shares
sold or exchanged normally earn dividends, if any, on that day.
 
BY TELEPHONE. Call 1-800-435-4000, 24 hours a day (1-800-345-2550 for TDD
users).
 
BY MAIL. Write to the Fund at 101 Montgomery Street, San Francisco, CA 94104.
 
ELECTRONICALLY. Visit Schwab's Web site at http://www.schwab.com/schwabfunds.
For more information about, StreetSmart(R), The Equalizer(R) and Telebroker(R),
call 1-800-435-4000.
 
                                       14
<PAGE>   63
 
Please provide the following information:
 
- -  your name and Schwab account number;
- -  the name of your Fund;
- -  the dollar amount you would like to buy, sell or exchange; and
- -  for initial purchases only, one of the three distribution choices below:
 
   AUTOMATIC REINVESTMENT. Dividends and capital gain distributions will be
   reinvested in shares of your Fund. If you do not choose an option, this
   option will be assigned to you and all distributions will be reinvested;
 
   CASH OPTION. All distributions will be paid to your Schwab account and, if
   requested, mailed to you the next business day; or
 
   CASH DIVIDENDS/REINVESTED CAPITAL GAINS. Dividends will be paid to you in
   cash and any capital gains distributions will be reinvested in additional
   shares.
 
- -  for exchanges only, the name of Fund and class, if applicable, into which you
   would like to exchange and a distribution choice; and
- -  if selling or exchanging by mail, a signature of at least one of the persons
   named on your Schwab account.
 
PLEASE NOTE THE FOLLOWING WHEN SELLING OR EXCHANGING SHARES OF THE FUNDS:
 
   
- -  redemption and exchange requests by mail are irrevocable and, once mailed,
   may not be modified or cancelled;
    
   
- -  payment for redeemed shares will be made to your Schwab account within 7
   days, and a check may be mailed to you upon request;
    
   
- -  a check for your shares will be issued on the business day following receipt
   and acceptance of your sale order, and will be mailed to you upon request;
    
   
- -  if you bought your shares by check, a check will be issued as soon as your
   check clears, which may take up to 15 days;
    
- -  depending on the type of Schwab account you have, your money may earn
   interest during any holding period;
   
- -  a fee may be charged for redemptions by wire;
    
   
- -  you may exchange your shares for shares of any other SchwabFund, provided you
   meet its minimum investment and any other requirements;
    
   
- -  an exchange of the Fund's shares of other SchwabFunds(R) will be treated as a
   taxable event for federal income tax purposes;
    
- -  the Funds and Schwab reserve the right to modify, limit or terminate the
   exchange privilege upon 60 days' written notification; and
- -  the Funds may suspend the right to sell shares or postpone payment for a sale
   of shares when trading on the NYSE is restricted, the NYSE is closed for any
   reason other than its customary weekend and holiday closings, emergency
   circumstances exist as determined by the SEC or as otherwise permitted by the
   SEC.
 
                                       15
<PAGE>   64
 
   
OPENING A SCHWAB ACCOUNT
    
Schwab was established in 1971 and is one of America's largest discount brokers.
Schwab helps over 5 million customers make investment decisions by offering them
low cost brokerage services and providing them with financial products and
information. Visit one of Schwab's 270 branch offices or Schwab's Web site
(http://www.schwab.com/schwabfunds) for information on investment products and
services.
 
Investors may open a Schwab account by simply completing an application,
although institutional investors should contact Schwab to find out if any
additional forms need to be completed.
 
Using a Schwab account, investors have access to investments other than just
mutual funds, such as stocks and bonds. The Securities Investor Protection
Corporation (SIPC) provides account protection of up to $500,000 for the
securities held in a Schwab account, including shares of the Funds. It is
important to remember that SIPC insurance does not protect against losses due to
market or economic conditions.
 
Schwab offers different types of accounts with varying account opening and
balance requirements designed to fit the needs of a variety of investors.
Contact Schwab for more information and read your account agreement and
application for specific account details, including minimum initial investment
and balance requirements and fees. Contact Schwab for instructions and any
applicable fees if you would like to wire money from your Schwab account.
 
Deposits may be made to Schwab accounts by check, wire and other forms of
electronic funds transfer. Securities also may be deposited. All checks should
be made out to Charles Schwab & Co., Inc. Schwab will charge a $15 service fee
for any checks returned as a result of insufficient or uncollected funds or a
stop order. Monies received by Schwab before 4:00 p.m. Eastern time will be
available for investment in the Fund that day. Monies received by Schwab after
4:00 p.m. Eastern time will be available for investment in the Fund the next
business day.
 
SCHWAB AUTOMATIC INVESTMENT PLAN. Schwab's Automatic Investment Plan ("AIP")
allows you to make periodic investments in non-money market SchwabFunds(R) (and
certain other funds available through Schwab) automatically and conveniently.
You can make automatic investments in any amount, from $100 to $50,000, once you
meet a Fund's investment minimum. Automatic investments are made from your
Schwab account: using cash, Sweep Shares of a Schwab Money Fund; or the Schwab
MoneyLink(R) Transfer Service. As long as you are purchasing a Fund's shares
through AIP, distributions paid to you by the Fund must be reinvested in
additional shares of that Fund. For more detailed information about this
service, or to establish your AIP, call 1-800-435-4000, 24 hours a day.
 
                                       16
<PAGE>   65
 
DIVIDENDS & TAXES
   
Each business day each Fund's net investment income is determined at the close
of the NYSE and declared as a dividend to shareholders of record. Net investment
income is calculated by subtracting each Fund's expenses from the income earned
on its investments that day. Dividends are declared each business day based on
the net investment income determined and are paid on the 25th of each month, if
it is a business day, except in December when dividends are paid on the last
business day of the month. If the 25th is not a business day, dividends are paid
on the next business day. The following is only a brief summary of some of the
federal and state income tax consequences that may affect each Fund and its
shareholders. You should consider the tax implications of investing, and consult
with your own tax adviser.
    
 
Each Fund will distribute its net investment income and capital gains, if any,
to shareholders each year. Dividends that are derived from exempt-interest
income will be exempt from federal income tax when distributed to shareholders.
Some distributions received by shareholders may be subject to federal or state
and/or local income taxes. For example, distributions derived from the gain on
the sale of tax-free bonds is typically subject to federal income tax. To the
extent distributions are subject to federal or state and/or local income taxes,
they are taxable when paid, whether received in cash or reinvested, although
distributions declared in December, but paid in January, are taxable as if they
were paid on December 31.
 
The interest from some municipal securities is subject to the federal
alternative minimum tax. Each Fund may invest up to 20% of its total assets in
these securities; provided that the total income earned on these securities does
not exceed 20% of the total income earned by the Fund. Shareholders subject to
federal alternative minimum tax must take this interest into account in
computing their federal alternative minimum tax liability.
 
Shareholders receive a record of all distributions by a Fund, as well as
purchases and sales they have made, via their monthly Schwab account statement.
Each year, the Funds notify shareholders of all distributions made by the Funds
that year, including the federal income tax consequences of the distributions.
 
GENERAL INFORMATION
As long as either Fund or Schwab follows reasonable procedures to confirm that
your telephone order is genuine, they will not be liable for any losses an
investor may experience due to unauthorized or fraudulent instructions.
 
These procedures may include:
- -  requiring a form of personal identification before acting upon any telephone
   order;
- -  providing written confirmation of telephone orders; and
- -  tape recording all telephone orders.
 
                                       17
<PAGE>   66
 
It may be difficult to place orders by telephone during periods of drastic
economic or market changes because Schwab's phone lines may become very busy
with calls from other investors. Consider other methods for placing an order,
such as writing to the Funds.
 
Share certificates will not be issued in order to avoid additional
administrative costs, however, share ownership records are maintained by Schwab.
Twice a year, financial reports will be mailed to shareholders describing each
Fund's performance and investment holdings. In order to reduce these mailing
costs, each household will receive one consolidated mailing. If you do not want
to receive consolidated mailings, you may write to your Fund and request that
your mailings not be consolidated.
 
Each Fund, in its sole discretion and without prior notice, reserves the right
to reject orders to purchase shares, change minimum investment requirements or
withdraw or suspend any part of the offering made by the prospectus.
 
- ---------------------------------------------------
 
NO ONE HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY STATEMENTS
ABOUT THIS OFFERING OTHER THAN THE INFORMATION CONTAINED IN THIS PROSPECTUS AND
IN OFFICIAL SALES MATERIALS. IF ANYONE GIVES ANY OTHER INFORMATION OR MAKES ANY
OTHER REPRESENTATIONS, DO NOT RELY ON SUCH INFORMATION OR REPRESENTATIONS.
- ---------------------------------------------------
 
THIS PROSPECTUS IS NOT AN OFFER IN ANY STATE IN WHICH SUCH AN OFFER MAY NOT
LAWFULLY BE MADE, NOR IS IT AN OFFER TO ANY PERSON TO WHOM SUCH AN OFFER MAY NOT
BE MADE.
- ---------------------------------------------------
 
                                       18
<PAGE>   67
 
              THIS SPACE RESERVED FOR YOUR COMMENTS AND QUESTIONS.
              A SCHWAB REPRESENTATIVE WILL BE HAPPY TO ASSIST YOU.
<PAGE>   68
SCHWABFUNDS(R)
- -----------

PROSPECTUS
NOVEMBER 4, 1998 


SCHWAB TAX-FREE BOND FUNDS

- ----------------
   BULK RATE
 U.S. POSTAGE
     PAID
CHARLES SCHWAB
- ----------------

SCHWABFUNDS(R)
101 MONTGOMERY STREET
SAN FRANCISCO, CA  94104

921-8 (11-98) Printed on recycled paper.

<PAGE>   69
                                     PART B
                               SCHWAB INVESTMENTS
                              CROSS REFERENCE SHEET
                                       FOR
                    SCHWAB SHORT-TERM BOND MARKET INDEX FUND
                       SCHWAB TOTAL BOND MARKET INDEX FUND


<TABLE>
<CAPTION>
Part B Item                                    Statement of Additional Information Caption
- -----------                                    -------------------------------------------
<S>                                            <C>
10.      Cover Page                            Cover Page

11.      Table of Contents                     Table of Contents

12.      General Information and History       General Information

13.      Investment Objectives and Policies    Investment Securities; Investment
                                               Restrictions

14.      Management of the Fund                Management of the Trust

15.      Control Persons and Principal         General Information
         Holders of Securities

16.      Investment Advisory and Other         Management of the Trust
         Services

17.      Brokerage Allocation and Other        Portfolio Transactions and Turnover
         Practices

18.      Capital Stock and Other Securities    General Information

19.      Purchase, Redemption and Pricing of   Share Price Calculation;
         Securities Being Offered              Purchase and Redemption of Shares

20.      Tax Status                            Taxes

21.      Underwriters                          Management of the Trust

22.      Calculation of Performance Data       Total Return and Yield

23.      Financial Statements                  Financial Statements
</TABLE>
<PAGE>   70
                       STATEMENT OF ADDITIONAL INFORMATION

                               SCHWAB INVESTMENTS
                    Schwab Short-Term Bond Market Index Fund
                       Schwab Total Bond Market Index Fund
                 101 Montgomery Street, San Francisco, CA 94104

   
                               November 4, 1998

         This Statement of Additional Information ("SAI") is not a prospectus.
It should be read in conjunction with the Prospectus, which may be amended from
time to time, dated November 4, 1998, for Schwab Short-Term Bond Market Index
Fund ("Short Bond Fund") and Schwab Total Bond Market Index Fund ("Total Bond
Fund") (each a "Fund" and, collectively, the "Funds") of Schwab Investments (the
"Trust").
    

   
         Prior to November 1, 1997, Short Bond Fund was named Schwab
Short/Intermediate Government Bond Fund and Total Bond Fund was named Schwab
Long-Term Government Bond Fund.
    

   
         To obtain a copy of any of the Prospectus, please contact Charles
Schwab & Co., Inc. ("Schwab") at 800-435-4000, 24 hours a day or 101 Montgomery
Street, San Francisco, California 94104. TDD users may contact Schwab at
800-345-2550, 24 hours a day. The Prospectus also may be available
electronically by using our Web site address:
http://www.schwab.com/schwabfunds.
    

                                 SCHWABFunds(R)
                                  800-435-4000

                                TABLE OF CONTENTS
   
<TABLE>
<CAPTION>
                                                                                Page


<S>                                                                             <C>
INVESTMENT SECURITIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
INVESTMENT RESTRICTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MANAGEMENT OF THE TRUST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PORTFOLIO TRANSACTIONS AND TURNOVER. . . . . . . . . . . . . . . . . . . . . . . 20
TAXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SHARE PRICE CALCULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
TOTAL RETURN AND YIELD. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
GENERAL INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PURCHASE AND REDEMPTION OF SHARES. . . . . . . . . . . . . . . . . . . . . . . . 28
OTHER INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
APPENDIX - RATINGS OF INVESTMENT SECURITIES. . . . . . . . . . . . . . . . . . . 30
</TABLE>
    
                                       1
<PAGE>   71
                              INVESTMENT SECURITIES

                           U.S. GOVERNMENT SECURITIES

         Direct obligations of the U.S. Government are supported by the full
faith and credit of the U.S. Treasury. While obligations of certain U.S.
Government agencies and instrumentalities are similarly backed, those of others,
such as the Federal National Mortgage Association and the Student Loan Marketing
Association, are only supported by the right of the issuer to borrow from the
U.S. Treasury, the discretionary authority of the U.S. Government to purchase
the agency's obligations or the credit of the issuing agency or instrumentality.
There can be no assurance that the U.S. Government would provide financial
support to U.S. Government sponsored agencies or instrumentalities if it were
not obligated to do so by law. A Fund will invest in U.S. Government securities
not backed by the full faith and credit of the U.S. Treasury only when Charles
Schwab Investment Management, Inc. (the "Investment Manager") is satisfied that
the credit risk with respect to their issuer is minimal.

   
               U.S. Government Agency Mortgage-Backed Securities
    

   
           U.S. Government Agency mortgage-backed securities are among the
investment securities in which the Funds may invest. Mortgages backing the
securities purchased by the Funds include, among others, conventional 30-year
fixed rate mortgages, graduated payment mortgages, 15-year mortgages and
adjustable rate mortgages. All of these mortgages can be used to create
pass-through securities. A pass-through security is formed when mortgages are
pooled together and undivided interests in the pool or pools are sold. The cash
flow from the mortgages is passed through to the holders of the securities in
the form of periodic payments of interest, principal and prepayments (net of a
service fee). Prepayments occur when the holder of an individual mortgage
prepays the remaining principal before the mortgage's scheduled maturity date.
As a result of the pass-through of prepayments of principal on the underlying
securities, mortgage-backed securities are often subject to more rapid
prepayment of principal than their stated maturity indicates. Because the
prepayment characteristics of the underlying mortgages vary, it is not possible
to predict accurately the realized yield or average life of a particular issue
of pass-through certificates. Prepayment rates are important because of their
effect on the yield and price of the securities. Accelerated prepayments
adversely impact yields for pass-throughs purchased at a premium (i.e., a price
in excess of principal amount) and may involve additional risk of loss of
principal because the premium may not be fully amortized at the time the
obligation is repaid. The opposite is true for pass-throughs purchased at a
discount. The Funds may purchase mortgage-related securities at a premium or
at a discount. Principal and interest payments on the mortgage-related
securities are guaranteed by the government to the extent described below. Such
guarantees do not extend to the value or yield of the mortgage-related
securities themselves or of a Fund's shares.
    

         GNMA Certificates. Certificates of the Government National Mortgage
Association ("GNMA") are mortgage securities which evidence an undivided
interest in a pool or pools of mortgages. GNMA Certificates that the Funds may
purchase are the "modified pass-through" type, which entitle the holder to
receive timely payment of all interest and principal payments due on the
mortgage pool, net of fees paid to the "issuer" and GNMA, regardless of whether
or not the mortgagor actually makes the payment.

         The National Housing Act authorized GNMA to guarantee the timely
payment of principal and interest on securities backed by a pool of mortgages
insured by the Federal Housing


                                       2
<PAGE>   72
Administration ("FHA") or guaranteed by the Veterans Administration ("VA"). The
GNMA guarantee is backed by the full faith and credit of the U.S. Government.
The GNMA is also empowered to borrow without limitation from the U.S. Treasury
if necessary to make any payments required under its guarantee.

         The average life of a GNMA Certificate is likely to be substantially
shorter than the original maturity of the mortgages underlying the securities.
Prepayments of principal by mortgagors and mortgage foreclosures will usually
result in the return of the greater part of principal investment long before the
maturity of the mortgages in the pool. Foreclosures impose no risk to principal
investment because of the GNMA guarantee, except to the extent that a Fund has
purchased the certificates above par in the secondary market.

         FHLMC Securities. The Federal Home Loan Mortgage Corporation ("FHLMC")
was created in 1970 to promote development of a nationwide secondary market in
conventional residential mortgages. The FHLMC issues two types of mortgage
pass-through securities ("FHLMC Certificates"): mortgage participation
certificates ("PCs") and guaranteed mortgage certificates ("GMCs"). PCs resemble
GNMA Certificates in that each PC represents a pro rata share of all interest
and principal payments made and owed on the underlying pool. The FHLMC
guarantees timely monthly payment of interest on PCs and the ultimate payment of
principal.

         GMCs also represent a pro rata interest in a pool of mortgages.
However, these instruments pay interest semi-annually and return principal once
a year in guaranteed minimum payments. The expected average life of these
securities is approximately 10 years. The FHLMC guarantee is not backed by the
full faith and credit of the U.S. Government.

         FNMA Securities. The Federal National Mortgage Association ("FNMA") was
established in 1938 to create a secondary market in mortgages the FHA insures.
FNMA issues guaranteed mortgage pass-through certificates ("FNMA Certificates").
FNMA Certificates resemble GNMA Certificates in that each FNMA Certificate
represents a pro rata share of all interest and principal payments made and owed
on the underlying pool. FNMA guarantees timely payment of interest and principal
on FNMA Certificates. The FNMA guarantee is not backed by the full faith and
credit of the U.S. Government.

                          OTHER ASSET-BACKED SECURITIES

   
         Certain Funds may invest a portion of their assets in debt obligations
known as "Asset-Backed Securities" that are rated in one of the four highest
rating categories by a nationally recognized statistical rating organization
(e.g., Standard & Poor's Corporation or Moody's Investors Service, Inc.) or, if
not so rated, deemed to be of equivalent quality by the Investment Manager
pursuant to guidelines adopted by the Board of Trustees. The credit quality of
most Asset-Backed Securities depends primarily on the credit quality of the
assets underlying such securities, how well the entity issuing the security is
insulated from the credit risk of the originator (or any other affiliated
entities) and the amount and quality of any credit support provided to the
securities. The rate of principal payments on Asset-Backed Securities generally
depends on the rate of principal payments received on the underlying assets,
which in turn may be affected by a variety of economic and other factors. As a
result, the yield on any Asset-Backed Security is difficult to predict with
precision, and actual yield to maturity may be more or less than the anticipated
yield to maturity. Asset-Backed Securities may be classified as "Pass-Through
Certificates" or "Collateralized Obligations."
    


                                       3
<PAGE>   73
         "Pass-Through Certificates" are Asset-Backed Securities that represent
undivided fractional ownership interests in the underlying pool of assets.
Pass-Through Certificates usually provide for payments of principal and interest
received to be passed through to their holders, usually after deduction for
certain costs and expenses incurred in administering the pool. Because
Pass-Through Certificates represent ownership interests in the underlying
assets, the holders thereof bear directly the risk of any defaults by the
obligors on the underlying assets not covered by any credit support.

         Asset-Backed Securities issued in the form of debt instruments, also
known as Collateralized Obligations, are generally issued as the debt of a
special purpose entity organized solely for the purpose of owning such assets
and issuing such debt. The assets collateralizing such Asset-Backed Securities
are pledged to a trustee or custodian for the benefit of the holders thereof.
Such issuers generally hold no assets other than those underlying the
Asset-Backed Securities and any credit support provided. As a result, although
payments on such Asset-Backed Securities are obligations of the issuers, in the
event of default on the underlying assets not covered by any credit support, the
issuing entities are unlikely to have sufficient assets to satisfy their
obligations on the related Asset-Backed Securities.

         Repayment of these securities is intended to be obtained from an
identified pool of assets, typically receivables related to a particular
industry, such as asset-backed securities related to credit card receivables,
automobile receivables, trade receivables or diversified financial assets. Based
on the primary characteristics of the various types of asset-backed securities,
for purposes of each Fund's concentration policy, each of the Funds has selected
the following asset-backed securities industries: Credit card receivables,
automobile receivables, trade receivables and diversified assets, and each Fund
will limit its investments in each such industry to less than 25% of its total
assets.

                        METHODS OF ALLOCATING CASH FLOWS

         While many Asset-Backed Securities are issued with only one class of
security, many others are issued in more than one class, each with different
payment terms. Multiple class Asset-Backed Securities are issued for two main
reasons. First, multiple classes may be used as a method of providing credit
support. This is typically accomplished by creating one or more classes with a
right to payments on the Asset-Backed Security that is subordinate to that of
the remaining class or classes. Second, multiple classes may permit the issuance
of securities with payment terms, interest rates or other characteristics that
differ both from those of each other and from those of the underlying assets.
Examples include so-called "multi-tranche CMOs" (collateralized mortgage
obligations) with serial maturities such that all principal payments received on
the mortgages underlying the securities are first paid to the class with the
earliest stated maturity, and then sequentially to the class with the next
stated maturity, "Strips" (Asset-Backed Securities that entitle the holder to
disproportionate interests with respect to the allocation of interest and
principal of the assets backing the security) and securities with a class or
classes having characteristics that mimic the characteristics of
non-Asset-Backed Securities, such as floating interest rates (i.e., interest
rates that adjust as a specified benchmark changes) or scheduled amortization of
principal.


                                       4
<PAGE>   74
                             TYPES OF CREDIT SUPPORT

         Asset-Backed Securities are often backed by a pool of assets
representing the obligations of a number of different parties. To lessen the
effect of failures by obligors on these underlying assets to make payments, such
securities may contain elements of credit support. Such credit support falls
into two classes: liquidity protection and protection against ultimate default
on the underlying assets. Liquidity protection refers to the provision of
advances, generally by the entity administering the pool of assets, to ensure
that scheduled payments on the underlying pool are made timely. Protection
against ultimate default ensures payment on at least a portion of the assets in
the pool. Such protection may be provided through guarantees, insurance policies
or letters of credit obtained from third parties, through various means of
structuring the transaction, or through a combination of such approaches.
Examples of Asset-Backed Securities with credit support that arises out of the
structure of the transaction include "senior-subordinated securities" (multiple
class Asset-Backed Securities with certain classes subordinate to other classes
as to the payment of principal thereon, so that defaults on the underlying
assets are borne first by the holders of the subordinated class) and
Asset-Backed Securities that have "reserve funds" (cash or investments,
sometimes funded from a portion of the initial payments on the underlying
assets, are held in reserve against future losses) or that have been
"overcollateralized" (the scheduled payments on, or the principal amount of, the
underlying assets substantially exceed that required to make payment on the
Asset-Backed Securities and pay any servicing or other fees). The degree of
credit support provided on each issue is generally based on historical
information respecting the level of credit risk associated with such payments.
Delinquency or loss in excess of that anticipated could adversely affect the
return on an investment in an Asset-Backed Security.

                        CREDIT CARD RECEIVABLE SECURITIES

         Certain Funds may invest in Asset-Backed Securities backed by
receivables from revolving credit card agreements ("Credit Card Receivable
Securities"). Most of the Credit Card Receivable Securities issued publicly to
date have been Pass-Through Certificates. In order to lengthen the maturity of
Credit Card Receivable Securities, most such securities provide for a fixed
period during which only interest payments on the underlying accounts are passed
through to the security holder and principal payments received on such accounts
are used to fund the transfer of additional credit card charges made on an
account to the pool of assets supporting the related Credit Card Receivable
Securities. The initial fixed period may usually be shortened upon the
occurrence of specified events that signal a potential deterioration in the
quality of the assets backing the security, such as the imposition of a cap on
interest rates. The ability of the issuer to extend the life of an issue of
Credit Card Receivable Securities thus depends upon the continued generation of
additional principal amounts in the underlying accounts during the initial
period and the non-occurrence of specified events. Competitive and general
economic factors could adversely affect the rate at which new receivables are
created in an account and conveyed to an issuer, shortening the expected
weighted average life of the related Credit Card Receivable Security, and
reducing its yield. An acceleration in cardholders' payment rates or any other
event that shortens the period during which additional credit card charges on an
account may be transferred to the pool of assets supporting the related Credit
Card Receivable Security could have a similar effect on the weighted average
life and yield.


                                       5
<PAGE>   75
         Credit card holders are entitled to the protection of a number of state
and federal consumer credit laws, many of which give such holders the right to
set off certain amounts against balances owed on the credit card, thereby
reducing amounts paid on accounts. In addition, unlike most other Asset-Backed
Securities, accounts are unsecured obligations of the cardholder.


  CORPORATE BONDS AND CALL RIGHTS ATTRIBUTABLE TO CORPORATE BOND SINKING FUNDS

   
         The Funds may invest in corporate bonds, which are debt instruments
issued by corporations or other similar non-governmental entities. All of the
Index Securities that the Funds invest in will be "investment grade securities,"
which are securities rated in the four highest rating categories of a nationally
recognized statistical ratings organization (NRSROs). Debt obligations rated in
the lowest of the top four ratings (i.e., "Baa" by Moody's) are considered to
have some speculative characteristics and are more sensitive to economic change
than higher rated securities. See the Appendix for a full description of the
various ratings assigned to these obligations by various NRSROs.
    

   
         At times, Index Securities (or the issuers thereof) that were of
investment grade quality when purchased will be subject to credit downgrades.
The effect of such a downgrade may be to make such a security no longer of
investment grade quality (e.g., where the credit rating assigned the security or
the issuer thereof by Moody's after the downgrade is no longer be BBB or
better). Securities of less-than investment grade quality are also known as
"high yield, high risk" securities, or "junk bonds" (herein, "High Yield
Securities"), and a description of the various ratings assigned to
below-investment grade securities is contained in the Appendix. High Yield
Securities are frequently issued by companies without long track records of
sales and earnings, or by those of questionable credit strength, and are more
speculative and volatile (though typically higher yielding) than investment
grade bonds. If an investment grade bond is downgraded to below investment
grade, the Fund is not obligated to sell the security. Instead, the Investment
Manager will reanalyze the security in light of the down-grade and determine
whether it is appropriate to continue holding the security.
    

