FIDELITY ADVISOR SERIES II
497, 2000-02-03
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Like securities of all mutual
funds, these securities have
not been approved or
disapproved by the
Securities and Exchange
Commission, and the
Securities and Exchange
Commission has not
determined if this
prospectus is accurate or
complete. Any
representation to the
contrary is a criminal
offense.

FIDELITY(registered trademark) ADVISOR
MORTGAGE SECURITIES
FUND

CLASS A
(Fund 237, CUSIP 31617K402)

CLASS T
(Fund 239, CUSIP 3   1617K600    )

CLASS B
(Fund 238, CUSIP    31617K501    )

PROSPECTUS
DECEMBER 29, 1999
   REVISED FEBRUARY 3, 2000

(FIDELITY_LOGO_GRAPHIC)(registered trademark)
82 DEVONSHIRE STREET, BOSTON, MA 02109

CONTENTS


FUND SUMMARY             2   INVESTMENT SUMMARY

                         2   PERFORMANCE

                         3   FEE TABLE

FUND BASICS              5   INVESTMENT DETAILS

                         6   VALUING SHARES

SHAREHOLDER INFORMATION  6   BUYING AND SELLING SHARES

                         13  EXCHANGING SHARES

                         13  ACCOUNT FEATURES AND POLICIES

                         17  DIVIDENDS AND CAPITAL GAIN
                             DISTRIBUTIONS

                         17  TAX CONSEQUENCES

FUND SERVICES            18  FUND MANAGEMENT

                         18  FUND DISTRIBUTION

APPENDIX                 22  FINANCIAL HIGHLIGHTS

FUND SUMMARY


INVESTMENT SUMMARY

INVESTMENT OBJECTIVE

ADVISOR MORTGAGE SECURITIES FUND seeks a high level of current income,
consistent with prudent investment risk. In seeking current income,
the fund may also consider the potential for capital gain.

PRINCIPAL INVESTMENT STRATEGIES

Fidelity Management & Research Company (FMR)'s principal investment
strategies include:

(small solid bullet) Normally investing at least 65% of total assets
in investment-grade mortgage-related securities (those of medium and
high quality).

(small solid bullet) Investing in U.S. Government securities and
instruments related to U.S. Government securities.

(small solid bullet) Managing the fund to have similar overall
interest rate risk to the Lehman Brothers Mortgage-Backed Securities
Index.

(small solid bullet) Allocating assets across different market sectors
and maturities.

(small solid bullet) Analyzing a security's structural features and
current pricing, trading opportunities, and the credit quality of its
issuer to select investments.

PRINCIPAL INVESTMENT RISKS

The fund is subject to the following principal investment risks:

(small solid bullet) INTEREST RATE CHANGES. Interest rate increases
can cause the price of a debt security to decrease.

(small solid bullet) PREPAYMENT. The ability of an issuer of a debt
security to repay principal prior to a security's maturity can cause
greater price volatility if interest rates change.

(small solid bullet) ISSUER-SPECIFIC CHANGES. The value of an
individual security or particular type of security can be more
volatile than the market as a whole and can perform differently from
the value of the market as a whole.

An investment in the fund is not a deposit of a bank and is not
insured or guaranteed by the Federal Deposit Insurance Corporation or
any other government agency.

When you sell your shares of the fund, they could be worth more or
less than what you paid for them.

PERFORMANCE

The following information illustrates the fund's performance over the
past year as represented by the performance of Class T, and compares
each class's performance to the performance of a market index and an
average of the performance of similar funds over various periods of
time. Returns are based on past results and are not an indication of
future performance.

YEAR-BY-YEAR RETURNS

The returns in the chart do not include the effect of Class T's
front-end sales charge. If the effect of the sales charge were
reflected, returns would be lower than those shown.

<TABLE>
<CAPTION>
<S>                            <C>  <C>  <C>  <C>  <C>  <C>  <C>  <C>  <C>  <C>
ADVISOR MORTGAGE SECURITIES -
CLASS T

Calendar Years                                                     1998

                                                                   5.56%

</TABLE>


Percentage (%)
Row: 1, Col: 1, Value: nil
Row: 2, Col: 1, Value: nil
Row: 3, Col: 1, Value: nil
Row: 4, Col: 1, Value: nil
Row: 5, Col: 1, Value: nil
Row: 6, Col: 1, Value: nil
Row: 7, Col: 1, Value: nil
Row: 8, Col: 1, Value: nil
Row: 9, Col: 1, Value: nil
Row: 10, Col: 1, Value: 5.56

DURING THE PERIOD SHOWN IN THE CHART FOR CLASS T OF ADVISOR MORTGAGE
SECURITIES, THE HIGHEST RETURN FOR A QUARTER WAS 2.14% (QUARTER ENDING
SEPTEMBER 30, 1998) AND THE LOWEST RETURN FOR A QUARTER WAS 0.25%
(QUARTER ENDING DECEMBER 31, 1998).

THE YEAR-TO-DATE RETURN AS OF SEPTEMBER 30, 1999 FOR CLASS T OF
ADVISOR MORTGAGE SECURITIES FUND WAS 1.35%.

AVERAGE ANNUAL RETURNS

The returns in the following table include the effect of Class A's and
Class T's maximum applicable front-end sales charge and Class B's
contingent deferred sales charge (CDSC).

For the periods ended          Past 1 year  Life of fundA
December 31, 1998

Advisor Mortgage Securities -   0.60%        4.57%
Class A

Advisor Mortgage Securities -   1.86%        5.30%
Class T

Advisor Mortgage Securities -   -0.03%       4.53%
Class B

Lehman Brothers                 6.96%        8.40%
Mortgage-Backed Securities
Index

Lipper U.S. Mortgage Funds      6.08%        n/a
Average

A FROM MARCH 3, 1997.

If FMR had not reimbursed certain class expenses during these periods,
Class A,'s, Class T's and Class B's returns would have been lower.

The Lehman Brothers Mortgage-Backed Securities Index is a market
value-weighted index of 15- and 30- year fixed-rate securities backed
by mortgage pools of the Government National Mortgage Association
(GNMA), Fannie Mae and the Federal Home Loan Mortgage Corporation
(FHLMC), and balloon mortgages with fixed-rate coupons.

The Lipper U.S. Mortgage Funds Average reflects the performance
(excluding sales charges) of mutual funds with similar objectives.

FEE TABLE

The following table describes the fees and expenses that are incurred
when you buy, hold, or sell Class A, Class T, and Class B shares of
the fund. The annual class operating expenses provided below for Class
A and Class T do not reflect the effect of any expense reimbursements
during the period.

SHAREHOLDER FEES (PAID BY THE INVESTOR DIRECTLY)

                               Class A    Class T    Class B

Maximum sales charge (load)    4.75%A     3.50%B     None
on purchases (as a % of
offering price)

Maximum CDSC (as a % of the    NoneC      NoneC      5.00%D
lesser of original purchase
price or redemption proceeds)

Sales charge (load) on         None       None       None
reinvested distributions

A LOWER FRONT-END SALES CHARGES FOR CLASS A MAY BE AVAILABLE WITH
PURCHASE OF $50,000 OR MORE.

B LOWER FRONT-END SALES CHARGES FOR CLASS T MAY BE AVAILABLE WITH
PURCHASE OF $50,000 OR MORE.

C A CDSC OF 0.25% IS ASSESSED ON CERTAIN REDEMPTIONS OF CLASS A AND
CLASS T SHARES ON WHICH A FINDER'S FEE WAS PAID.

D DECLINES OVER 6 YEARS FROM 5.00% TO 0%.

ANNUAL CLASS OPERATING EXPENSES (PAID FROM CLASS ASSETS)

                               Class A    Class T    Class B

Management fee                 0.43%      0.43%      0.43%

Distribution and Service       0.15%      0.25%      0.90%
(12b-1) fee (including 0.25%
Service fee only for Class B)

Other expenses                 0.41%      0.38%      0.29%

Total annual class operating   0.99%      1.06%      1.62%
expensesA

A FMR HAS VOLUNTARILY AGREED TO REIMBURSE CLASS A, CLASS T, AND CLASS
B OF THE FUND TO THE EXTENT THAT TOTAL OPERATING EXPENSES (EXCLUDING
INTEREST, TAXES, SECURITIES LENDING COSTS, BROKERAGE COMMISSIONS, AND
EXTRAORDINARY EXPENSES), AS A PERCENTAGE OF THEIR RESPECTIVE AVERAGE
NET ASSETS, EXCEED THE FOLLOWING RATES:

<TABLE>
<CAPTION>
<S>                          <C>      <C>             <C>      <C>             <C>      <C>
                             Class A  Effective Date  Class T  Effective Date  Class B  Effective Date

Advisor Mortgage Securities   0.90%    3/1/97          1.00%    3/1/97          1.65%    3/1/97

</TABLE>

THESE ARRANGEMENTS CAN BE DISCONTINUED BY FMR AT ANY TIME.

The total operating expenses after reimbursement for Class A and Class
T would have been 0.90% and 1.00%, respectively.

This EXAMPLE helps you compare the cost of investing in the fund with
the cost of investing in other mutual funds.

Let's say, hypothetically, that each class's annual return is 5% and
that your shareholder fees and each class's annual operating expenses
are exactly as described in the fee table. This example illustrates
the effect of fees and expenses, but is not meant to suggest actual or
expected fees and expenses or returns, all of which may vary. For
every $10,000 you invested, here's how much you would pay in total
expenses if you close your account after the number of years indicated
and if you leave your account open:

<TABLE>
<CAPTION>
<S>       <C>           <C>             <C>           <C>             <C>           <C>
          Class A                       Class T                       Class B

          Account open  Account closed  Account open  Account closed  Account open  Account closed

1 year    $ 571         $ 571           $ 454         $ 454           $ 165         $ 665

3 years   $ 775         $ 775           $ 675         $ 675           $ 511         $ 811

5 years   $ 996         $ 996           $ 914         $ 914           $ 811         $ 1,081

10 years  $ 1,630       $ 1,630         $ 1,599       $ 1,599         $ 1,675A      $ 1,675A

</TABLE>

A REFLECTS CONVERSION TO CLASS A SHARES AFTER A MAXIMUM OF SEVEN
YEARS.

FUND BASICS


INVESTMENT DETAILS

INVESTMENT OBJECTIVE

ADVISOR MORTGAGE SECURITIES FUND seeks a high level of current income,
consistent with prudent investment risk. In seeking current income,
the fund may also consider the potential for capital gain.

PRINCIPAL INVESTMENT STRATEGIES

FMR normally invests at least 65% of the fund's total assets in
investment-grade mortgage-related securities (those of medium and high
quality). FMR may also invest the fund's assets in U.S. Government
securities and instruments related to U.S. Government securities.

FMR uses the Lehman Brothers Mortgage-Backed Securities Index as a
guide in structuring the fund and selecting its investments. FMR
manages the fund to have similar overall interest rate risk to the
index. As of October 31, 1999, the dollar-weighted average maturity of
the fund and the index was approximately 8.0 and 7.5 years,
respectively. In determining a security's maturity for purposes of
calculating the fund's average maturity, an estimate of the average
time for its principal to be paid may be used. This can be
substantially shorter than its stated maturity.

FMR allocates the fund's assets among different market sectors (for
example, fixed-rate or adjustable rate mortgages) and different
maturities based on its view of the relative value of each sector or
maturity.

In buying and selling securities for the fund, FMR analyzes a
security's structural features and current price compared to its
estimated long-term value, any short-term trading opportunities
resulting from market inefficiencies, and the credit quality of its
issuer.

To earn additional income for the fund, FMR may use a trading strategy
that involves selling mortgage securities and simultaneously agreeing
to purchase similar securities on a later date at a set price. This
trading strategy may result in an increased portfolio turnover rate
which increases transaction costs and may increase taxable gains.

FMR may use various techniques, such as buying and selling futures
contracts, to increase or decrease the fund's exposure to changing
security prices, interest rates, or other factors that affect security
values. If FMR's strategies do not work as intended, the fund may not
achieve its objective.

DESCRIPTION OF PRINCIPAL SECURITY TYPES

DEBT SECURITIES are used by issuers to borrow money. The issuer
usually pays a fixed, variable, or floating rate of interest, and must
repay the amount borrowed at the maturity of the security. Some debt
securities, such as zero coupon bonds, do not pay current interest but
are sold at a discount from their face values.

U.S. GOVERNMENT SECURITIES are high-quality securities issued or
guaranteed by the U.S. Treasury or by an agency or instrumentality of
the U.S. Government. U.S. Government securities may be backed by the
full faith and credit of the U.S. Treasury, the right to borrow from
the U.S. Treasury, or the agency or instrumentality issuing or
guaranteeing the security.

MORTGAGE SECURITIES are interests in pools of mortgages. Payment of
principal or interest generally depends on the cash flows generated by
the underlying mortgages. Mortgage securities may be U.S. Government
securities or issued by a bank or other financial institution.

PRINCIPAL INVESTMENT RISKS

Many factors affect the fund's performance. The fund's yield and share
price change daily based on changes in interest rates and market
conditions and in response to other economic, political, or financial
developments. The fund's reaction to these developments will be
affected by the types and maturities of securities in which the fund
invests, the financial condition, industry and economic sector, and
geographic location of an issuer, and the fund's level of investment
in the securities of that issuer. When you sell your shares of the
fund, they could be worth more or less than what you paid for them.

The following factors can significantly affect the fund's performance:

INTEREST RATE CHANGES. Debt securities have varying levels of
sensitivity to changes in interest rates. In general, the price of a
debt security can fall when interest rates rise and can rise when
interest rates fall. Securities with longer maturities and mortgage
securities can be more sensitive to interest rate changes. In other
words, the longer the maturity of a security, the greater the impact a
change in interest rates could have on the security's price. In
addition, short-term and long-term interest rates do not necessarily
move in the same amount or the same direction. Short-term securities
tend to react to changes in short-term interest rates, and long-term
securities tend to react to changes in long-term interest rates.

PREPAYMENT. Many types of debt securities, including mortgage
securities, are subject to prepayment risk. Prepayment occurs when the
issuer of a security can repay principal prior to the security's
maturity. Securities subject to prepayment can offer less potential
for gains during a declining interest rate environment and similar or
greater potential for loss in a rising interest rate environment. In
addition, the potential impact of prepayment features on the price of
a debt security can be difficult to predict and result in greater
volatility.

ISSUER-SPECIFIC CHANGES. Changes in the financial condition of an
issuer, changes in specific economic or political conditions that
affect a particular type of security or issuer, and changes in general
economic or political conditions can affect the credit quality or
value of an issuer's securities. Lower-quality debt securities (those
of less than investment-grade quality) tend to be more sensitive to
these changes than higher-quality debt securities.

In response to market, economic, political, or other conditions, FMR
may temporarily use a different investment strategy for defensive
purposes. If FMR does so, different factors could affect the fund's
performance and the fund may not achieve its investment objective.

FUNDAMENTAL INVESTMENT POLICIES

The policies discussed below are fundamental, that is, subject to
change only by shareholder approval.

ADVISOR MORTGAGE SECURITIES FUND seeks a high level of current income,
consistent with prudent investment risk, by investing primarily in
mortgage-related securities. In seeking current income, the fund may
also consider the potential for capital gain.

VALUING SHARES

The fund is open for business each day the New York Stock Exchange
(NYSE) is open.

A class's net asset value per share (NAV) is the value of a single
share. Fidelity normally calculates each class's NAV as of the close
of business of the NYSE, normally 4:00 p.m. Eastern time. However, NAV
may be calculated earlier if trading on the NYSE is restricted or as
permitted by the Securities and Exchange Commission (SEC). The fund's
assets are valued as of this time for the purpose of computing each
class's NAV.