   
         The Investment Manager may also elect to purchase High Yield Securities
for either Fund, subject to an aggregate limit of 5% of the investing Fund's
assets and only in circumstances where the Investment Manager believes that the
credit quality of the security (or issuer thereof) is reasonably likely to be
upgraded to investment grade in the foreseeable future. If such an upgrade were
to occur under these circumstances, the value of the security would likely
increase, thereby raising the potential for the investing Fund to realize a gain
on its investment and/or track the performance of its Index. There is no
guarantee that any such upgrade will occur, however, and all such High Yield
Securities are subject to the risks, described in more detail below, associated
with non-investment grade instruments. In order to limit the Funds' exposure in
this regard, the Investment Manager will not purchase for the Funds High Yield
Securities that are rated (at the time of purchase) below B or equivalent by
Moody's or S&P. In addition, if a High Yield Security that is held by either
Fund is downgraded to below B or equivalent by Moody's or S&P, the Investment
Manager will promptly dispose of the security.
    

   
         Corporate bonds are subject to certain risks to which U.S. Government
securities are exposed and generally have a higher credit risk and higher
interest rate. Corporate bonds are backed only by the obligation and ability of
the corporation to pay principal and interest whereas U.S. Government securities
are backed either by the U.S. Treasury's obligation or the issuing
    

                                        6
<PAGE>   76
   
agency or instrumentality. The Investment Manager will invest in a corporate
bond issue to track a Fund's underlying index or when it determines that the
return or other features of the bond justify exposing a Fund to the risks
associated with that bond.
    

   
         High Yield Securities. Securities rated below investment grade are
often referred to as "junk bonds." Fixed income securities are subject to the
risk of an issuer's ability to meet principal and interest payments on the
obligation (credit risk), and may also be subject to price volatility due to
such factors as interest rate sensitivity, market perception of the
creditworthiness of the issuer and general market liquidity (market risk). Lower
rated or unrated (i.e., high yield) securities ("High Yield Securities") are
more likely to react to developments affecting market and credit risk than are
more highly rated securities, which primarily react to movements in the general
level of interest rates. The market values of fixed-income securities tend to
vary inversely with the level of interest rates. Yields and market values of
High Yield Securities will fluctuate over time, reflecting not only changing
interest rates but the market's perception of credit quality and the outlook for
economic growth. When economic conditions appear to be deteriorating, medium to
lower rated securities may decline in value due to heightened concern over
credit quality, regardless of prevailing interest rates. Investors should
carefully consider the relative risks of investing in High Yield Securities and
understand that such securities are not generally meant for short-term
investing.
    

   
         The high yield market is relatively new and its growth has paralleled a
long period of economic expansion and an increase in merger, acquisition and
leveraged buyout activity. Adverse economic developments can disrupt the market
for High Yield Securities, and severely affect the ability of issuers,
especially highly leveraged issuers, to service their debt obligations or to
repay their obligations upon maturity which may lead to a higher incidence of
default on such securities. In addition, the secondary market for High Yield
Securities at times may not be as liquid as the secondary market for more highly
rated securities. As a result, the Fund's adviser could find it more difficult
to sell these securities or may be able to sell the securities only at prices
lower than if such securities were widely traded. Furthermore, the Fund may
experience difficulty in valuing certain securities at certain times because,
among other reasons, the secondary market for High Yield Securities may not be
as liquid as the secondary market for more highly rated securities. Prices
realized upon the sale of such lower rated or unrated securities, under these
circumstances, may be less than the prices used in calculating the Fund's net
asset value.
    

   
         Prices for High Yield Securities may be affected by legislative and
regulatory developments. These laws could adversely affect the Fund's net asset
value and investment practices, the secondary market value for High Yield
Securities, the financial condition of issuers of these securities and the value
of outstanding High Yield Securities.
    

   
         Similar to higher rated securities, lower rated or unrated debt
obligations also present risks based on payment expectations. If an issuer calls
the obligations for redemption, the Fund may have to replace the security with a
lower yielding security, resulting in a decreased return for investors. If the
Fund experiences unexpected net redemptions, it may be forced to sell its higher
rated securities, resulting in a decline in the overall credit quality of the
Fund's investment portfolio and increasing the exposure of the Fund to the risks
of High Yield Securities. Credit quality in the High Yield Securities market can
change suddenly and unexpectedly, and even recently issued credit ratings may
not fully reflect the actual risks imposed by a particular security.
    



                                       7
<PAGE>   77
         International (Dollar-Denominated) Bonds. The Funds may invest in
certain obligations or securities of foreign issuers, including Eurodollar
Bonds, which are U.S. dollar denominated bonds issued by foreign issuers payable
in Eurodollars (U.S. dollars held in banks located outside the United States,
primarily Europe), Yankee Bonds, which are U.S. dollar-denominated bonds issued
in the U.S. by foreign banks and corporations, and EuroBonds, which are bonds
denominated in U.S. dollars and usually issued by large underwriting groups
composed of banks and issuing houses from many countries. Investments in
securities issued by foreign issuers, including American Depository Receipts and
securities purchased on foreign securities exchanges, may subject a Fund to
additional investment risks, such as adverse political and economic
developments, possible seizure, nationalization or expropriation of foreign
investments, less stringent disclosure requirements, non-U.S.
withholding taxes and the adoption of other foreign governmental restrictions.

         Additional risks include less publicly available information, the risk
that companies may not be subject to the accounting, auditing and financial
reporting standards and requirements of U.S. companies, the risk that foreign
securities markets may have less volume and therefore may be less liquid and
their prices more volatile than U.S. securities, and the risk that custodian and
transaction costs may be higher. Foreign issuers of securities or obligations
are often subject to accounting treatment and engage in business practices
different from those respecting domestic issuers of similar securities or
obligations. Foreign branches of U.S. banks and foreign banks may be subject to
less stringent reserve requirements than those applicable to domestic branches
of U.S. banks.

   
         Bond Substitution Strategy. This is a strategy whereby each Fund may,
from time to time, substitute one type of investment-grade bond for another.
This means that, as an example, a Fund may hold more corporate bonds and fewer
U.S. Treasury securities than its Index in order to increase income. This
particular bond substitution - a corporate bond substitution -- may increase the
Fund's credit risk, although this may be mitigated through increased
diversification in the corporate sector of the bond market.
    

         Each Fund will restrict its corporate bond substitutions to issues with
less than 4 years remaining to maturity, and in the aggregate to no more than
15% of its net assets.

         Sinking Fund Risks. Bonds typically carry a contract that describes the
rights of a bondholder until the bond's maturity. Within the contract an issuer
may include a provision describing the issuer's establishment of a sinking fund.
A sinking fund is the issuer's commitment to set aside a certain amount of money
in a sinking fund to cover timely repayment of a bondholder's principal raised
by a bond issuance. By creating a sinking fund, the issuer is able to spread
repayment of principal to numerous bondholders while reducing reliance on its
then current cash flows. A sinking fund also may allow the issuer to annually
repurchase certain of its outstanding bonds from the open market or repurchase
certain of its bonds at a call price named in a sinking fund provision. This
call provision will allow bonds to be prepaid or called prior to a bond's
maturity. The likelihood of such to occur is during periods of falling interest
rates.

                CERTIFICATES OF DEPOSIT AND BANKER'S ACCEPTANCES


                                       8
<PAGE>   78
         Certificates of deposit are certificates issued against funds deposited
in a banking institution for a specified period of time at a specified interest
rate. Bankers' acceptances are credit instruments evidencing a bank's obligation
to pay a draft drawn on it by a customer. These instruments reflect the
obligation both of the bank and of the drawer to pay the full amount of the
instrument upon maturity. Certain Funds will invest only in certificates of
deposit and bankers' acceptances of banks that have capital, surplus and
undivided profits in excess of $100 million.

                                Commercial Paper

   
         Commercial paper consists of short-term, unsecured promissory notes
issued to finance short-term credit needs. The Funds will only invest in
commercial paper that at the time of purchase is rated Prime-1 or Prime-2 by
Moody's, A-1+, A-1 or A-2 by S&P, "Duff 2" or higher by Duff & Phelps Credit
Rating Co. ("Duff"), or "F2" or higher by Fitch or if unrated by Moody's, S&P,
Duff or Fitch, is determined by the Investment Manager, using guidelines
approved by the Board of Trustees, to be at least equal in quality to one or
more of the above ratings.
    

                              REPURCHASE AGREEMENTS

         Repurchase agreements are instruments under which a buyer acquires
ownership of a security from a seller that agrees to repurchase the security at
a mutually agreed upon time and price (which price is higher than the purchase
price), thereby determining the yield during the buyer's holding period. Under
the Investment Company Act of 1940, as amended (the "1940 Act"), a repurchase
agreement is deemed to be a Fund's loan of money to the seller, collateralized
by the underlying security. The interest rate is effective for the period of
time in which the Funds are invested in the agreement and is not related to the
coupon rate on the underlying security. Any repurchase agreements a Fund enters
into will involve the Fund as the buyer and banks or broker-dealers as sellers
(repurchase agreements with broker-dealers will be limited to obligations of the
U.S. Government or its agencies or instrumentalities). The period of these
repurchase agreements will be usually short--from overnight to one week--and at
no time will the Funds invest in repurchase agreements for more than one year.
However, securities subject to repurchase agreements may have maturity dates in
excess of one year from the effective date of the repurchase agreements. The
transaction requires the initial collateralization of the seller's obligation
with securities having a market value, including accrued interest, equal to at
least 102% of the dollar amount the Funds invest with the value marked-to-market
daily to maintain 100% coverage. A default by the seller might cause the Funds
to experience a loss or delay in the liquidation of the collateral securing the
repurchase agreement. The Funds might also incur disposition costs in
liquidating the collateral. The Funds will make payment for such securities only
upon physical delivery or evidence of book entry transfer to the account of its
custodian bank. The Funds may not enter into a repurchase agreement of more than
seven days duration if, as a result, the market value of the Funds' net assets,
together with investments in other securities deemed to be not readily
marketable, would be invested in excess of the Funds' policy on investments in
illiquid securities.

         In the event of a bankruptcy or other default of a repurchase
agreement's seller, a Fund might incur expenses in enforcing its rights, and
could experience losses, including a decline in the value of the underlying
securities and loss of income. Each Fund will not invest more than 15% of its
net assets at the time of purchase in repurchase agreements maturing in more
than seven days and other illiquid securities.


                                       9
<PAGE>   79
                                 SWAP AGREEMENTS

         Swap agreements can be structured to increase or decrease a Fund's
exposure to long- or short-term interest rates, mortgage securities, corporate
borrowing rates or other conditions, such as security prices or inflation rates.
For example, if a Fund agreed to pay a fixed rate in exchange for a floating
rate while holding fixed-rate bonds, the swap would tend to decrease the Fund's
exposure to long-term interest rates. Swap agreements tend to increase or
decrease the overall volatility of a Fund's investments and its share price and
yield. Changes in interest rates, or other factors determining the amount of
payments due to and from a Fund, can be the most significant factors in the
performance of a swap agreement. If a swap agreement calls for payments from a
Fund, the Fund must be prepared to make such payments when they are due. In
order to help minimize risks, each Fund will segregate appropriate assets for
any accrued but unpaid net amounts owed under the terms of a swap agreement
entered into on a net basis. All other swap agreements will require a Fund to
segregate appropriate assets in the amount of the accrued amounts owned under
the swap. A Fund could sustain losses if a counterparty does not perform as
agreed under the terms of the swap. Each Fund will enter into swap agreements
with counterparties deemed creditworthy by the Investment Manager.

                               PORTFOLIO MATURITY

   
         From time to time, the Funds may compare their average portfolio
maturities with the dollar-weighted average maturity of the indexes and the
average portfolio maturities of other mutual funds having similar investment
objectives.
    

                          PORTFOLIO SECURITIES LENDING

         Loans of portfolio securities made by any Fund will be fully
collateralized by U.S. Government securities, letters of credit, cash or cash
equivalents and will be marked to market daily.

         FUTURES AND OPTIONS CONTRACTS AND INDEX PARTICIPATION CONTRACTS

         The Funds may buy and sell futures contracts on securities and any
index comprised of securities in which the Funds may invest, option contracts on
securities, indexes and futures contracts, and index participation contracts.

         In a securities futures contract, one party agrees to make, and the
other agrees to take, delivery of a specific amount of a specific security at a
specified time and price. Under a securities index futures contract, the parties
agree to make or take delivery of an amount of cash equal to a specific dollar
amount times the difference between the value of an agreed-upon securities index
at the end of the contract period and its value at the time the agreement was
originally made. Futures contracts are commonly "closed out" prior to the end of
the contract period by entering into an offsetting transaction in a
corresponding futures contract.

         Options on indexes are similar to options on securities except that,
rather than representing the right to take or make delivery of a security at a
specified exercise price, an option on a securities index gives the holder the
right to receive, upon exercise of the option, an amount of cash if the closing
level of the securities index upon which the option is based is "in the money."
This amount of cash is equal to the difference between the closing level of the
index and the exercise price of the option, expressed in dollars times a
specified multiple. Unlike securities options, all settlements are


                                       10
<PAGE>   80
in cash, and gain or loss depends on price movements in the group of securities
comprising the index rather than price movements of individual securities.

         Index participations and index participation contracts provide the
equivalent of a position in the securities comprising an index, with each
security's representation equaling its index weighting. Moreover, their holders
are entitled to payments equal to the dividends paid by the underlying index
securities. Generally, the value of an index participation or index
participation contract will rise and fall along with the value of the related
index. A Fund will invest in index participation contracts only if a liquid
market for them appears to exist.

         When buying or selling futures contracts, a Fund must deposit an amount
of cash, cash equivalents or liquid, high quality debt instruments with its
broker equal to a fraction of the contract amount. This amount is known as
"initial margin" and is in the nature of a performance bond or good faith
deposit on the contract, which will be returned to the Fund upon termination of
the futures contract, assuming all contractual obligations have been satisfied.
Subsequent payments to and from the broker, known as "variation margin," will be
made at least daily as the price of the futures contract fluctuates, and the
Fund's position in the contract becomes more or less valuable. This process is
known as "marking-to-market."

         Regulations of the Commodities Futures Trading Commission ("CFTC")
applicable to the Funds generally require that all of their futures transactions
constitute "bona fide" hedging transactions. As a result, a Fund will normally
sell futures contracts to protect against a decrease in the price of securities
it owns but intends to sell or purchase futures contracts to protect against an
increase in the price of securities it intends to purchase. In addition, the
Funds may purchase and sell futures contracts and options as a substitute for a
comparable market position in the underlying securities. Futures transactions
need not constitute "bona fide" hedging under CFTC regulations if the aggregate
initial margin and premiums required to establish such positions do not exceed
5% of each Fund's net assets.

         Each Fund may enter into futures contracts and options thereon provided
that the aggregate deposits required on these contracts do not exceed 5% of the
Fund's total assets.

         Risks Involved in Futures and Options Transactions. Futures and options
transactions involve risks, which in some strategies can be substantial due to
the low margin deposits required and the extremely high degree of leverage
involved in futures and options trading. However, to the extent the Funds'
futures and options practices are limited to use in tracking the performance of
a Fund's index, the Investment Manager does not believe that the Funds are
subject to the degree of risk frequently associated with futures and options
transactions. To the extent the Funds engage in the use of futures and options
on futures other than for performance tracking purposes, the Funds may be
subject to additional risk.

         Three principal areas of risk are present when futures and options
contracts are used in a performance tracking context. First, there may not
always be a liquid secondary market for a futures or option contract at the time
when a Fund seeks to "close out" its position. If a Fund is unable to "close
out" a futures or option position, and prices move adversely, the Fund would
have to continue to make daily cash payments to maintain its required margin,
and if the Fund has insufficient cash to meet this requirement, it may have to
sell portfolio securities at a disadvantageous time. In addition, the Fund might
be required to deliver the securities underlying futures or options contracts it
holds. Each Fund will seek to reduce the risk that it will be unable to


                                       11
<PAGE>   81
"close out" contracts by entering into only futures or options contracts that
are traded on national exchanges and for which there appears to be a liquid
secondary market.

         It is also possible that changes in the prices of futures or options
contracts might correlate imperfectly, or not at all, with changes in the market
values of the securities being hedged. This situation could result from price
distortions in the futures or options markets due to, among other things, active
trading by speculators and use of offsetting "closing" transactions by other
investors seeking to avoid meeting additional margin deposit requirements. In
the event of significant market distortions, it is possible that a Fund could
lose money on futures or options contracts and experience appreciation in the
value of its portfolio securities, or vice versa. The risk of imperfect
correlation will be minimized by investing only in those contracts whose
behavior is expected to resemble that of a Fund's underlying securities.

         Finally, adverse market movements could cause a Fund to lose up to its
full investment in an options contract and/or to experience substantial losses
on an investment in a futures contract. However, barring such significant market
distortions, a similar result could be expected were the Fund to invest directly
in the securities being hedged. There is also the risk of loss by a Fund of
margin deposits in the event of bankruptcy of a broker with whom the Fund has an
open position in a futures contract or option.

         The extent to which each Fund may purchase and sell futures, options,
equity index participations and index participation contracts may be limited by
each Fund's intention to meet the Internal Revenue Code of 1986, as amended (the
"Code"), requirements for qualification as a regulated investment company. See
"Taxes - Federal Income Tax."

                             INVESTMENT RESTRICTIONS

         The Following investment policies and restrictions are fundamental and
cannot be changed without approval of the holders of a majority of the
outstanding voting securities (as defined in the 1940 Act). All other investment
policies and restrictions contained in the SAI are non-fundamental and may be
changed without shareholder approval or prior notice.

EACH FUND MAY:

         1)       lend or borrow money to the extent permitted by the Investment
                  Company Act of 1940 or rules or regulations thereunder, as
                  such statute, rules or regulations may be amended from time to
                  time.

         2)       pledge, mortgage or hypothecate any of its assets to the
                  extent permitted by the Investment Company Act of 1940 or the
                  rules or regulations thereunder, as such statute, rules or
                  regulations may be amended from time to time.

         3)       not concentrate investments in a particular industry or group
                  of industries, or within one state (except with respect to the
                  Total Bond Fund and the Short Bond Fund, to the extent that
                  the index which each Fund seeks to track is also so
                  concentrated) as concentration is defined under the Investment
                  Company Act of 1940 or the rules or regulations thereunder, as
                  such statute, rules or regulations may be amended from time to
                  time.


                                       12
<PAGE>   82
         4)       underwrite securities to the extent permitted by the
                  Investment Company Act of 1940 or the rules or regulations
                  thereunder, as such statute, rules or regulations may be
                  amended from time to time.

         5)       not, as to 75% of the Fund's assets, purchase securities of
                  any issuer (other than obligations of, or guaranteed by, the
                  U.S. Government, its agencies or instrumentalities) if, as a
                  result more than 5% of the value of its total assets would be
                  invested in the securities of such issuer.

         6)       not invest for the purpose of exercising control or management
                  of another issuer.

         7)       not purchase securities of other investment companies, except
                  as permitted by the Investment Company Act of 1940.

         8)       issue senior securities to the extent permitted by the
                  Investment Company Act of 1940 or the rules or regulations
                  thereunder, as such statute, rules or regulations may be
                  amended from time to time.

         9)       purchase or sell commodities, commodities contracts, futures
                  contracts, or real estate to the extent permitted by the
                  Investment Company Act of 1940 or rules or regulations
                  thereunder, as such statute, rules or regulations may be
                  amended from time to time.

         The following description of the 1940 Act may assist investors in
understanding some of the above fundamental policies and restrictions.

         BORROWING. The 1940 Act presently restricts the Funds from borrowing
(including pledging, mortgaging or hypothecating assets) in excess of 331/3% of
their total assets (not including temporary borrowings not in excess of 5% of
total assets).

         LENDING. Under the 1940 Act, a Fund may only make loans if expressly
permitted by its investment policies.

         CONCENTRATION. The 1940 Act presently defines concentration as
investing 25% or more of the Fund's total assets in an industry or group of
industries with certain exceptions.

         UNDERWRITING. The 1940 Act presently limits a Fund's ability to
underwrite securities if, as a result, its underwriting commitments would exceed
25% of its total assets.

         The following investment policies and restrictions are non-fundamental
and may be changed by the Trust's Board of Trustees.

EACH FUND MAY NOT:

         1)  purchase more than 10% of any class of securities of any issuer if,
             as a result of such purchase, it would own more than 10% of such
             issuer's outstanding voting securities.

                                       13
<PAGE>   83
         2)  invest more than 5% of its total assets in securities of issuers
             (other than obligations of, or guaranteed by the U.S. Government,
             its agencies or instrumentalities) that with their predecessors
             have a record of less than three years continuous operation.

         3)  purchase securities that would cause more than 5% of its net assets
             to be invested in restricted securities, excluding restricted
             securities eligible for resale pursuant to Rule 144A under the
             Securities Act of 1933 that have been determined to be liquid under
             procedures adopted by the Trust's Board of Trustees based upon the
             trading markets for the securities.

         4)  invest more than 5% of its net assets in warrants, valued at the
             lower of cost or market, and no more than 40% of this 5% may be
             invested in warrants that are not listed on the New York Stock
             Exchange or the American Stock Exchange, provided, however, that
             for purposes of this restriction, warrants acquired by a Fund in
             units or attached to other securities are deemed to be without
             value.

         5)  purchase puts, calls, straddles, spreads or any combination thereof
             if by reason of such purchase the value of its aggregate investment
             in such securities would exceed 5% of the Fund's total assets.

         6) make short sales, except for short sales against the box.

         7)  purchase or sell interests in oil, gas or other mineral development
             programs or leases, although it may invest in companies that own or
             invest in such interests or leases.

         8)  purchase securities on margin, except such short-term credits as
             may be necessary for the clearance of purchases and sales of
             securities.

         9)  lend money to any person, except that each Fund may (i) purchase a
             portion of an issue of short-term debt securities or similar
             obligations (including repurchase agreements) that are publicly
             distributed or customarily purchased by institutional investors,
             and (ii) lend its portfolio securities.

         10) borrow money, except from banks for temporary purposes to satisfy
             redemption requests or for extraordinary or emergency purposes and
             then only in an amount not to exceed one-third of the value of its
             total assets (including the amount borrowed), provided that the
             Fund will not purchase securities while borrowings represent more
             than 5% of its total assets.

         11) pledge, mortgage or hypothecate any of its assets, except that to
             secure allowable borrowing, each Fund may do so with respect to no
             more than one-third of the value of its total assets.

         12) underwrite securities issued by others, except to the extent it may
             be deemed to be an underwriter, under the federal securities laws,
             in connection with the disposition of securities from its
             investment portfolio.


                                       14
<PAGE>   84
         13) purchase securities of any other issuer (other than U.S. Government
             securities ) if, as a result , more than 25% of its total assets
             would be invested in the securities if an issuer from a single
             industry or group of industries.

         14) purchase the securities of any issuer if, as a result more than 15
             % of its net assets would be invested in illiquid securities.

         15) purchase or sell commodities or real estate, including interests in
             real estate limited partnerships, provided that each Fund may (i)
             purchase securities of companies that deal in real estate or
             interests therein, and (ii) purchase or sell futures contracts,
             options contracts, equity index participations and index
             participations contracts.


                                       15
<PAGE>   85
   
                             MANAGEMENT OF THE FUNDS
    

   
 The officers and trustees, their principal occupations during the past five
years and their affiliations, if any, with The Charles Schwab Corporation,
Charles Schwab & Co., Inc. (Schwab) and Charles Schwab Investment Management,
Inc. (CSIM or the investment manager), are as follows:
    

   
<TABLE>
<CAPTION>
NAME/DATE OF BIRTH                      POSITION(S) WITH THE      PRINCIPAL  OCCUPATIONS & AFFILIATIONS
                                        TRUSTS
<S>                                     <C>                       <C>
CHARLES R. SCHWAB*                      Chairman and Trustee      Chairman, Co-Chief Executive Officer and
July 29, 1937                                                     Director, The Charles Schwab Corporation;
                                                                  Chairman, Chief Executive Officer and
                                                                  Director, Charles Schwab  Holdings, Inc.;
                                                                  Chairman and Director, Charles Schwab & Co.,
                                                                  Inc., Charles Schwab Investment Management,
                                                                  Inc., The Charles Schwab Trust Company and
                                                                  Schwab Retirement Plan Services, Inc.; Chairman
                                                                  and Director (current board positions), and
                                                                  Chairman (officer position) until December 1995,
                                                                  Mayer & Schweitzer, Inc. (a securities brokerage
                                                                  subsidiary of The Charles Schwab Corporation);
                                                                  Director, The Gap, Inc. (a clothing retailer),
                                                                  Transamerica Corporation (a financial services
                                                                  organization), AirTouch Communications (a
                                                                  telecommunications company) and Siebel Systems
                                                                  (a software company).

STEVEN L. SCHEID*+                    President and Trustee       Executive Vice President and Chief Financial
June 28, 1953                                                     Officer, The Charles Schwab Corporation;
                                                                  Enterprise President - Financial Products and
                                                                  Services and Chief Financial Officer, Charles
                                                                  Schwab & Co., Inc.; Chief Executive Officer,
                                                                  Chief Financial Officer and Director, Charles
                                                                  Schwab Investment Management, Inc. From 1994 to
                                                                  1996, Mr. Scheid was Executive Vice President of
                                                                  Finance for First Interstate Bancorp and was
                                                                  Principal Financial Officer from 1995 to 1996,
                                                                  First Interstate Bancorp. Prior to 1994, Mr.
                                                                  Scheid was Chief Financial Officer, First
                                                                  Interstate Bank of Texas.

DONALD F. DORWARD                       Trustee                   Executive Vice President and Managing Director,
September 23, 1931                                                Grey Advertising.  From 1990 to 1996, Mr.
                                                                  Dorward was President and Chief Executive
                                                                  Officer, Dorward & Associates (advertising and
                                                                  marketing/consulting firm).

</TABLE>
                                                                      
- --------

   
* This trustee is an "interested person" of the trusts.
+ Effective August 18, 1998, Mr. Scheid was elected as President and trustee.
    


                                       16
<PAGE>   86
   
<TABLE>
<S>                                    <C>                        <C>
ROBERT G. HOLMES                       Trustee                    Chairman, Chief Executive Officer and Director,
May 15, 1931                                                      Semloh Financial, Inc. (international
                                                                  financial services and investment advisory
                                                                  firm).

DONALD R. STEPHENS                      Trustee                   Managing Partner, D.R. Stephens &  Company
June 28, 1938                                                     (Investments) and Chairman and Chief Executive
                                                                  Officer of North American Trust (real estate
                                                                  investment trust).

MICHAEL W. WILSEY                       Trustee                   Chairman, Chief Executive Officer and Director,
August 18, 1943                                                   Wilsey Bennett, Inc. (truck and air
                                                                  transportation, real estate investment ,
                                                                  management and investments).

TAI-CHIN TUNG                           Treasurer and Principal   Vice President, Treasurer and Controller,
March 7, 1951                           Financial Officer         Charles Schwab Investment Management, Inc.  From
                                                                  1994 to 1996, Ms. Tung was Controller for
                                                                  Robertson Stephens Investment Management, Inc.
                                                                  From 1993 to 1994, she was Vice President of Fund
                                                                  Accounting, Capital Research and Management Co.

WILLIAM J. KLIPP*                       Executive Vice            Executive Vice President, SchwabFunds(R),
December 9, 1955                        President, Chief          Charles Schwab & Co., Inc.; President and Chief
                                        Operating Officer and     Operating Officer, Charles Schwab Investment
                                        Trustee                   Management, Inc.

STEPHEN B. WARD                         Senior Vice President     Senior Vice President and Chief Investment
April 5, 1955                           and Chief Investment      Officer, Charles Schwab Investment Management,
                                        Officer                   Inc.

FRANCES COLE                            Secretary                 Senior Vice President, Chief Counsel and
September 9, 1955                                                 Assistant Corporate Secretary, Charles Schwab
                                                                  Investment Management, Inc.
</TABLE>
    

* This Trustee is an "interested person" of the Trust.

   
Each of the above-referenced officers and/or trustees also serves in the
same capacity as described for the trust, for The Charles Schwab Family of
Funds, Schwab Capital Trust and Schwab Annuity Portfolios. The address of each
individual listed above is 101 Montgomery Street, San Francisco, California
94104.
    

                                       17
<PAGE>   87
                              COMPENSATION TABLE(1)

   
<TABLE>
<CAPTION>
                                                   Pension or
                                                   Retirement Benefits   Estimated Annual
                             Aggregate             Accrued as Part of    Benefits upon         Total Compensation
                             Compensation from     Fund Expenses from    Retirement from the   from the Fund
Name of Person, Position     the Trust             the Fund Complex(2)   Fund Complex(2)       Complex(2)
- ------------------------     -----------------     -------------------   ---------------       ------------------
<S>                          <C>                   <C>                   <C>                   <C>
Charles R. Schwab,Chairman            0                    N/A                   N/A                    0
and Trustee
Timothy F.                            0                    N/A                   N/A                    0
McCarthy(3)President and
Trustee
Tom D. Seip(4)President and           0                    N/A                   N/A                    0
Trustee
Steven L.                             0                    N/A                   N/A                    0
Scheid(5)President and
Trustee
William J. Klipp,Executive            0                    N/A                   N/A                    0
Vice President, Chief
Operating Officer and
Trustee
Donald F. Dorward,                 $21,150                N/A                    N/A                 $99,550
Trustee Dorward
Dorward, Trustee
Robert G. Holmes,                  $21,150                 N/A                   N/A                 $99,550
Trustee
Donald R. Stephens,                $21,150                 N/A                   N/A                 $99,550
Trustee
Michael W. Wilsey,Trustee          $21,150                 N/A                   N/A                 $99,550
</TABLE>
    

   
1.   Figures are as of August 31, 1998.
2.   Fund Complex comprises all 35 funds in the Trust, The Charles Schwab Family
     of Funds, Schwab Capital Trust and Schwab Annuity Portfolios.
3.   Mr. McCarthy served as President and Trustee until November 24, 1997.
4.   Mr. Seip served as President and Trustee until May 15, 1998.
5.   Mr. Scheid became President and Trustee on August 18, 1998.
    

                       TRUSTEE DEFERRED COMPENSATION PLAN

         Pursuant to exemptive relief received by the Trust from the Securities
and Exchange Commission (the "SEC"), the Trust may enter into deferred fee
arrangements (the "Fee Deferral Plan" or the "Plan") with the Trust's Trustees
who are not "interested persons" of any of the Funds of the Trust (the
"Independent Trustees" or the "Trustees").

         As of the date of this Statement of Additional Information, none of the
Independent Trustees has elected to participate in the Fee Deferral Plan. In the
event an Independent Trustee does elect to participate in the Plan, the Plan
would operate as described below.


                                       18
<PAGE>   88
         Under the Plan, deferred Trustee's fees will be credited to a book
reserve account established by the Trust (the "Deferred Fee Account") as of the
date such fees would have been paid to such Trustee. The value of the Deferred
Fee Account as of any date will be equal to the value the Account would have had
as of that date if the amounts credited to the Account had been invested and
reinvested in the securities of the SchwabFund or SchwabFunds(R) selected by the
participating Trustee (the "Selected SchwabFund Securities"). SchwabFunds
include the series or classes of beneficial interest of the Trust, The Charles
Schwab Family of Funds and Schwab Capital Trust.

         Pursuant to the exemptive relief granted to the Trust, each Fund will
purchase and maintain the Selected SchwabFund Securities in an amount equal to
the deemed investments in that Fund of the Deferred Fee Accounts of the
Independent Trustees. The exemptive relief granted to the Trust permits the
Funds and the Trustees to purchase the Selected SchwabFund Securities, which
transactions would otherwise be limited or prohibited by the investment policies
and/or restrictions of the Funds. See "Investment Restrictions."

                               INVESTMENT MANAGER

   
         The Investment Manager, a wholly owned subsidiary of The Charles Schwab
Corporation, serves as the Funds' investment adviser and administrator pursuant
to an Investment Advisory and Administration Agreement (the "Advisory
Agreement") between it and the Trust. The Investment Manager is registered as an
investment adviser under the Investment Advisers Act of 1940, as amended, and
currently provides investment management services to the SchwabFunds Family(R),
a family of 35 mutual funds with over $70 billion in assets as of August 31,
1998. The Investment Manager is an affiliate of: Schwab; the Trust's
distributor; the shareholder services agent; and the transfer agent. The
Advisory Agreement will continue in effect until May 20, 1999 with respect to
each of the Funds, and thereafter will continue for one year terms subject to
annual approval by: (1) the Trust's Board of Trustees or (2) a vote of a
majority (as defined in the 1940 Act) of the outstanding voting securities of a
Fund. In either event, the continuance must also be approved by a majority of
the Trust's Board of Trustees who are not parties to the Agreement or interested
persons (as defined in the 1940 Act) of any such party by vote cast in person at
a meeting called for the purpose of voting on such approval. The Advisory
Agreement may be terminated at any time upon 60 days' notice by either party, or
by a majority vote of the outstanding shares of a Fund, and will terminate
automatically upon assignment.
    

   
         The Investment Manager and Schwab have guaranteed that, through at
least October 31, 1999, Short Bond Fund and Total Bond Fund will not exceed
0.35%, of each Fund's average daily net assets.
    

   
         For the fiscal years ended August 31, 1996 , 1997 and 1998, the
investment advisory fees incurred by the Total Bond Fund, were $0 (fees were
reduced by $68,000), $0 (fees were reduced by $89,000) and $0 (fees were
reduced by $580,000), respectively.
    

   
         For the fiscal years ended August 31, 1996 , 1997 and 1998, the
investment advisory fees incurred by the Short Bond Fund were $453,000 (fees
were reduced by $149,000) , $295,000 (fees were reduced by $234,000) and
$25,000 (fees were reduced by $561,000), respectively.
    

         From time to time, each Fund may compare its total operating expense
ratio to the total operating expense ratio of other mutual funds or mutual fund
averages with similar investment


                                       19
<PAGE>   89
objectives as reported by Lipper Analytical Service, Inc., Morningstar, Inc. or
other independent sources of such information ("independent sources").

                                   DISTRIBUTOR

         Pursuant to a Distribution Agreement, Schwab is the principal
underwriter for shares of the Trust and is the Trust's agent for the purpose of
the continuous offering of the Funds' shares. Each Fund pays the cost of the
prospectuses and shareholder reports to be prepared and delivered to existing
shareholders. Schwab pays such costs when the described materials are used in
connection with the offering of shares to prospective investors and for
supplementary sales literature and advertising. Schwab receives no fee under the
Distribution Agreement. Terms of continuation, termination and assignment under
the Distribution Agreement are identical to those described above with respect
to the Advisory Agreement.

                          CUSTODIAN AND FUND ACCOUNTANT

         PNC Bank, National Association, at the Airport Business Center, 200
Stevens Drive, Suite 440, Lester, Pennsylvania 19113, serves as Custodian for
the Trust.

         PFPC, Inc., at 103 Bellevue Parkway Wilmington, Delaware 19809, serves
as Fund Accountant for the Trust.

                     ACCOUNTANTS AND REPORTS TO SHAREHOLDERS

   
         The Trust's independent accountants, PricewaterhouseCoopers LLP, 333
Market Street, San Francisco, California, 94105, audit and report on the annual
financial statements of each series of the Trust and review certain regulatory
reports and each Fund's federal income tax return. It also performs other
professional accounting, auditing, tax and advisory services when the Trust
engages it to do so. Shareholders will be sent audited annual and unaudited
semi-annual financial statements.
    

                       PORTFOLIO TRANSACTIONS AND TURNOVER

                             PORTFOLIO TRANSACTIONS

         The Funds paid no brokerage commissions for each such Fund's last three
fiscal years.

   
          The Funds typically purchase and sell securities on the
over-the-counter market through dealers acting as principals for their own
accounts. Accordingly, commissions are not charged on these transactions.
Instead, the subject securities are sold on a "net" basis with the participating
dealer(s) earning a spread (the difference between ask and bid price) on each
purchase or sale. The Funds may, however, pay commissions in connection with
their options transactions. When placing orders for each Fund's securities
transactions, the Investment Manager uses its best judgement to obtain best
price and execution. The full range and quality of brokerage services available
are considered in making these determinations. For non-debt security trades in
which Schwab is not a principal, the Investment Manager may use Schwab to
execute a Fund's transactions when it reasonably believes that commissions (or
prices) charged and transaction quality will be at least comparable to those
available from other qualified brokers or dealers.
    

                                       20
<PAGE>   90
                               PORTFOLIO TURNOVER


         For reporting purposes, each Fund's turnover rate is calculated by
dividing the value of purchases or sales of portfolio securities for the fiscal
year, whichever is less, by the monthly average value of portfolio securities
the Fund owned during the fiscal year. When the Fund makes the calculation, all
securities whose maturities at the time of acquisition were one year or less
("short-term securities") are excluded. A 100% portfolio turnover rate would
occur, for example, if all portfolio securities (aside from short-term
securities) were sold and either repurchased or replaced once during the fiscal
year.

         From time to time, each Fund may compare its portfolio turnover rate
with that of other mutual funds as reported by independent sources.

   
         The portfolio turnover rates for the Total Bond Fund for the fiscal
years ended August 31, 1997 and 1998 were 51% and 285%, respectively. The
portfolio turnover rates for the Short Bond Fund for the fiscal years ended
August 31, 1997 and 1998 were 71% and 128%, respectively.
    

         The Funds may experience higher portfolio turnover rates during their
transition to their new investment strategies. Higher turnover rates generally
mean higher transaction costs and may lead to higher taxable capital
gains/losses.

                                      TAXES

                               FEDERAL INCOME TAX

         It is each Fund's policy to qualify for taxation as a "regulated
investment company" by meeting the requirements of Subchapter M of the Code. By
following this policy, each Fund expects to eliminate or reduce to a nominal
amount the federal income tax to which it is subject.

         In order to qualify as a regulated investment company, each of the
Funds must, among other things, (1) derive at least 90% of its gross income from
dividends, interest, payments with respect to securities loans and gains from
the sale or other disposition of stocks, securities, foreign currencies or other
income (including gains from options, futures or forward contracts) derived with
respect to its business of investing in stocks, securities or currencies; (2)
for taxable years beginning on or before August 5, 1997 derive less than 30% of
its gross income from gains from the sale or other disposition of certain assets
(including stocks and securities) held for less than three months; and (3)
diversify its holdings so that at the end of each quarter of its taxable year
(i) at least 50% of the market value of the Fund's total assets is represented
by cash or cash items, U.S. Government securities, securities of other regulated
investment companies and other securities limited, in respect of any one issuer,
to a value not greater than 5% of the value of the Fund's total assets and 10%
of the outstanding voting securities of such issuer, and (ii) not more than 25%
of the value of its assets is invested in the securities of any one issuer
(other than U.S. Government securities or securities of any other regulated
investment company) or of two or more issuers that the Fund controls, within the
meaning of the Code, and that are engaged in the same, similar or related trades
or businesses. These requirements may restrict the degree to which a Fund may
engage in certain hedging transactions and may limit the range of a Fund's
investments. If a Fund qualifies as a regulated investment company, it will not
be subject to federal income tax on the part of its net investment income and
net realized capital gains, if any, which it distributes to shareholders,
provided that the Fund meets certain minimum distribution requirements. To
comply with these requirements, a Fund


                                       21
<PAGE>   91
must distribute at least (a) 90% of its "investment company taxable income" (as
that term is defined in the Code) and (b) 90% of the excess of its (i)
tax-exempt interest income over (ii) certain deductions attributable to that
income (with certain exceptions), for its taxable year. Each Fund intends to
make sufficient distributions to shareholders to meet these requirements.

         The Code imposes a non-deductible excise tax on regulated investment
companies that do not distribute in a calendar year (regardless of whether they
otherwise have a non-calendar taxable year) an amount equal to 98% of their
"ordinary income" (as defined in the Code) for the calendar year plus 98% of
their capital gain net income for the one-year period ending on October 31 of
such calendar year, plus any undistributed amounts from prior years. For the
foregoing purposes, a Fund is treated as having distributed any amount on which
it is subject to income tax for any taxable year ending in such calendar year.
If the distributions during a calendar year are less than the required amount,
the Fund is subject to a non-deductible excise tax equal to 4% of the
deficiency.

         Any dividends declared by the Funds in October, November or December to
shareholders of record during those months and paid during the following January
are treated, for tax purposes, as if they were received by each shareholder on
December 31 of the year declared. A Fund may adjust its schedule for the
reinvestment of distributions for the month of December to assist in complying
with the reporting and minimum distribution requirements of the Code.

   
         Dividends paid by the Funds from net investment income and
distributions from the Fund's net short-term capital gains in excess of any net
long-term capital losses, whether received in cash or reinvested, generally will
be taxable as ordinary income. Distributions received from a Fund designated as
long-term capital gains (net of capital losses), whether received in cash or
reinvested, will be taxable as long-term capital gains without regard to the
length of time a shareholder has owned shares in a Fund. Any loss on the sale or
exchange of a Fund's shares held for six months or less shall be treated as a
long-term capital loss to the extent of any long-term capital gain
distribution received on the shares. If a shareholder is not subject to tax on
his income, generally the shareholder will not be taxed on amounts distributed
by the Fund.
    

         A Fund will be required in certain cases to withhold and remit to the
U.S. Treasury 31% of taxable dividends paid to any shareholder who (1) fails to
provide a correct taxpayer identification number certified under penalty of
perjury; (2) is subject to withholding by the Internal Revenue Service for
failure to properly report all payments of interest or dividends; or (3) fails
to provide a certified statement that he or she is not subject to "backup
withholding." This "backup withholding" is not an additional tax and any amounts
withheld may be credited against the shareholder's ultimate U.S. tax liability.

         A Fund's transactions in futures contracts and options and certain
other investment and hedging activities are subject to special tax rules. In a
given case, these rules may accelerate income to a Fund, defer its losses, cause
adjustments in the holding periods of the Fund's assets, convert short-term
capital losses into long-term capital losses or otherwise affect the character
of the Fund's income. These rules could therefore affect the amount, timing and
character of distributions to shareholders. Income earned as a result of these
transactions would, in general, not be eligible for the corporate dividends
received deduction when distributed to corporate shareholders. The Funds will
endeavor to make any available elections pertaining to these transactions in a
manner believed to be in the best interest of the Funds and their shareholders.


                                       22
<PAGE>   92
         The foregoing discussion relates only to federal income tax law as
applicable to U.S. citizens or residents. Foreign shareholders (i.e.,
nonresident alien individuals and foreign corporations, partnerships, trusts and
estates) are generally subject to U.S. withholding tax at the rate of 30% (or a
lower tax treaty rate) on distributions derived from net investment income and
short-term capital gains. Distributions to foreign shareholders of long-term
capital gains and any gains from the sale or other disposition of shares of the
Funds are generally not subject to U.S. taxation, unless the recipient is an
individual who meets the Code's definition of "resident alien." Different tax
consequences may result if the foreign shareholder is engaged in a trade or
business within the United States. In addition, the tax consequences to a
foreign shareholder entitled to claim the benefits of a tax treaty may be
different than those described above. Distributions by a Fund may also be
subject to state, local and foreign taxes, and their treatment under applicable
tax laws may differ from the federal income tax treatment.

         The Funds may experience higher investment costs resulting from taxable
capital gains/losses from selling securities during the transition from actively
managed portfolios to indexing investment strategies.

                             SHARE PRICE CALCULATION

   
         Each Fund's net asset value per share is determined, as of 4:00 p.m.
Eastern time, each day the New York Stock Exchange (NYSE) is open for trading .
The NYSE may change its holiday closing schedule at anytime, but the following
holiday closings are currently scheduled for 1999: New Year's Day, Dr.
Martin Luther King Jr.'s Birthday, President's Day, Good Friday, Memorial Day,
Independence Day (observed), Labor Day, Thanksgiving Day and Christmas Day.
    
   
         On any day that the NYSE or principal government securities markets
closes early, such as days in advance of holidays, the Funds reserve the right
to advance the time by which purchase, redemption and exchange orders must be
received on that day. Shares purchased begin to earn dividends on the next
business day with the following exceptions: Columbus Day and Veterans Day. The
Funds value their portfolio securities daily based on their fair value.
Securities traded on stock exchanges are valued at the last quoted sales price
on the exchange on which such securities are primarily traded, or, lacking any
sales, at the mean between the bid and ask prices.
    

         Investments in mutual funds are valued at their respective net asset
values, as determined by those funds. Securities traded in the over-the-counter
market are valued at the last sales price that day, or if no sales that day, at
the mean between the bid and ask prices. In addition, securities that are
primarily traded on foreign exchanges are generally valued at the preceding
closing values of such securities on their respective exchanges with these
values then translated into U.S. dollars at the current exchange rate. Foreign
securities for which the closing values are not readily available are valued at
fair value as determined in good faith pursuant to the Board of Trustees
guidelines. Securities for which market quotations are not readily available
(including restricted securities that are subject to limitations on their sale)
are valued at fair value as determined in good faith pursuant to the Trust's
Board of Trustees guidelines. Securities may be valued on the basis of prices
provided by pricing services when such prices are believed to reflect fair
market value.

         From time to time, each Fund may report its net asset value per share
over a specified period. Each Fund's net asset value, for the periods set forth,
may be compared to net asset values for other mutual funds with similar
investment objectives as reported by independent sources.


                                       23
<PAGE>   93
                             TOTAL RETURN AND YIELD

                            Standardized Total Return

           Average annual total return for a period is determined by calculating
the actual dollar amount of investment return on a $1,000 investment in a Fund
made at the beginning of the period, then calculating the average annual
compounded rate of return that would produce the same investment return on the
$1,000 over the same period. In computing average annual total return, a Fund
assumes the reinvestment of all distributions at net asset value on applicable
reinvestment dates.

   
<TABLE>
<CAPTION>
                                        Average annual     Average annual total      Average annual total return
                                        total return for    return for 5 years       from commencement of
                                        1 year ended        ended August 31, 1998    operations to August 31,
                                        August 31, 1998    ----------------------    1998*
                                        ---------------                              -----
<S>                                     <C>                <C>                        <C>
Short Bond Fund                                7.64%                 4.73%                       6.01%
Total Bond Fund                               10.83%                 6.06%                       7.10%
</TABLE>
    
   
*    November 5, 1991 for Short Bond Fund and March 5, 1993 for Total Bond Fund.
    

                          NONSTANDARDIZED TOTAL RETURN

           Nonstandardized total return for a Fund differs from standardized
total return in that it relates to periods other than the period for
standardized total return and/or that it represents aggregate (rather than
average) total return.

           A Fund may also advertise its cumulative total return since
inception. This number is calculated using the same formula that is used for
average annual total return except that, rather than calculating the total
return based on a one-year period, cumulative total return is calculated from
inception to the date specified.

                                      YIELD

         A Fund's yield refers to the net investment income generated by a
hypothetical investment in the Fund over a specific 30-day period. This net
investment income is then annualized, which means that the net investment income
generated during the 30-day period is assumed to be generated in each 30-day
period over an annual period, and is shown as a percentage of the investment.

   
<TABLE>
<CAPTION>
Fund                                                                  30-day period ended August 31, 1998
- -----                                                                  -----------------------------------
<S>                                                                   <C>
Short Bond Fund                                                                          5.23%
Total Bond Fund                                                                          5.73%
</TABLE>
    

                                       24
<PAGE>   94
                                 EFFECTIVE YIELD

         A Fund's effective yield is calculated similarly, but the net
investment income earned by the investment is assumed to be compounded monthly
when annualized. The effective yield will be slightly higher than the yield due
to this compounding effect.

                             COMPARATIVE PERFORMANCE

         Each Fund's performance may be compared to various unmanaged bond
indexes in addition to the Lehman Brothers Short (1-5) Government/Corporate
Index and the unmanaged Lehman Brothers Aggregate Bond Index, including but not
limited to, the Salomon Brothers High Grade Index, the Shearson Lehman
Government/Corporate Bond Index, the Merrill Lynch Government/Corporate Bond
Master Index and to Lipper Analytical Services, Inc. averages and Morningstar,
Inc. rankings.

   
         The following tables illustrate the historical total return of
securities comprising the indexes beginning calendar year end December 31, 1976
through calendar period end December 30, 1997. This historical information is
not indicative of any future trend of the Funds or the particular market sectors
that the Indexes represent.
    
   
<TABLE>
<CAPTION>
               DATE                         AGGREGATE BOND INDEX             GOVERNMENT/CORPORATE INDEX
<S>                                         <C>                              <C>
           Dec. 31, 1976                           15.60                               10.87
           Dec. 31, 1977                            3.04                                3.62
           Dec. 31, 1978                            1.39                                2.97
           Dec. 31, 1979                            1.93                                7.09
           Dec. 31, 1980                            2.71                                7.82
           Dec. 31, 1981                            6.25                               11.78
           Dec. 31, 1982                           32.62                               23.62
           Dec. 30, 1983                            8.36                                8.96
           Dec. 31, 1984                           15.15                               14.19
           Dec. 31, 1985                           22.10                               15.53
           Dec. 31, 1986                           15.26                               11.39
           Dec. 31, 1987                            2.76                                5.01
           Dec. 30, 1988                            7.89                                6.29
           Dec. 31, 1989                           14.53                               11.70
           Dec. 31, 1990                            8.96                                9.69
           Dec. 31, 1991                           16.00                               13.14
           Dec. 31, 1992                            7.40                                6.83
           Dec. 31, 1993                            9.75                                7.10
           Dec. 31, 1994                           -2.92                               -0.72
           Dec. 31, 1995                           18.47                               12.88
           Dec. 31, 1996                            3.63                                4.67
           Dec. 31, 1997                            9.65                                7.13
</TABLE>
    

                                       25
<PAGE>   95
                               GENERAL INFORMATION

         The Trust was organized as a business trust under the laws of
Massachusetts on October 26, 1990 and may issue an unlimited number of shares of
beneficial interest in one or more investment portfolios or series ("Series").
Currently, shares of seven Series are offered. The Board of Trustees may
authorize the issuance of shares of additional Series if it deems it desirable.
Shares within each Series have equal, noncumulative voting rights and equal
rights as to dividends, assets and liquidation of such Series.

         Shares will vote by Series and not in the aggregate (for example, when
voting to approve the investment advisory agreement), except when voting in the
aggregate is permitted under the 1940 Act, such as for election of trustees.

         The Trust generally is not required to hold shareholder meetings.
However, as provided in its Agreement and Declaration of Trust and Bylaws,
shareholder meetings will be held in connection with the following matters: (1)
removal of Trustees if a meeting is requested in writing by a shareholder or
shareholders who beneficially own(s) 10% or more of the Trust's shares; (2)
adoption of any contract for which shareholder approval is required by the 1940
Act; (3) any termination of the Trust to the extent and as provided in the
Declaration of Trust; (4) any amendment of the Declaration of Trust (other than
amendments changing the name of the Trust or any of its investment portfolios,
supplying any omission, curing any ambiguity or curing, correcting or
supplementing any defective or inconsistent provision thereof); (5) determining
whether a court action, proceeding or claim should or should not be brought or
maintained derivatively or as a class action on behalf of the Trust or the
shareholders, to the same extent as the stockholders of a Massachusetts business
corporation; and (6) such additional matters as may be required by law, the
Declaration of Trust, the Bylaws or any registration of the Trust with the SEC
or any state or as the Board of Trustees may consider desirable. The
shareholders also would vote upon changes to a Fund's fundamental investment
objective, policies or restrictions.

         Each Trustee serves until the next meeting of shareholders, if any,
called for the purpose of electing Trustees and until the election and
qualification of his or her successor or until death, resignation, retirement or
removal by a majority vote of the shares entitled to vote (as described below)
or of a majority of the Trustees. In accordance with the 1940 Act, (i) the Trust
will hold a shareholder meeting for the election of Trustees when less than a
majority of the Trustees have been elected by shareholders and (ii) if, as a
result of a vacancy in the Board of Trustees, less than two-thirds of the
Trustee have been elected by the shareholders, that vacancy will be filled by a
vote of the shareholders.

         Upon the written request of 10 or more shareholders who have been such
for at least six months and who hold shares constituting at least 1% of the
Trust's outstanding shares stating that they wish to communicate with the other
shareholders for the purpose of obtaining signatures necessary to demand a
meeting to consider removal of one or more Trustees, the Trust has undertaken to
disseminate appropriate materials at the expense of the requesting shareholders.