To the extent that the fund's assets are traded in other markets on
days when the NYSE is closed, the value of the fund's assets may be
affected on days when the fund is not open for business. In addition,
trading in some of the fund's assets may not occur on days when the
fund is open for business.

The fund's assets are valued primarily on the basis of information
furnished by a pricing service or market quotations. Certain
short-term securities are valued on the basis of amortized cost. If
market quotations or information furnished by a pricing service is not
readily available for a security or if a security's value has been
materially affected by events occurring after the close of the
exchange or market on which the security is principally traded, that
security may be valued by another method that the Board of Trustees
believes accurately reflects fair value. A security's valuation may
differ depending on the method used for determining value.

SHAREHOLDER INFORMATION


BUYING AND SELLING SHARES

GENERAL INFORMATION

For account, product and service information, please use the following
phone numbers:

(small solid bullet) If you are investing through a broker-dealer or
insurance representative, 1-800-522-7297 (8:30 a.m. - 7:00 p.m.
Eastern time, Monday through Friday).

(small solid bullet) If you are investing through a bank
representative, 1-800-843-3001 (8:30 a.m. - 7:00 p.m. Eastern time,
Monday through Friday).

Please use the following addresses:

BUYING OR SELLING SHARES

Fidelity Investments(registered trademark)
P.O. Box 770002
Cincinnati, OH 45277-0081

OVERNIGHT EXPRESS
Fidelity Investments
2300 Litton Lane - KH2A
Hebron, KY 41048

You may buy or sell Class A, Class T, and Class B shares of the fund
through a retirement account or an investment professional. When you
invest through a retirement account or an investment professional, the
procedures for buying, selling, and exchanging Class A, Class T, and
Class B shares of the fund and the account features and policies may
differ. Additional fees may also apply to your investment in Class A,
Class T, and Class B shares of the fund, including a transaction fee
if you buy or sell Class A, Class T, and Class B shares of the fund
through a broker or other investment professional.

Certain methods of contacting Fidelity, such as by telephone, may be
unavailable or delayed (for example, during periods of unusual market
activity).

The different ways to set up (register) your account with Fidelity are
listed in the following table.

WAYS TO SET UP YOUR ACCOUNT

INDIVIDUAL OR JOINT TENANT
FOR YOUR GENERAL INVESTMENT NEEDS

RETIREMENT
FOR TAX-ADVANTAGED RETIREMENT SAVINGS
(solid bullet) TRADITIONAL INDIVIDUAL RETIREMENT ACCOUNTS (IRAS)
(solid bullet) ROTH IRAS
(solid bullet) ROLLOVER IRAS
(solid bullet) 401(K) PLANS AND CERTAIN OTHER
               401(A)-QUALIFIED PLANS
(solid bullet) KEOGH PLANS
(solid bullet) SIMPLE IRAS
(solid bullet) SIMPLIFIED EMPLOYEE PENSION PLANS(SEP-IRAS)
(solid bullet) SALARY REDUCTION SEP-IRAS (SARSEPS)

GIFTS OR TRANSFERS TO A MINOR (UGMA, UTMA)
TO INVEST FOR A CHILD'S EDUCATION OR OTHER FUTURE NEEDS

TRUST
FOR MONEY BEING INVESTED BY A TRUST

BUSINESS OR ORGANIZATION
FOR INVESTMENT NEEDS OF CORPORATIONS, ASSOCIATIONS, PARTNERSHIPS OR
OTHER GROUPS

BUYING SHARES

The price to buy one share of Class A or Class T is the class's
offering price or the class's NAV, depending on whether you pay a
front-end sales charge.

For Class B, the price to buy one share is the class's NAV. Class B
shares are sold without a front-end sales charge, but may be subject
to a CDSC upon redemption.

If you pay a front-end sales charge, your price will be Class A's or
Class T's offering price. When you buy Class A or Class T shares at
the offering price, Fidelity deducts the appropriate sales charge and
invests the rest in Class A or Class T shares of the fund. If you
qualify for a front-end sales charge waiver, your price will be Class
A's or Class T's NAV.

The offering price of Class A or Class T is its NAV divided by the
difference between one and the applicable front-end sales charge
percentage. Class A has a maximum front-end sales charge of 4.75% of
the offering price. Class T has a maximum front-end sales charge of
3.50% of the offering price.

Your shares will be bought at the next offering price or NAV, as
applicable, calculated after your order is received in proper form.

It is the responsibility of your investment professional to transmit
your order to buy shares to Fidelity before the close of business on
the day you place your order.

Short-term or excessive trading into and out of the fund may harm
performance by disrupting portfolio management strategies and by
increasing expenses. Accordingly, the fund may reject any purchase
orders, including exchanges, particularly from market timers or
investors who, in FMR's opinion, have a pattern of short-term or
excessive trading or whose trading has been or may be disruptive to
the fund. For these purposes, FMR may consider an investor's trading
history in the fund or other Fidelity funds, and accounts under common
ownership or control.

The fund may stop offering shares completely or may offer shares only
on a limited basis, for a period of time or permanently.

When you place an order to buy shares, note the following:

(small solid bullet) All of your purchases must be made in U.S.
dollars and checks must be drawn on U.S. banks.

(small solid bullet) Fidelity does not accept cash.

(small solid bullet) When making a purchase with more than one check,
each check must have a value of at least $50.

(small solid bullet) Fidelity reserves the right to limit the number
of checks processed at one time.

(small solid bullet) Fidelity must receive payment within three
business days after an order for shares is placed; otherwise your
purchase order may be canceled and you could be liable for any losses
or fees the fund or Fidelity has incurred.

(small solid bullet) If your check does not clear, your purchase will
be canceled and you could be liable for any losses or fees the fund or
Fidelity has incurred.

Shares can be bought or sold through investment professionals using an
automated order placement and settlement system that guarantees
payment for orders on a specified date.

Certain financial institutions that meet creditworthiness criteria
established by Fidelity Distributors Corporation (FDC) may enter
confirmed purchase orders on behalf of customers by phone, with
payment to follow no later than close of business on the next business
day. If payment is not received by that time, the order will be
canceled and the financial institution will be liable for any losses.

MINIMUMS

TO OPEN AN ACCOUNT                           $2,500

For certain Fidelity Advisor retirement
accountsA                                    $500

Through regular investment plansB            $100

TO ADD TO AN ACCOUNT                         $100

MINIMUM BALANCE                              $1,000

For certain Fidelity Advisor retirement
accountsA                                    None

A FIDELITY ADVISOR TRADITIONAL IRA, ROTH IRA, ROLLOVER IRA, SEP-IRA,
AND KEOGH ACCOUNTS.

B AN ACCOUNT MAY BE OPENED WITH A MINIMUM OF $100, PROVIDED THAT A
REGULAR INVESTMENT PLAN IS ESTABLISHED AT THE TIME THE ACCOUNT IS
OPENED.

There is no minimum account balance or initial or subsequent purchase
minimum for certain Fidelity retirement accounts funded through salary
deduction, or accounts opened with the proceeds of distributions from
such retirement accounts. In addition, the fund may waive or lower
purchase minimums in other circumstances.

Purchase and account minimums are waived for purchases of Class T
shares with distributions from a Fidelity Defined Trust account.

PURCHASE AMOUNTS OF MORE THAN $250,000 WILL NOT BE ACCEPTED FOR CLASS
B SHARES.

KEY INFORMATION

PHONE                        TO OPEN AN ACCOUNT
                             (small solid bullet) Exchange
                             from the same class of
                             another Fidelity Advisor
                             fund or from certain other
                             Fidelity funds. Call your
                             investment professional or
                             call Fidelity at the
                             appropriate number found in
                             "General Information."

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Exchange
                             from the same class of
                             another Fidelity Advisor
                             fund or from certain other
                             Fidelity funds. Call your
                             investment professional or
                             call Fidelity at the
                             appropriate number found in
                             "General Information."

MAIL FIDELITY INVESTMENTS    TO OPEN AN ACCOUNT
P.O. BOX 770002 CINCINNATI,  (small solid bullet) Complete
OH 45277-0081                and sign the application.
                             Make your check payable to
                             the complete name of the
                             fund and note the applicable
                             class. Mail to your
                             investment professional or
                             to the address at left.

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Make
                             your check payable to the
                             complete name of the fund
                             and note the applicable
                             class. Indicate your fund
                             account number on your check
                             and mail to your investment
                             professional or to the
                             address at left.
                             (small solid bullet) Exchange
                             from the same class of other
                             Fidelity Advisor funds or
                             from certain other Fidelity
                             funds. Send a letter of
                             instruction to your
                             investment professional or
                             to the address at left,
                             including your name, the
                             funds' names, the applicable
                             class names, the fund
                             account numbers, and the
                             dollar amount or number of
                             shares to be exchanged.

IN PERSON                    TO OPEN AN ACCOUNT
                             (small solid bullet) Bring
                             your application and check
                             to your investment
                             professional.

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Bring
                             your check to your
                             investment professional.

WIRE                         TO OPEN AN ACCOUNT
                             (small solid bullet) Call
                             your investment professional
                             or call Fidelity at the
                             appropriate number found in
                             "General Information" to set
                             up your account and to
                             arrange a wire transaction.
                             (small solid bullet) Wire to:
                             Bankers Trust Company, Bank
                             Routing # 021001033, Account
                             # 00159759.
                             (small solid bullet) Specify
                             the complete name of the
                             fund, note the applicable
                             class, and include your new
                             fund account number and your
                             name.

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Wire to:
                             Bankers Trust Company, Bank
                             Routing # 021001033, Account
                             # 00159759.
                             (small solid bullet) Specify
                             the complete name of the
                             fund, note the applicable
                             class, and include your fund
                             account number and your name.

AUTOMATICALLY                TO OPEN AN ACCOUNT
                             (small solid bullet) Not
                             available.

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Use
                             Fidelity Advisor Systematic
                             Investment Program.
                             (small solid bullet) Use
                             Fidelity Advisor Systematic
                             Exchange Program to exchange
                             from certain Fidelity money
                             market funds or a Fidelity
                             Advisor fund.

SELLING SHARES

The price to sell one share of each class is the class's NAV, minus
any applicable CDSC.

If appropriate to protect shareholders, the fund may impose a
redemption fee (trading fee) on redemptions from the fund.

Any applicable contingent deferred sales charge is calculated based on
your original redemption amount.

Your shares will be sold at the next NAV calculated after your order
is received in proper form, minus any applicable CDSC.

It is the responsibility of your investment professional to transmit
your order to sell shares to Fidelity before the close of business on
the day you place your order.

Certain requests must include a signature guarantee. It is designed to
protect you and Fidelity from fraud. Your request must be made in
writing and include a signature guarantee if any of the following
situations apply:

(small solid bullet) You wish to sell more than $100,000 worth of
shares;

(small solid bullet) Your account registration has changed within the
last 15 or 30 days, depending on your account;

(small solid bullet) The check is being mailed to a different address
than the one on your account (record address);

(small solid bullet) The check is being made payable to someone other
than the account owner; or

(small solid bullet) The redemption proceeds are being transferred to
a Fidelity account with a different registration.

You should be able to obtain a signature guarantee from a bank,
broker, dealer, credit union (if authorized under state law),
securities exchange or association, clearing agency, or savings
association. A notary public cannot provide a signature guarantee.

When you place an order to sell shares, note the following:
(small solid bullet) If you are selling some but not all of your
shares, leave at least $1,000 worth of shares in the account to keep
it open, except accounts not subject to account minimums.

(small solid bullet) Normally, Fidelity will process redemptions by
the next business day, but Fidelity may take up to seven days to
process redemptions if making immediate payment would adversely affect
the fund.

(small solid bullet) Redemption proceeds (other than exchanges) may be
delayed until money from prior purchases sufficient to cover your
redemption has been received and collected. This can take up to seven
business days after a purchase.

(small solid bullet) Redemptions may be suspended or payment dates
postponed when the NYSE is closed (other than weekends or holidays),
when trading on the NYSE is restricted, or as permitted by the SEC.

(small solid bullet) Redemption proceeds may be paid in securities or
other property rather than in cash if FMR determines it is in the best
interests of the fund.

(small solid bullet) You will not receive interest on amounts
represented by uncashed redemption checks.

(small solid bullet) Unless otherwise instructed, Fidelity will send a
check to the record address.

To sell shares issued with certificates, call Fidelity for
instructions. The fund no longer issues share certificates.

KEY INFORMATION

PHONE                        (small solid bullet) Call
                             your investment professional
                             or call Fidelity at the
                             appropriate number found in
                             "General Information" to
                             initiate a wire transaction
                             or to request a check for
                             your redemption.

                             (small solid bullet) Exchange
                             to the same class of other
                             Fidelity Advisor funds or to
                             certain other Fidelity
                             funds. Call your investment
                             professional or call
                             Fidelity at the appropriate
                             number found in "General
                             Information."

MAIL FIDELITY INVESTMENTS    INDIVIDUAL, JOINT TENANT,
P.O. BOX 770002 CINCINNATI,  SOLE PROPRIETORSHIP, UGMA,
OH 45277-0081                UTMA
                             (small solid bullet) Send a
                             letter of instruction to
                             your investment professional
                             or to the address at left,
                             including your name, the
                             fund's name, the applicable
                             class name, your fund
                             account number, and the
                             dollar amount or number of
                             shares to be sold. The
                             letter of instruction must
                             be signed by all persons
                             required to sign for
                             transactions, exactly as
                             their names appear on the
                             account.

                             RETIREMENT ACCOUNT
                             (small solid bullet) The
                             account owner should
                             complete a retirement
                             distribution form. Call your
                             investment professional or
                             call Fidelity at the
                             appropriate number found in
                             "General Information" to
                             request one.

                             TRUST
                             (small solid bullet) Send a
                             letter of instruction to
                             your investment professional
                             or to the address at left,
                             including the trust's name,
                             the fund's name, the
                             applicable class name, the
                             trust's fund account number,
                             and the dollar amount or
                             number of shares to be sold.
                             The trustee must sign the
                             letter of instruction
                             indicating capacity as
                             trustee. If the trustee's
                             name is not in the account
                             registration, provide a copy
                             of the trust document
                             certified within the last 60
                             days.

                             BUSINESS OR ORGANIZATION
                             (small solid bullet) Send a
                             letter of instruction to
                             your investment professional
                             or to the address at left,
                             including the firm's name,
                             the fund's name, the
                             applicable class name, the
                             firm's fund account number,
                             and the dollar amount or
                             number of shares to be sold.
                             At least one person
                             authorized by corporate
                             resolution to act on the
                             account must sign the letter
                             of instruction.

                             (small solid bullet) Include
                             a corporate resolution with
                             corporate seal or a
                             signature guarantee.

                             EXECUTOR, ADMINISTRATOR,
                             CONSERVATOR, GUARDIAN
                             (small solid bullet) Call
                             your investment professional
                             or call Fidelity at the
                             appropriate number found in
                             "General Information" for
                             instructions.

IN PERSON                    INDIVIDUAL, JOINT TENANT,
                             SOLE PROPRIETORSHIP, UGMA,
                             UTMA
                             (small solid bullet) Bring a
                             letter of instruction to
                             your investment
                             professional. The letter of
                             instruction must be signed
                             by all persons required to
                             sign for transactions,
                             exactly as their names
                             appear on the account.

                             RETIREMENT ACCOUNT
                             (small solid bullet) The
                             account owner should
                             complete a retirement
                             distribution form. Visit
                             your investment professional
                             to request one.

                             TRUST
                             (small solid bullet) Bring a
                             letter of instruction to
                             your investment
                             professional. The trustee
                             must sign the letter of
                             instruction indicating
                             capacity as trustee. If the
                             trustee's name is not in the
                             account registration,
                             provide a copy of the trust
                             document certified within
                             the last 60 days.

                             BUSINESS OR ORGANIZATION
                             (small solid bullet) Bring a
                             letter of instruction to
                             your investment
                             professional. At least one
                             person authorized by
                             corporate resolution to act
                             on the account must sign the
                             letter of instruction.

                             (small solid bullet) Include
                             a corporate resolution with
                             corporate seal or a
                             signature guarantee.

                             EXECUTOR, ADMINISTRATOR,
                             CONSERVATOR, GUARDIAN
                             (small solid bullet) Visit
                             your investment professional
                             for instructions.

AUTOMATICALLY                (small solid bullet) Use
                             Fidelity Advisor Systematic
                             Exchange Program to exchange
                             to the same class of another
                             Fidelity Advisor fund or to
                             certain Fidelity funds.

                             (small solid bullet) Use
                             Fidelity Advisor Systematic
                             Withdrawal Program to set up
                             periodic redemptions from
                             your Class A, Class T, and
                             Class B account.

EXCHANGING SHARES

An exchange involves the redemption of all or a portion of the shares
of one fund and the purchase of shares of another fund.

As a Class A shareholder, you have the privilege of exchanging Class A
shares of the fund for the same class of shares of other Fidelity
Advisor funds at NAV or for Daily Money Class shares of Treasury Fund,
Prime Fund or Tax-Exempt Fund.

As a Class T shareholder, you have the privilege of exchanging Class T
shares of the fund for the same class of shares of other Fidelity
Advisor funds at NAV or for Daily Money Class shares of Treasury Fund,
Prime Fund or Tax-Exempt Fund. If you purchased your Class T shares
through certain investment professionals that have signed an agreement
with FDC, you also have the privilege of exchanging your Class T
shares for shares of Fidelity Capital Appreciation Fund.

As a Class B shareholder, you have the privilege of exchanging Class B
shares of the fund for the same class of shares of other Fidelity
Advisor funds or for Advisor B Class shares of Treasury Fund.

However, you should note the following policies and restrictions
governing exchanges:

(small solid bullet) The fund or class you are exchanging into must be
available for sale in your state.

(small solid bullet) You may exchange only between accounts that are
registered in the same name, address, and taxpayer identification
number.

(small solid bullet) Before exchanging into a fund or class, read its
prospectus.

(small solid bullet) Exchanges may have tax consequences for you.

(small solid bullet) The fund may temporarily or permanently terminate
the exchange privilege of any investor who makes more than four
exchanges out of the fund per calendar year. Accounts under common
ownership or control will be counted together for purposes of the four
exchange limit.

(small solid bullet) The exchange limit may be modified for accounts
held by certain institutional retirement plans to conform to plan
exchange limits and Department of Labor regulations. See your plan
materials for further information.

(small solid bullet) The fund may refuse exchange purchases by any
person or group if, in FMR's judgment, the fund would be unable to
invest the money effectively in accordance with its investment
objective and policies, or would otherwise potentially be adversely
affected.

(small solid bullet) Any exchanges of Class A, Class T, and Class B
shares are not subject to a CDSC.

The fund may terminate or modify the exchange privilege in the future.
Other funds may have different exchange restrictions, and may impose
trading fees of up to 1.00% of the amount exchanged. Check each fund's
prospectus for details.

ACCOUNT FEATURES AND POLICIES

FEATURES

The following features are available to buy and sell shares of the
fund.

AUTOMATIC INVESTMENT AND WITHDRAWAL PROGRAMS. Fidelity offers
convenient services that let you automatically transfer money into
your account, between accounts, or out of your account. While
automatic investment programs do not guarantee a profit and will not
protect you against loss in a declining market, they can be an
excellent way to invest for retirement, a home, educational expenses,
and other long-term financial goals. Automatic withdrawal or exchange
programs can be a convenient way to provide a consistent income flow
or to move money between your investments.

<TABLE>
<CAPTION>
<S>                              <C>  <C>                          <C>
FIDELITY ADVISOR SYSTEMATIC
INVESTMENT PROGRAM TO MOVE
MONEY FROM YOUR BANK ACCOUNT
TO A FIDELITY ADVISOR FUND.

MINIMUM    MINIMUM                   FREQUENCY                    PROCEDURES
INITIAL    ADDITIONAL                Monthly, bimonthly,          (small solid bullet) To set
$100       $100                      quarterly, or semi-annually  up for a new account,
                                                                  complete the appropriate
                                                                  section on the application.

                                                                  (small solid bullet) To set
                                                                  up for existing accounts,
                                                                  call your investment
                                                                  professional or call
                                                                  Fidelity at the appropriate
                                                                  number found in "General
                                                                  Information" for an
                                                                  application.

                                                                  (small solid bullet) To make
                                                                  changes, call your
                                                                  investment professional or
                                                                  call Fidelity at the
                                                                  appropriate number found in
                                                                  "General Information." Call
                                                                  at least 10 business days
                                                                  prior to your next scheduled
                                                                  investment date.

TO DIRECT DISTRIBUTIONS FROM
A FIDELITY DEFINED TRUST TO
CLASS T OF A FIDELITY
ADVISOR FUND.

MINIMUM       MINIMUM                                             PROCEDURES
INITIAL       ADDITIONAL                                          (small solid bullet) To set
Not           Not Applicable                                      up for a new or existing
Applicable                                                        account, call your
                                                                  investment professional or
                                                                  call Fidelity at the
                                                                  appropriate number found in
                                                                  "General Information" for
                                                                  the appropriate enrollment
                                                                  form.

                                                                  (small solid bullet) To make
                                                                  changes, call your
                                                                  investment professional or
                                                                  call Fidelity at the
                                                                  appropriate number found in
                                                                  "General Information."

</TABLE>


<TABLE>
<CAPTION>
<S>                           <C>      <C>  <C>                             <C>
FIDELITY ADVISOR SYSTEMATIC
EXCHANGE PROGRAM TO MOVE
MONEY FROM CERTAIN FIDELITY
MONEY MARKET FUNDS TO CLASS
A, CLASS T, OR CLASS B OF A
FIDELITY ADVISOR FUND OR
FROM CLASS A, CLASS T, OR
CLASS B OF A FIDELITY
ADVISOR FUND TO THE SAME
CLASS OF ANOTHER FIDELITY
ADVISOR FUND.

MINIMUM                                    FREQUENCY                       PROCEDURES
$100                                       Monthly, quarterly,             (small solid bullet) To set
                                           semi-annually, or annually      up, call your investment
                                                                           professional or call
                                                                           Fidelity at the appropriate
                                                                           number found in "General
                                                                           Information" after both
                                                                           accounts are opened.

                                                                           (small solid bullet) To make
                                                                           changes, call your
                                                                           investment professional or
                                                                           call Fidelity at the
                                                                           appropriate number found in
                                                                           "General Information." Call
                                                                           at least 2 business days
                                                                           prior to your next scheduled
                                                                           exchange date.

                                                                           (small solid bullet) The
                                                                           account from which the
                                                                           exchanges are to be
                                                                           processed must have a
                                                                           minimum balance of $10,000.
                                                                           The account into which the
                                                                           exchange is being processed
                                                                           must have a minimum balance
                                                                           of $1,000.

FIDELITY ADVISOR SYSTEMATIC
WITHDRAWAL PROGRAM TO SET UP
PERIODIC REDEMPTIONS FROM
YOUR CLASS A, CLASS T, OR
CLASS B ACCOUNT TO YOU OR TO
YOUR BANK CHECKING ACCOUNT.

MINIMUM                       MAXIMUM      FREQUENCY                       PROCEDURES
$100                          $50,000      Class A and Class T: Monthly,   (small solid bullet) Accounts
                                           quarterly, or semi-annually     with a value of $10,000 or
                                           Class B: Monthly or quarterly   more in Class A, Class T or
                                                                           Class B shares are eligible
                                                                           for this program.

                                                                           (small solid bullet) To set
                                                                           up, call your investment
                                                                           professional or call
                                                                           Fidelity at the appropriate
                                                                           number found in "General
                                                                           Information" for instructions.

                                                                           (small solid bullet) To make
                                                                           changes, call your
                                                                           investment professional or
                                                                           call Fidelity at the
                                                                           appropriate number found in
                                                                           "General Information." Call
                                                                           at least 10 business days
                                                                           prior to your next scheduled
                                                                           withdrawal date.

                                                                           (small solid bullet)
                                                                           Aggregate redemptions per
                                                                           12-month period from your
                                                                           Class B account may not
                                                                           exceed 10% of the account
                                                                           value and are not subject to
                                                                           a CDSC; and you may set your
                                                                           withdrawal amount as a
                                                                           percentage of the value of
                                                                           your account or a fixed
                                                                           dollar amount.

                                                                           (small solid bullet) Because
                                                                           of Class A's and Class T's
                                                                           front-end sales charge, you
                                                                           may not want to set up a
                                                                           systematic withdrawal plan
                                                                           during a period when you are
                                                                           buying Class A or Class T
                                                                           shares on a regular basis.

</TABLE>

OTHER FEATURES. The following other features are also available to buy
and sell shares of the fund.

WIRE
TO PURCHASE AND SELL SHARES VIA THE FEDERAL RESERVE WIRE SYSTEM.

(small solid bullet) You must sign up for the Wire feature before
using it. Complete the appropriate section on the application when
opening your account.

(small solid bullet) Call your investment professional or call
Fidelity at the appropriate number found in "General Information"
before your first use to verify that this feature is set up on your
account.

(small solid bullet) To sell shares by wire, you must designate the
U.S. commercial bank account(s) into which you wish the redemption
proceeds deposited.

(small solid bullet) To add the wire feature or to change the bank
account designated to receive redemption proceeds at any time prior to
making a redemption request, you should send a letter of instruction,
including a signature guarantee, to your investment professional or to
Fidelity at the address found in "General Information."

POLICIES

The following policies apply to you as a shareholder.

STATEMENTS AND REPORTS that Fidelity sends to you include the
following:

(small solid bullet) Confirmation statements (after transactions
affecting your account balance except reinvestment of distributions in
the fund or another fund and certain transactions through automatic
investment or withdrawal programs).

(small solid bullet) Monthly or quarterly account statements
(detailing account balances and all transactions completed during the
prior month or quarter).

(small solid bullet) Financial reports (every six months).

To reduce expenses, only one copy of most financial reports and
prospectuses will be mailed, even if you have more than one account in
the fund. Call Fidelity at 1-888-622-3175 if you need additional
copies of financial reports or prospectuses.

You may initiate many TRANSACTIONS BY TELEPHONE OR ELECTRONICALLY.
Fidelity will not be responsible for any losses resulting from
unauthorized transactions if it follows reasonable security procedures
designed to verify the identity of the investor. Fidelity will request
personalized security codes or other information, and may also record
calls. For transactions conducted through the Internet, Fidelity
recommends the use of an Internet browser with 128-bit encryption. You
should verify the accuracy of your confirmation statements immediately
after you receive them. If you do not want the ability to sell and
exchange by telephone, call Fidelity for instructions. Additional
documentation may be required from corporations, associations, and
certain fiduciaries.

When you sign your ACCOUNT APPLICATION, you will be asked to certify
that your social security or taxpayer identification number is correct
and that you are not subject to 31% backup withholding for failing to
report income to the IRS. If you violate IRS regulations, the IRS can
require the fund to withhold 31% of your taxable distributions and
redemptions.

If your ACCOUNT BALANCE falls below $1,000 (except accounts not
subject to account minimums), you will be given 30 days' notice to
reestablish the minimum balance. If you do not increase your balance,
Fidelity may close your account and send the proceeds to you. Your
shares will be sold at the NAV, minus any applicable CDSC, on the day
your account is closed.

Fidelity may charge a FEE FOR CERTAIN SERVICES, such as providing
historical account documents.

DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS

The fund earns interest, dividends, and other income from its
investments, and distributes this income (less expenses) to
shareholders as dividends. The fund also realizes capital gains from
its investments, and distributes these gains (less any losses) to
shareholders as capital gain distributions.

The fund normally declares dividends daily and pays them monthly. The
fund normally pays capital gain distributions in December.

EARNING DIVIDENDS

Shares of the fund purchased by an automated purchase order begin to
earn dividends on the day your payment is received.

Shares of the fund purchased by all other purchase orders begin to
earn dividends on the first business day following the day your
payment is received.

Shares of the fund earn dividends until, but not including, the next
business day following the day of redemption.

DISTRIBUTION OPTIONS

When you open an account, specify on your application how you want to
receive your distributions. The following options may be available for
each class's distributions:

1. REINVESTMENT OPTION. Your dividends and capital gain distributions
will be automatically reinvested in additional shares of the same
class of the fund. If you do not indicate a choice on your
application, you will be assigned this option.

2. INCOME-EARNED OPTION. Your capital gain distributions will be
automatically reinvested in additional shares of the same class of the
fund. Your dividends will be paid in cash.

3. CASH OPTION. Your dividends and capital gain distributions will be
paid in cash.

4. DIRECTED DIVIDENDS(registered trademark) OPTION. Your dividends
will be automatically invested in the same class of shares of another
identically registered Fidelity Advisor fund or shares of certain
identically registered Fidelity funds. Your capital gain distributions
will be automatically invested in the same class of shares of another
identically registered Fidelity Advisor fund or shares of certain
identically registered Fidelity funds, automatically reinvested in
additional shares of the same class of the fund, or paid in cash.

Not all distribution options are available for every account. If the
option you prefer is not listed on your account application, or if you
want to change your current option, contact your investment
professional directly or call Fidelity.

If you elect to receive distributions paid in cash by check and the
U.S. Postal Service does not deliver your checks, your distribution
option may be converted to the Reinvestment Option. You will not
receive interest on amounts represented by uncashed distribution
checks.

TAX CONSEQUENCES

As with any investment, your investment in the fund could have tax
consequences for you. If you are not investing through a
tax-advantaged retirement account, you should consider these tax
consequences.

TAXES ON DISTRIBUTIONS. Distributions you receive from the fund are
subject to federal income tax, and may also be subject to state or
local taxes.

For federal tax purposes, the fund's dividends and distributions of
short-term capital gains are taxable to you as ordinary income, while
the fund's distributions of long-term capital gains are taxable to you
generally as capital gains.

If a fund's distributions exceed its income and capital gains realized
in any year, all or a portion of those distributions may be treated as
a return of capital to shareholders for tax purposes. A return of
capital generally will not be taxable to you but will reduce the cost
basis of your shares and result in a higher reported capital gain or a
lower reported capital loss when you sell your shares.

If you buy shares when a fund has realized but not yet distributed
income or capital gains, you will be "buying a dividend" by paying the
full price for the shares and then receiving a portion of the price
back in the form of a taxable distribution.

Any taxable distributions you receive from the fund will normally be
taxable to you when you receive them, regardless of your distribution
option.

TAXES ON TRANSACTIONS. Your redemptions, including exchanges, may
result in a capital gain or loss for federal tax purposes. A capital
gain or loss on your investment in the fund generally is the
difference between the cost of your shares and the price you receive
when you sell them.

FUND SERVICES


FUND MANAGEMENT

Advisor Mortgage Securities is a mutual fund, an investment that pools
shareholders' money and invests it toward a specified goal.

FMR is the fund's manager.

As of March 25, 1999, FMR had approximately $521.7 billion in
discretionary assets under management.

As the manager, FMR is responsible for choosing the fund's investments
and handling its business affairs.