         The Bylaws provide that the presence at a shareholder meeting in person
or by proxy of at least 30% of the shares entitled to vote on a matter shall
constitute a quorum, unless otherwise provided by the 1940 Act or other
applicable law. Thus, even if less than a majority of shareholders were
represented, a meeting of the Trust's shareholders could occur. Attending
shareholders would in such case be permitted to take action not requiring the
vote of more than a majority of a quorum.


                                       26
<PAGE>   96
Some matters requiring a larger vote under the Declaration of Trust, such as
termination or reorganization of the Trust, and certain amendments of the
Declaration of Trust, could not be decided at such a meeting; nor could matters
which under the 1940 Act require the vote of a "majority of the outstanding
voting securities" as defined in the 1940 Act. The Declaration of Trust
specifically authorizes the Board of Trustees to terminate the Trust (or any of
its investment portfolios) by notice to the shareholders without shareholder
approval.

         Under Massachusetts law, shareholders of a Massachusetts business trust
could, under certain circumstances, be held personally liable for the Trust's
obligations. The Declaration of Trust, however, disclaims shareholder liability
for the Trust's acts or obligations and requires that notice of such disclaimer
be given in each agreement, obligation or instrument entered into or executed by
the Trust or the Trustees. In addition, the Declaration of Trust provides for
indemnification out of the property of an investment portfolio in which a
shareholder owns or owned shares for all losses and expenses of such shareholder
or former shareholder if he or she is held personally liable for the obligations
of the Trust solely by reason of being or having been a shareholder. Moreover,
the Trust will be covered by insurance which the Trustees consider adequate to
cover foreseeable tort claims.

         Thus, the risk of a shareholder incurring financial loss on account of
shareholder liability is considered remote, because it is limited to
circumstances in which a disclaimer is inoperative and the Trust itself is
unable to meet its obligations.

   
         Year 2000 presents uncertainties and possible risks to the smooth
operations of the funds and the provision of services to shareholders. Many
computer programs use only two digits to identify a specific year and therefore
may not accurately recognize the upcoming change in the next century. If not
corrected, many computer applications could fail or create erroneous results by
or at year 2000. Due to the funds' and their service providers' dependence on
computer technology to operate, the nature and impact of year 2000 processing
failures on the funds could be material. The funds' investment adviser is taking
steps to minimize the risks of year 2000 for the funds, including obtaining
assurances from the funds' service providers that they are analyzing their
systems, testing them for potential problems and remediating them to the extent
possible. There can be no assurance that these steps will be sufficient to avoid
any adverse impact on the funds, however, minimizing year 2000 risk for the
funds is a priority of the Investment Manager.
    

   
                         PRINCIPAL HOLDERS OF SECURITIES
    

   
         As of October 14, 1998, Morgan Stanley Trust Company as custodian for
the MarketTrack Balanced Portfolio, MarketTrack Conservative Portfolio and
MarketTrack High Growth Portfolio, 1 Pierrepont Plaza, Brooklyn, NY 11201
directly or beneficially owned , respectively, 46.11%, 32.86% and 20.07% of the
Total Bond Market Index Fund.
    
   
         In addition, as of October 8, 1998, the officers and trustees of the
Trust, as a group, owned less than 1% of each Fund's outstanding voting
securities.
    

         For further information, please refer to the registration statement and
exhibits for the Trust on file with the SEC in Washington, D.C. and available
upon payment of a copying fee. The statements in the Prospectus and this
Statement of Additional Information concerning the contents of contracts or
other documents, copies of which are filed as exhibits to the registration
statement, are qualified by reference to such contracts or documents.


                                       27
<PAGE>   97
                        PURCHASE AND REDEMPTION OF SHARES

         Each Fund has set minimum initial and subsequent investment
requirements, as disclosed in the Prospectus. These minimum investment
requirements may be changed at any time and are not applicable to certain types
of investors. The Trust may waive the minimums for purchases by Trustees,
Directors, officers or employees of the Trust, Schwab or the Investment Manager.

         The Trust has made an election with the SEC to pay in cash all
redemptions requested by any shareholder of record limited in amount during any
90-day period to the lesser of $250,000 or 1% of its net assets at the beginning
of such period. This election is irrevocable without the SEC's prior approval.
Redemption requests in excess of the stated limits may be paid, in whole or in
part, in investment securities or in cash, as the Trust's Board of Trustees may
deem advisable; however, payment will be made wholly in cash unless the Board of
Trustees believes that economic or market conditions exist that would make such
a practice detrimental to the best interests of the Fund. If redemption proceeds
are paid in investment securities, such securities will be valued as set forth
in the Prospectus of the Fund affected under "Share Price Calculation" and a
redeeming shareholder would normally incur brokerage expenses if he or she were
to convert the securities to cash.

         All orders to purchase shares of the Funds are subject to acceptance by
the Funds and are not binding until confirmed or accepted in writing. Any
purchase which would result in a single shareholder owning shares with a value
of more than 10% of a Fund's assets or $3 million, whichever is greater, are
subject to prior approval by that Fund.

         Payment for redeemed shares will be credited directly to your Schwab
account no later than 7-days after the Fund or Schwab receives your redemption
instructions in proper form. Redemption proceeds will then be held there or
mailed to you depending on the account standing instructions you have selected.

         An exchange involves the redemption of Fund shares and the purchase of
shares of any SchwabFunds of your choice. An exchange of shares will be treated
as a sale and purchase of the shares for federal income tax purposes.

         Due to the relatively high cost of maintaining accounts with smaller
holdings, each Fund reserves to right to redeem a shareholder's shares if, as a
result of redemptions, the aggregate value of a shareholder's holdings in that
Fund drops below the Fund's minimum balance requirement. Shareholders will be
notified in writing 30 days before the Fund takes such action to allow them to
increase their holdings to at least the minimum level. Shares of each Fund will
be automatically redeemed should the Schwab account in which they are carried be
closed.

                                OTHER INFORMATION

         The Prospectus and Statement of Additional Information do not contain
all the information included in the Registration Statement filed with the SEC
under the Securities Act of 1933, as amended, with respect to the securities
offered by the Prospectuses. Certain portions of the Registration Statement have
been omitted from the Prospectuses and this Statement of Additional Information
pursuant to the rules and regulations of the SEC. The Registration Statement,
including the exhibits filed therewith, may be examined at the office of the SEC
in Washington, D.C.


                                       28
<PAGE>   98
         Statements contained in the Prospectus or Statement of Additional
Information as to the contents of any contract or other document referred to are
not necessarily complete, and, in each instance, reference is made to the copy
of such contract or other document filed as an exhibit to the Registration
Statement of which the Prospectuses and this Statement of Additional Information
form a part, each such statement being qualified in all respects by such
reference.

   
         Each Fund's financial statements and financial highlights for the
fiscal year ended August 31, 1998 are included in each Fund's Annual Report,
which is a separate report supplied with this Statement of Additional
Information. Each Fund's financial statements and financial highlights are
incorporated herein by reference.
    

         THIS STATEMENT OF ADDITIONAL INFORMATION DOES NOT CONSTITUTE AN
OFFERING BY THE TRUST, ANY SERIES THEREOF, OR BY THE DISTRIBUTOR IN ANY
JURISDICTION IN WHICH SUCH OFFERING MAY NOT BE LAWFULLY MADE.


                                       29
<PAGE>   99
                   APPENDIX - RATINGS OF INVESTMENT SECURITIES

From time to time, each Fund may report the percentage of its assets which fall
into the rating categories set forth below.

                                      BONDS

                            MOODY'S INVESTORS SERVICE

Aaa Bonds which are rated Aaa are judged to be of the best quality. They carry
the smallest degree of investment risk and are generally referred to as "gilt
edged." Interest payments are protected by a large or by an exceptionally stable
margin and principal is secure. While the various protective elements are likely
to change, such changes as can be visualized are most unlikely to impair the
fundamentally strong position of such issues.

Aa Bonds which are rated Aa are judged to be of high quality by all standards.
Together with the Aaa group they comprise what are generally known as high-grade
bonds. They are rated lower than the best bonds because margins of protection
may not be as large as in Aaa securities or fluctuation of protective elements
may be of greater amplitude or there may be other elements present which make
the long-term risk appear somewhat larger than the Aaa securities.

A Bonds which are rated A possess many favorable investment attributes and are
to be considered as upper-medium grade obligations. Factors giving security to
principal and interest are considered adequate, but elements may be present
which suggest a susceptibility to impairment some time in the future.

Baa Bonds which are rated Baa are considered as medium-grade obligations (i.e.,
they are neither highly protected nor poorly secured). Interest payments and
principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.

Ba Bonds which are rated Ba are judged to have speculative elements; their
future cannot be considered as well-assured. Often the protection of interest
and principal payments may be very moderate and thereby not well safeguarded
during both good and bad times over the future. Uncertainty of position
characterizes bonds in this class.

B Bonds which are rated B generally lack characteristics of the desirable
investment. Assurance of interest and principal payments or of maintenance of
other terms of the contract over any long period of time may be small.


   
    

                                       30
<PAGE>   100
                          STANDARD & POOR'S CORPORATION

INVESTMENT GRADE

AAA Debt rated 'AAA' has the highest rating assigned by S&P. Capacity to pay
interest and repay principal is extremely strong.

AA Debt rated 'AA' has a very strong capacity to pay interest and repay
principal and differs from the highest rated debt only in small degree.

A Debt rated 'A' has a strong capacity to pay interest and repay principal,
although it is somewhat more susceptible to adverse effects of changes in
circumstances and economic conditions than debt in higher-rated categories.

BBB Debt rated 'BBB' is regarded as having an adequate capacity to pay interest
and repay principal. Whereas it normally exhibits adequate protection
parameters, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity to pay interest and repay principal for
debt in this category than in higher rated categories.

SPECULATIVE GRADE

   
Debt rated 'BB' and 'B' is regarded as having predominantly speculative
characteristics with respect to capacity to pay interest and repay principal.
While such debt will likely have some quality and protective characteristics,
these are outweighed by large uncertainties or major risk exposures to adverse
conditions.
    

BB Debt rated 'BB' has less near-term vulnerability to default than other
speculative grade debt. However, it faces major ongoing uncertainties or
exposure to adverse business, financial, or economic conditions that could lead
to inadequate capacity to meet timely interest and principal payments. The 'BB'
rating category is also used for debt subordinated to senior debt that is
assigned an actual or implied 'BBB-' rating.

B Debt rate 'B' has greater vulnerability to default but presently has the
capacity to meet interest payments and principal repayments. Adverse business,
financial, or economic conditions would likely impair capacity or willingness to
pay interest and repay principal. The 'B' rating category also is used for debt
subordinated to senior debt that is assigned an actual or implied 'BB' or 'BB-'
rating.

   
    

                                       31
<PAGE>   101
   
    

                         DUFF & PHELPS CREDIT RATING CO.

AAA      Highest credit quality. The risk factors are negligible, being only
         slightly more than for risk-free U.S. Treasury debt.

   
AA+      High credit quality. Protection factors are strong. Risk is modest but
AA-      may vary slightly from time to time because of economic conditions.
    

   
A+       Protection factors are average but adequate. However, risk factors are
A-       more variable and greater in periods of economic stress.
    


   
BBB+     Below average protection factors but still considered sufficient for
BBB-     prudent investment. Considerable variability in risk during economic 
         cycles.
    

   
BB+      Below investment grade but deemed likely to meet obligations when due.
BB       Present or BB prospective financial protection factors fluctuate
BB-      according to industry conditions or company fortunes. Overall quality 
         may move up or down frequently within this category.
    

   
B+       Below investment grade and possessing risk that obligations will not be
B        met when due. B Financial protection factors will fluctuate widely
B-       according to economic cycles, industry conditions and/or company 
         fortunes. Potential exists for frequent changes in the rating within 
         this category or into a higher or lower rating grade.
    

   
    
                                FITCH IBCA, INC.


                                       32
<PAGE>   102
INVESTMENT GRADE BOND

AAA      Bonds considered to be investment grade and of the highest credit
         quality. The obligor has an exceptionally strong ability to pay
         interest and repay principal, which is unlikely to be affected by
         reasonably foreseeable events.

AA       Bonds considered to be investment grade and of very high credit
         quality. The obligor's ability to pay interest and repay principal is
         very strong, although not quite as strong as bonds rated 'AAA'. Because
         bonds rated in the 'AAA' and 'AA' categories are not significantly
         vulnerable to foreseeable future developments, short-term debt of these
         issuers is generally rated 'F-1+'.

A        Bonds considered to be investment grade and of high credit quality. The
         obligor's ability to pay interest and repay principal is considered to
         be strong, but may be more vulnerable to adverse changes in economic
         conditions and circumstances than bonds with higher ratings.

BBB      Bonds considered to be investment grade and of satisfactory credit
         quality. The obligor's ability to pay interest and repay principal is
         considered to be adequate. Adverse changes in economic conditions and
         circumstances, however, are more likely to have adverse impact on these
         bonds, and therefore impair timely payment. The likelihood that the
         ratings of these bonds will fall below investment grade is higher than
         for bonds with higher ratings.

SPECULATIVE GRADE BOND

BB       Bonds are considered speculative. The obligor's ability to pay interest
         and repay principal may be affected over time by adverse economic
         changes. However, business and financial alternatives can be identified
         which could assist the obligor in satisfying its debt service
         requirements.

B        Bonds are considered highly speculative. While bonds in this class are
         currently meeting debt service requirements, the probability of
         continued timely payment of principal and interest reflects the
         obligor's limited margin of safety and the need for reasonable business
         and economic activity throughout the life of the issue.

   
    


                                       33
<PAGE>   103
   
    

                     DESCRIPTION OF IBCA'S LONG-TERM RATINGS

AAA      Obligations for which there is the lowest expectation of investment
         risk. Capacity for timely repayment of principal and interest is
         substantial, such that adverse changes in business, economic or
         financial conditions are unlikely to increase investment risk
         substantially.

AA       Obligations for which there is a very low expectation of investment
         risk. Capacity for timely repayment of principal and interest is
         substantial. Adverse changes in business, economic or financial
         conditions may increase investment risk, albeit not very significantly.

A        Obligations for which there is a low expectation of investment risk.
         Capacity for timely repayment of principal and interest is strong,
         although adverse changes in business, economic or financial conditions
         may lead to increased investment risk.

BBB      Obligations for which there is currently a low expectation of
         investment risk. Capacity for timely repayment of principal and
         interest is adequate, although adverse changes in business, economic or
         financial conditions are more likely to lead to increased investment
         risk than for obligations in other categories.

BB       Obligations for which there is a possibility of investment risk
         developing. Capacity for timely repayment of principal and interest
         exists, but is susceptible over time to adverse changes in business,
         economic or financial conditions.

B        Obligations for which investment risk exists. Timely repayment of
         principal and interest is not sufficiently protected against adverse
         changes in business, economic or financial conditions.

   
    
            DESCRIPTION OF THOMSON BANKWATCH'S LONG-TERM DEBT RATINGS

INVESTMENT GRADE

AAA      The highest category; indicates that the ability to repay principal and
         interest on a timely basis is very high.


                                       34
<PAGE>   104
AA       The second-highest category; indicates a superior ability to repay
         principal and interest on a timely basis, with limited incremental risk
         compared to issues rated in the highest category.

A        The third-highest category; indicates the ability to repay principal
         and interest is strong. Issues rated "A" could be more vulnerable to
         adverse developments (both internal and external) than obligations with
         higher ratings.

BBB      The lowest investment-grade category; indicates an acceptable capacity
         to repay principal and interest. Issues rated "BBB" are, however, more
         vulnerable to adverse developments (both internal and external) than
         obligations with higher ratings.

NON-INVESTMENT GRADE

BB       While not investment grade, the "BB" rating suggests that the
         likelihood of default is considerably less than for lower-rated issues.
         However, there are significant uncertainties that could affect the
         ability to adequately service debt obligations.

B        Issues rated "B" show a higher degree of uncertainty and therefore
         greater likelihood of default than higher-rated issues. Adverse
         developments could well negatively affect the payment of interest and
         principal on a timely basis.

   
    

              SHORT-TERM NOTES AND VARIABLE RATE DEMAND OBLIGATIONS

                            MOODY'S INVESTORS SERVICE

         Short-term notes/variable rate demand obligations bearing the
designations MIG-1/VMIG-1 are considered to be of the best quality, enjoying
strong protection from established cash flows, superior liquidity support or
demonstrated broad-based access to the market for refinancing. Obligations rated
MIG-2/VMIG-3 are of high quality and enjoy ample margins of protection although
not as large as those of the top rated securities.

                          STANDARD & POOR'S CORPORATION

         An S&P SP-1 rating indicates that the subject securities' issuer has a
strong capacity to pay principal and interest. Issues determined to possess very
strong safety characteristics are given a plus (+) designation. S&P's
determination that an issuer has a satisfactory capacity to pay principal and
interest is denoted by an SP-2 rating.

                                FITCH IBCA, INC.

                                       35


<PAGE>   105
         Obligations supported by the highest capacity for timely repayment are
rated F1+. An F1 rating indicates that the obligation is supported by a very
strong capacity for timely repayment. Obligations rated F2 are supported by a
good capacity for timely repayment, although adverse changes in business,
economic, or financial conditions may affect this capacity.

                                COMMERCIAL PAPER

                            MOODY'S INVESTORS SERVICE

         Prime-1 is the highest commercial paper rating assigned by Moody's.
Issuers (or related supporting institutions) of commercial paper with this
rating are considered to have a superior ability to repay short-term promissory
obligations. Issuers (or related supporting institutions) of securities rated
Prime-2 are viewed as having a strong capacity to repay short-term promissory
obligations. This capacity will normally be evidenced by many of the
characteristics of issuers whose commercial paper is rated Prime-1 but to a
lesser degree.

                          STANDARD & POOR'S CORPORATION

         A Standard & Poor's Corporation ("S&P") A-1 commercial paper rating
indicates a strong degree of safety regarding timely payment of principal and
interest. Issues determined to possess overwhelming safety characteristics are
denoted A-1+. Capacity for timely payment on commercial paper rated A-2 is
satisfactory, but the relative degree of safety is not as high as for issues
designated A-1.

                         DUFF & PHELPS CREDIT RATING CO.

         Duff-1 is the highest commercial paper rating assigned by Duff. Three
gradations exist within this rating category: A Duff-1+rating indicates the
highest certainty of timely payment (issuer short-term liquidity is found to be
outstanding and safety is deemed to be just below that of risk-free short-term
U.S. Treasury obligations), a Duff-1 rating signifies a very high certainty of
timely payment (issuer liquidity is determined to be excellent and risk factors
are considered minor) and a Duff-1-rating denotes high certainty of timely
payment (issuer liquidity factors are strong and risk is very small). A Duff-2
rating indicates a good certainty of timely payment. Liquidity factors and
company fundamentals are sound and risk factors are small.

                                FITCH IBCA, INC.

         F-1+ is the highest category, and indicates the strongest degree of
assurance for timely payment. Issues rated F-1 reflect an assurance of timely
payment only slightly less than issues rated F-1+. Issues assigned an F-2 rating
have a satisfactory degree of assurance for timely payment, but the margin of
safety is not as great as for issues in the first two rating categories.

                    COMMERCIAL PAPER, SHORT-TERM OBLIGATIONS
                     AND DEPOSIT OBLIGATIONS ISSUED BY BANKS

                             THOMSON BANKWATCH (TBW)

         TBW-1 is the highest category and indicates the degree of safety
regarding timely repayment of principal and interest is very high. TBW-2 is the
second highest category and while


                                       36
<PAGE>   106
the degree of safety regarding timely repayment of principal and interest is
strong, the relative degree of safety is not as high as for issues rated
"TBW-1."


                                       37
<PAGE>   107
                                     PART B
                               SCHWAB INVESTMENTS
                              CROSS REFERENCE SHEET
                                       FOR
             SCHWAB CALIFORNIA SHORT/INTERMEDIATE TAX-FREE BOND FUND
                 SCHWAB CALIFORNIA LONG-TERM TAX-FREE BOND FUND
                  SCHWAB SHORT/INTERMEDIATE TAX-FREE BOND FUND
                       SCHWAB LONG-TERM TAX-FREE BOND FUND


<TABLE>
<CAPTION>
Part B Item                                    Statement of Additional Information Caption
- -----------                                    -------------------------------------------
<S>                                            <C>
10.      Cover Page                            Cover Page

11.      Table of Contents                     Table of Contents

12.      General Information and History       General Information

13.      Investment Objectives and Policies    Investment Securities; Investment
                                               Restrictions

14.      Management of the Fund                Management of the Trust

15.      Control Persons and Principal         General Information
         Holders of Securities

16.      Investment Advisory and Other         Management of the Trust
         Services

17.      Brokerage Allocation and Other        Portfolio Transactions and Turnover
         Practices

18.      Capital Stock and Other Securities    General Information

19.      Purchase, Redemption and Pricing of   Share Price Calculation;
         Securities Being Offered              Purchase and Redemption of Shares

20.      Tax Status                            Taxes

21.      Underwriters                          Management of the Trust

22.      Calculation of Performance Data       Total Return and Yield

23.      Financial Statements                  Financial Statements
</TABLE>
<PAGE>   108
                       STATEMENT OF ADDITIONAL INFORMATION

                               SCHWAB INVESTMENTS
                 101 Montgomery Street, San Francisco, CA 94104

   
                                NOVEMBER 4, 1998
    

   
This Statement of Additional Information (SAI) is not a prospectus. It should be
read in conjunction with the Prospectus for the Schwab Long-Term Tax-Free Bond
Fund (the Long-Term Tax-Free Fund) and the Schwab Short/Intermediate Tax-Free
Bond Fund (the Short/Intermediate Tax-Free Fund), dated November 4, 1998, and
the Prospectus for the Schwab California Long-Term Tax-Free Bond Fund (the
California Long-Term Tax-Free Fund) and the Schwab California Short/Intermediate
Tax-Free Bond Fund (the California Short/Intermediate Tax-Free Fund), dated
November 4, 1998, (the Funds).
    

   
To obtain a copy of either Prospectus, please contact Charles Schwab & Co., Inc.
(Schwab) at 1-800-435-4000, 24 hours a day or 101 Montgomery Street, San
Francisco, California 94104. TDD users may contact Schwab at 800-345-2550, 24
hours a day. These Prospectuses also may be available electronically by using
the SchwabFunds(R) World Wide Web address: http://www.schwab.com/schwabfunds.
    

   
                                 SCHWABFunds(R)
                                 800-435-4000
    

                                TABLE OF CONTENTS

   
<TABLE>
<CAPTION>
                                                                            PAGE
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<S>                                                                         <C>
INVESTMENT SECURITIES.....................................................    2
INVESTMENT RESTRICTIONS...................................................    9
MANAGEMENT OF THE TRUST...................................................   12
PORTFOLIO TRANSACTIONS AND TURNOVER.......................................   16
TAXES.....................................................................   17
SHARE PRICE CALCULATION...................................................   20
TOTAL RETURN AND YIELD....................................................   21
GENERAL INFORMATION.......................................................   22
PURCHASE AND REDEMPTION OF SHARES.........................................   24
OTHER INFORMATION.........................................................   24
FINANCIAL STATEMENTS......................................................   25
APPENDIX - RATINGS OF INVESTMENT SECURITIES...............................   25
</TABLE>
    


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<PAGE>   109
                              INVESTMENT SECURITIES

MUNICIPAL SECURITIES. Municipal securities are debt securities issued by a
state, its political subdivisions, agencies, authorities and corporations. These
securities may be issued to obtain money for various public purposes, including
the construction of a wide range of public facilities such as airports, bridges,
highways, housing, hospitals, mass transportation, public utilities, schools,
streets, and water and sewer works. Other public purposes include refunding
outstanding obligations, obtaining funds for general operating expenses and
obtaining funds to loan to other public institutions and facilities. Municipal
securities may be owned directly or through participation interests, and pay
fixed, floating or variable rates of interest. A participation interest is an
undivided interest in a municipal security.

Municipal securities also may be issued to finance various private activities,
including certain types of private activity bonds ("industrial development
bonds" under prior law). These securities may be issued by or on behalf of
public authorities to obtain funds to provide certain privately owned or
operated facilities. The Funds may not be desirable investments for "substantial
users" of facilities financed by private activity bonds or industrial
development bonds or for "related persons" of substantial users because
distributions from the Funds attributable to interest on such bonds may not be
tax-exempt. Shareholders should consult their own tax advisers regarding the
potential effect on them (if any) of any investment in these Funds.

Municipal securities are generally classified as "general obligation" or
"revenue." General obligation notes are secured by the issuer's pledge of its
full credit and taxing power for the payment of principal and interest. Revenue
notes are payable only from the revenues derived from a particular facility or
class of facilities or, in some cases, from the proceeds of a special excise or
other specific revenue source. Private activity bonds and industrial development
bonds are, in most cases, revenue bonds and generally do not constitute the
pledge of the credit of the issuer of such bonds.

Examples of municipal securities that are issued with original maturities of one
year or less are short-term tax anticipation notes, bond anticipation notes,
revenue anticipation notes, construction loan notes, pre-refunded municipal
bonds and tax-free commercial paper. Tax anticipation notes are typically sold
to finance working capital needs of municipalities in anticipation of the
receipt of property taxes on a future date. Bond anticipation notes are sold on
an interim basis in anticipation of a municipality's issuance of a longer-term
bond in the future. Revenue anticipation notes are issued in expectation of the
receipt of other types of revenue such as that available under the Federal
Revenue Sharing Program. Construction loan notes are instruments insured by the
Federal Housing Administration with permanent financing by "Fannie Mae" (the
Federal National Mortgage Association) or "Ginnie Mae" (the Government National
Mortgage Association) at the end of the project construction period.
Pre-refunded municipal bonds are bonds that are not yet refundable, but for
which securities have been placed in escrow to refund an original municipal bond
issue when it becomes refundable. Tax-free commercial paper is an unsecured
promissory obligation issued or guaranteed by a municipal issuer. The Funds may
purchase other municipal securities similar to the foregoing, which are or may
become available, including securities issued to pre-refund other outstanding
obligations of municipal issuers.