Affiliates assist FMR with foreign investments:

(small solid bullet) Fidelity Management & Research (U.K.) Inc. (FMR
U.K.), in London, England, serves as a sub-adviser for the fund. FMR
U.K. was organized in 1986 to provide investment research and advice
to FMR. Currently, FMR U.K. provides investment research and advice on
issuers based outside the United States and may also provide
investment advisory services for the fund.

(small solid bullet) Fidelity Management & Research Far East Inc. (FMR
Far East), in Tokyo, Japan, serves as a sub-adviser for the fund. FMR
Far East was organized in 1986 to provide investment research and
advice to FMR. Currently, FMR Far East provides investment research
and advice on issuers based outside the United States and may also
provide investment advisory services for the fund.

(small solid bullet) Effective January 1, 2000, Fidelity Investment
Japan Ltd. (FIJ), in Tokyo, Japan, will serve as a sub-adviser for the
fund. As of September 28, 1999, FIJ had approximately $16.3 billion in
discretionary assets under management. FIJ will provide investment
research and advice on issuers based outside the United States for the
fund.

Fidelity Investments Money Management, Inc. (FIMM), in Merrimack, New
Hampshire, serves as sub-adviser for the fund. FIMM is primarily
responsible for choosing investments for the fund.

FIMM is an affiliate of FMR. As of March 29, 1999, FIMM had
approximately $159.8 in discretionary assets under management.

The fund could be adversely affected if the computer systems used by
FMR and other service providers do not properly process and calculate
date-related information from and after January 1, 2000. FMR has
advised the fund that it is actively working on necessary changes to
its computer systems and expects that its systems, and those of other
major service providers, will be modified prior to January 1, 2000.
However, there can be no assurance that there will be no adverse
impact on the fund.

Thomas Silvia is vice president and manager of Advisor Mortgage
Securities, which he has managed since October 1997; he was a
co-manager of the fund since February 1997. He also manages other
Fidelity funds. Mr. Silvia joined Fidelity as a senior mortgage trader
in 1993.

From time to time a manager, analyst or other Fidelity employee may
express views regarding a particular company, security, industry, or
market sector. The views expressed by any such person are the views of
only that individual as of the time expressed and do not necessarily
represent the views of Fidelity or any other person in the Fidelity
organization. Any such views are subject to change at any time based
upon market or other conditions and Fidelity disclaims any
responsibility to update such views. These views may not be relied on
as investment advice and, because investment decisions for a Fidelity
fund are based on numerous factors, may not be relied on as an
indication of trading intent on behalf of any Fidelity fund.

Fidelity investment personnel may invest in securities for their own
investment accounts pursuant to a code of ethics that establishes
procedures for personal investing and restricts certain transactions.

The fund pays a management fee to FMR. The management fee is
calculated and paid to FMR every month. The fee is calculated by
adding a group fee rate to an individual fund fee rate, dividing by
twelve, and multiplying the result by the fund's average net assets
throughout the month.

The group fee rate is based on the average net assets of all the
mutual funds advised by FMR. This rate cannot rise above 0.37%, and it
drops as total assets under management increase.

For October 1999, the group fee rate was 0.1289%. The individual fund
fee rate is 0.30%.

The total management fee for the fiscal year ended October 31, 1999,
was 0.43% of the fund's average net assets.

FMR pays FIMM, FMR U.K. and FMR Far East for providing assistance with
investment advisory services. FMR Far East will pay FIJ for providing
assistance with investment advisory services.

FMR may, from time to time, agree to reimburse a class for management
fees and other expenses above a specified limit. FMR retains the
ability to be repaid by a class if expenses fall below the specified
limit prior to the end of the fiscal year. Reimbursement arrangements
may be discontinued by FMR at any time, can decrease a class's
expenses and boost its performance.

FUND DISTRIBUTION

The fund is composed of multiple classes of shares. All classes of the
fund have a common investment objective and investment portfolio.

FDC distributes each class's shares.

You may pay a sales charge when you buy or sell your shares.

FDC collects the sales charge.

The front-end sales charge will be reduced for purchases of Class A
and Class T shares according to the sales charge schedules below.

<TABLE>
<CAPTION>
<S>                        <C>                       <C>                         <C>
SALES CHARGES AND CONCESSIONS -
CLASS A
                           Sales Charge

                           As a % of offering price  As an approximate % of net  Investment professional
                                                     amount invested             concession as % of offering
                                                                                 price

Up to $49,999               4.75%                     4.99%                       4.25%

$50,000 to $99,999          4.50%                     4.71%                       4.00%

$100,000 to $249,999        3.50%                     3.63%                       3.00%

$250,000 to $499,999        2.50%                     2.56%                       2.25%

$500,000 to $999,999        2.00%                     2.04%                       1.75%

$1,000,000 to $24,999,999   0.50%                     0.50%                       0.50%

$25,000,000 or more         None*                     None*                       *

</TABLE>

<TABLE>
<CAPTION>
<S>                   <C>                       <C>                         <C>
CLASS T

                      Sales Charge

                      As a % of offering price  As an approximate % of net  Investment  professional
                                                amount invested             concession as % of offering
                                                                            price

Up to $49,999          3.50%                     3.63%                       3.00%

$50,000 to $99,999     3.00%                     3.09%                       2.50%

$100,000 to $249,999   2.50%                     2.56%                       2.00%

$250,000 to $499,999   1.50%                     1.52%                       1.25%

$500,000 to $999,999   1.00%                     1.01%                       0.75%

$1,000,000 or more     None*                     None*                       *

</TABLE>

* SEE "FINDER'S FEE" SECTION ON PAGE 29.

Class A or Class T shares purchased by an individual or company
through the Combined Purchase, Rights of Accumulation or Letter of
Intent program may receive a reduced front-end sales charge according
to the sales charge schedules above. To qualify for a Class A or Class
T front-end sales charge reduction under one of these programs, you
must notify Fidelity in advance of your purchase. More detailed
information about these programs is contained in the statement of
additional information (SAI).

COMBINED PURCHASE. To receive a Class A or Class T front-end sales
charge reduction, if you are a new shareholder, you may combine your
purchase of Class A or Class T shares with purchases of: (i) Class A,
Class T, Class B, and Class C shares of any Fidelity Advisor fund and
(ii) Advisor B Class shares and Advisor C Class shares of Treasury
Fund.

RIGHTS OF ACCUMULATION. To receive a Class A or Class T front-end
sales charge reduction, if you are an existing shareholder, you may
add to your purchase of Class A or Class T shares the current value of
your holdings in: (i) Class A, Class T, Class B, and Class C shares of
any Fidelity Advisor fund, (ii) Advisor B Class shares and Advisor C
Class shares of Treasury Fund and (iii) Daily Money Class shares of
Treasury Fund, Prime Fund or Tax-Exempt Fund acquired by exchange from
any Fidelity Advisor fund.

LETTER OF INTENT. You may receive a Class A or Class T front-end sales
charge reduction on your purchases of Class A and Class T shares made
during a 13-month period by signing a Letter of Intent (Letter). Each
Class A or Class T purchase you make after you sign the Letter will be
entitled to the reduced front-end sales charge applicable to the total
investment indicated in the Letter. Purchases of the following may be
aggregated for the purpose of completing your Letter: (i) Class A and
Class T shares of any Fidelity Advisor fund (except those acquired by
exchange from Daily Money Class shares of Treasury Fund, Prime Fund or
Tax-Exempt Fund that had been previously exchanged from a Fidelity
Advisor fund), (ii) Class B and Class C shares of any Fidelity Advisor
fund and (iii) Advisor B Class shares and Advisor C Class shares of
Treasury Fund. Reinvested income and capital gain distributions will
not be considered purchases for the purpose of completing your Letter.

Class B shares may, upon redemption, be assessed a CDSC based on the
following schedule:

From Date of Purchase            Contingent Deferred Sales
                                 Charge

Less than 1 year                  5%

1 year to less than 2 years       4%

2 years to less than 3 years      3%

3 years to less than 4 years      3%

4 years to less than 5 years      2%

5 years to less than 6 years      1%

6 years to less than 7 years A    0%

A AFTER A MAXIMUM OF SEVEN YEARS, CLASS B SHARES WILL CONVERT
AUTOMATICALLY TO CLASS A SHARES OF THE SAME FIDELITY ADVISOR FUND.

When exchanging Class B shares of one fund for Class B shares of
another Fidelity Advisor fund or Advisor B Class shares of Treasury
Fund, your Class B shares retain the CDSC schedule in effect when they
were originally bought.

Except as provided below, investment professionals receive as
compensation from FDC, at the time of sale, a concession equal to
4.00% of your purchase of Class B shares. For purchases of Class B
shares through reinvested dividends or capital gain distributions,
investment professionals do not receive a concession at the time of
sale.

The CDSC for Class B shares will be calculated based on the lesser of
the cost of the Class B shares at the initial date of purchase or the
value of those Class B shares at redemption, not including any
reinvested dividends or capital gains. Class B shares acquired through
reinvestment of dividends or capital gain distributions will not be
subject to a CDSC. In determining the applicability and rate of any
CDSC at redemption, Class B shares representing reinvested dividends
and capital gains will be redeemed first, followed by those Class B
shares that have been held for the longest period of time.

A front-end sales charge will not apply to the following Class A
shares:

1. Purchased for an employee benefit plan (except a SIMPLE IRA, SEP,
or SARSEP plan or a plan covering self-employed individuals and their
employees (formerly Keogh/H.R. 10 plans)) or a 403(b) program with at
least $25 million or more in plan assets;

2. Purchased for an employee benefit plan (except a SIMPLE IRA, SEP,
or SARSEP plan or a plan covering self-employed individuals and their
employees (formerly Keogh/H.R. 10 plans)) or a 403(b) program
investing through an insurance company separate account used to fund
annuity contracts;

3. Purchased for an employee benefit plan (except a SIMPLE IRA, SEP,
or SARSEP plan or a plan covering self-employed individuals and their
employees (formerly Keogh/H.R. 10 plans)) or a 403(b) program
investing through a trust institution, bank trust department or
insurance company, or any such institution's broker-dealer affiliate
that is not part of an organization primarily engaged in the brokerage
business. Employee benefit plans (except SIMPLE IRA, SEP, and SARSEP
plans and plans covering self-employed individuals and their employees
(formerly Keogh/H.R. 10 plans)) and 403(b) programs that participate
in the Advisor Retirement Connection do not qualify for this waiver;

4. Purchased for an employee benefit plan (except a SIMPLE IRA, SEP,
or SARSEP plan or a plan covering self-employed individuals and their
employees (formerly Keogh/H.R. 10 plans)) or a 403(b) program
investing through an investment professional sponsored program that
requires the participating employee benefit plan to invest initially
in Class C or Class B shares and, upon meeting certain criteria,
subsequently requires the plan to invest in Class A shares;

5. Purchased by a trust institution or bank trust department for a
managed account that is charged an asset-based fee. Employee benefit
plans (except SIMPLE IRA, SEP, and SARSEP plans and plans covering
self-employed individuals and their employees (formerly Keogh/H.R. 10
plans)), 403(b) programs and accounts managed by third parties do not
qualify for this waiver;

6. Purchased by a broker-dealer for a managed account that is charged
an asset-based fee. Employee benefit plans (except SIMPLE IRA, SEP,
and SARSEP plans and plans covering self-employed individuals and
their employees (formerly Keogh/H.R. 10 plans)) and 403(b) programs do
not qualify for this waiver;

7. Purchased by a registered investment adviser that is not part of an
organization primarily engaged in the brokerage business for an
account that is managed on a discretionary basis and is charged an
asset-based fee. Employee benefit plans (except SIMPLE IRA, SEP, and
SARSEP plans and plans covering self-employed individuals and their
employees (formerly Keogh/H.R. 10 plans)) and 403(b) programs do not
qualify for this waiver;

8. Purchased with proceeds from the sale of front-end load shares of a
non-Advisor mutual fund for an account participating in the FundSelect
by Nationwide program;

9. Purchased by a bank trust officer, registered representative, or
other employee (or a member of one of their immediate families) of
investment professionals having agreements with FDC. A member of the
immediate family of a bank trust officer, a registered representative
or other employee of investment professionals having agreements with
FDC, is a spouse of one of those individuals, an account for which one
of those individuals is acting as custodian for a minor child, and a
trust account that is registered for the sole benefit of a minor child
of one of those individuals; or

10. Purchased by the Fidelity Investments Charitable Gift Fund.

A front-end sales charge will not apply to the following Class T
shares:

1. Purchased for an insurance company separate account used to fund
annuity contracts for employee benefit plans (except SIMPLE IRA, SEP,
and SARSEP plans and plans covering self-employed individuals and
their employees (formerly Keogh/H.R. 10 plans)) or 403(b) programs;

2. Purchased by a trust institution or bank trust department for a
managed account that is charged an asset-based fee. Accounts managed
by third parties do not qualify for this waiver;

3. Purchased by a broker-dealer for a managed account that is charged
an asset-based fee;

4. Purchased by a registered investment adviser that is not part of an
organization primarily engaged in the brokerage business for an
account that is managed on a discretionary basis and is charged an
asset-based fee;

5. Purchased for an employee benefit plan (except a SIMPLE IRA, SEP,
or SARSEP plan or a plan covering self -employed individuals and their
employees (formerly Keogh/H.R. 10 plans)) or a 403(b) program;

6. Purchased for a Fidelity or Fidelity Advisor account with the
proceeds of a distribution from (i) an insurance company separate
account used to fund annuity contracts for employee benefit plans,
403(b) programs or plans covering sole-proprietors (formerly
Keogh/H.R. 10 plans) that are invested in Fidelity Advisor or Fidelity
funds, or (ii) an employee benefit plan, 403(b) program or plan
covering a sole-proprietor (formerly Keogh/H.R. 10 plan) that is
invested in Fidelity Advisor or Fidelity funds. (Distributions other
than those transferred to an IRA account must be transferred directly
into a Fidelity account.);

7. Purchased for any state, county, or city, or any governmental
instrumentality, department, authority or agency;

8. Purchased with redemption proceeds from other mutual fund complexes
on which you have previously paid a front-end sales charge or CDSC;

9. Purchased by a current or former trustee or officer of a Fidelity
fund or a current or retired officer, director or regular employee of
FMR Corp. or Fidelity International Limited or their direct or
indirect subsidiaries (a Fidelity trustee or employee), the spouse of
a Fidelity trustee or employee, a Fidelity trustee or employee acting
as custodian for a minor child, or a person acting as trustee of a
trust for the sole benefit of the minor child of a Fidelity trustee or
employee;

10. Purchased by a charitable organization (as defined for purposes of
Section 501(c)(3) of the Internal Revenue Code, but excluding the
Fidelity Investments Charitable Gift Fund) investing $100,000 or more;

11. Purchased by a bank trust officer, registered representative, or
other employee (or a member of one of their immediate families) of
investment professionals having agreements with FDC. A member of the
immediate family of a bank trust officer, a registered representative
or other employee of investment professionals having agreements with
FDC, is a spouse of one of those individuals, an account for which one
of those individuals is acting as custodian for a minor child, and a
trust account that is registered for the sole benefit of a minor child
of one of those individuals;

12. Purchased for a charitable remainder trust or life income pool
established for the benefit of a charitable organization (as defined
for purposes of Section 501(c)(3) of the Internal Revenue Code);

13. Purchased with distributions of income, principal, and capital
gains from Fidelity Defined Trusts; or

14. Purchased by the Fidelity Investments Charitable Gift Fund.

The Class B CDSC will not apply to the redemption of shares:

1. For disability or death, provided that the shares are sold within
one year following the death or the initial determination of
disability;

2. That are permitted without penalty at age 701/2 pursuant to the
Internal Revenue Code from retirement plans or accounts (other than of
shares purchased on or after February 11, 1999 for Traditional IRAs,
Roth IRAs and Rollover IRAs);

3. For disability, payment of death benefits, or minimum required
distributions starting at age 701/2 from Traditional IRAs, Roth IRAs
and Rollover IRAs purchased on or after February 11, 1999; or

4. Through the Fidelity Advisor Systematic Withdrawal Program.

To qualify for a Class A or Class T front-end sales charge reduction
or waiver, you must notify Fidelity in advance of your purchase.

To qualify for a Class B CDSC waiver, you must notify Fidelity in
advance of your redemption.

FINDER'S FEE. On eligible purchases of (i) Class A shares in amounts
of $1 million or more that qualify for a Class A load waiver, (ii)
Class A shares in amounts of $25 million or more, and (iii) Class T
shares in amounts of $1 million or more, investment professionals will
be compensated with a fee at the rate of 0.25% of the purchase amount.

Shares held by an insurance company separate account will be
aggregated at the client (e.g., the contract holder or plan sponsor)
level, not at the separate account level. Upon request, anyone
claiming eligibility for the 0.25% fee with respect to shares held by
an insurance company separate account must provide Fidelity access to
records detailing purchases at the client level.

Except as provided below, any assets on which a finder's fee has been
paid will bear a contingent deferred sales charge (Class A or Class T
CDSC) if they do not remain in Class A or Class T shares of the
Fidelity Advisor funds, or Daily Money Class shares of Treasury Fund,
Prime Fund or Tax-Exempt Fund, for a period of at least one
uninterrupted year. The Class A or Class T CDSC will be 0.25% of the
lesser of the cost of the Class A or Class T shares, as applicable, at
the initial date of purchase or the value of those Class A or Class T
shares, as applicable, at redemption, not including any reinvested
dividends or capital gains. Class A and Class T shares acquired
through reinvestment of dividends or capital gain distributions will
not be subject to a Class A or Class T CDSC. In determining the
applicability and rate of any Class A or Class T CDSC at redemption,
Class A or Class T shares representing reinvested dividends and
capital gains will be redeemed first, followed by those Class A or
Class T CDSC shares that have been held for the longest period of
time.

The Class A or Class T CDSC will not apply to the redemption of
shares:

1. Held by insurance company separate accounts;

2. For plan loans or distributions or exchanges to non-Advisor fund
investment options from employee benefit plans (except shares of
SIMPLE IRA, SEP, and SARSEP plans and plans covering self-employed
individuals and their employees (formerly Keogh/H.R. 10 plans)
purchased on or after February 11, 1999) and 403(b) programs; or

3. For disability, payment of death benefits, or minimum required
distributions starting at age 701/2 from Traditional IRAs, Roth IRAs,
SIMPLE IRAs, SEPs, SARSEPs and plans covering a sole-proprietor or
self-employed individuals and their employees (formerly Keogh/H.R. 10
plans).

To qualify for a Class A or Class T finder's fee or CDSC waiver, you
must notify Fidelity in advance of your purchase or redemption,
respectively.

REINSTATEMENT PRIVILEGE. If you have sold all or part of your Class A,
Class T, or Class B shares of the fund, you may reinvest an amount
equal to all or a portion of the redemption proceeds in the same class
of the fund or another Fidelity Advisor fund, at the NAV next
determined after receipt in proper form of your investment order,
provided that such reinvestment is made within 90 days of redemption.
Under these circumstances, the dollar amount of the CDSC you paid, if
any, on shares will be reimbursed to you by reinvesting that amount in
Class A, Class T, or Class B shares, as applicable. You must reinstate
your Class A, Class T, or Class B shares into an account with the same
registration. This privilege may be exercised only once by a
shareholder with respect to the fund and certain restrictions may
apply. For purposes of the CDSC schedule, the holding period will
continue as if the Class A, Class T, or Class B shares had not been
redeemed.

To qualify for the reinstatement privilege, you must notify Fidelity
in writing in advance of your reinvestment.

CONVERSION FEATURE. After a maximum of seven years from the initial
date of purchase, Class B shares and any capital appreciation
associated with those shares, convert automatically to Class A shares
of the same Fidelity Advisor fund. Conversion to Class A shares will
be made at NAV. At the time of conversion, a portion of the Class B
shares bought through the reinvestment of dividends or capital gains
(Dividend Shares) will also convert to Class A shares. The portion of
Dividend Shares that will convert is determined by the ratio of your
converting Class B non-Dividend Shares to your total Class B
non-Dividend Shares.

Class A of the fund has adopted a Distribution and Service Plan
pursuant to Rule 12b-1 under the Investment Company Act of 1940. Under
the plan, Class A of the fund is authorized to pay FDC a monthly 12b-1
fee as compensation for providing services intended to result in the
sale of Class A shares and/or shareholder support services. Class A of
the fund may pay FDC a 12b-1 fee at an annual rate of 0.40% of its
average net assets, or such lesser amount as the Trustees may
determine from time to time. Class A of the fund currently pays FDC a
monthly 12b-1 fee at an annual rate of 0.15% of its average net assets
throughout the month. Class A's 12b-1 fee rate for Advisor Mortgage
Securities may be increased only when the Trustees believe that it is
in the best interests of Class A shareholders to do so.

Class T of the fund has adopted a Distribution and Service Plan
pursuant to Rule 12b-1 under the Investment Company Act of 1940. Under
the plan, Class T of the fund is authorized to pay FDC a monthly 12b-1
fee as compensation for providing services intended to result in the
sale of Class T shares and/or shareholder support services. Class T of
the fund may pay FDC a 12b-1 fee at an annual rate of 0.40% of its
average net assets, or such lesser amount as the Trustees may
determine from time to time. Class T of the fund currently pays FDC a
monthly 12b-1 fee at an annual rate of 0.25% of its average net assets
throughout the month. Class T's 12b-1 fee rate for Advisor Mortgage
Securities may be increased only when the Trustees believe that it is
in the best interests of Class T shareholders to do so.

FDC may reallow to intermediaries (such as banks, broker-dealers and
other service-providers), including its affiliates, up to the full
amount of the Class A and Class T 12b-1 fee, for providing services
intended to result in the sale of Class A or Class T shares and/or
shareholder support services.

Class B of the fund has adopted a Distribution and Service Plan
pursuant to Rule 12b-1 under the Investment Company Act of 1940. Under
the plan, Class B of the fund is authorized to pay FDC a monthly 12b-1
(distribution) fee as compensation for providing services intended to
result in the sale of Class B shares. Class B of the fund may pay FDC
a 12b-1 (distribution) fee at an annual rate of 0.75% of its average
net assets, or such lesser amount as the Trustees may determine from
time to time. Class B of the fund currently pays FDC a monthly 12b-1
(distribution) fee at an annual rate of 0.65% of its average net
assets throughout the month. Class B's 12b-1 (distribution) fee rate
for Advisor Mortgage Securities may be increased only when the
Trustees believe that it is in the best interests of Class B
shareholders to do so.

In addition, pursuant to the Class B plan, Class B pays FDC a monthly
12b-1 (service) fee at an annual rate of 0.25% of Class B's average
net assets throughout the month for providing shareholder support
services.

FDC may reallow up to the full amount of the Class B 12b-1 (service)
fee to intermediaries (such as banks, broker-dealers and other
service-providers) for providing shareholder support services.

Because 12b-1 fees are paid out of each class's assets on an ongoing
basis, they will increase the cost of your investment and may cost you
more than paying other types of sales charges.

In addition, each plan specifically recognizes that FMR may make
payments from its management fee revenue, past profits, or other
resources to FDC for expenses incurred in connection with providing
services intended to result in the sale of the applicable class's
shares and/or shareholder support services, including payments made to
intermediaries that provide those services. Currently, the Board of
Trustees of the fund has authorized such payments for Class A, Class
T, and Class B.

To receive sales concessions, finder's fees and payments made pursuant
to a Distribution and Service Plan, intermediaries must sign the
appropriate agreement with FDC in advance.

FMR may allocate brokerage transactions in a manner that takes into
account the sale of shares of the Fidelity Advisor funds, provided
that the fund receives brokerage services and commission rates
comparable to those of other broker-dealers.

No dealer, sales representative, or any other person has been
authorized to give any information or to make any representations,
other than those contained in this prospectus and in the related
statement of additional information (SAI), in connection with the
offer contained in this prospectus. If given or made, such other
information or representations must not be relied upon as having been
authorized by the fund or FDC. This prospectus and the related SAI do
not constitute an offer by the fund or by FDC to sell shares of the
fund to or to buy shares of the fund from any person to whom it is
unlawful to make such offer.

APPENDIX


FINANCIAL HIGHLIGHTS

The financial highlights tables are intended to help you understand
each class's financial history for the period of the class's
operations. Certain information reflects financial results for a
single class share. The total returns in the table represent the rate
that an  investor would have earned (or lost) on an investment in the
class (assuming reinvestment of all dividends and distributions). This
information has been audited by    PricewaterhouseCoopers LLP    ,
independent accountants, whose report, along with the fund's financial
highlights and financial statements, are included in the fund's annual
report. A free copy of the annual report is available upon request.

   ADVISOR MORTGAGE SECURITIES FUND - CLASS A

Years ended October 31,          1999      1998      1997 G      1997 F

SELECTED PER-SHARE DATA

Net asset value, beginning of    $ 10.960  $ 11.020  $ 11.050    $ 10.830
period

Income from Investment
Operations

Net investment income D           .646      .669      .170        .268

Net realized and unrealized       (.336)    (.061)    .048        .224
gain (loss)

Total from investment             .310      .608      .218        .492
operations

Less Distributions

From net investment income        (.640)    (.638)    (.168)      (.272)

From net realized gain            (.150)    (.030)    (.080)      -

Total distributions               (.790)    (.668)    (.248)      (.272)

Net asset value, end of period   $ 10.480  $ 10.960  $ 11.020    $ 11.050

TOTAL RETURN B, C                 2.93%     5.65%     2.00%       4.61%

RATIOS AND SUPPLEMENTAL DATA

Net assets, end of period        $ 3,090   $ 1,865   $ 1,648     $ 1,586
(000 omitted)

Ratio of expenses to average      .90% E    .90% E    .90% A, E   .90% A, E
net assets

Ratio of net investment           6.09%     6.01%     6.18% A     6.09% A
income to average  net assets

Portfolio turnover rate           183%      262%      125% A      149%


   A ANNUALIZED
   B THE TOTAL RETURNS WOULD HAVE BEEN LOWER HAD CERTAIN EXPENSES NOT
BEEN REDUCED DURING THE PERIODS SHOWN.
   C TOTAL RETURNS DO NOT INCLUDE THE ONE TIME SALES CHARGE AND FOR
PERIODS OF LESS THAN ONE YEAR ARE NOT ANNUALIZED.
   D NET INVESTMENT INCOME PER SHARE HAS BEEN CALCULATED BASED ON
AVERAGE SHARES OUTSTANDING DURING THE PERIOD.
   E FMR AGREED TO REIMBURSE A PORTION OF THE CLASS' EXPENSES DURING
THE PERIOD. WITHOUT THIS REIMBURSEMENT, THE CLASS' EXPENSE RATIO WOULD
HAVE BEEN HIGHER.
   F FOR THE PERIOD MARCH 3, 1997 (COMMENCEMENT OF SALE OF CLASS A
SHARES) TO JULY 31, 1997
   G THREE MONTHS ENDED OCTOBER 31

<TABLE>
<CAPTION>
<S>                              <C>       <C>       <C>          <C>
   ADVISOR MORTGAGE SECURITIES FUND - CLASS T


Years ended October 31,          1999      1998      1997 G       1997 F

SELECTED PER-SHARE DATA

Net asset value, beginning of    $ 10.960  $ 11.020  $ 11.050     $ 10.830
period

Income from Investment
Operations

Net investment income D           .637      .665      .167         .255

Net realized and unrealized       (.338)    (.063)    .048         .233
gain (loss)

Total from investment             .299      .602      .215         .488
operations

Less Distributions

From net investment income        (.629)    (.632)    (.165)       (.268)

From net realized gain            (.150)    (.030)    (.080)       -

Total distributions               (.779)    (.662)    (.245)       (.268)

Net asset value, end of period   $ 10.480  $ 10.960  $ 11.020     $ 11.050

TOTAL RETURN B, C                 2.82%     5.60%     1.98%        4.57%

RATIOS AND SUPPLEMENTAL DATA

Net assets, end of period        $ 29,052  $ 19,103  $ 14,649     $ 12,193
(000 omitted)

Ratio of expenses to average      1.00% E   1.00% E   1.00% A, E   1.00% A, E
net assets

Ratio of net investment           5.99%     6.05%     6.10% A      5.99% A
income to average net assets

Portfolio turnover rate           183%      262%      125% A       149%


</TABLE>

   A ANNUALIZED
   B TOTAL RETURNS DO NOT INCLUDE THE ONE TIME SALES CHARGE AND FOR
PERIODS OF LESS THAN ONE YEAR ARE NOT ANNUALIZED.
   C THE TOTAL RETURNS WOULD HAVE BEEN LOWER HAD CERTAIN EXPENSES NOT
BEEN REDUCED DURING THE PERIODS SHOWN.
   D NET INVESTMENT INCOME PER SHARE HAS BEEN CALCULATED BASED ON
AVERAGE SHARES OUTSTANDING DURING THE PERIOD.
   E FMR AGREED TO REIMBURSE A PORTION OF THE CLASS' EXPENSES DURING
THE PERIOD. WITHOUT THIS REIMBURSEMENT, THE CLASS' EXPENSE RATIO WOULD
HAVE BEEN HIGHER.
   F FOR THE PERIOD MARCH 3, 1997 (COMMENCEMENT OF SALE OF CLASS T
SHARES) TO JULY 31, 1997
   G THREE MONTHS ENDED OCTOBER 31

<TABLE>
<CAPTION>
<S>                              <C>       <C>       <C>          <C>
   ADVISOR MORTGAGE SECURITIES FUND - CLASS B


Years ended October 31,          1999      1998      1997 G       1997 F

SELECTED PER-SHARE DATA

Net asset value, beginning of    $ 10.950  $ 11.020  $ 11.040     $ 10.830
period

Income from Investment
Operations

Net investment income D           .567      .584      .142         .234

Net realized and unrealized       (.324)    (.064)    .065         .214
gain (loss)

Total from investment             .243      .520      .207         .448
operations

Less Distributions

From net investment income        (.563)    (.560)    (.147)       (.238)

From net realized gain            (.150)    (.030)    (.080)       -

Total distributions               (.713)    (.590)    (.227)       (.238)

Net asset value, end of period   $ 10.480  $ 10.950  $ 11.020     $ 11.040

TOTAL RETURN B, C                 2.29%     4.82%     1.90%        4.20%

RATIOS AND SUPPLEMENTAL DATA

Net assets, end of period        $ 19,101  $ 7,840   $ 1,587      $ 823
(000 omitted)

Ratio of expenses to average      1.62%     1.65% E   1.65% A, E   1.65% A, E
net assets

Ratio of net investment           5.37%     5.37%     5.32% A      5.34% A
income to average  net assets

Portfolio turnover rate           183%      262%      125% A       149%


</TABLE>

   A ANNUALIZED
   B THE TOTAL RETURNS WOULD HAVE BEEN LOWER HAD CERTAIN EXPENSES NOT
BEEN REDUCED DURING THE PERIODS SHOWN.
   C TOTAL RETURNS DO NOT INCLUDE THE CONTINGENT DEFERRED SALES CHARGE
AND FOR PERIODS OF LESS THAN ONE YEAR ARE NOT ANNUALIZED.
   D NET INVESTMENT INCOME PER SHARE HAS BEEN CALCULATED BASED ON
AVERAGE SHARES OUTSTANDING DURING THE PERIOD.
   E FMR AGREED TO REIMBURSE A PORTION OF THE CLASS' EXPENSES DURING
THE PERIOD. WITHOUT THIS REIMBURSEMENT, THE CLASS' EXPENSE RATIO WOULD
HAVE BEEN HIGHER.
   F FOR THE PERIOD MARCH 3, 1997 (COMMENCEMENT OF SALE OF CLASS B
SHARES) TO JULY 31, 1997
   G THREE MONTHS ENDED OCTOBER 31






You can obtain additional information about the fund. The fund's SAI
includes more detailed information about the fund and its investments.
The SAI is incorporated herein by reference (legally forms a part of
the prospectus). The fund's annual and semi-annual reports include a
discussion of the fund's holdings and recent market conditions and the
fund's investment strategies that affected performance.