The value of municipal securities may be affected by uncertainties with respect
to the rights of holders of municipal securities in the event of bankruptcy or
the taxation of municipal securities as a result of legislation or litigation.
For example, under federal law, certain issuers of municipal securities may be
authorized in certain circumstances to initiate bankruptcy proceedings without
prior notice to or the consent of creditors. Such action could result in
material adverse changes in the rights of holders of the securities. In
addition, litigation challenging the validity under the state constitutions of
present systems of financing public education has been initiated or adjudicated
in a number of states, and legislation has been introduced to effect changes in
public school finances in some states. In other instances there has been
litigation challenging the issuance of pollution control revenue bonds or the
validity of their issuance under state or federal law, which ultimately could
affect the validity of those municipal securities or the tax-free nature of the
interest thereon.

The Investment Manager relies on the opinion of the issuer's counsel, which is
rendered at the time the security is issued, to determine whether the security
is fit, with respect to its tax status, to be purchased by a Fund.


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<PAGE>   110
ILLIQUID SECURITIES. Investments that cannot be sold or disposed of in the
normal course of business within seven days at their approximate value will be
considered illiquid. The Investment Manager determines the liquidity of a Fund's
investments under the supervision and direction of the Board of Trustees.
Investments currently considered illiquid include repurchase agreements not
maturing within seven days, some restricted securities and municipal lease
obligations.

TAXABLE SECURITIES. Under normal conditions, the Funds do not intend to invest
in securities the interest on which is subject to federal income and/or state
and local personal income taxes. However, from time to time, as a defensive
measure or under abnormal market conditions, the Funds may make temporary
investments in securities the interest on which is subject to federal income
and/or state and local personal income taxes.

U.S. GOVERNMENT SECURITIES. U.S. Government securities are securities issued by
the U.S. Treasury or issued or guaranteed by the U.S. Government or any of its
agencies or instrumentalities. U.S. Treasury securities are backed by the full
faith and credit of the United States. Not all U.S. Government securities are
backed by the full faith and credit of the United States. Some U.S. Government
securities are supported by a line of credit the issuing entity has with the
U.S. Treasury. Others are supported solely by the credit of the issuing agency
or instrumentality. Of course U.S. Government securities are among the safest
securities, but they are still sensitive to interest rate changes, which will
cause their yields to fluctuate.

   
ASSET-BACKED SECURITIES. Asset-Backed securities are securities that are backed
by the loans or accounts receivables of an entity, such as a bank or credit card
company. These securities are obligations which the issuer intends to repay
using the assets backing them (once collected). Therefore, repayment depends
largely on the cash-flows generated by the assets backing the securities.
Sometimes the credit support for these securities is limited to the underlying
assets, but, in other cases, may be provided by a third party via a letter of
credit or insurance guarantee. Asset-backed securities are subject to credit and
prepayment risks. Currently, there are no tax-exempt Asset-Backed securities in
the Funds.
    

Repayment of these is intended to be obtained from an identified pool of assets,
typically receivables related to a particular industry, such as asset-backed
securities related to credit card receivables, automobile receivables, trade
receivables or diversified financial assets. Based on the primary
characteristics of the various types of asset-backed securities, for purposes of
each Fund's concentration policy, each of the Funds has selected the following
asset-backed securities industries: credit card receivables, automobile
receivables, trade receivables and diversified financial assets, and each Fund
will limit its investments in each such industry to less than 25% of its total
assets.

MONEY MARKET SECURITIES. Money market securities are high-quality, short-term
debt securities that may be issued by entities such as the U.S. Government,
corporations and financial institutions (like banks). Money market securities
include commercial paper, certificates of deposit, banker's acceptances and time
deposits.

Restriction: Each Fund will invest only in certificates of deposit and bankers'
acceptances of banks that have capital, surplus and undivided profits in excess
of $100 million.

REPURCHASE AGREEMENTS. Repurchase agreements involve a Fund buying securities
(usually U.S. Government securities) from a seller and simultaneously agreeing
to sell them back at an agreed-upon price (usually higher) and time. There are
risks that losses will result if the seller does not perform as agreed.

LENDING. The lending of securities is a common practice in the securities
industry. A Fund will engage in security lending arrangements with the primary
objective of increasing its income through investment of the cash collateral in
short-term, interest-bearing obligations, but will do so only to the extent that
the Fund will not lose the tax treatment available to regulated investment
companies. The Fund is entitled to all dividends or interest on any loaned
securities. Loans of securities involve a risk that the borrower may fail to
return the securities or provide additional collateral.


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<PAGE>   111
The Funds may loan securities to qualified broker-dealers or other institutional
investors provided: (i) the loan is secured continuously by collateral
consisting of U.S. Government securities, letters of credit, cash or
cash-equivalents, and maintained on a daily marked-to-market basis in an amount
at least equal to the current market value of the securities loaned; (ii) the
Fund may at any time call the loan and obtain the return of the securities
loaned; (iii) the Fund will receive any interest or dividends paid on the loaned
securities; and (iv) the aggregate market value of securities loaned will not at
any time exceed one-third of the total assets of the Fund.

ZERO COUPON SECURITIES do not pay interest, instead these securities are sold at
less than their face value, and redeemed at their face value upon maturity. As a
result of this structure, their prices can be very volatile in response to
interest rate changes.

QUALITY OF INVESTMENTS. The Funds will invest in investment-grade quality
securities. Investment-grade quality includes securities that are rated in one
of the four highest rating categories by any nationally recognized statistical
rating organization (NRSRO). When securities are unrated, the Investment Manager
may deem them to be of comparable quality pursuant to guidelines adopted by the
Board of Trustees. Each Fund will limit its investments in unrated securities to
no more that 20% of its net assets. Should a security's investment-grade quality
change after purchase by a Fund, the Investment Manager would take such action,
including no action, as determined to be in the best interest of the Fund by the
Board of Trustees. For more information about the ratings assigned by some
NRSROs, refer to the Appendix section of the SAI.

RISK FACTORS FOR CALIFORNIA MUNICIPAL SECURITIES. In addition to general
economic pressures which affect the State of California's (the "State") ability
to raise revenues to meet its financial obligations, certain State
constitutional amendments, legislative measures, executive orders,
administrative regulations and voter initiatives could also result in the
adverse effects described below. The following information is only a brief
summary, is not a complete description and is based on information drawn from
official statements and prospectuses relating to securities offerings of the
State that have come to the attention of the Trust and were available before the
date of this SAI. The Trust has not independently verified the accuracy and
completeness of the information contained in those statements and prospectuses.

As used in this section, "California Municipal Securities" includes issues that
are secured by a direct payment obligation of the State and obligations of
issuers that rely in whole or in part on State revenues for payment of their
obligations. Property tax revenues and part of the State's General Fund surplus
are distributed to counties, cities and their various taxing entities; whether
and to what extent a portion of the State's General Fund will be distributed in
the future to them is unclear.

   
Overview. After suffering through a severe recession, since the start of 1994
California's economy has been on a steady recovery. The rate of economic growth
in California in 1997, in terms of job gains, exceeded that of the rest of the
United States. The State added nearly 430,000 non-farm jobs during 1997. In 1996
California surpassed its pre-recession employment peak of 12.7 million jobs. The
unemployment rate, while still higher than the national average, fell to 5.8% in
June 1998, compared to over 10 percent during the recession. Many of the new
jobs were created in such industries as computer services, software design,
motion pictures and high technology manufacturing. Business services, export
trade and other manufacturing also experienced growth. All major economic
regions of the State grew. The rate of employment growth for the Los Angeles
region indicates that its growth has almost caught up with that in the San
Francisco bay region on a population share basis. The unsettled financial
situation occurring in certain Asian economies, and its spillover effect
elsewhere, may adversely affect the State's export-related industries and,
therefore, the State's rate of economic growth.
    

   
The recession seriously affected State tax revenues and caused an increase in
expenditures for health and welfare programs. As a result, from the late 1980s
through 1992-1993, the State experienced recurring budget deficits. During this
period, expenditures exceeded revenues in four out of six years, and the State
accumulated a budget deficit of about $2.8 billion at its peak at June 30, 1993.
One consequence of the large budget imbalances was to significantly reduce the
State's available cash resources and force the State to use a series of external
borrowings to meet its cash needs. With the end of the recession, the State's
financial condition has improved in the 1995-96, 
    


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<PAGE>   112
   
1996-97 and 1997-1998 fiscal years, with a combination of better than expected
revenues, slowdown in growth of social welfare programs, and continued spending
restraint. No deficit borrowing has occurred at the end of the last three fiscal
years and the State's cash flow borrowing was limited to $3 billion in
1997-1998. The California Department of Finance estimates that the State's
budget reserve in the Special Fund for Economic Uncertainties (SFEU) totaled
$639.8 million as of June 30, 1997 and $1.782 billion at June 30, 1998.
    

   
As a result of the deterioration in the State's budget and cash situation, the
State's credit ratings have been reduced. Since October 1992, all three major
nationally recognized statistical rating organizations lowered the State's
general obligation bond rating from the highest ranking of "AAA." The State's
general obligation bonds are now rated "A+" by Standard and Poor's Corporation
("S&P"), "Aa3" by Moody's Investors Service, Inc. ("Moody's") and "AA" by Fitch
IBCA, Inc. ("Fitch").
    

   
State Appropriations Limit. Subject to certain exceptions, the State is subject
to an annual appropriations limit imposed by its Constitution on "proceeds of
taxes." Various expenditures, including but not limited to debt service on
certain bonds and appropriations for qualified capital outlay projects, are not
included in the appropriations limit.
    

                               1996-97 FISCAL YEAR

The Governor's proposed budget for 1996-1997 projected General Fund revenues and
transfers of about $45.6 billion and proposed total General Fund appropriations
of about $45.2 billion. The Governor's proposed budget renewed a proposal, which
had been rejected by the Legislature in 1995, for a 15% cut in personal and
corporate tax rates, phased in over a three-year period. In May 1996, the State
Department of Finance updated revenue estimates to $47.1 billion for 1996-1997,
assuming enactment of the Governor's proposed tax cut, and expenditure estimates
to $46.5 billion.

Revenues. The 1996-1997 Budget Act, enacted on July 15, 1996, rejected the
Governor's proposed 15% tax cut (but did include a 5% cut in bank and
corporation taxes). Consequently, revenues for 1996-1997 were increased to an
estimated $47.6 billion. Special fund revenues are estimated to be $13.3
billion. The 1996-1997 Budget Act appropriated a budget reserve of $305 million
at June 30, 1997. This budget reserve assumed savings of about $660 million in
the State's health and welfare costs based on changes to federal law, including
welfare reform. The federal welfare reform legislation passed in August 1996 is
projected to provide only about $360 million of the assumed $660 million in
savings, however, subject to further adjustment based on how the State
implements changes to its welfare system. Other principal features of the
1996-1997 Budget Act include an increase in Proposition 98 funding for K-14
schools of about $1.6 billion, and about $700 million in new federal aid for
costs of illegal immigrants (with about $540 million to be received during
1996-1997).

Expenditures. The 1996-1997 Budget Act included General Fund appropriations of
about $47.2 billion, a 4% increase over the final estimated 1995-1996
expenditures. Special Fund expenditures were budgeted at $12.6 billion.

                               1997-98 FISCAL YEAR

Revenues. The 1997-1998 Budget Act anticipates General Fund revenues and
transfers of $52.5 billion (a 6.8 percent increase over the final 1996-1997
levels) and Special Fund revenues of $14.0 billion. Following enactment of the
Budget Act, the State implemented its annual cash flow borrowing program,
issuing $3 billion of notes, which mature on June 30, 1998.

Expenditures. The 1997-1998 Budget includes General Fund expenditures of $52.8
billion (an 8.0 percent increase from the 1996-1997 levels). Special Fund
expenditures of $14.4 billion, and $2.1 billion of expenditures from various
Bond Funds. On a budgetary basis, the budget reserve is projected to decrease
from $408 million at June 30, 1997 to $112 million at June 30, 1998. The 1997-98
Budget Act increases funding for K-14 education, reflects a $1.235 billion
pension case judgment payment, increases funding for the University of
California and California State University and continues most other State
programs at 1996-1997 levels. Unlike prior years, this Budget Act does not
depend on uncertain federal budget actions.


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<PAGE>   113
Subsequent to the adoption and signature of the Budget Act, the Governor and
Legislature reached certain agreements related to State expenditures and taxes,
including, on an annual basis, support for a $931 million tax cut (by full
implementation in the 1999-2000 fiscal year) aimed primarily at middle income
families but also including businesses, and for $480 million to provide health
insurance for uninsured children, $450 million to pay for county courts, $300
million for pay raises for state employees, and $52 million tuition cuts for
California public universities and community colleges. These agreements mostly
will affect budgets in future fiscal years and their impact on the State's
budget and the State's support for local government is uncertain.

   
                               1998-99 FISCAL YEAR
    

   
The Governor's proposed 1998-99 Fiscal Year Budget released on January 9, 1998,
projected General Fund revenues for the 1998-99 Fiscal Year of $55.4 billion,
and proposed expenditures in the same amount. The Governor's May Revision to the
1998-99 Budget ("May Revision"), released on May 14, 1998, projected revenues
for the 1997-98 and 1998-99 Fiscal Years which combined would be more than $4.2
billion higher than was projected in January. The Governor proposed that most of
this increased revenue be dedicated to fund a 75% cut in the Vehicle License Fee
("VLF"). The VLF proposal met significant opposition in the Legislature, in
part, because VLF is a primary source of revenue for local governments.
    

   
The Legislature passed the 1998-99 Budget Bill on August 11, 1998, and the
Governor signed it on August 21, 1998. In signing the Budget Bill, the Governor
used his line-item veto power to reduce expenditures by $1.360 billion from the
General Fund, and $160 million from Special Funds. Of this total, the Governor
indicated that about $250 million of vetoed funds were "set aside" to fund
programs for education. Vetoed items included education funds, salary increases
and many individual resources and capital projects.
    

   
Revenues. The 1998-99 Budget Act is based on projected General Fund revenues and
transfers of $57.0 billion (after giving effect to various tax reductions
enacted in 1997 and 1998), a 4.2% increase from the revised 1997-98 figures.
Special Fund revenues were estimated at $14.3 billion. The revenue projections
were based on the May Revision and may be overstated in light of worsening
economic problems in various international markets.
    

   
Expenditures. After giving effect to the Governor's vetoes, the Budget Act
provides authority for expenditures of $57.3 billion from the General Fund (a
7.3% increase from 1997-98), $14.7 billion from Special Funds, and $3.4 billion
from bond funds. The Budget Act projects a balance in the SFEU at June 30, 1999
(but without including the "set aside" veto amount) of $1.255 billion, a little
more than 2% of General Fund revenues. The Budget Act assumes the State will
carry out its normal intra-year cash flow borrowing in the amount of $1.7
billion of revenue anticipation notes, which are expected to be issued in
October 1998.
    

   
The most significant feature of the 1998-99 budget was agreement on a total of
$1.4 billion of tax cuts. The central element is a bill which provides for a
phased-in reduction of the VLF. Since the VLF is currently transferred to cities
and counties, the bill provides for the General Fund to replace the lost
revenues. Starting on January 1, 1999, the VLF will be reduced by 25%, at a cost
to the General Fund of approximately $500 million in the 1998-99 Fiscal Year and
about $1 billion annually thereafter. Local government concern about the
potential impact of the Governor's original VLF proposal at the time of the May
Revision underscores the extent to which California city and county budgets are
affected by State budget decisions beyond their control.
    

   
In addition to the cut in VLF, the 1998-99 budget includes both temporary and
permanent increase in the personal income tax dependent credit ($612 million
General Fund cost in 1998-99, but less in future years), a nonrefundable renters
tax credit ($133 million), and various targeted business tax credits ($106
million). About half of the business tax credits will only become effective if
Proposition 7, an initiative measure which includes various tax credits, is
rejected by the voters on the November 3, 1998 ballot.
    

   
Other significant elements of the 1998-99 Budget Act include increased funding
for schools, higher education, health, welfare and social service programs, and
trial courts and prisons. The Budget also includes new funding for natural
resources projects, dedication of $376 million of General Fund moneys for
capital outlay projects, funding 
    


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<PAGE>   114
   
of a 3% State employee salary increase, funding of 2,000 new Department of
Transportation positions to accelerate transportation construction projects, and
funding of the California Infrastructure and Economic Development Bank ($50
million).
    

   
The State of California received approximately $167 million of federal
reimbursements to offset costs related to the incarceration of undocumented
alien felons for federal fiscal year 1997. The State anticipates receiving
approximately $195 million in federal reimbursements for federal fiscal year
1998.
    

   
After the Budget Act was signed, and prior to the close of the Legislative
session on August 31, 1998, the Legislature passed a variety of fiscal bills. On
a net basis, most of these costs had already been assumed in 1998-99 Budget Act.
    

   
The foregoing discussion of the 1996-1997, 1997-1998 and 1998-1999 Budgets is
based upon the Budget Acts for these years, and should not be construed as a
statement of fact. The assumptions used to construct a budget, which include
estimates and projections of revenues and expenditures, may be affected by
numerous factors, including future economic conditions in the State and the
Nation. There can be no assurances that any estimates will be achieved.
    

ISSUES AFFECTING LOCAL GOVERNMENTS AND SPECIAL DISTRICTS IN CALIFORNIA.

Proposition 13. Certain California Municipal Securities may be obligations of
issuers that rely in whole or in part on ad valorem real property taxes as a
source of revenue. In 1978, California voters approved Proposition 13, which
limits ad valorem taxes on real property and restricts the ability of taxing
entities to increase property tax and other tax revenues.

With certain exceptions, the maximum ad valorem tax on real property is limited
to 1% of the full cash value to be collected by the counties and apportioned
according to law. One exception is for debt service on bonded indebtedness if
such is approved by two-thirds of the votes cast by voters voting on the
proposition. The full cash value may be adjusted annually to reflect inflation
at a rate not to exceed 2% per year, or reduction in the consumer price index or
comparable local data, or reduced in the event of declining property value
caused by substantial damage, destruction or other factors, or adjusted when
there is a "change in ownership" or "new construction."

Proposition 62. This initiative, approved by voters in 1986, placed further
restrictions on the ability of local governments to raise taxes and allocate
approved tax revenues. Although some of the California Courts of Appeal held
that parts of Proposition 62 were unconstitutional, the California Supreme Court
recently issued a decision that upheld Proposition 62's requirement that special
taxes be approved by a two-thirds vote of the voters voting in an election on
the issue. This recent decision may invalidate other taxes that have been
imposed by local governments in California and make it more difficult for local
governments to raise taxes.

Propositions 98 and 111. These initiatives changed the State appropriations
limit and State funding of public education below the university level by
guaranteeing K-14 schools a minimum share of General Fund revenues. The
initiatives require that the State establish a prudent state reserve fund for
public education.

Proposition 218. Passed in November 1996, this initiative places additional
limitations on the ability of California local governments to increase or impose
general taxes, special assessments, and many fees by requiring voter approval of
such items. General taxes and many assessments and fees that were passed without
public approval after 1994 and before November 6, 1996 must now be approved by
voters by either July 1, 1997 or November 6, 1998 to continue in effect.

Appropriations Limit. Local governmental entities are also subject to annual
appropriations limits. If a local government's revenues in any year exceed the
amount permitted to be spent, the excess must be returned to the public through
a revision of tax rates or fee schedules over the following two years.


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<PAGE>   115
   
Initiative on November 3, 1998 Ballot. Proposition 9 would overturn certain
aspects of legislation enacted in 1996 and 1997 to deregulate the electric
industry in California. As part of this deregulation, the three investor owned
utilities in California issued about $6 billion in aggregate of "rate reduction
bonds" to finance the stranded costs of certain uneconomic facilities. These
bonds are repaid through a surcharge placed on residential and small business
customers' bills. The legislation authorizing issuance of these bonds included a
pledge that the State would not interfere with the levying of these surcharges
without providing other means to repay the bonds. One part of Proposition 9
would be the cancellation of the utilities' authority to collect these
surcharges. If proposition 9 is approved by the voters, it is anticipated that
litigation will be filed to declare the initiative unconstitutional. Because of
the uncertainty of litigation, it is not possible to predict whether any State
General Fund moneys eventually might be required to repay the rate reduction
bonds.
    

Conclusion. The effect of these constitutional and statutory changes and of
budget developments on the ability of California issuers to pay interest and
principal on their obligations remains unclear, and may depend on whether a
particular bond is a general obligation or limited obligation bond (limited
obligation bonds are generally less affected). There is no assurance that any
California issuer will make full or timely payments of principal or interest or
remain solvent. For example, in December 1994, Orange County filed for
bankruptcy. The California Municipal Bond Funds' concentration in California
Municipal Securities provides a greater level of risk than a fund that is
diversified across numerous states and municipal entities.

ADDITIONAL RISK FACTORS FOR CALIFORNIA MUNICIPAL SECURITIES.

Mortgages and Deeds of Trust. The California Municipal Bond Funds may invest in
issues which are secured in whole or in part by mortgages or deeds of trust on
real property. California law limits the remedies of a creditor secured by a
mortgage or deed of trust, which may result in delays in the flow of revenues to
an issuer.

Lease Financings. Some local governments and districts finance certain
activities through lease arrangements. It is uncertain whether such lease
financings are debt that require voter approval.

Seismic Risk. It is impossible to predict the time, magnitude or location of a
major earthquake or its effect on the California economy. In January 1994, a
major earthquake struck Los Angeles, causing significant damage to structures
and facilities in a four county area. The possibility exists that another such
earthquake could create a major dislocation of the California economy.

   
YEAR 2000:  STATE OF CALIFORNIA
    

   
The State's reliance on information technology in every aspect of its operations
has made Year 2000-related ("Y2K") information technology ("IT") issues a high
priority for the State. The Department of Information Technology ("DOIT"), an
independent office reporting directly to the Governor, is responsible for
ensuring the State's information technology processes are fully functional
before the year 2000. The DOIT has created a Year 2000 Task Force and a
California 2000 Office to establish statewide policy requirements, to gather,
coordinate, and share information, and to monitor statewide progress. In
December 1996, the DOIT began requiring departments to report on Y2K activities
and currently requires departmental monthly reporting of Y2K status. The DOIT
has emphasized to departments that efforts should be focused on applications
that support mission-critical business practices.
    

   
The risks posed by Y2K information technology related issues are not confined to
computer systems, but also include problems presented by embedded microchips
(products or systems that contain microchips to perform functions such as
traffic control, instruments used in hospitals or medical laboratories, and
California Aqueduct monitoring). To address these problems, the Governor issued
Executive Order W-163-97, broadening the responsibilities for the DOIT to
resolve these issues as well as legal questions associated with Y2K issues. The
executive order also required that mission critical systems be remediated by
December 31, 1998, that purchases of new systems, hardware, software and
equipment be Y2K compliant and further limited new computer projects to those
required by law until a department's Y2K problems are resolved. The DOIT has
also more recently required 
    


8
<PAGE>   116
   
departments to address interfacing of State IT systems with external IT systems,
and to report on contingency planning status for problems which might occur if
IT systems are not fully remediated by the end of 1999.
    

   
Although the DOIT reports that State departments are making substantial progress
overall toward the goal of Y2K compliance, the task is very complex and will
likely encounter unexpected difficulties. The State has not predicted whether
all mission critical systems will be ready and tested by late 1999 or what
impact failure of any particular IT system(s) or of outside interfaces with
State IT systems might have.
    

   
The State Treasurer's Office and the State Controller's Office report that they
are both on schedule to complete their Y2K remediation projects by December 31,
1998, allowing full testing during 1999. These systems include debt service
payments on State debt and the State fiscal and accounting system. There can be
no assurance that steps being taken by California state or local government
agencies with respect to the Y2K problem will be sufficient to avoid any
material adverse impact upon the budgets or operations of those agencies or upon
the Fund.
    

   
The Investment Manager and the Funds generally do not conduct an analysis of the
Y2K preparedness of California State or any other state and local governments or
authorities prior to purchasing these issuers' securities for a Fund's
portfolio. This discussion is based on publicly available information about Y2K
efforts that was provided by the State of California, and has not been
independently verified by the Investment Manager or the Funds. In addition, the
discussion does not address potential risks associated with the computer systems
of California local governments and authorities.
    

   
In addition to historical information, this discussion contains forward-looking
statements that reflect certain government officials' publicly stated
expectations about Y2K preparedness. Achievement of the expressed expectations
is subject to certain risks and uncertainties that could cause actual results to
differ materially from the expressed expectations. An important factor that may
cause such differences includes the unknown risks associated with Y2K computer
system conversions or remediation.
    

                             INVESTMENT RESTRICTIONS

         Except as otherwise noted, the restrictions below are fundamental and
cannot be changed without approval of the holders of a majority of the
outstanding voting securities (as defined in the 1940 Act) of the Fund to which
they apply.

EACH FUND MAY NOT:

         1) As to 75% of its assets, purchase securities of any issuer (other
than obligations of, or guaranteed by, the U.S. Government, its agencies or
instrumentalities) if, as a result, more than 5% of the value of its total
assets would be invested in the securities of such issuer, except that, with
respect to the California Long-Term Tax-Free Fund, provided that no more than
25% of the Fund's total assets would be invested in the securities of a single
issuer, up to 50% of the Fund's total assets may be invested without regard to
this 5% limitation; and, provided further, that, with respect to the California
Short/Intermediate Tax-Free Fund, Long-Term Tax-Free Fund and Short-Intermediate
Tax-Free Fund, and as a matter of non-fundamental policy that may be changed by
the Board of Trustees, so long as no more than 25% of the Fund's total assets
would be invested in the securities of a single issuer, up to 50% of the Fund's
total assets may be invested without regard to the 5% limitation set forth
above.

         2) Purchase securities (other than securities issued or guaranteed by
the U.S. Government, its agencies or instrumentalities) if, as a result of such
purchase, 25% or more of the value of its total assets would be invested in any
industry. Securities issued by governments or political subdivisions or
authorities of governments are not considered to be securities subject to this
industry concentration restriction.


9
<PAGE>   117
         3) Invest more than 10% of the total value of its net assets in
illiquid securities, including repurchase agreements with maturities in excess
of seven days.

         4) Purchase or retain securities of an issuer if any of the officers,
trustees or directors of the Trust or the Investment Manager individually own
beneficially more than 1/2 of 1% of the securities of such issuer and together
beneficially own more than 5% of the securities of such issuer.

         5) Purchase or sell commodities or real estate, including interests in
real estate limited partnerships, provided that each Fund may (i) purchase
securities of companies that deal in real estate or interests therein, and (ii)
purchase or sell futures contracts, options contracts, equity index
participations and index participation contracts.

         6) Invest for the purpose of exercising control or management of
another issuer.