For a free copy of any of these documents or to request other
information or ask questions about the fund, call Fidelity at
1-888-622-3175.

The SAI, the fund's annual and semi-annual reports and other related
materials are available on the SEC's Internet Web site
(http://www.sec.gov). You can obtain copies of this information upon
paying a duplicating fee, by writing the Public Reference Section of
the SEC, Washington, D.C. 20549-6009. You can also review and copy
information about the fund, including the fund's SAI, at the SEC's
Public Reference Room in Washington, D.C. Call 1-800-SEC-0330 for
information on the operation of the SEC's Public Reference Room.

INVESTMENT COMPANY ACT OF 1940, FILE NUMBERS, 811-4707.

Fidelity Investments & (Pyramid) Design, Fidelity, Fidelity
Investments, and Directed Dividends are registered trademarks of FMR
Corp.

The third party marks appearing above are the marks of their
respective owners.

1.   729826    .101                                  AMOR-pro-1299-01

Like securities of all mutual
funds, these securities have
not been approved or
disapproved by the
Securities and Exchange
Commission, and the
Securities and Exchange
Commission has not
determined if this
prospectus is accurate or
complete. Any
representation to the
contrary is a criminal
offense.

FIDELITY(registered trademark) ADVISOR
MORTGAGE SECURITIES
FUND

   INSTITUTIONAL CLASS
(Fund 240, CUSIP 316   1    7K709)

PROSPECTUS
       DECEMBER 29, 1999
   REVISED FEBRUARY 3, 2000

(FIDELITY_LOGO_GRAPHIC)(registered trademark)
82 DEVONSHIRE STREET, BOSTON, MA 02109

CONTENTS


FUND SUMMARY             2   INVESTMENT SUMMARY

                         2   PERFORMANCE

                         4   FEE TABLE

FUND BASICS              4   INVESTMENT DETAILS

                         5   VALUING SHARES

SHAREHOLDER INFORMATION  5   BUYING AND SELLING SHARES

                         13  EXCHANGING SHARES

                         13  ACCOUNT FEATURES AND POLICIES

                         15  DIVIDENDS AND CAPITAL GAIN
                             DISTRIBUTIONS

                         15  TAX CONSEQUENCES

FUND SERVICES            15  FUND MANAGEMENT

                         16  FUND DISTRIBUTION

APPENDIX                 16  FINANCIAL HIGHLIGHTS

FUND SUMMARY


INVESTMENT SUMMARY

INVESTMENT OBJECTIVE

ADVISOR MORTGAGE SECURITIES FUND seeks a high level of current income,
consistent with prudent investment risk. In seeking current income,
the fund may also consider the potential for capital gain.

PRINCIPAL INVESTMENT STRATEGIES

Fidelity Management & Research Company (FMR)'s principal investment
strategies include:

(small solid bullet) Normally investing at least 65% of total assets
in investment-grade mortgage-related securities (those of medium and
high quality).

(small solid bullet) Investing in U.S. Government securities and
instruments related to U.S. Government securities.

(small solid bullet) Managing the fund to have similar overall
interest rate risk to the Lehman Brothers Mortgage-Backed Securities
Index.

(small solid bullet) Allocating assets across different market sectors
and maturities.

(small solid bullet) Analyzing a security's structural features and
current pricing, trading opportunities, and the credit quality of its
issuer to select investments.

PRINCIPAL INVESTMENT RISKS

The fund is subject to the following principal investment risks:

(small solid bullet) INTEREST RATE CHANGES. Interest rate increases
can cause the price of a debt security to decrease.

(small solid bullet) PREPAYMENT. The ability of an issuer of a debt
security to repay principal prior to a security's maturity can cause
greater price volatility if interest rates change.

(small solid bullet) ISSUER-SPECIFIC CHANGES. The value of an
individual security or particular type of security can be more
volatile than the market as a whole and can perform differently from
the value of the market as a whole.

An investment in the fund is not a deposit of a bank and is not
insured or guaranteed by the Federal Deposit Insurance Corporation or
any other government agency.

When you sell your shares of the fund, they could be worth more or
less than what you paid for them.

PERFORMANCE

The following information illustrates the fund's performance over the
past year and compares Institutional Class's performance to the
performance of a market index and an average of the performance of
similar funds over various periods of time. Returns are based on past
results and are not an indication of future performance.

<TABLE>
<CAPTION>
<S>                            <C>  <C>  <C>  <C>  <C>  <C>  <C>  <C>  <C>  <C>
YEAR-BY-YEAR RETURNS

ADVISOR MORTGAGE SECURITIES -
INSTITUTIONAL CLASS

Calendar Years                                                     1998

                                                                   5.73%

</TABLE>


Percentage (%)
Row: 1, Col: 1, Value: nil
Row: 2, Col: 1, Value: nil
Row: 3, Col: 1, Value: nil
Row: 4, Col: 1, Value: nil
Row: 5, Col: 1, Value: nil
Row: 6, Col: 1, Value: nil
Row: 7, Col: 1, Value: nil
Row: 8, Col: 1, Value: nil
Row: 9, Col: 1, Value: nil
Row: 10, Col: 1, Value: 5.73

DURING THE PERIOD SHOWN IN THE CHART FOR INSTITUTIONAL CLASS OF
ADVISOR MORTGAGE SECURITIES, THE HIGHEST RETURN FOR A QUARTER WAS
2.30% (QUARTER ENDING SEPTEMBER 30, 1998) AND THE LOWEST RETURN FOR A
QUARTER WAS 0.13% (QUARTER ENDING DECEMBER 31, 1998).

THE YEAR-TO-DATE RETURN AS OF SEPTEMBER 30, 1999 FOR INSTITUTIONAL
CLASS WAS 1.54%.

AVERAGE ANNUAL RETURNS

For the periods ended          Past 1 year  Life of fundA
December 31, 1998

Advisor Mortgage Securities -   5.73%        7.53%
Institutional Class

Lehman Brothers                 6.96%        8.41%
Mortgage-Backed Securities
Index

Lipper U.S. Mortgage Funds      6.08%        n/a
Average

A FROM MARCH 3, 1997.

If FMR had not reimbursed certain class expenses during these periods,
Institutional Class's returns would have been lower.

The Lehman Brothers Mortgage-Backed Securities Index is a market
value-weighted index of 15- and 30- year fixed-rate securities backed
by mortgage pools of the Government National Mortgage Association
(GNMA), Fannie Mae and the Federal Home Loan Mortgage Corporation
(FHLMC), and balloon mortgages with fixed-rate coupons.

The Lipper U.S. Mortgage Funds Average reflects the performance
(excluding sales charges) of mutual funds with similar objectives.

FEE TABLE

The following table describes the fees and expenses that are incurred
when you buy, hold, or sell Institutional Class shares of the fund.
The annual class operating expenses provided below for Institutional
Class do not reflect the effect of any expense reimbursements during
the period.

SHAREHOLDER FEES (PAID BY THE INVESTOR DIRECTLY)

                              Institutional Class

Sales charge (load) on        None
purchases and reinvested
distributions

Deferred sales charge (load)  None
on redemptions

ANNUAL CLASS OPERATING EXPENSES (PAID FROM CLASS ASSETS)

                              Institutional Class

Management fee                0.43%

Distribution and Service      None
(12b-1) fee

Other expenses                0.32%

Total annual class operating  0.75%
expensesA

A EFFECTIVE MARCH 1, 1997 FMR HAS VOLUNTARILY AGREED TO REIMBURSE
INSTITUTIONAL CLASS OF THE FUND TO THE EXTENT THAT TOTAL OPERATING
EXPENSES (EXCLUDING INTEREST, TAXES, SECURITIES LENDING COSTS,
BROKERAGE COMMISSIONS AND EXTRAORDINARY EXPENSES), AS A PERCENTAGE OF
ITS AVERAGE NET ASSETS, EXCEED 0.75%. THIS ARRANGEMENT CAN BE
DISCONTINUED BY FMR AT ANY TIME.

This EXAMPLE helps you compare the cost of investing in the fund with
the cost of investing in other mutual funds.

Let's say, hypothetically, that Institutional Class's annual return is
5% and that your shareholder fees and Institutional Class's annual
operating expenses are exactly as described in the fee table. This
example illustrates the effect of fees and expenses, but is not meant
to suggest actual or expected fees and expenses or returns, all of
which may vary. For every $10,000 you invested, here's how much you
would pay in total expenses if you close your account after the number
of years indicated:

          Institutional Class

1 year    $ 77

3 years   $ 240

5 years   $ 417

10 years  $ 930

FUND BASICS


INVESTMENT DETAILS

INVESTMENT OBJECTIVE

ADVISOR MORTGAGE SECURITIES FUND seeks a high level of current income,
consistent with prudent investment risk. In seeking current income,
the fund may also consider the potential for capital gain.

PRINCIPAL INVESTMENT STRATEGIES

FMR normally invests at least 65% of the fund's total assets in
investment-grade mortgage-related securities (those of medium and high
quality). FMR may also invest the fund's assets in U.S. Government
securities and instruments related to U.S. Government securities.

FMR uses the Lehman Brothers Mortgage-Backed Securities Index as a
guide in structuring the fund and selecting its investments. FMR
manages the fund to have similar overall interest rate risk to the
index. As of October 31, 1999, the dollar-weighted average maturity of
the fund and the index was approximately 8.0 and 7.5 years,
respectively. In determining a security's maturity for purposes of
calculating the fund's average maturity, an estimate of the average
time for its principal to be paid may be used. This can be
substantially shorter than its stated maturity.

FMR allocates the fund's assets among different market sectors (for
example, fixed-rate or adjustable rate mortgages) and different
maturities based on its view of the relative value of each sector or
maturity.

In buying and selling securities for the fund, FMR analyzes a
security's structural features and current price compared to its
estimated long-term value, any short-term trading opportunities
resulting from market inefficiencies, and the credit quality of its
issuer.

To earn additional income for the fund, FMR may use a trading strategy
that involves selling mortgage securities and simultaneously agreeing
to purchase similar securities on a later date at a set price. This
trading strategy may result in an increased portfolio turnover rate
which increases transaction costs and may increase taxable gains.

FMR may use various techniques, such as buying and selling futures
contracts, to increase or decrease the fund's exposure to changing
security prices, interest rates, or other factors that affect security
values. If FMR's strategies do not work as intended, the fund may not
achieve its objective.

DESCRIPTION OF PRINCIPAL SECURITY TYPES

DEBT SECURITIES are used by issuers to borrow money. The issuer
usually pays a fixed, variable, or floating rate of interest, and must
repay the amount borrowed at the maturity of the security. Some debt
securities, such as zero coupon bonds, do not pay current interest but
are sold at a discount from their face values.

U.S. GOVERNMENT SECURITIES are high-quality securities issued or
guaranteed by the U.S. Treasury or by an agency or instrumentality of
the U.S. Government. U.S. Government securities may be backed by the
full faith and credit of the U.S. Treasury, the right to borrow from
the U.S. Treasury, or the agency or instrumentality issuing or
guaranteeing the security.

MORTGAGE SECURITIES are interests in pools of mortgages. Payment of
principal or interest generally depends on the cash flows generated by
the underlying mortgages. Mortgage securities may be U.S. Government
securities or issued by a bank or other financial institution.

PRINCIPAL INVESTMENT RISKS

Many factors affect the fund's performance. The fund's yield and share
price change daily based on changes in interest rates and market
conditions and in response to other economic, political, or financial
developments. The fund's reaction to these developments will be
affected by the types and maturities of securities in which the fund
invests, the financial condition, industry and economic sector, and
geographic location of an issuer, and the fund's level of investment
in the securities of that issuer. When you sell your shares of the
fund, they could be worth more or less than what you paid for them.

The following factors can significantly affect the fund's performance:

INTEREST RATE CHANGES. Debt securities have varying levels of
sensitivity to changes in interest rates. In general, the price of a
debt security can fall when interest rates rise and can rise when
interest rates fall. Securities with longer maturities and mortgage
securities can be more sensitive to interest rate changes. In other
words, the longer the maturity of a security, the greater the impact a
change in interest rates could have on the security's price. In
addition, short-term and long-term interest rates do not necessarily
move in the same amount or the same direction. Short-term securities
tend to react to changes in short-term interest rates, and long-term
securities tend to react to changes in long-term interest rates.

PREPAYMENT. Many types of debt securities, including mortgage
securities, are subject to prepayment risk. Prepayment occurs when the
issuer of a security can repay principal prior to the security's
maturity. Securities subject to prepayment can offer less potential
for gains during a declining interest rate environment and similar or
greater potential for loss in a rising interest rate environment. In
addition, the potential impact of prepayment features on the price of
a debt security can be difficult to predict and result in greater
volatility.

ISSUER-SPECIFIC CHANGES. Changes in the financial condition of an
issuer, changes in specific economic or political conditions that
affect a particular type of security or issuer, and changes in general
economic or political conditions can affect the credit quality or
value of an issuer's securities. Lower-quality debt securities (those
of less than investment-grade quality) tend to be more sensitive to
these changes than higher-quality debt securities.

In response to market, economic, political, or other conditions, FMR
may temporarily use a different investment strategy for defensive
purposes. If FMR does so, different factors could affect the fund's
performance and the fund may not achieve its investment objective.

FUNDAMENTAL INVESTMENT POLICIES

The policies discussed below are fundamental, that is, subject to
change only by shareholder approval.

ADVISOR MORTGAGE SECURITIES FUND seeks a high level of current income,
consistent with prudent investment risk, by investing primarily in
mortgage-related securities. In seeking current income, the fund may
also consider the potential for capital gain.

VALUING SHARES

The fund is open for business each day the New York Stock Exchange
(NYSE) is open.

A class's net asset value per share (NAV) is the value of a single
share. Fidelity normally calculates Institutional Class's NAV as of
the close of business of the NYSE, normally 4:00 p.m. Eastern time.
However, NAV may be calculated earlier if trading on the NYSE is
restricted or as permitted by the Securities and Exchange Commission
(SEC). The fund's assets are valued as of this time for the purpose of
computing Institutional Class's NAV.

To the extent that the fund's assets are traded in other markets on
days when the NYSE is closed, the value of the fund's assets may be
affected on days when the fund is not open for business. In addition,
trading in some of the fund's assets may not occur on days when the
fund is open for business.

The fund's assets are valued primarily on the basis of information
furnished by a pricing service or market quotations. Certain
short-term securities are valued on the basis of amortized cost. If
market quotations or information furnished by a pricing service is not
readily available for a security or if a security's value has been
materially affected by events occurring after the close of the
exchange or market on which the security is principally traded, that
security may be valued by another method that the Board of Trustees
believes accurately reflects fair value. A security's valuation may
differ depending on the method used for determining value.