         7) Purchase securities of other investment companies, except as
permitted by the 1940 Act.

         8) Lend money to any person, except that each Fund may (i) purchase a
portion of an issue of short-term debt securities or similar obligations
(including repurchase agreements) that are publicly distributed or customarily
purchased by institutional investors, and (ii) lend its portfolio securities.

         9) Borrow money except from banks as a temporary measure to satisfy
redemption requests or for extraordinary or emergency purposes and then only in
an amount not to exceed one-third of the value of its total assets (including
the amount borrowed), provided that the Fund will not purchase securities while
borrowings represent more than 5% of its total assets.

         10) Pledge, mortgage or hypothecate any of its assets except that to
secure allowable borrowings, each Fund may do so with respect to no more than
10% of its net assets.

         11) Underwrite securities issued by others except to the extent it may
be deemed to be an underwriter, under the federal securities laws, in connection
with the disposition of securities from its investment portfolio.

The following restrictions are non-fundamental and may be changed by the Board
of Trustees.

EACH FUND MAY NOT:

         1) Purchase more than 10% of any class of securities of any issuer if,
as a result of such purchase, it would own more than 10% of such issuer's
outstanding voting securities.

         2) Invest more than 5% of its total assets in securities of issuers
(other than obligations of, or guaranteed by the U.S. Government, its agencies
or instrumentalities) that with their predecessors have a record of less than
three years continuous operation.

         3) Purchase securities that would cause more than 5% of its net assets
to be invested in restricted securities, excluding restricted securities
eligible for resale pursuant to Rule 144A under the Securities Act of 1933 that
have been determined to be liquid under procedures adopted by the Trust's Board
of Trustees based upon the trading markets for the securities.

         4) Invest more than 5% of its net assets in warrants, valued at the
lower of cost or market, and no more than 40% of this 5% may be invested in
warrants that are not listed on the New York Stock Exchange or the American
Stock Exchange, provided, however, that for purposes of this restriction,
warrants acquired by a Fund in units or attached to other securities are deemed
to be without value.


                                       10
<PAGE>   118
         5) Purchase puts, calls, straddles, spreads or any combination thereof
if by reason of such purchase the value of its aggregate investment in such
securities would exceed 5% of the Fund's total assets.

         6) Make short sales, except for short sales against the box.

         7) Purchase or sell interests in oil, gas or other mineral development
programs or leases, although it may invest in companies that own or invest in
such interests or leases.

         8) Purchase securities on margin, except such short-term credits as may
be necessary for the clearance of purchases and sales of securities.

         9) Purchase securities the income of which is subject to federal
alternative minimum tax if, by reason of such purchase, the total income earned
by such securities would exceed 20% of all income earned by the Fund.

         10) Purchase an unrated security, if, as a result, more than 20% of its
net assets would be invested in unrated securities.

         11) Invest more than 25% of its total assets in when-issued and
delayed-delivery securities, or purchase such securities for speculative
purposes.

         12) Each Fund will normally invest at least 65% of its total assets in
securities deemed by the Investment Manager to be bonds.

Note that with respect to nonfundamental restriction (3), each Fund does not
currently intend to invest more than 5% of its total assets in restricted
securities eligible for resale pursuant to Rule 144A under the Securities Act of
1933 that have been determined to be liquid under procedures adopted by the
Trust's Board of Trustees based upon the trading markets for the securities.


11
<PAGE>   119
   
                            MANAGEMENT OF THE FUNDS
    

   
The officers and trustees, their principal occupations during the past five
years and their affiliations, if any, with The Charles Schwab Corporation,
Charles Schwab & Co., Inc. (Schwab) and Charles Schwab Investment Management,
Inc., (CSIM or the investment manager), are as follows:
    

   
<TABLE>
<CAPTION>
                        POSITION(S) WITH          PRINCIPAL  OCCUPATIONS &
NAME/DATE OF BIRTH      THE TRUSTS                AFFILIATIONS
- ------------------      ----------                ------------
<S>                     <C>                       <C>
CHARLES R. SCHWAB*      Chairman and Trustee      Chairman, Co-Chief Executive
July 29, 1937                                     Officer and Director, The
                                                  Charles Schwab Corporation;
                                                  Chairman, Chief Executive
                                                  Officer and Director, Charles
                                                  Schwab Holdings, Inc.;
                                                  Chairman and Director, Charles
                                                  Schwab & Co., Inc., Charles
                                                  Schwab Investment Management,
                                                  Inc., The Charles Schwab Trust
                                                  Company and Schwab Retirement
                                                  Plan Services, Inc.; Chairman
                                                  and Director (current board
                                                  positions), and Chairman
                                                  (officer position) until
                                                  December 1995, Mayer &
                                                  Schweitzer, Inc. (a securities
                                                  brokerage subsidiary of The
                                                  Charles Schwab Corporation);
                                                  Director, The Gap, Inc. (a
                                                  clothing retailer),
                                                  Transamerica Corporation (a
                                                  financial services
                                                  organization), AirTouch
                                                  Communications (a
                                                  telecommunications company)
                                                  and Siebel Systems (a software
                                                  company).

STEVEN L. SCHEID*+      President and Trustee     Executive Vice President and
June 28, 1953                                     Chief Financial Officer, The
                                                  Charles Schwab Corporation;
                                                  Enterprise President -
                                                  Financial Products and
                                                  Services and Chief Financial
                                                  Officer, Charles Schwab & Co.,
                                                  Inc.; Chief Executive Officer,
                                                  Chief Financial Officer and
                                                  Director, Charles Schwab
                                                  Investment Management, Inc.
                                                  From 1994 to 1996, Mr. Scheid
                                                  was Executive Vice President
                                                  of Finance for First
                                                  Interstate Bancorp and was
                                                  Principal Financial Officer
                                                  from 1995 to 1996. Prior to
                                                  1994, Mr. Scheid was Chief
                                                  Financial Officer, First
                                                  Interstate Bank of Texas.

DONALD F. DORWARD       Trustee                   Executive Vice President and
September 23, 1931                                Managing Director, Grey
                                                  Advertising. From 1990 to
                                                  1996, Mr. Dorward was
                                                  President and Chief Executive
                                                  Officer, Dorward & Associates
                                                  (advertising and
                                                  marketing/consulting firm).
</TABLE>
    

- ----------

* This trustee is an "interested person" of the trusts.

+ Effective August 18, 1998, Mr. Scheid replaced Tom D. Seip as President and
  Trustee.


12
<PAGE>   120
   
<TABLE>
<S>                     <C>                       <C>
ROBERT G. HOLMES        Trustee                   Chairman, Chief Executive
May 15, 1931                                      Officer and Director, Semloh
                                                  Financial, Inc. (international
                                                  financial services and
                                                  investment advisory firm).

DONALD R. STEPHENS      Trustee                   Managing Partner, D.R.
June 28, 1938                                     Stephens & Company
                                                  (Investments) and Chairman and
                                                  Chief Executive Officer of
                                                  North American Trust (real
                                                  estate investment trust).

MICHAEL W. WILSEY       Trustee                   Chairman, Chief Executive
August 18, 1943                                   Officer and Director, Wilsey
                                                  Bennett, Inc. (truck and air
                                                  transportation, real estate
                                                  investment, management and
                                                  investments).

TAI-CHIN TUNG           Treasurer and Principal   Vice President, Treasurer and
March 7, 1951                                     Controller, Financial Officer
                                                  Charles Schwab Investment
                                                  Management, Inc. From 1994 to
                                                  1996, Ms. Tung was Controller
                                                  for Robertson Stephens
                                                  Investment Management, Inc.
                                                  From 1993 to 1994, she was
                                                  Vice President of Fund
                                                  Accounting, Capital Research
                                                  and Management Co.

WILLIAM J. KLIPP*       Executive Vice            Executive Vice President,
December 9, 1955        President, Chief          SchwabFunds(R), Charles Schwab
                        Operating Officer         & Co., Inc.; President and
                        and Trustee               Chief Operating Officer,
                                                  Charles Schwab Investment
                                                  Management, Inc.

STEPHEN B. WARD         Senior Vice               Senior Vice President and
April 5, 1955           President and Chief       Chief Investment Officer,
                        Investment Officer        Charles Schwab Investment
                                                  Management, Inc.

FRANCES COLE            Secretary                 Senior Vice President, Chief
September 9, 1955                                 Counsel and Assistant
                                                  Corporate Secretary, Charles
                                                  Schwab Investment Management,
                                                  Inc. 
</TABLE>
    

   
* This Trustee is an "interested person" of the Trust.
    

   
Each of the above-referenced officers and/or trustees also serves in the same
capacity as described for the trust, for The Charles Schwab Family of Funds,
Schwab Capital Trust and Schwab Annuity Portfolios. The address of each
individual listed above is 101 Montgomery Street, San Francisco, California
94104.
    

- ----------


13
<PAGE>   121
                              COMPENSATION TABLE(1)

   
<TABLE>
<CAPTION>
                                          Pension or                                                      
                                          Retirement Benefits   Estimated Annual     
                                          Accrued as Part of    Benefits upon        
                        Aggregate         Fund Expenses         Retirement from   Total              
Name of Person,         Compensation      from the Fund         the Fund          Compensation from  
Position                from the Trust    Complex(2)            Complex(2)        the Fund Complex(2)
- --------                --------------    -------------         ----------        -------------------
<S>                     <C>               <C>                   <C>               <C>   
Charles R. Schwab,              0              N/A                 N/A                         0
Chairman and Trustee                                                                    
                                                                                        
Timothy F. McCarthy(3)          0              N/A                 N/A                         0
President and Trustee                                                                   
                                                                                        
Tom D. Seip(4)                  0              N/A                 N/A                         0
President and Trustee                                                                   
                                                                                        
Steven L. Scheid(5)             0              N/A                 N/A                         0
President and Trustee                                                                   
                                                                                        
William J. Klipp,               0              N/A                 N/A                         0
Executive Vice                                                                          
President, Chief                                                                        
Operating Officer and                                                                   
Trustee                                                                                 
                                                                                        
Donald F. Dorward,        $21,150              N/A                 N/A                   $99,550
Trustee                                                                                 
                                                                                        
Robert G. Holmes,         $21,150              N/A                 N/A                   $99,550
Trustee                                                                                 
                                                                                        
Donald R. Stephens,       $21,150              N/A                 N/A                   $99,550
Trustee                                                                                 
                                                                                        
Michael W. Wilsey,        $21,150              N/A                 N/A                   $99,550
Trustee                                                      
</TABLE>
    

   
1. Figures are as of August 31, 1998.
    

   
2. Fund Complex comprises all 35 funds in the Trust, The Charles Schwab Family
   of Funds, Schwab Capital Trust and Schwab Annuity Portfolios.
    

   
3. Mr. McCarthy served as President and Trustee until November 24, 1997. 
    

   
4. Mr. Seip served as President and Trustee until May 15, 1998.
    

   
5. Mr. Scheid became President and Trustee in August 18, 1998.
    


14
<PAGE>   122
                       TRUSTEE DEFERRED COMPENSATION PLAN

Pursuant to exemptive relief received by the Trust from the Securities and
Exchange Commission (the "SEC"), the Trust may enter into deferred fee
arrangements (the "Fee Deferral Plan" or the "Plan") with the Trust's Trustees
who are not "interested persons" of any of the Funds of the Trust (the
"Independent Trustees" or the "Trustees").

As of the date of this SAI, none of the Independent Trustees has elected to
participate in the Fee Deferral Plan. In the event an Independent Trustee does
elect to participate in the Plan, the Plan would operate as described below.

Under the Plan, deferred Trustee's fees will be credited to a book reserve
account established by the Trust (the "Deferred Fee Account") as of the date
such fees would have been paid to such Trustee. The value of the Deferred Fee
Account as of any date will be equal to the value the Account would have had as
of that date if the amounts credited to the Account had been invested and
reinvested in the securities of the SchwabFund or SchwabFunds(R) selected by the
participating Trustee (the "Selected SchwabFund Securities"). SchwabFunds
include the series or classes of beneficial interest of the Trust, The Charles
Schwab Family of Funds and Schwab Capital Trust.

Pursuant to the exemptive relief granted to the Trust, each Fund will purchase
and maintain the Selected SchwabFund Securities in an amount equal to the deemed
investments in that Fund of the Deferred Fee Accounts of the Independent
Trustees. The exemptive relief granted to the Trust permits the Funds and the
Trustees to purchase the Selected SchwabFund Securities, which transactions
would otherwise be limited or prohibited by the investment policies and/or
restrictions of the Funds. See "Investment Restrictions."

                               INVESTMENT MANAGER

   
The Investment Manager, a wholly owned subsidiary of The Charles Schwab
Corporation, serves as the Funds' investment adviser and administrator pursuant
to an Investment Advisory and Administration Agreement (the "Advisory
Agreement") between it and the Trust. The Investment Manager is registered as an
investment adviser under the Investment Advisers Act of 1940, as amended, and
currently provides investment management services to the SchwabFunds Family(R),
a family of 35 mutual funds with over $70 billion in net assets as of August 31,
1998. The Investment Manager is an affiliate of Schwab, the Trust's distributor;
the shareholder services agent; and the transfer agent.
    

   
The Advisory Agreement will continue in effect until May 20, 1999, with respect
to each Fund, and thereafter will continue for one year terms subject to annual
approval by: (1) the Trust's Board of Trustees or (2) a vote of a majority (as
defined in the 1940 Act) of the outstanding voting securities of a Fund. In
either event, the continuance must also be approved by a majority of the Trust's
Board of Trustees who are not parties to the Agreement or interested persons (as
defined in the 1940 Act) of any such party by vote cast in person at a meeting
called for the purpose of voting on such approval. The Advisory Agreement may be
terminated at any time upon 60 days' notice by either party, or by a majority
vote of the outstanding shares of a Fund, and will terminate automatically upon
assignment.
    

   
The Advisory Agreement entitles the Investment Manager to receive an annual fee,
payable monthly from each Fund of 0.41% of each Fund's average daily net assets.
The Investment Manager and Schwab have voluntarily agreed to guarantee at least
through October 31, 1999 that total operating expenses (excluding interest,
taxes, brokerage commissions and extraordinary expenses) will not exceed 0.49%
of each Fund's average net assets.
    

   
For the fiscal years ended August 31, 1996, 1997 and 1998, the investment
advisory fees incurred by the Long-Term Tax-Free Fund were $102,000 (fees were
reduced by $75,000), $38,000 (fees were reduced by $141,000), and $19,000 (fees
were reduced by $209,000), respectively.
    


15
<PAGE>   123
   
For the fiscal years ended August 31, 1996, 1997 and 1998, the investment
advisory fees incurred by the Short/Intermediate Tax-Free Fund were $131,000
(fees were reduced by $85,000), $81,000 (fees were reduced by $137,000), and
$28,000 (fees were reduced by $212,000), respectively.
    

   
For the fiscal years ended August 31, 1996, 1997 and 1998, the investment
advisory fees incurred by the California Long-Term Tax-Free Fund were $297,000
(fees were reduced by $104,000), $238,000 (fees were reduced by $222,000) and
$209,000 (fees were reduced by $409,000), respectively.
    

   
For the fiscal years ended August 31, 1996, 1997 and 1998, the investment
advisory fees incurred by the California Short/Intermediate Tax-Free Fund were
$118,000 (fees were reduced by $57,000), $99,000 (fees were reduced by
$110,000), and $77,000 (fees were reduced by $215,000), respectively.
    

From time to time, each Fund may compare its total operating expense ratio to
the total operating expense ratio of other mutual funds or mutual fund averages
with similar investment objectives as reported by Lipper Analytical Service,
Inc., Morningstar, Inc. or other independent sources of such information
("independent sources").

                                   DISTRIBUTOR

Pursuant to a Distribution Agreement, Schwab is the principal underwriter for
shares of the Trust and is the Trust's agent for the purpose of the continuous
offering of the Funds' shares. Each Fund pays the cost of the prospectuses and
shareholder reports to be prepared and delivered to existing shareholders.
Schwab pays such costs when the described materials are used in connection with
the offering of shares to prospective investors and for supplementary sales
literature and advertising. Schwab receives no fee under the Distribution
Agreement. Terms of continuation, termination and assignment under the
Distribution Agreement are identical to those described above with respect to
the Advisory Agreement.

                          CUSTODIAN AND FUND ACCOUNTANT

PNC Bank, National Association, at the Airport Business Center, 200 Stevens
Drive, Suite 440, Lester, Pennsylvania 19113, serves as Custodian for the Trust.

PFPC, Inc., at 103 Bellevue Parkway Wilmington, Delaware 19809, serves as Fund
Accountant for the Trust.

   
                     ACCOUNTANTS AND REPORTS TO SHAREHOLDERS
    

   
The Trust's independent accountants, PricewaterhouseCoopers LLP, 333 Market
Street, San Francisco, California, 94105, audit and report on the annual
financial statements of each series of the Trust and review certain regulatory
reports and each Fund's federal income tax return. It also performs other
professional accounting, auditing, tax and advisory services when the Trust
engages it to do so. Shareholders will be sent audited annual and unaudited
semi-annual financial statements.
    

                       PORTFOLIO TRANSACTIONS AND TURNOVER

                             PORTFOLIO TRANSACTIONS

Brokerage Commissions. The Funds paid no brokerage commissions during the Fund's
last three fiscal years.

   
         The Funds typically purchase and sell securities on the
over-the-counter market through dealers acting as principals for their own
accounts. Accordingly, commissions are not charged on these transactions.
Instead, the subject securities are sold on a "net" basis with the participating
dealer(s) earning a spread (the difference between ask and bid 
    


16
<PAGE>   124
   
price) on each purchase or sale. The Funds may, however, pay commissions in
connection with their options transactions. When placing orders for each Fund's
securities transactions, the Investment Manager uses its best judgement to
obtain best price and execution. The full range and quality of brokerage
services available are considered in making these determinations. For non-debt
security trades in which Schwab is not a principal, the Investment Manager may
use Schwab to execute a Fund's transactions when it reasonably believes that
commissions (or prices) charged and transaction quality will be at least
comparable to those available from other qualified brokers or dealers.
    

                               PORTFOLIO TURNOVER

A Fund's portfolio turnover rate will vary from year to year depending on market
conditions and purchase and redemption patterns of a Fund's shareholders. A
turnover rate of 100% means that all portfolio securities (aside from short-term
securities) were sold and replaced once during a period of one year. Typically,
funds with high turnover (like 100% or more) tend to generate higher capital
gains and transaction costs, such as brokerage commissions.

From time to time, each Fund may compare its portfolio turnover rate with that
of other mutual funds as reported by independent sources.

   
The portfolio turnover rates for the Long-Term Tax-Free Fund for the fiscal
years ended August 31, 1997 and 1998 were 61% and 39%, respectively. The
portfolio turnover rates for the Short/Intermediate Tax-Free Fund for the fiscal
years ended August 31, 1997 and 1998 were 20% and 22%, respectively.
    

   
The portfolio turnover rates for the California Long-Term Tax-Free Fund for the
fiscal years ended August 31, 1997 and 1998 were 35% and 28%, respectively. The
portfolio turnover rates for the California Short/Intermediate Tax-Free Fund for
the fiscal years ended August 31, 1997 and 1998 were 23% and 8%, respectively.
    

                                      TAXES

                               FEDERAL INCOME TAX

Each Fund intends to qualify for taxation as a "regulated investment company" by
meeting the requirements of Subchapter M of the Code. By following this policy,
each Fund expects to eliminate or reduce to a nominal amount the federal income
tax to which it is subject.

In order to qualify as a regulated investment company, each Fund must, among
other things, (1) derive at least 90% of its gross income from dividends,
interest, payments with respect to securities loans and gains from the sale or
other disposition of stocks, securities, foreign currencies or other income
(including gains from options, futures or forward contracts) derived with
respect to its business of investing in stocks, securities or currencies; (2)
for taxable years beginning on or before August 5, 1997, derive less than 30% of
its gross income from gains from the sale or other disposition of certain assets
(including stocks and securities) held for less than three months; and (3)
diversify its holdings so that at the end of each quarter of its taxable year
(i) at least 50% of the market value of the Fund's total assets is represented
by cash or cash items, U.S. Government securities, securities of other regulated
investment companies and other securities limited, in respect of any one issuer,
to a value not greater than 5% of the value of the Fund's total assets and 10%
of the outstanding voting securities of such issuer, and (ii) not more than 25%
of the value of its assets is invested in the securities of any one issuer
(other than U.S. Government securities or securities of any other regulated
investment company) or of two or more issuers that the Fund controls, within the
meaning of the Code, and that are engaged in the same, similar or related trades
or businesses.

These requirements may restrict the degree to which a Fund may engage in certain
hedging transactions and may limit the range of a Fund's investments. If a Fund
qualifies as a regulated investment company, it will not be subject to federal
income tax on the part of its net investment income and net realized capital
gains, if any, which it distributes to shareholders, provided that the Fund
meets certain minimum distribution requirements. To comply with these
requirements, a Fund must distribute at least (a) 90% of its "investment company
taxable income" (as that term is 


17
<PAGE>   125
defined in the Code) and (b) 90% of the excess of its (i) tax-exempt interest
income over (ii) certain deductions attributable to that income (with certain
exceptions), for its taxable year. Each Fund intends to make sufficient
distributions to shareholders to meet these requirements.

The Code imposes a non-deductible excise tax on regulated investment companies
that do not distribute in a calendar year (regardless of whether they otherwise
have a non-calendar taxable year) an amount equal to 98% of their "ordinary
income" (as defined in the Code) for the calendar year plus 98% of their capital
gain net income for the one-year period ending on October 31 of such calendar
year, plus any undistributed amounts from prior years. For the foregoing
purposes, a Fund is treated as having distributed any amount on which it is
subject to income tax for any taxable year ending in such calendar year. If the
distributions during a calendar year are less than the required amount, the Fund
is subject to a non-deductible excise tax equal to 4% of the deficiency.

Any dividends declared by the Funds in October, November or December to
shareholders of record during those months and paid during the following January
are treated, for tax purposes, as if they were received by each shareholder on
December 31 of the year declared. A Fund may adjust its schedule for the
reinvestment of distributions for the month of December to assist in complying
with the reporting and minimum distribution requirements of the Code.

A Fund will be required in certain cases to withhold and remit to the U.S.
Treasury 31% of taxable dividends paid to any shareholder who (1) fails to
provide a correct taxpayer identification number certified under penalty of
perjury; (2) is subject to withholding by the Internal Revenue Service for
failure to properly report all payments of interest or dividends; or (3) fails
to provide a certified statement that he or she is not subject to "backup
withholding." This "backup withholding" is not an additional tax and any amounts
withheld may be credited against the shareholder's ultimate U.S. tax liability.

A Fund's transactions in futures contracts and options and certain other
investment and hedging activities are subject to special tax rules. In a given
case, these rules may accelerate income to a Fund, defer its losses, cause
adjustments in the holding periods of the Fund's assets, convert short-term
capital losses into long-term capital losses or otherwise affect the character
of the Fund's income. These rules could therefore affect the amount, timing and
character of distributions to shareholders. Income earned as a result of these
transactions would, in general, not be eligible for the corporate dividends
received deduction when distributed to corporate shareholders. The Funds will
endeavor to make any available elections pertaining to these transactions in a
manner believed to be in the best interest of the Funds and their shareholders.

The foregoing discussion relates only to federal income tax law as applicable to
U.S. citizens or residents. Foreign shareholders (i.e., nonresident alien
individuals and foreign corporations, partnerships, trusts and estates) are
generally subject to U.S. withholding tax at the rate of 30% (or a lower tax
treaty rate) on distributions derived from net investment income and short-term
capital gains. Distributions to foreign shareholders of long-term capital gains
and any gains from the sale or other disposition of shares of the Funds are
generally not subject to U.S. taxation, unless the recipient is an individual
who meets the Code's definition of "resident alien." Different tax consequences
may result if the foreign shareholder is engaged in a trade or business within
the United States. In addition, the tax consequences to a foreign shareholder
entitled to claim the benefits of a tax treaty may be different than those
described above. Distributions by a Fund may also be subject to state, local and
foreign taxes, and their treatment under applicable tax laws may differ from the
federal income tax treatment.

The Code permits a regulated investment company that invests at least 50% of its
assets at the close of each quarter in Municipal Securities to pass through to
its investors, on a tax-exempt basis, net Municipal Securities interest income.
An exempt-interest dividend is any dividend or part thereof (other than a
capital gain dividend) paid by a Fund and designated as an exempt-interest
dividend in a written notice mailed to shareholders after the close of such
Fund's taxable year, but not to exceed in the aggregate the net Municipal
Securities interest income received by each such Fund during the taxable year.
The percentage of the total dividends paid during any taxable year that is
designated as exempt-interest dividends will be uniform throughout such year for
all shareholders receiving dividends from each Fund during such year, and may
differ from the percentage of exempt income actually received by a Fund during
the period for which the shares were held. If for any taxable year a Fund does
not qualify for the special federal tax 


18
<PAGE>   126
treatment afforded regulated investment companies, all of its taxable income
will be subject to federal tax at regular corporate rates (without any deduction
for distributions to its shareholders) when distributed, and Municipal
Securities interest income, although not taxed to the Funds, would be taxable to
shareholders. To the extent dividends paid to shareholders are derived from
taxable interest or short-term or long-term capital gains, such dividends will
be subject to federal income tax whether such dividends are paid in the form of
cash or additional shares.

A shareholder should consult his or her own tax adviser with respect to whether
exempt-interest dividends would be excludable from gross income if the
shareholder were treated as a "substantial user" of facilities financed by an
obligation held by either Fund or a "related person" to such user under the
Code. Any loss on the sale or exchange of any share held for six months or less
will be disallowed to the extent of the amount of the exempt-interest dividend
received with respect to such share. The U.S. Treasury Department is authorized
to issue regulations reducing the period to not less than 31 days for certain
regulated investment companies. No such regulations have been issued as of the
date of this SAI.

All or part of interest on indebtedness incurred or continued by a shareholder
to purchase or carry shares of a Fund will not be deductible by the shareholder.
The portion of interest that is not deductible is equal to the total interest
paid or accrued on the indebtedness multiplied by the percentage of that Fund's
total distributions (excluding distributions of the excess of net long-term
capital gains over net short-term capital losses) paid to the shareholder that
are exempt-interest dividends. Under rules used by the Internal Revenue Service,
the purchase of shares of a Fund may be considered to have been made with
borrowed funds even though such funds are not directly traceable to the purchase
of the shares.