SHAREHOLDER INFORMATION


BUYING AND SELLING SHARES

GENERAL INFORMATION

For account, product and service information, please use the following
phone numbers:

(small solid bullet) If you are investing through a broker-dealer or
insurance representative, 1-800-522-7297 (8:30 a.m. - 7:00 p.m.
Eastern time, Monday through Friday).

(small solid bullet) If you are investing through a bank
representative, 1-800-843-3001 (8:30 a.m. - 7:00 p.m. Eastern time,
Monday through Friday).

Please use the following addresses:

BUYING OR SELLING SHARES

Fidelity Investments(registered trademark)
P.O. Box 770002
Cincinnati, OH 45277-0081

OVERNIGHT EXPRESS
Fidelity Investments
2300 Litton Lane - KH2A
Hebron, KY 41048

You may buy or sell Institutional Class shares of the fund through a
retirement account or an investment professional. When you invest
through a retirement account or an investment professional, the
procedures for buying, selling, and exchanging Institutional Class
shares of the fund and the account features and policies may differ.
Additional fees may also apply to your investment in Institutional
Class shares of the fund, including a transaction fee if you buy or
sell Institutional Class shares of the fund through a broker or other
investment professional.

Certain methods of contacting Fidelity, such as by telephone, may be
unavailable or delayed (for example, during periods of unusual market
activity).

The different ways to set up (register) your account with Fidelity are
listed in the following table.

WAYS TO SET UP YOUR ACCOUNT

INDIVIDUAL OR JOINT TENANT
FOR YOUR GENERAL INVESTMENT NEEDS

RETIREMENT
FOR TAX-ADVANTAGED RETIREMENT SAVINGS
(solid bullet) TRADITIONAL INDIVIDUAL RETIREMENT ACCOUNTS (IRAS)
(solid bullet) ROTH IRAS
(solid bullet) ROLLOVER IRAS
(solid bullet) 401(K) PLANS AND CERTAIN OTHER 401(A)-QUALIFIED PLANS
(solid bullet) KEOGH PLANS
(solid bullet) SIMPLE IRAS
(solid bullet) SIMPLIFIED EMPLOYEE PENSION PLANS
               (SEP-IRAS)
(solid bullet) SALARY REDUCTION SEP-IRAS (SARSEPS)

GIFTS OR TRANSFERS TO A MINOR (UGMA, UTMA)
TO INVEST FOR A CHILD'S EDUCATION OR OTHER FUTURE NEEDS

TRUST
FOR MONEY BEING INVESTED BY A TRUST
BUSINESS OR ORGANIZATION
FOR INVESTMENT NEEDS OF CORPORATIONS, ASSOCIATIONS, PARTNERSHIPS OR
OTHER GROUPS

BUYING SHARES

Institutional Class shares are offered to:

1. Broker-dealer managed account programs that (i) charge an
asset-based fee and (ii) will have at least $1 million invested in the
Institutional Class of the Advisor funds. In addition, employee
benefit plans (as defined in the Employee Retirement Income Security
Act), 403(b) programs and plans covering sole-proprietors (formerly
Keogh/H.R. 10 plans) must have at least $50 million in plan assets;

2. Registered investment adviser managed account programs, provided
the registered investment adviser is not part of an organization
primarily engaged in the brokerage business, and the program (i)
charges an asset-based fee and (ii) will have at least $1 million
invested in the Institutional Class of the Advisor funds. In addition,
accounts other than an employee benefit plan, 403(b) program or plan
covering a sole-proprietor (formerly a Keogh/H.R. 10 plan) in the
program must be managed on a discretionary basis;

3. Trust institution and bank trust department managed account
programs that (i) charge an asset-based fee and (ii) will have at
least $1 million invested in the Institutional Class of the Advisor
funds. Accounts managed by third parties are not eligible to purchase
Institutional Class shares;

4. Insurance company separate accounts that will have at least $1
million invested in the Institutional Class of the Advisor funds;

5. Fidelity Trustees and employees; and

6. Insurance company programs for employee benefit plans, 403(b)
programs or plans covering sole-proprietors (formerly Keogh/H.R. 10
plans) that (i) charge an asset-based fee and (ii) will have at least
$1 million invested in the Institutional Class of the Advisor funds.
Insurance company programs for employee benefit plans, 403(b) programs
and plans covering sole-proprietors (formerly Keogh/H.R. 10 plans)
include such programs offered by a broker-dealer affiliate of an
insurance company, provided that the affiliate is not part of an
organization primarily engaged in the brokerage business.

For purchases made by managed account programs, insurance company
separate accounts or insurance company programs for employee benefit
plans, 403(b) programs or plans covering sole-proprietors (formerly
Keogh/H.R. 10 plans), Fidelity may waive the requirement that $1
million be invested in the Institutional Class of the Advisor funds.

The price to buy one share of Institutional Class is the class's NAV.
Institutional Class shares are sold without a sales charge.

Your shares will be bought at the next NAV calculated after your order
is received in proper form.

It is the responsibility of your investment professional to transmit
your order to buy shares to Fidelity before the close of business on
the day you place your order.

Short-term or excessive trading into and out of the fund may harm
performance by disrupting portfolio management strategies and by
increasing expenses. Accordingly, the fund may reject any purchase
orders, including exchanges, particularly from market timers or
investors who, in FMR's opinion, have a pattern of short-term or
excessive trading or whose trading has been or may be disruptive to
the fund. For these purposes, FMR may consider an investor's trading
history in the fund or other Fidelity funds, and accounts under common
ownership or control.

The fund may stop offering shares completely or may offer shares only
on a limited basis, for a period of time or permanently.

When you place an order to buy shares, note the following:

(small solid bullet) All of your purchases must be made in U.S.
dollars and checks must be drawn on U.S. banks.

(small solid bullet) Fidelity does not accept cash.

(small solid bullet) When making a purchase with more than one check,
each check must have a value of at least $50.

(small solid bullet) Fidelity reserves the right to limit the number
of checks processed at one time.

(small solid bullet) Fidelity must receive payment within three
business days after an order for shares is placed; otherwise your
purchase order may be canceled and you could be liable for any losses
or fees the fund or Fidelity has incurred.

(small solid bullet) If your check does not clear, your purchase will
be canceled and you could be liable for any losses or fees the fund or
Fidelity has incurred.

Institutional Class shares can be bought or sold through investment
professionals using an automated order placement and settlement system
that guarantees payment for orders on a specified date.

Certain financial institutions that meet creditworthiness criteria
established by Fidelity Distributors Corporation (FDC) may enter
confirmed purchase orders on behalf of customers by phone, with
payment to follow no later than close of business on the next business
day. If payment is not received by that time, the order will be
canceled and the financial institution will be liable for any losses.

MINIMUMS

TO OPEN AN ACCOUNT                          $2,500

For certain Fidelity Advisor retirement
accountsA                                   $500

Through regular investment plansB           $100

TO ADD TO AN ACCOUNT                        $100

MINIMUM BALANCE                             $1,000

For certain Fidelity Advisor retirement
accountsA                                   None

A FIDELITY ADVISOR TRADITIONAL IRA, ROTH IRA, ROLLOVER IRA, SEP-IRA,
AND KEOGH ACCOUNTS.

B AN ACCOUNT MAY BE OPENED WITH A MINIMUM OF $100, PROVIDED THAT A
REGULAR INVESTMENT PLAN IS ESTABLISHED AT THE TIME THE ACCOUNT IS
OPENED.

There is no minimum account balance or initial or subsequent purchase
minimum for certain Fidelity retirement accounts funded through salary
deduction, or accounts opened with the proceeds of distributions from
such retirement accounts. In addition, the fund may waive or lower
purchase minimums in other circumstances.

KEY INFORMATION

PHONE                        TO OPEN AN ACCOUNT
                             (small solid bullet) Exchange
                             from the same class of
                             another Fidelity Advisor
                             fund or from another
                             Fidelity fund. Call your
                             investment professional or
                             call Fidelity at the
                             appropriate number found in
                             "General Information."

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Exchange
                             from the same class of
                             another Fidelity Advisor
                             fund or from another
                             Fidelity fund. Call your
                             investment professional or
                             call Fidelity at the
                             appropriate number found in
                             "General Information."

MAIL FIDELITY INVESTMENTS    TO OPEN AN ACCOUNT
P.O. BOX 770002 CINCINNATI,  (small solid bullet) Complete
OH 45277-0081                and sign the application.
                             Make your check payable to
                             the complete name of the
                             fund and note the applicable
                             class. Mail to your
                             investment professional or
                             to the address at left.

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Make
                             your check payable to the
                             complete name of the fund
                             and note the applicable
                             class. Indicate your fund
                             account number on your check
                             and mail to your investment
                             professional or to the
                             address at left.
                             (small solid bullet) Exchange
                             from the same class of other
                             Fidelity Advisor funds or
                             from another Fidelity fund.
                             Send a letter of instruction
                             to your investment
                             professional or to the
                             address at left, including
                             your name, the funds' names,
                             the applicable class names,
                             the fund account numbers,
                             and the dollar amount or
                             number of shares to be
                             exchanged.

IN PERSON                    TO OPEN AN ACCOUNT
                             (small solid bullet) Bring
                             your application and check
                             to your investment
                             professional.

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Bring
                             your check to your
                             investment professional.

WIRE                         TO OPEN AN ACCOUNT
                             (small solid bullet) Call
                             your investment professional
                             or call Fidelity at the
                             appropriate number found in
                             "General Information" to set
                             up your account and to
                             arrange a wire transaction.
                             (small solid bullet) Wire to:
                             Bankers Trust Company, Bank
                             Routing # 021001033, Account
                             # 00159759.
                             (small solid bullet) Specify
                             the complete name of the
                             fund, note the applicable
                             class, and include your new
                             fund account number and your
                             name.

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Wire to:
                             Bankers Trust Company, Bank
                             Routing # 021001033, Account
                             # 00159759.
                             (small solid bullet) Specify
                             the complete name of the
                             fund, note the applicable
                             class, and include your fund
                             account number and your name.

AUTOMATICALLY                TO OPEN AN ACCOUNT
                             (small solid bullet) Not
                             available.

                             TO ADD TO AN ACCOUNT
                             (small solid bullet) Use
                             Fidelity Advisor Systematic
                             Investment Program.

SELLING SHARES

The price to sell one share of Institutional Class is the class's NAV.

If appropriate to protect shareholders, the fund may impose a
redemption fee (trading fee) on redemptions from the fund.

Your shares will be sold at the next NAV calculated after your order
is received in proper form.

It is the responsibility of your investment professional to transmit
your order to sell shares to Fidelity before the close of business on
the day you place your order.

Certain requests must include a signature guarantee. It is designed to
protect you and Fidelity from fraud. Your request must be made in
writing and include a signature guarantee if any of the following
situations apply:

(small solid bullet) You wish to sell more than $100,000 worth of
shares;

(small solid bullet) Your account registration has changed within the
last 15 or 30 days, depending on your account;

(small solid bullet) The check is being mailed to a different address
than the one on your account (record address);

(small solid bullet) The check is being made payable to someone other
than the account owner; or

(small solid bullet) The redemption proceeds are being transferred to
a Fidelity account with a different registration.

You should be able to obtain a signature guarantee from a bank,
broker, dealer, credit union (if authorized under state law),
securities exchange or association, clearing agency, or savings
association. A notary public cannot provide a signature guarantee.

When you place an order to sell shares, note the following:

(small solid bullet) If you are selling some but not all of your
shares, leave at least $1,000 worth of shares in the account to keep
it open, except accounts not subject to account minimums.

(small solid bullet) Normally, Fidelity will process redemptions by
the next business day, but Fidelity may take up to seven days to
process redemptions if making immediate payment would adversely affect
the fund.

(small solid bullet) Redemption proceeds (other than exchanges) may be
delayed until money from prior purchases sufficient to cover your
redemption has been received and collected. This can take up to seven
business days after a purchase.

(small solid bullet) Redemptions may be suspended or payment dates
postponed when the NYSE is closed (other than weekends or holidays),
when trading on the NYSE is restricted, or as permitted by the SEC.

(small solid bullet) Redemption proceeds may be paid in securities or
other property rather than in cash if FMR determines it is in the best
interests of the fund.

(small solid bullet) You will not receive interest on amounts
represented by uncashed redemption checks.

(small solid bullet) Unless otherwise instructed, Fidelity will send a
check to the record address.

To sell shares issued with certificates, call Fidelity for
instructions. The fund no longer issues share certificates.

KEY INFORMATION

PHONE                        (small solid bullet) Call
                             your investment professional
                             or call Fidelity at the
                             appropriate number found in
                             "General Information" to
                             initiate a wire transaction
                             or to request a check for
                             your redemption.

                             (small solid bullet) Exchange
                             to the same class of other
                             Fidelity Advisor funds or to
                             another Fidelity fund. Call
                             your investment professional
                             or call Fidelity at the
                             appropriate number found in
                             "General Information."

MAIL FIDELITY INVESTMENTS    INDIVIDUAL, JOINT TENANT,
P.O. BOX 770002 CINCINNATI,  SOLE PROPRIETORSHIP, UGMA,
OH 45277-0081                UTMA
                             (small solid bullet) Send a
                             letter of instruction to
                             your investment professional
                             or to the address at left,
                             including your name, the
                             fund's name, the applicable
                             class name, your fund
                             account number, and the
                             dollar amount or number of
                             shares to be sold. The
                             letter of instruction must
                             be signed by all persons
                             required to sign for
                             transactions, exactly as
                             their names appear on the
                             account.

                             RETIREMENT ACCOUNT
                             (small solid bullet) The
                             account owner should
                             complete a retirement
                             distribution form. Call your
                             investment professional or
                             call Fidelity at the
                             appropriate number found in
                             "General Information" to
                             request one.

                             TRUST
                             (small solid bullet) Send a
                             letter of instruction to
                             your investment professional
                             or to the address at left,
                             including the trust's name,
                             the fund's name, the
                             applicable class name, the
                             trust's fund account number,
                             and the dollar amount or
                             number of shares to be sold.
                             The trustee must sign the
                             letter of instruction
                             indicating capacity as
                             trustee. If the trustee's
                             name is not in the account
                             registration, provide a copy
                             of the trust document
                             certified within the last 60
                             days.

                             BUSINESS OR ORGANIZATION
                             (small solid bullet) Send a
                             letter of instruction to
                             your investment professional
                             or to the address at left,
                             including the firm's name,
                             the fund's name, the
                             applicable class name, the
                             firm's fund account number,
                             and the dollar amount or
                             number of shares to be sold.
                             At least one person
                             authorized by corporate
                             resolution to act on the
                             account must sign the letter
                             of instruction.

                             (small solid bullet) Include
                             a corporate resolution with
                             corporate seal or a
                             signature guarantee.

                             EXECUTOR, ADMINISTRATOR,
                             CONSERVATOR, GUARDIAN
                             (small solid bullet) Call
                             your investment professional
                             or call Fidelity at the
                             appropriate number found in
                             "General Information" for
                             instructions.

IN PERSON                    INDIVIDUAL, JOINT TENANT,
                             SOLE PROPRIETORSHIP, UGMA,
                             UTMA
                             (small solid bullet) Bring a
                             letter of instruction to
                             your investment
                             professional. The letter of
                             instruction must be signed
                             by all persons required to
                             sign for transactions,
                             exactly as their names
                             appear on the account.

                             RETIREMENT ACCOUNT
                             (small solid bullet) The
                             account owner should
                             complete a retirement
                             distribution form. Visit
                             your investment professional
                             to request one.

                             TRUST
                             (small solid bullet) Bring a
                             letter of instruction to
                             your investment
                             professional. The trustee
                             must sign the letter of
                             instruction indicating
                             capacity as trustee. If the
                             trustee's name is not in the
                             account registration,
                             provide a copy of the trust
                             document certified within
                             the last 60 days.