The discussion of federal income taxation presented above summarizes only some
of the important federal tax considerations generally affecting purchasers of
Fund shares. No attempt has been made to present a detailed explanation of the
federal income tax treatment of a Fund and its shareholders, and the discussion
is not intended as a substitute for careful tax planning. Accordingly,
prospective investors (particularly those not residing or domiciled in the
United States) should consult their own tax advisers regarding the consequences
of investing in a Fund.

                            STATE OF CALIFORNIA TAXES

With respect to the California Long-Term Tax-Free Fund and the California
Short/Intermediate Tax-Free Fund (the California Tax-Free Funds), if, at the
close of each quarter of its taxable year, at least 50% of the value of the
total assets of a Fund consists of obligations the interest on which, if held by
an individual, would be exempt from California personal income taxation under
the laws of California ("California Exempt Obligations"), then the Fund will be
qualified to pay dividends exempt from State of California personal income tax
to its non-corporate shareholders (hereinafter referred to as "California
exempt-interest dividends"). The California Tax-Free Funds intend to qualify
under the above requirement so that they can pay California exempt-interest
dividends. If a California Tax-Free Fund fails to so qualify, none of its
dividends will be exempt from State of California personal income tax.

Not later than 60 days after the close of its taxable year, each California
Tax-Free Fund will notify each shareholder of the portion of the dividends paid
by it to the shareholder with respect to such taxable year which is a California
exempt-interest dividend. The total amount of California exempt-interest
dividends paid by a California Tax-Free Fund to all of its shareholders with
respect to any taxable year cannot exceed the amount of interest received by the
Fund during such year on California Exempt Obligations, less any expenses or
expenditures (including any expenditures attributable to the acquisition of
additional securities for the California Tax-Free Funds) that are deemed to have
been paid from such interest. Dividends paid by the California Tax-Free Funds in
excess of this limitation will be subject to State of California personal income
tax. For purposes of this limitation, expenses or other expenditures paid during
any year generally will be deemed to have been paid with funds attributable to
interest received by the Fund from California Exempt Obligations for such year
in the same ratio as such interest from California Exempt Obligations for such
year bears to the total gross income earned by the Fund for the year. The effect
of this accounting convention is that amounts of interest from California Exempt
Obligations received by the California Tax-Free Funds that would otherwise be
available for distribution as California exempt-interest dividends will be
proportionately reduced by the expenses and expenditures deemed to have been
paid from such amounts.


19
<PAGE>   127
To the extent, if any, dividends paid to shareholders are derived from long-term
and short-term capital gains, such dividends will not constitute California
exempt-interest dividends. Rules similar to those regarding the treatment of
such dividends for federal income tax purposes are also applicable for State of
California personal income tax purposes. Moreover, interest on indebtedness
incurred by a shareholder to purchase or carry shares of a California Tax-Free
Fund is not deductible for State of California personal income tax purposes if
the Fund distributes California exempt-interest dividends to the shareholder
during his or her taxable year.

The foregoing is a summary of only some of the important State of California
personal income tax considerations generally affecting the California Tax-Free
Funds and their shareholders. No attempt is made to present a detailed
explanation of the State of California personal income tax treatment of the
California Tax-Free Funds or their shareholders, and this discussion is not
intended as a substitute for careful planning. Further, it should be noted that
the portions of the California Tax-Free Funds' dividends constituting California
exempt-interest dividends are excludable from income for State of California
personal income tax purposes only. Any dividends paid to shareholders of the
California Tax-Free Funds subject to State of California franchise or corporate
income tax will be taxed as ordinary dividends to such shareholders,
notwithstanding that all or a portion of such dividends are exempt from State of
California personal income tax. Accordingly, potential investors in the
California Tax-Free Funds, including, in particular, corporate investors that
may be subject to California franchise or corporate income tax, should consult
their tax advisers with respect to the application of such tax to the receipt of
the California Tax-Free Funds' dividends and as to their own State of California
tax situation, in general.

                             SHARE PRICE CALCULATION

   
Each Fund's net asset value per share (NAV) is determined, after 4:00 p.m.
Eastern Time, each day the New York Stock Exchange (NYSE) is open for trading.
The NYSE may change its holiday closing schedule at anytime, but the following
holiday closings are currently scheduled for 1999: New Year's Day, Dr. Martin
Luther King Jr.'s Birthday, President's Day, Good Friday, Memorial Day,
Independence Day (observed), Labor Day, Thanksgiving Day and Christmas Day.
    

   
On any day that the NYSE or principal government securities markets closes
early, such as days in advance of holidays, the Funds reserve the right to
advance the time by which purchase, redemption and exchange orders must be
received on that day. Shares purchased begin to earn dividends on the next
business day with the following exceptions: Columbus Day and Veterans Day.
    

The Funds value their portfolio securities daily based on their fair value.
Investments in mutual funds are valued at their respective net asset values, as
determined by those Funds. Securities traded on stock exchanges are valued at
the last quoted sales price on the exchange on which such securities are
primarily traded, or, lacking any sales, at the mean between the bid and ask
prices. Securities traded in the over-the-counter market are valued at the last
sales price that day, or if no sales that day, at the mean between the bid and
ask prices. In addition, securities that are primarily traded on foreign
exchanges are generally valued at the preceding closing values of such
securities on their respective exchanges with these values then translated into
U.S. dollars at the current exchange rate. Foreign securities for which the
closing values are not readily available are valued at fair value as determined
in good faith pursuant to the Board of Trustees guidelines. Securities for which
market quotations are not readily available (including restricted securities
that are subject to limitations on their sale) are valued at fair value as
determined in good faith pursuant to the Trust's Board of Trustees guidelines.
Securities may be valued on the basis of prices provided by pricing services
when such prices are believed to reflect fair market value.

From time to time, each Fund may report its NAV over a specified period. Each
Fund's NAV, for the periods set forth, may be compared to NAVs of other mutual
funds with similar investment objectives as reported by independent sources.


20
<PAGE>   128
                             TOTAL RETURN AND YIELD

                            STANDARDIZED TOTAL RETURN

Average annual total return for a period is determined by calculating the actual
dollar amount of investment return on a $1,000 investment in a Fund made at the
beginning of the period, then calculating the average annual compounded rate of
return that would produce the same investment return on the $1,000 over the same
period. In computing average annual total return, a Fund assumes the
reinvestment of all distributions at net asset value on applicable reinvestment
dates.

   
<TABLE>
<CAPTION>
                                     Average annual                                  Average annual total return
                                     total return for 1    Average annual total      from commencement of
                                     year ended            return for 5 years ended  operations to August 31,
                                     August 31, 1998       August 31, 1998           1998*
                                     ------------------    ------------------------  ---------------------------
<S>                                  <C>                   <C>                       <C>  
Long-Term Tax-Free Fund                    9.81%                    6.21%                       7.11%
Short/Intermediate Tax-Free Fund           5.17%                    4.29%                       4.54%
California Short/Intermediate              5.19%                    4.45%                       4.63%
Tax-Free Fund                             
California Long-Term Tax-Free Fund         8.96%                    6.04%                       7.88%
</TABLE>
    
                                        
* April 21, 1993 for Short/Intermediate Tax-Free Fund and California
Short/Intermediate Tax-Free Fund, February 24, 1992 for California Long Term
Tax-Free Fund and September 11, 1992 for Long Term Tax-Free Fund.

                          NONSTANDARDIZED TOTAL RETURN

Nonstandardized total return for a Fund differs from standardized total return
in that it relates to periods other than the period for standardized total
return and/or that it represents aggregate (rather than average) total return.

A Fund may also advertise its cumulative total return since inception. This
number is calculated using the same formula that is used for average annual
total return except that, rather than calculating the total return based on a
one-year period, cumulative total return is calculated from inception to the
date specified.

                                      YIELD

A Fund's yield refers to the net investment income generated by a hypothetical
investment in the Fund over a specific 30-day period. This net investment income
is then annualized, which means that the net investment income generated during
the 30-day period is assumed to be generated in each 30-day period over an
annual period, and is shown as a percentage of the investment.

   
<TABLE>
<CAPTION>
Fund                                          30-day period ended August 31, 1998
- ----                                          -----------------------------------
<S>                                           <C>  
Long-Term Tax-Free Fund                                      4.68%
Short/Intermediate Tax-Free Fund                             3.71%
California Long-Term Tax-Free Fund                           4.48%
California Short/Intermediate Tax-Free Fund                  3.57%
</TABLE>
    


                                 EFFECTIVE YIELD


21
<PAGE>   129
A Fund's effective yield is calculated similarly, but the net investment income
earned by the investment is assumed to be compounded monthly when annualized.
The effective yield will be slightly higher than the yield due to this
compounding effect.

             TAX EQUIVALENT YIELD AND TAX EQUIVALENT EFFECTIVE YIELD

The tax equivalent yield of the Funds is calculated by dividing that portion of
the applicable Fund's yield (computed as described above) that is tax-exempt by
an amount equal to one minus the applicable effective tax rate, and adding the
result to that portion, if any, of the yield of the Fund that is not tax-exempt.
For the Tax-Free Funds, the maximum federal marginal rate of 39.6% is normally
used; for the California Tax-Free Funds, a combined rate of the maximum federal
marginal rate of 39.6% and the California marginal rate of 9.3% is normally
used.

   
Tax equivalent effective yields are computed in the same manner as tax
equivalent yields, except that effective yield is substituted for yield in the
calculation. In calculating tax equivalent yields and effective yields the
California Tax-Free Funds generally assume an effective tax rate (combining the
federal 39.6% rate and the California 9.3% rate, and assuming the taxpayer
deducts California state taxes paid) of 45.22%. The effective tax rates used in
determining such yields do not reflect the tax costs resulting from the full or
partial loss of the benefits of personal exemptions, itemized deductions and
California exemption credits that may result from the receipt of additional
taxable income by single taxpayers or married taxpayers filing jointly with
adjusted gross incomes exceeding certain levels, $124,500 ($62,250 for married
filing separate returns) in 1998. Actual tax equivalent yields and tax
equivalent effective yields may be higher for taxpayers subject to the loss of
these benefits than the rates reported by the Funds.
    

   
<TABLE>
<CAPTION>
                                                  Taxable equivalent yield for
                                                  30-day period
Fund                                              ended August 31, 1998
- ----                                              ----------------------------
<S>                                               <C>  
Long-Term Tax-Free Fund                                      7.75%
Short/Intermediate Tax-Free Fund                             6.14%
California Long-Term Tax-Free Fund                           8.18%
California Short/Intermediate Tax-Free Fund                  6.52%
</TABLE>
    

                         TAX-EXEMPT VERSUS TAXABLE YIELD

Investors may want to determine which investment, tax-exempt or taxable, will
provide a higher after-tax return. To determine the tax equivalent yield, or tax
equivalent effective yield, simply divide the yield or effective yield of the
Funds by 1 minus your marginal federal tax rate (or combined state and federal
tax rate in the case of the California Tax-Free Funds). Note, however, that as
discussed above, full or partial loss by certain investors of the described
federal tax benefits could cause the resulting figure to understate the
after-tax return produced by the Fund in question.

From time to time, each Fund may report on the dividends paid to shareholders
over a specified period of time.

                               GENERAL INFORMATION

Schwab Investments (the Trust) was organized as a Massachusetts business trust
on October 26, 1990, and may issue an unlimited number of shares of beneficial
interest in one or more investment portfolios (Series or Funds). Currently,
shares of seven Funds are offered: Long-Term Tax-Free Fund, California Long-Term
Tax-Free Fund, Short/Intermediate Tax-Free Fund, California Short/Intermediate
Tax-Free Fund, Schwab Total Bond Market Index Fund (formerly Schwab Long-Term
Government Bond Fund), Schwab Short-Term Bond Market Index Fund (formerly Schwab
Short/Intermediate Government Bond Fund) and Schwab 1000 Fund(R). The Board of
Trustees may authorize the issuance of shares of additional Funds. There is a
remote possibility that one fund might become liable for a 


22
<PAGE>   130
misstatement in the prospectus or SAI about another fund. Shares within each
Fund have equal, noncumulative voting rights and equal rights as to dividends,
assets and liquidation of such Fund. Shareholders vote by Series and not in the
aggregate, except when aggregate voting is permitted under the 1940 Act.

The Trust generally is not required to hold shareholder meetings. However, as
provided in its Agreement and Declaration of Trust and Bylaws, shareholder
meetings will be held in connection with the following matters: (1) removal of
Trustees if a meeting is requested in writing by a shareholder or shareholders
who beneficially own(s) 10% or more of the Trust's shares; (2) adoption of any
contract for which shareholder approval is required by the 1940 Act; (3) any
termination of the Trust to the extent and as provided in the Declaration of
Trust; (4) any amendment of the Declaration of Trust (other than amendments
changing the name of the Trust or any of its investment portfolios, supplying
any omission, curing any ambiguity or curing, correcting or supplementing any
defective or inconsistent provision thereof); (5) determining whether a court
action, proceeding or claim should or should not be brought or maintained
derivatively or as a class action on behalf of the Trust or the shareholders, to
the same extent as the stockholders of a Massachusetts business corporation; and
(6) such additional matters as may be required by law, the Declaration of Trust,
the Bylaws or any registration of the Trust with the SEC or any state or as the
Board of Trustees may consider desirable. The shareholders also would vote upon
changes to a Fund's fundamental investment objective, policies or restrictions.

Each Trustee serves until the next meeting of shareholders, if any, called for
the purpose of electing Trustees and until the election and qualification of his
or her successor or until death, resignation, retirement or removal by a
majority vote of the shares entitled to vote (as described below) or of a
majority of the Trustees. A Trustee may be removed by shareholders owning at
least 10% of the outstanding shares of the Trust. In accordance with the 1940
Act, (i) the Trust will hold a shareholder meeting for the election of Trustees
when less than a majority of the Trustees have been elected by shareholders and
(ii) if, as a result of a vacancy in the Board of Trustees, less than two-thirds
of the Trustee have been elected by the shareholders, that vacancy will be
filled by a vote of the shareholders.

Upon the written request of 10 or more shareholders who have been such for at
least six months and who hold shares constituting at least 1% of the Trust's
outstanding shares stating that they wish to communicate with the other
shareholders for the purpose of obtaining signatures necessary to demand a
meeting to consider removal of one or more Trustees, the Trust has undertaken to
disseminate appropriate materials at the expense of the requesting shareholders.

The Bylaws provide that the presence at a shareholder meeting in person or by
proxy of at least 30% of the shares entitled to vote on a matter shall
constitute a quorum, unless otherwise provided by the 1940 Act or other
applicable law. Thus, even if less than a majority of shareholders were
represented, a meeting of the Trust's shareholders could occur. Attending
shareholders would in such case be permitted to take action not requiring the
vote of more than a majority of a quorum. Some matters requiring a larger vote
under the Declaration of Trust, such as termination or reorganization of the
Trust, and certain amendments of the Declaration of Trust, could not be decided
at such a meeting; nor could matters which under the 1940 Act require the vote
of a "majority of the outstanding voting securities" as defined in the 1940 Act.
The Declaration of Trust specifically authorizes the Board of Trustees to
terminate the Trust (or any of its investment portfolios) by notice to the
shareholders without shareholder approval.

Under Massachusetts law, shareholders of a Massachusetts business trust could,
under certain circumstances, be held personally liable for the Trust's
obligations. The Declaration of Trust, however, disclaims shareholder liability
for the Trust's acts or obligations and requires that notice of such disclaimer
be given in each agreement, obligation or instrument entered into or executed by
the Trust or the Trustees. In addition, the Declaration of Trust provides for
indemnification out of the property of an investment portfolio in which a
shareholder owns or owned shares for all losses and expenses of such shareholder
or former shareholder if he or she is held personally liable for the obligations
of the Trust solely by reason of being or having been a shareholder. Moreover,
the Trust will be covered by insurance, which the Trustees consider adequate to
cover foreseeable tort claims.

Thus, the risk of a shareholder incurring financial loss on account of
shareholder liability is considered remote, because it is limited to
circumstances in which a disclaimer is inoperative and the Trust itself is
unable to meet its obligations.


23
<PAGE>   131
   
Year 2000 presents uncertainties and possible risks to the smooth operations of
the funds and the provision of services to shareholders. Many computer programs
use only two digits to identify a specific year and therefore may not accurately
recognize the upcoming change in the next century. If not corrected, many
computer applications could fail or create erroneous results by or at year 2000.
Due to the funds' and their service providers' dependence on computer technology
to operate, the nature and impact of year 2000 processing failures on the funds
could be material. The funds' investment adviser is taking steps to minimize the
risks of year 2000 for the funds, including obtaining assurances from the funds'
service providers that they are analyzing their systems, testing them for
potential problems and remediating them to the extent possible. There can be no
assurance that these steps will be sufficient to avoid any adverse impact on the
funds, however, minimizing year 2000 risk for the funds is a priority of the
Investment Manager.
    

                         PRINCIPAL HOLDERS OF SECURITIES

   
         As of October 14, 1998, The Thompson Revocable Trust, 2431 Riviera
Drive, Laguna Beach, CA 92651 directly or beneficially owned 6.11% of the Schwab
California Short/Intermediate Tax-Free Bond Fund. As of October 14, 1998, no
person owns of record, directly or beneficially, 5% or more of Schwab
Short/Intermediate Tax-Free Bond Fund's, Schwab Long-Term Tax-Free Bond Fund's,
and Schwab California Long-Term Tax-Free Bond Fund's shares respectively.
    

   
         In addition, as of October 8, 1998, the officers and trustees of the
Trust, as a group, owned less than 1% of each Fund's outstanding voting
securities.
    

                        PURCHASE AND REDEMPTION OF SHARES

Each Fund and class has set minimum initial and subsequent investment
requirements, as disclosed in their Prospectuses. These minimum investment
requirements may be changed at any time and are not applicable to certain types
of investors. The Trust may waive the minimums for purchases by Trustees,
Directors, officers or employees of the Trust, Schwab or the Investment Manager.

The Trust has made an election with the SEC to pay in cash all redemptions
requested by any shareholder of record limited in amount during any 90-day
period to the lesser of $250,000 or 1% of its net assets at the beginning of
such period. This election is irrevocable without the SEC's prior approval.
Redemption requests in excess of the stated limits may be paid, in whole or in
part, in investment securities or in cash, as the Trust's Board of Trustees may
deem advisable; however, payment will be made wholly in cash unless the Board of
Trustees believes that economic or market conditions exist that would make such
a practice detrimental to the best interests of the Fund. If redemption proceeds
are paid in investment securities, such securities will be valued as set forth
in the Prospectus of the Fund affected under "Share Price Calculation" and a
redeeming shareholder would normally incur brokerage expenses if he or she were
to convert the securities to cash.

                                OTHER INFORMATION

The Funds' Prospectuses and SAI do not contain all the information included in
the Registration Statement filed with the SEC under the Securities Act of 1933,
as amended, with respect to the securities offered by the Prospectuses. Certain
portions of the Registration Statement have been omitted from the Prospectuses
and this SAI pursuant to the rules and regulations of the SEC. For further
information, please refer to the registration statement and exhibits for the
Trust on file with the SEC in Washington, D.C. and available upon payment of a
copying fee. The statements in the Prospectus and this SAI concerning the
contents of contracts or other documents, copies of which are filed as exhibits
to the registration statement, are qualified by reference to such contracts or
documents.


24
<PAGE>   132
   
Each Fund's financial statements and financial highlights for the fiscal year
ended August 31, 1998, are included in each Fund's Annual Report, which are
separate reports supplied with this SAI. Each Fund's financial statements and
financial highlights are incorporated herein by reference.
    

                   APPENDIX - RATINGS OF INVESTMENT SECURITIES

   
From time to time, each Fund may report the percentage of its assets that fall
into the rating categories set forth below.
    

                                      BONDS

                            MOODY'S INVESTORS SERVICE

Moody's rates the bonds it judges to be of the best quality Aaa. These bonds
carry the smallest degree of investment risk and are generally referred to as
"gilt edge." Interest payments are protected by a large or exceptionally stable
margin and principal is secure. While the various protective elements are likely
to change, such changes as can be visualized are most unlikely to impair the
fundamentally strong position of these issues. Bonds carrying an Aa designation
are deemed to be of high quality by all standards. Together with Aaa rated
bonds, they comprise what are generally known as high-grade bonds. Aa bonds are
rated lower than the best bonds because they may enjoy relatively lower margins
of protection, fluctuations of protective elements may be of greater amplitude
or there may be other factors present that make them appear to be subject to
somewhat greater long-term risks. A rated bonds are considered as upper-medium
grade obligations as they possess many favorable investment attributes. Bonds
designated Baa are considered medium grade in that they are not highly protected
or poorly secured. Interest payments and principal security appear to be
adequate at the present, but they may lack certain protective elements or be
characteristically unreliable over any great length of time. Baa bonds do not
have any outstanding investment characteristics and do have speculative
characteristics.

                          STANDARD & POOR'S CORPORATION

AAA is the highest rating assigned by S&P to a bond and indicates the issuer's
extremely strong capacity to pay interest and repay principal. An AA rating
denotes a bond whose issuer has a very strong capacity to pay interest and repay
principal and differs from an AAA rating only in small degree. A ratings are
given to debt which has a strong capacity to pay interest and repay principal
but is somewhat more susceptible to adverse effects of changes in circumstances
and economic conditions than higher rated debt. BBB debt indicates the issuer is
regarded by S&P as having an adequate capacity to pay interest and repay
principal. These securities appear to have adequate protection, however adverse
economic conditions or changing circumstances are more likely to lead to a
weakened capacity to pay interest and repay principal in this category than in
higher categories.

                         DUFF & PHELPS CREDIT RATING CO.

Duff confers an AAA designation to bonds of issuers with the highest credit
quality. The risk factors associated with these bonds are negligible, being only
slightly more than for risk-free U.S. Treasury debt. AA rated bonds are of high
credit quality and have strong protection factors. The risks associated with
them are modest but may vary slightly from time to time because of economic
conditions. An A rating indicates that the protection factors are average but
adequate. The risk factors, however, are more variable and greater in periods of
economic stress. BBB rated debt has protection factors that are below average
but still sufficient for prudent investment. There is considerable variability
in the risk of BBB rated debt during economic cycles.


   
                                FITCH IBCA, INC.
    


                                       25
<PAGE>   133
   
AAA is the highest rating Fitch IBCA, Inc. assigns to bonds, and indicates the
obligor's exceptionally strong capacity for payment of financial commitments,
including interest and principal. Bonds that Fitch IBCA, Inc. considers of very
high credit quality, and the obligor's ability to pay interest and repay
principal is very strong, although not as strong as AAA, are rated AA. An A
rating is given to show high credit quality and the issuer's ability to pay
interest and repay principal is strong, but there is more vulnerability to
economic conditions and circumstances than higher rated debt. BBB bonds are
considered to be in the lowest investment grade category, where the issuer has
adequate ability to pay interest and repay principal. Bonds rated BBB are more
susceptible to adverse changes in economic conditions and circumstances, thus
these bonds are more likely to fall below investment grade or have the
timeliness of their payments impaired.
    

              SHORT-TERM NOTES AND VARIABLE RATE DEMAND OBLIGATIONS

                            MOODY'S INVESTORS SERVICE

Short-term notes/variable rate demand obligations bearing the designations
MIG-1/VMIG-1 are considered to be of the best quality, enjoying strong
protection from established cash flows, superior liquidity support or
demonstrated broad-based access to the market for refinancing. Obligations rated
MIG-2/VMIG-3 are of high quality and enjoy ample margins of protection although
not as large as those of the top rated securities.

                          STANDARD & POOR'S CORPORATION

An S&P SP-1 rating indicates that the subject securities' issuer has a strong
capacity to pay principal and interest. Issues determined to possess very strong
safety characteristics are given a plus (+) designation. S&P's determination
that an issuer has a satisfactory capacity to pay principal and interest is
denoted by an SP-2 rating.

   
                                FITCH IBCA, INC.
    

   
Obligations supported by the highest capacity for timely repayment are rated
F1+. An F1 rating indicates that the obligation is supported by a very strong
capacity for timely repayment. Obligations rated F2 are supported by a good
capacity for timely repayment, although adverse changes in business, economic,
or financial conditions may affect this capacity.
    

THE SAI DOES NOT CONSTITUTE AN OFFERING BY THE TRUST, ANY SERIES THEREOF, OR BY
THE DISTRIBUTOR IN ANY JURISDICTION IN WHICH SUCH OFFERING MAY NOT BE LAWFULLY
MADE.


26
<PAGE>   134
                                     PART C
                                OTHER INFORMATION
                               SCHWAB INVESTMENTS


Item 24.    Financial Statements and Exhibits.
            ----------------------------------

(a)   Financial Statements

      1. Financial Statements and financial highlights included in the Annual
         Reports for the Schwab Short-Term Bond Market Index Fund (formerly
         Schwab Short/Intermediate Government Bond Fund), Schwab Total Bond
         Market Index Fund (formerly Schwab Long-Term Government Bond Fund),
         Schwab Short/Intermediate Tax-Free Bond Fund and Schwab Long-Term
         Tax-Free Bond Fund for the fiscal year ended August 31, 1998, were
         filed on October 28, 1998 pursuant to Rule 30d-1 under the 1940 Act,
         and are incorporated herein by reference.

      2. Financial Statements and financial highlights included in the Annual
         Report for the Schwab California Short/Intermediate Tax-Free Bond Fund
         and Schwab California Long-Term Tax-Free Bond Fund for the fiscal year
         ended August 31, 1998, were filed on October 26, 1998 pursuant to Rule
         30d-1 under the 1940 Act, and are incorporated herein by reference.

      3. Financial Statements and financial highlights included in the Annual
         Report for the Schwab 1000 Fund(R) for the fiscal year ended October
         31, 1997, were filed on December 23, 1997 pursuant to Rule 30d-1 under
         the 1940 Act, and are incorporated herein by reference.

(b)   Exhibits:

     (1)           Agreement and Declaration of Trust dated October 29, 1990,
                   was filed and is incorporated by reference as Exhibit 1 to
                   Post-Effective Amendment No. 22 to Registrant's Registration
                   Statement on Form N-1A, filed
                   on December 30, 1997.

     (2)           Amended and Restated By-Laws were filed and are incorporated
                   by reference as Exhibit 2 to Post-Effective Amendment No. 22
                   to Registrant's Registration Statement on Form N-1A, filed on
                   December 30, 1997.

     (3)           Inapplicable.

     (4)     (a)   Article III, Section 5, Article V, Article VI, Article
                   VIII, Section 4 and Article IX, Sections 1, 5 and 7 of
                   the Agreement and Declaration of Trust were filed and
                   are incorporated by reference to Exhibit 1
                   Post-Effective Amendment No. 22 to Registrant's
                   Registration Statement on Form N-1A, filed on December
                   30, 1997.

             (b)   Article 9, Article 10, Section 6, and Article 11 of the
                   Amended and Restated By-Laws were filed and are incorporated
                   by reference to Exhibit 2 to Post-Effective Amendment No. 22
                   to Registrant's Registration Statement on Form N-1A filed on
                   December 30, 1997.

                                     C- 1 -
<PAGE>   135
     (5)     (a)   Investment Advisory and Administration Agreement between
                   Registrant and Charles Schwab Investment Management,
                   Inc. (the "Investment Manager") was filed and is
                   incorporated by reference as Exhibit 5(a) to
                   Post-Effective Amendment No. 22 to Registrant's
                   Registration Statement on Form N-1A, filed on December
                   30, 1997.

             (b)   Amended Schedules to Investment Advisory and Administration
                   Agreement referred to at Exhibit 5(a) above were filed and
                   are incorporated by reference as Exhibit 5(b) to
                   Post-Effective Amendment No. 22 to Registrant's Registration
                   Statement on Form N-1A, filed on December 30, 1997.

     (6)           Distribution Agreement between Registrant and Charles Schwab
                   & Co., Inc. ("Schwab") was filed and is incorporated by
                   reference as Exhibit 6 to Post-Effective Amendment No. 22 to
                   Registrant's Registration Statement on Form N-1A, filed on
                   December 30, 1997.

     (7)           Inapplicable.

     (8)     (a)   Custodian Services Agreement between Registrant and PNC
                   Bank, National Association (formerly Provident National Bank)
                   was filed and is incorporated by reference as Exhibit 8(a) to
                   Post-Effective Amendment No. 22 to Registrant's Registration
                   Statement on Form N-1A, filed on December 30, 1997.

             (b)   Amendment No. 1 to Custodian Services Agreement referred to
                   at Exhibit 8(a) above was filed and is incorporated by
                   reference to Exhibit 8(b) to Post-Effective Amendment No. 13
                   to Registrant's Registration Statement on Form N-1A, filed on
                   December 29, 1996.

             (c)   Amendment No. 2 to Custodian Services Agreement referred to
                   at Exhibit 8(a) above was filed and is incorporated by
                   reference to Exhibit 8(c) to Post-Effective Amendment No.14
                   to Registrant's Registration Statement on Form N-1A, filed on
                   December 30, 1996.

             (d)   Amended Schedule to the Custodian Services Agreement referred
                   to at Exhibit 8(a) above was filed and is incorporated by
                   reference to Exhibit 8(d) to Post-Effective Amendment No. 22
                   to Registrant's Registration Statement on Form N-1A, filed on
                   December 30, 1997.

             (e)   Transfer Agency Agreement between the Registrant and Schwab
                   was filed and is incorporated by reference to Exhibit 8(e) to
                   Post-Effective Amendment No. 22 to Registrant's Registration
                   Statement on Form N-1A, filed on December 30, 1997.


                                     C- 2 -
<PAGE>   136
             (f)   Amended Schedules to the Transfer Agency Agreement referred
                   to at Exhibit 8(e) above were filed and are incorporated by
                   reference to Exhibit 8(f) to Post-Effective Amendment No. 22
                   to Registrant's Registration Statement on Form N-1A, filed on
                   December 30, 1997.

             (g)   Shareholder Service Agreement between the Registrant and
                   Schwab was filed and is incorporated by reference to Exhibit
                   8(g) to Post-Effective Amendment No. 22 to Registrant's
                   Registration Statement on Form N-1A, filed on December 30,
                   1997.

             (h)   Form of Amended Schedules to the Shareholder Services
                   Agreement referred to at Exhibit 8(g) above were filed and
                   are incorporated by reference as Exhibit 8(h) to
                   Post-Effective Amendment No. 21 to Registrant's Registration
                   Statement on Form N-1A, filed December 15, 1997.

             (i)   Accounting Services Agreement between Registrant and
                   Provident Financial Processing Corporation was filed and is
                   incorporated by reference to Exhibit 8(i) to Post-Effective
                   Amendment No. 22 to Registrant's Registration Statement on
                   Form N-1A filed on December 30, 1997.

             (j)   Amendment No. 1 to Accounting Services Agreement referred to
                   at Exhibit 8(i) above was filed and is incorporated by
                   reference to Exhibit 8(j) to Post-Effective Amendment No. 13
                   to Registrant's Registration Statement on Form N-1A, filed on
                   December 29, 1996.

             (k)   Amendment No. 2 to Accounting Services Agreement referred to
                   at Exhibit 8(i) above was filed and is incorporated by
                   reference to Exhibit 8(k) to Post-Effective Amendment No. 14
                   to Registrant's Registration Statement on Form N-1A, filed on
                   December 30, 1996.

             (l)   Amended Schedule to the Accounting Services Agreement
                   referred to at Exhibit 8(i) above was filed and is
                   incorporated by reference to Exhibit 8(l) to Post-Effective
                   Amendment No. 22 to Registrant's Registration Statement on
                   Form N-1A filed on December 30, 1997.

     (9)           Inapplicable.

     (10)          Opinion of Counsel as to the legality of the securities being
                   registered is filed electronically as Exhibit 10.

     (11)          Consent of Auditors is filed electronically as Exhibit 11.

     (12)          Inapplicable.


                                    C - 3 -
<PAGE>   137
     (13)          Purchase Agreement relating to shares of the Schwab
                   Short/Intermediate Tax-Free Bond Fund, Schwab California
                   Short/Intermediate Tax-Free Bond Fund and Schwab
                   Long-Term Government Bond Fund (formerly, Schwab
                   Long-Term U.S. Government Bond Fund) was filed and is
                   incorporated by reference to Exhibit 13 to
                   Post-Effective Amendment No. 22 to Registrant's
                   Registration Statement on Form N-1A filed on December
                   30, 1997.

     (14)          Inapplicable.

     (15)          Inapplicable.

     (16)          Omitted.

     (17)          Omitted.

     (18)          Registrant's Multiple Class Plan for Schwab 1000
                   Fund(R)-Investor Shares and Schwab 1000 Fund-Select Shares is
                   incorporated by reference to Post-Effective Amendment No. 17
                   to the Registrant's Registration Statement on Form N-1A filed
                   on August 15, 1997.


Item 25.    Persons Controlled by or under Common Control with the Registrant.
            ------------------------------------------------------------------

            The Charles Schwab Family of Funds (the "Schwab Fund Family"),
Schwab Capital Trust and Schwab Annuity Portfolios are each Massachusetts
business trusts registered under the Investment Company Act of 1940, as amended
(the "1940 Act"). Each is advised by the Investment Manager and employs Schwab
as principal underwriter, transfer agent and shareholder services agent. As a
result, the Schwab Fund Family, Schwab Capital Trust and Schwab Annuity
Portfolios may each be deemed to be under common control with Registrant.

Item 26.    Number of Holders Securities.
            -----------------------------

                 Omitted.

Item 27.    Indemnification.
            ----------------

            Article VIII of Registrant's Agreement and Declaration of Trust
(Exhibit (1) hereto, which is incorporated herein by reference) provides in
effect that Registrant will indemnify its officers and trustees against all
liabilities and expenses, including but not limited to amounts paid in
satisfaction of judgments, in compromise, or as fines and penalties, and counsel
fees reasonably incurred by any such officer or trustee in connection with the
defense or disposition of any action, suit, or other proceeding. However, in
accordance with Section 17(h) and 17(i) of the 1940 Act and its own terms, said
Agreement and Declaration of Trust does not protect any person against any
liability to Registrant or its shareholders to which he or she would otherwise
be subject by reason of willful misfeasance, bad faith, gross negligence, or
reckless disregard of the duties involved in the conduct of his or her office.
In any event, Registrant will comply with 1940 Act Releases No. 7221 and 11330
respecting the permissible boundaries of indemnification by an investment
company of its officers and trustees.


                                     C- 4 -
<PAGE>   138
            Insofar as indemnification for liability arising under the
Securities Act of 1933, as amended (the "1933 Act"), may be permitted to
trustees, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, Registrant has been advised that, in the
opinion of the Securities and Exchange Commission, such indemnification is
against public policy as expressed in the 1933 Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by Registrant of expenses incurred or paid
by a trustee, officer or controlling person of Registrant in the successful
defense of any action, suit or proceeding) is asserted by such trustee, officer
or controlling person in connection with the securities being registered,
Registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as
expressed in the 1933 Act and will be governed by the final adjudication of such
issue.


Item 28.    Business and Other Connections of Investment Manager.
            -----------------------------------------------------

            (a) Information pertaining to business and other connections of
Registrant's Investment Manager is hereby incorporated by reference to the
section of the Prospectuses captioned "Management of the Fund(s)" and to the
section of the Statement of Additional Information captioned "Management of the
Trust."
            Registrant's Investment Manager, Charles Schwab Investment
Management, Inc., a Delaware corporation, organized in October 1989 to serve as
Investment Manager to the Schwab Fund Family, also serves as the Investment
Manager to Schwab Capital Trust and Schwab Annuity Portfolios, each an open-end
management investment company. The principal place of business of the Investment
Manager is 101 Montgomery Street, San Francisco, California 94104. The only
business in which the Investment Manager engages is that of investment manager
and administrator to Registrant, Schwab Fund Family, Schwab Capital Trust,
Schwab Annuity Portfolios and any other investment companies that Schwab may
sponsor in the future.

            (b) The business, profession, vocation or employment of a
substantial nature in which each director and/or executive officer of Schwab
and/or the Investment Manager is or has been engaged during the past two fiscal
years for his or her own account in the capacity of director, officer, employee,
partner or trustee is as follows:

<TABLE>
<CAPTION>
Name and Position
with Registrant                  Name of Company                                  Capacity
- ---------------------------------------------------------------------------------------------------------------------
<S>                              <C>                                              <C>
Charles R. Schwab,               Charles Schwab & Co., Inc.                       Chairman and Director
Chairman and Trustee
                                 The Charles Schwab Corporation                   Chairman, Co-Chief Executive
                                                                                  Officer and Director

                                 Schwab Holdings, Inc.                            Chairman, Chief Executive Officer
                                                                                  and  Director

                                 Charles Schwab Investment Management, Inc.       Chairman and Director

                                 The Charles Schwab Trust Company                 Chairman and Director

                                 Mayer & Schweitzer, Inc.                         Chairman and Director
</TABLE>


                                     C- 5 -
<PAGE>   139
<TABLE>
<CAPTION>
Name and Position
with Registrant                  Name of Company                                  Capacity
- ---------------------------------------------------------------------------------------------------------------------
<S>                              <C>                                              <C>
                                 Schwab Retirement Plan Services, Inc.            Chairman and Director

                                 Charles Schwab Limited                           Chairman, Chief Executive Officer
                                                                                  and Director

                                 Performance Technologies, Inc.                   Chairman and Director

                                 TrustMark, Inc.                                  Chairman and Director

                                 Schwab (SIS) Holdings, Inc. I                    Chairman, Chief Executive Officer
                                                                                  and Director

                                 Schwab International Holdings, Inc.              Chairman, Chief Executive Officer
                                                                                  and Director

                                 The Gap, Inc.                                    Director

                                 Transamerica Corporation                         Director

                                 AirTouch Communications                          Director

                                 Siebel Systems                                   Director

David S. Pottruck                Charles Schwab & Co., Inc.                       Chief Executive Officer and
                                                                                  Director

                                 The Charles Schwab Corporation                   President, Co-Chief Executive
                                                                                  Officer and Director

                                 Schwab Holdings, Inc.                            Director

                                 Schwab Retirement Plan Services, Inc.            Director

                                 Charles Schwab Limited                           Director

                                 Charles Schwab Investment Management, Inc.       Director

                                 Mayer & Schweitzer, Inc.                         Director

                                 Performance Technologies, Inc.                   Director

                                 Schwab (SIS) Holdings, Inc. I                    President, Chief Operating
                                                                                  Officer and Director

                                 Schwab International Holdings, Inc.              President, Chief Operating
                                                                                  Officer and Director
</TABLE>


                                     C- 6 -
<PAGE>   140
<TABLE>
<CAPTION>
Name and Position
with Registrant                  Name of Company                                  Capacity
- ---------------------------------------------------------------------------------------------------------------------
<S>                              <C>                                              <C>
                                 TrustMark, Inc.                                  Director

Steven L. Scheid                 Charles Schwab & Co., Inc.                       Enterprise President - Financial
                                                                                  Products and Services and Chief
                                                                                  Financial Officer

                                 The Charles Schwab Corporation                   Executive Vice President and
                                                                                  Chief Financial Officer

                                 Schwab Holdings, Inc.                            Executive Vice President, Chief
                                                                                  Financial Officer and Director

                                 Charles Schwab Investment Management, Inc.       Chief Executive Officer, Chief
                                                                                  Financial Officer and Director

                                 The Charles Schwab Trust Company                 Director

                                 Charles Schwab Limited                           Finance Officer and Director

                                 Schwab Retirement Plan Services, Inc.            Director

                                 Performance Technologies, Inc.                   Director

                                 Mayer & Schweitzer, Inc.                         Director

                                 Schwab (SIS) Holdings, Inc. I                    Chief Financial Officer and
                                                                                  Director

                                 Schwab International Holdings, Inc.              Chief Financial Officer and
                                                                                  Director

Karen W. Chang                   Charles Schwab & Co., Inc.                       Enterprise President - General
                                                                                  Investor Services

                                 The Charles Schwab Corporation                   Executive Vice President

John P. Coghlan                  Charles Schwab & Co., Inc.                       Enterprise President - Retirement
                                                                                  Plan Services and Services to
                                                                                  Investment Managers

                                 The Charles Schwab Corporation                   Executive Vice President

                                 The Charles Schwab Trust Company                 President, Chief Executive Officer
                                                                                  and Director
</TABLE>


                                    C - 7 -
<PAGE>   141
<TABLE>
<CAPTION>
Name and Position
with Registrant                  Name of Company                                  Capacity
- ---------------------------------------------------------------------------------------------------------------------
<S>                              <C>                                              <C>
                                 Schwab Retirement Plan Services, Inc.            Director

Frances Cole,                    Charles Schwab Investment Management, Inc.       Senior Vice President, Chief
Secretary                                                                         Counsel and Assistant Corporate
                                                                                  Secretary

Linnet F. Deily                  Charles Schwab & Co., Inc.                       President -  Schwab Retail Group

                                 The Charles Schwab Corporation                   Executive Vice President

Christopher V. Dodds             Charles Schwab & Co., Inc.                       Senior Vice President and Controller

                                 The Charles Schwab Corporation                   Senior Vice President and Controller

Carrie Dwyer                     Charles Schwab & Co., Inc.                       Executive Vice President -
                                                                                  Corporate Oversight, General
                                                                                  Counsel and Corporate Secretary

Wayne W. Fieldsa                 Charles Schwab & Co., Inc.                       Enterprise President - Brokerage
                                                                                  Operations

Lon Gorman                       Charles Schwab & Co., Inc.                       Enterprise President - Capital
                                                                                  Markets and Trading

                                 The Charles Schwab Corporation                   Executive Vice President

James M. Hackley                 Charles Schwab & Co., Inc.                       Executive Vice President and Head
                                                                                  of Branches

Cynthia K. Holbrook              The Charles Schwab Corporation                   Assistant Corporate Secretary

                                 Charles Schwab  & Co., Inc.                      Assistant Corporate Secretary

                                 Charles Schwab Investment Management, Inc.       Corporate Secretary

                                 The Charles Schwab Trust Company                 Assistant Corporate Secretary

                                 Mayer & Schweitzer                               Secretary

Colleen M. Hummer                Charles Schwab & Co., Inc.                       Senior Vice President - Mutual Fund
                                                                                  Operations
</TABLE>


                                     C- 8 -
<PAGE>   142
   

<TABLE>
<CAPTION>
Name and Position
with Registrant                  Name of Company                                  Capacity
- ---------------------------------------------------------------------------------------------------------------------
<S>                              <C>                                              <C>
William J. Klipp,                Charles Schwab & Co., Inc.                       Executive Vice President -
Trustee, Executive Vice                                                           SchwabFunds
President and Chief
Operating Officer

                                 Charles Schwab Investment Management, Inc.       President and Chief Operating
                                                                                  Officer

Daniel O. Leemon                 The Charles Schwab Corporation                   Executive Vice President and Chief
                                                                                  Strategy Officer

                                 Charles Schwab & Co., Inc.                       Executive Vice President and Chief
                                                                                  Strategy Officer

Dawn G. Lepore                   Charles Schwab & Co., Inc.                       Executive Vice President and Chief
                                                                                  Information Officer

                                 The Charles Schwab Corporation                   Executive Vice President and Chief
                                                                                  Information Officer

Susanne D. Lyons                 Charles Schwab & Co., Inc.                       Enterprise President - Retail
                                                                                  Investor Specialized Services

                                 The Charles Schwab Corporation                   Executive Vice President


Gideon Sasson                    Charles Schwab & Co., Inc.                       Enterprise President - Brokerage
                                                                                  Operations

                                 The Charles Schwab Corporation                   Executive Vice President

Leonard Short                    Charles Schwab & Co., Inc.                       Executive Vice President - CRS
                                                                                  Advertising and Branch Management

Lawrence J. Stupski              Charles Schwab & Co., Inc.                       Director until February 1995; Vice
                                                                                  Chairman until August 1994

                                 The Charles Schwab Corporation                   Vice Chairman and Director until
                                                                                  May 1998; Chief Operating Officer
                                                                                  until March 1994

                                 Mayer & Schweitzer, Inc.                         Director until February 1995
</TABLE>

                                                C- 9 -

    
<PAGE>   143
<TABLE>
<CAPTION>
Name and Position
with Registrant                  Name of Company                                  Capacity
- ---------------------------------------------------------------------------------------------------------------------
<S>                              <C>                                              <C>
                                 The Charles Schwab Trust Company                 Director until December 1996

Luis E. Valencia                 Charles Schwab & Co., Inc.                       Executive Vice President -
                                                                                  International and Chief
                                                                                  Administrative Officer

                                 The Charles Schwab Corporation                   Executive Vice President and Chief
                                                                                  Administrative Officer

                                 Commercial Credit Corporation                    Managing Director until February
                                                                                  1994

Stephen B. Ward,                 Charles Schwab Investment Management, Inc.       Senior Vice President and Chief
Senior Vice President and                                                         Investment Officer
Chief Investment Officer
</TABLE>

Item 29.    Principal Underwriters.
            -----------------------

            (a) Schwab acts as principal underwriter and distributor of
Registrant's shares. Schwab currently also acts as principal underwriter for the
Schwab Fund Family, Schwab Capital Trust, Schwab Annuity Portfolios and intends
to act as such for any other investment company which Schwab may sponsor in the
future.

            (b) See Item 28(b) for information on the officers and directors of
Schwab. The principal business address of Schwab is 101 Montgomery Street, San
Francisco, California 94104.

            (c) Not applicable.

Item 30.    Location of Accounts and Records.
            ---------------------------------

            All accounts, books and other documents required to be maintained
pursuant to Section 31(a) of the 1940 Act and the Rules thereunder are
maintained at the offices of Registrant (transfer agency and shareholder
records); Registrant's investment manager and administrator, Charles Schwab
Investment Management, Inc., 101 Montgomery Street, San Francisco, California
94104; Registrant's principal underwriter, Charles Schwab & Co., Inc., 101
Montgomery Street, San Francisco, California 94104; Registrant's Custodian, PNC
Bank, National Association, Broad and Market Streets, Philadelphia, Pennsylvania
19809 (ledgers, receipts, and brokerage orders); Registrant's fund accountants,
PFPC, Inc., 400 Bellevue Parkway, Wilmington, Delaware 19809; or Ropes & Gray,
counsel to Registrant, 1301 K Street, N.W., Suite 800 East, Washington, District
of Columbia, 20005 (minute books, bylaws, and declaration of trust).

Item 31.    Management Services.
            --------------------

            Not applicable.

Item 32.    Undertakings.
            -------------

                                    C - 10 -
<PAGE>   144
            (a) Registrant undertakes to call a meeting of Shareholders, at the
request of at least 10% of Registrant's outstanding shares, for the purpose of
voting upon the question of removal of a trustee or trustees and to assist in
communications with other Shareholders as required by Section (16) of the 1940
Act.

            (b) Registrant undertakes to furnish to each person to whom a
prospectus is delivered a copy of Registrant's latest Annual Report to
Shareholders upon request and without charge.


                                    C- 11 -
<PAGE>   145
                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended (the
"1933 Act"), and the Investment Company Act of 1940, as amended, Registrant
certifies that it meets all of the requirements for effectiveness of this
Post-Effective Amendment No. 25 to Registrant's Registration Statement on Form
N-1A pursuant to Rule 485(b) under the 1933 Act and has duly caused this
Post-Effective Amendment No. 25 to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Washington, District of Columbia on
the 28th day of October, 1998.

                                        SCHWAB INVESTMENTS
                                        Registrant

                                        /s/ Charles R. Schwab
                                        ---------------------------
                                        Charles R. Schwab, Chairman

     Pursuant to the requirements of the 1933 Act, this Post Effective Amendment
No. 25 to Registrant's Registration Statement on Form N-1A has been signed below
by the following persons in the capacities indicated this 28th day of October,
1998.

<TABLE>
<CAPTION>
Signature                                    Title                         Date
- ---------                                    -----                         ----
<S>                                <C>                                <C>

/s/ Charles R. Schwab
- ------------------------
Charles R. Schwab                  Chairman and Trustee               October 28, 1998

/s/ Steven L. Scheid
- ------------------------           
Steven L. Scheid                  President and Trustee              October 28, 1998

/s/ William J. Klipp
- ------------------------      
William J. Klipp                   Executive Vice President,          October 28, 1998
                                   Trustee and Chief
                                   Operating Officer

/s/ Donald F. Dorward
- ------------------------
Donald F. Dorward                  Trustee                            October 28, 1998

/s/ Robert G. Holmes
- ------------------------
Robert G. Holmes                   Trustee                            October 28, 1998

/s/ Donald R. Stephens
- ------------------------
Donald R. Stephens                 Trustee                            October 28, 1998

/s/ Michael W. Wilsey
- ------------------------
Michael W. Wilsey                  Trustee                            October 28, 1998

/s/ Tai-Chin Tung
- ------------------------
Tai-Chin Tung                      Treasurer and Principal            October 28, 1998
                                   Financial Officer

By: /s/ Martin E. Lybecker
    ----------------------------------------
        Martin E. Lybecker, Attorney-in-Fact
        pursuant to Powers of Attorney previously filed.
</TABLE>


                                      C-12
<PAGE>   146
                                  EXHIBIT INDEX


     (10)          Opinion of Counsel
     (11)          Consent of Auditors


                                     C- 13 -

<PAGE>   1
                                                                      EXHIBIT 10

[ROPES & GRAY LETTERHEAD]


                                October 28, 1998

Schwab Investments
c/o Charles Schwab Investment
Management, Inc.
101 Montgomery Street
San Francisco, California  94104

Gentlemen:

         You have registered under the Securities Act of 1933, as amended (the
"1933 Act") an indefinite number of shares of beneficial interest ("Shares") of
Schwab Investments ("Trust"), as permitted by Rule 24f-2 under the Investment
Company Act of 1940, as amended (the "1940 Act"). You propose to file a
post-effective amendment on Form N-1A (the "Post-Effective Amendment") to your
Registration Statement as required by Section 10(a)(3) of the 1933 Act and the
Rules thereunder and Section 8(b) of the 1940 Act and the rules thereunder.

         We have examined your Agreement and Declaration of Trust on file in the
office of the Secretary of The Commonwealth of Massachusetts and the Clerk of
the City of Boston. We have also examined a copy of your Bylaws and such other
documents, receipts and records as we have deemed necessary for the purpose of
this opinion.

         Based upon the foregoing, we are of the opinion that the issue and sale
of the authorized but unissued Shares of the Trust have been duly authorized
under Massachusetts law. Upon the original issue and sale of your authorized but
unissued Shares of the Trust and upon receipt of the authorized consideration
therefor in an amount not less than the net asset value of the Shares of the
Trust established and in force at the time of their sale (plus any applicable
sales charge), the Shares of the Trust issued will be validly issued, fully paid
and non-assessable.

         The Trust is an entity of the type commonly known as a "Massachusetts
business trust." Under Massachusetts law, shareholders could, under certain
circumstances, be held personally liable for the obligations of the Trust.
However, the Agreement and Declaration of Trust provides for indemnification out
of the
<PAGE>   2
Schwab Investments
October 28, 1998
Page 2

property of a particular series of shares for all loss and expenses of any
shareholder of that series held personally liable solely by reason of his being
or having been a shareholder. Thus, the risk of shareholder liability is limited
to circumstances in which that series of shares itself would be unable to meet
its obligations.

         We understand that this opinion is to be used in connection with the
filing of the Post-Effective Amendment. We consent to the filing of this opinion
with and as part of your Post-Effective Amendment.

                                                     Sincerely,

                                                     /s/ Ropes & Gray

                                                     Ropes & Gray

<PAGE>   1
                                                                      EXHIBIT 11

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in the Prospectus and
Statements of Additional Information constituting parts of this Post-Effective
Amendment No. 25 to the registration statement on Form N-1A (the "Registration
Statement") of our reports dated October 5, 1998, relating to the financial
statements and financial highlights appearing in the August 31, 1998 Annual
Reports to Shareholders of Schwab Short/Intermediate Tax-Free Bond Fund, Schwab
Long-Term Tax-Free Bond Fund, Schwab California Short/Intermediate Tax-Free Bond
Fund, Schwab California Long-Term Tax-Free Bond Fund, Schwab Short-Term Bond
Market Index Fund and Schwab Total Bond Market Index Fund (all portfolios of
Schwab Investments), which are also incorporated by reference into the
Registration Statement. We also consent to the references to us under the
heading "Financial Highlights" in the Prospectuses and under the heading
"Management of the Trust" in the Statements of Additional Information.


/s/ PricewaterhouseCoopers LLP

San Francisco, California
October 28, 1998



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