                             BUSINESS OR ORGANIZATION
                             (small solid bullet) Bring a
                             letter of instruction to
                             your investment
                             professional. At least one
                             person authorized by
                             corporate resolution to act
                             on the account must sign the
                             letter of instruction.

                             (small solid bullet) Include
                             a corporate resolution with
                             corporate seal or a
                             signature guarantee.

                             EXECUTOR, ADMINISTRATOR,
                             CONSERVATOR, GUARDIAN
                             (small solid bullet) Visit
                             your investment professional
                             for instructions.

AUTOMATICALLY                (small solid bullet) Use
                             Fidelity Advisor Systematic
                             Withdrawal Program to set up
                             periodic redemptions from
                             your Institutional Class
                             account.

EXCHANGING SHARES

An exchange involves the redemption of all or a portion of the shares
of one fund and the purchase of shares of another fund.

As an Institutional Class shareholder, you have the privilege of
exchanging your Institutional Class shares for Institutional Class
shares of other Fidelity Advisor funds or for shares of Fidelity
funds.

However, you should note the following policies and restrictions
governing exchanges:

(small solid bullet) The fund or class you are exchanging into must be
available for sale in your state.

(small solid bullet) You may exchange only between accounts that are
registered in the same name, address, and taxpayer identification
number.

(small solid bullet) Before exchanging into a fund or class, read its
prospectus.

(small solid bullet) Exchanges may have tax consequences for you.

(small solid bullet) The fund may temporarily or permanently terminate
the exchange privilege of any investor who makes more than four
exchanges out of the fund per calendar year. Accounts under common
ownership or control will be counted together for purposes of the four
exchange limit.

(small solid bullet) The exchange limit may be modified for accounts
held by certain institutional retirement plans to conform to plan
exchange limits and Department of Labor regulations. See your plan
materials for further information.

(small solid bullet) The fund may refuse exchange purchases by any
person or group if, in FMR's judgment, the fund would be unable to
invest the money effectively in accordance with its investment
objective and policies, or would otherwise potentially be adversely
affected.

The fund may terminate or modify the exchange privilege in the future.

Other funds may have different exchange restrictions, and may impose
trading fees of up to 3.00% of the amount exchanged. Check each fund's
prospectus for details.

ACCOUNT FEATURES AND POLICIES

FEATURES

The following features are available to buy and sell shares of the
fund.

AUTOMATIC INVESTMENT AND WITHDRAWAL PROGRAMS. Fidelity offers
convenient services that let you automatically transfer money into
your account, between accounts, or out of your account. While
automatic investment programs do not guarantee a profit and will not
protect you against loss in a declining market, they can be an
excellent way to invest for retirement, a home, educational expenses,
and other long-term financial goals. Automatic withdrawal or exchange
programs can be a convenient way to provide a consistent income flow
or to move money between your investments.

<TABLE>
<CAPTION>
<S>                           <C>      <C>  <C>                          <C>
FIDELITY ADVISOR SYSTEMATIC
INVESTMENT PROGRAM TO MOVE
MONEY FROM YOUR BANK ACCOUNT
TO A FIDELITY ADVISOR FUND.

MINIMUM    MINIMUM                         FREQUENCY                    PROCEDURES
INITIAL    ADDITIONAL                      Monthly, bimonthly,          (small solid bullet) To set
$100       $100                            quarterly, or semi-annually  up for a new account,
                                                                        complete the appropriate
                                                                        section on the application.

                                                                        (small solid bullet) To set
                                                                        up for existing accounts,
                                                                        call your investment
                                                                        professional or call
                                                                        Fidelity at the appropriate
                                                                        number found in "General
                                                                        Information" for an
                                                                        application.

                                                                        (small solid bullet) To make
                                                                        changes, call your
                                                                        investment professional or
                                                                        call Fidelity at the
                                                                        appropriate number found in
                                                                        "General Information." Call
                                                                        at least 10 business days
                                                                        prior to your next scheduled
                                                                        investment date.

FIDELITY ADVISOR SYSTEMATIC
WITHDRAWAL PROGRAM TO SET UP
PERIODIC REDEMPTIONS FROM
YOUR INSTITUTIONAL CLASS
ACCOUNT TO YOU OR TO YOUR
BANK CHECKING ACCOUNT.

MINIMUM                       MAXIMUM      FREQUENCY                    PROCEDURES
$100                          $50,000      Monthly, quarterly, or       (small solid bullet) Accounts
                                           semi-annually                with a value of $10,000 or
                                                                        more in Institutional Class
                                                                        shares are eligible for this
                                                                        program.

                                                                        (small solid bullet) To set
                                                                        up, call your investment
                                                                        professional or call
                                                                        Fidelity at the appropriate
                                                                        number found in "General
                                                                        Information" for instructions.

                                                                        (small solid bullet) To make
                                                                        changes, call your
                                                                        investment professional or
                                                                        call Fidelity at the
                                                                        appropriate number found in
                                                                        "General Information." Call
                                                                        at least 10 business days
                                                                        prior to your next scheduled
                                                                        withdrawal date.

</TABLE>

OTHER FEATURES. The following other features are also available to buy
and sell shares of the fund.

WIRE
TO PURCHASE AND SELL SHARES VIA THE FEDERAL RESERVE WIRE SYSTEM.

(small solid bullet) You must sign up for the Wire feature before
using it. Complete the appropriate section on the application when
opening your account.

(small solid bullet) Call your investment professional or call
Fidelity at the appropriate number found in "General Information"
before your first use to verify that this feature is set up on your
account.

(small solid bullet) To sell shares by wire, you must designate the
U.S. commercial bank account(s) into which you wish the redemption
proceeds deposited.

(small solid bullet) To add the wire feature or to change the bank
account designated to receive redemption proceeds at any time prior to
making a redemption request, you should send a letter of instruction,
including a signature guarantee, to your investment professional or to
Fidelity at the address found in "General Information."

POLICIES

The following policies apply to you as a shareholder.

STATEMENTS AND REPORTS that Fidelity sends to you include the
following:

(small solid bullet) Confirmation statements (after transactions
affecting your account balance except reinvestment of distributions in
the fund and certain transactions through automatic investment or
withdrawal programs).

(small solid bullet) Monthly or quarterly account statements
(detailing account balances and all transactions completed during the
prior month or quarter).

(small solid bullet) Financial reports (every six months).

To reduce expenses, only one copy of most financial reports and
prospectuses will be mailed, even if you have more than one account in
the fund. Call Fidelity at 1-888-622-3175 if you need additional
copies of financial reports or prospectuses.

You may initiate many TRANSACTIONS BY TELEPHONE OR ELECTRONICALLY.
Fidelity will not be responsible for any losses resulting from
unauthorized transactions if it follows reasonable security procedures
designed to verify the identity of the investor. Fidelity will request
personalized security codes or other information, and may also record
calls. For transactions conducted through the Internet, Fidelity
recommends the use of an Internet browser with 128-bit encryption. You
should verify the accuracy of your confirmation statements immediately
after you receive them. If you do not want the ability to sell and
exchange by telephone, call Fidelity for instructions. Additional
documentation may be required from corporations, associations, and
certain fiduciaries.

When you sign your ACCOUNT APPLICATION, you will be asked to certify
that your social security or taxpayer identification number is correct
and that you are not subject to 31% backup withholding for failing to
report income to the IRS. If you violate IRS regulations, the IRS can
require the fund to withhold 31% of your taxable distributions and
redemptions.

If your ACCOUNT BALANCE falls below $1,000 (except accounts not
subject to account minimums), you will be given 30 days' notice to
reestablish the minimum balance. If you do not increase your balance,
Fidelity may close your account and send the proceeds to you. Your
shares will be sold at the NAV on the day your account is closed.

Fidelity may charge a FEE FOR CERTAIN SERVICES, such as providing
historical account documents.

DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS

The fund earns interest, dividends, and other income from its
investments, and distributes this income (less expenses) to
shareholders as dividends. The fund also realizes capital gains from
its investments, and distributes these gains (less any losses) to
shareholders as capital gain distributions.

The fund normally declares dividends daily and pays them monthly. The
fund normally pays capital gain distributions in December.

EARNING DIVIDENDS

Shares the fund purchased by an automated purchase order begin to earn
dividends on the day your payment is received.

Shares of the fund purchased by all other purchase orders begin to
earn dividends on the first business day following the day your
payment is received.

Shares of the fund earn dividends until, but not including, the next
business day following the day of redemption.

DISTRIBUTION OPTIONS

When you open an account, specify on your application how you want to
receive your distributions. The following options may be available for
Institutional Class's distributions:

1. REINVESTMENT OPTION. Your dividends and capital gain distributions
will be automatically reinvested in additional Institutional Class
shares. If you do not indicate a choice on your application, you will
be assigned this option.

2. INCOME-EARNED OPTION. Your capital gain distributions will be
automatically reinvested in additional Institutional Class shares of
the fund. Your dividends will be paid in cash.

3. CASH OPTION. Your dividends and capital gain distributions will be
paid in cash.

4. DIRECTED DIVIDENDS(registered trademark) OPTION. Your dividends
will be automatically invested in Institutional Class shares of
another identically registered Fidelity Advisor fund or shares of
identically registered Fidelity funds. Your capital gain distributions
will be automatically invested in Institutional Class shares of
another identically registered Fidelity Advisor fund or shares of
identically registered Fidelity funds, automatically reinvested in
additional Institutional Class shares of the fund, or paid in cash.

Not all distribution options are available for every account. If the
option you prefer is not listed on your account application, or if you
want to change your current option, contact your investment
professional directly or call Fidelity.

If you elect to receive distributions paid in cash by check and the
U.S. Postal Service does not deliver your checks, your distribution
option may be converted to the Reinvestment Option. You will not
receive interest on amounts represented by uncashed distribution
checks.

TAX CONSEQUENCES

As with any investment, your investment in the fund could have tax
consequences for you. If you are not investing through a
tax-advantaged retirement account, you should consider these tax
consequences.

 TAXES ON DISTRIBUTIONS. Distributions you receive from the fund are
subject to federal income tax, and may also be subject to state or
local taxes.

For federal tax purposes, the fund's dividends and distributions of
short-term capital gains are taxable to you as ordinary income, while
the fund's distributions of long-term capital gains are taxable to you
generally as capital gains.

If a fund's distributions exceed its income and capital gains realized
in any year, all or a portion of those distributions may be treated as
a return of capital to shareholders for tax purposes. A return of
capital generally will not be taxable to you but will reduce the cost
basis of your shares and result in a higher reported capital gain or a
lower reported capital loss when you sell your shares.

If you buy shares when a fund has realized but not yet distributed
income or capital gains, you will be "buying a dividend" by paying the
full price for the shares and then receiving a portion of the price
back in the form of a taxable distribution.

Any taxable distributions you receive from the fund will normally be
taxable to you when you receive them, regardless of your distribution
option.

TAXES ON TRANSACTIONS. Your redemptions, including exchanges, may
result in a capital gain or loss for federal tax purposes. A capital
gain or loss on your investment in the fund generally is the
difference between the cost of your shares and the price you receive
when you sell them.

FUND SERVICES


FUND MANAGEMENT

Advisor Mortgage Securities is a mutual fund, an investment that pools
shareholders' money and invests it toward a specified goal.

FMR is the fund's manager.

As of March 25, 1999, FMR had approximately $521.7 billion in
discretionary assets under management.

As the manager, FMR is responsible for choosing the fund's investments
and handling its business affairs.

Affiliates assist FMR with foreign investments:

(small solid bullet) Fidelity Management & Research (U.K.) Inc. (FMR
U.K.), in London, England, serves as a sub-adviser for the fund. FMR
U.K. was organized in 1986 to provide investment research and advice
to FMR. Currently, FMR U.K. provides investment research and advice on
issuers based outside the United States and may also provide
investment advisory services for the fund.

(small solid bullet) Fidelity Management & Research Far East Inc. (FMR
Far East), in Tokyo, Japan, serves as a sub-adviser for the fund. FMR
Far East was organized in 1986 to provide investment research and
advice to FMR. Currently, FMR Far East provides investment research
and advice on issuers based outside the United States and may also
provide investment advisory services for the fund.

(small solid bullet) Effective January 1, 2000, Fidelity Investment
Japan Ltd. (FIJ), in Tokyo, Japan, will serve as a sub-adviser for the
fund. As of September 28, 1999, FIJ had approximately $16.3 billion in
discretionary assets under management. FIJ will provide investment
research and advice on issuers based outside the United States for the
fund.

Fidelity Investments Money Management, Inc. (FIMM), in Merrimack, New
Hampshire, serves as sub-adviser for the fund. FIMM is primarily
responsible for choosing investments for the fund.

FIMM is an affiliate of FMR. As of March 29, 1999, FIMM had
approximately $159.8 billion in discretionary assets under management.

The fund could be adversely affected if the computer systems used by
FMR and other service providers do not properly process and calculate
date-related information from and after January 1, 2000. FMR has
advised the fund that it is actively working on necessary changes to
its computer systems and expects that its systems, and those of other
major service providers, will be modified prior to January 1, 2000.
However, there can be no assurance that there will be no adverse
impact on the fund.

Thomas Silvia is vice president and manager of Advisor Mortgage
Securities, which he has managed since October 1997; he was a
co-manager of the fund since February 1997. He also manages other
Fidelity funds. Mr. Silvia joined Fidelity as a senior mortgage trader
in 1993.

From time to time a manager, analyst, or other Fidelity employee may
express views regarding a particular company, security, industry, or
market sector. The views expressed by any such person are the views of
only that individual as of the time expressed and do not necessarily
represent the views of Fidelity or any other person in the Fidelity
organization. Any such views are subject to change at any time based
upon market or other conditions and Fidelity disclaims any
responsibility to update such views. These views may not be relied on
as investment advice and, because investment decisions for a Fidelity
fund are based on numerous factors, may not be relied on as an
indication of trading intent on behalf of any Fidelity fund.

Fidelity investment personnel may invest in securities for their own
investment accounts pursuant to a code of ethics that establishes
procedures for personal investing and restricts certain transactions.

The fund pays a management fee to FMR. The management fee is
calculated and paid to FMR every month. The fee is calculated by
adding a group fee rate to an individual fund fee rate, dividing by
twelve, and multiplying the result by the fund's average net assets
throughout the month.

The group fee rate is based on the average net assets of all the
mutual funds advised by FMR. This rate cannot rise above 0.37%, and it
drops as total assets under management increase.

For October 1999, the group fee rate was 0.1289%. The individual fund
fee rate is 0.30%.

The total management fee for the fiscal year ended October 31, 1999,
was 0.43% of the fund's average net assets.

FMR pays FIMM, FMR U.K. and FMR Far East for providing assistance with
investment advisory services. FMR Far East will pay FIJ for providing
assistance with investment advisory services.

FMR may, from time to time, agree to reimburse each class for
management fees and other expenses above a specified limit. FMR
retains the ability to be repaid by a class if expenses fall below the
specified limit prior to the end of the fiscal year. Reimbursement
arrangements, which may be discontinued by FMR at any time, can
decrease a class's expenses and boost its performance.

FUND DISTRIBUTION

The fund is composed of multiple classes of shares. All classes of the
fund have a common investment objective and investment portfolio.

FDC distributes Institutional Class shares.

Institutional Class has adopted a Distribution and Service Plan
pursuant to Rule 12b-1 under the Investment Company Act of 1940 that
recognizes that FMR may use its management fee revenues, as well as
its past profits or its resources from any other source, to pay FDC
for expenses incurred in connection with providing services intended
to result in the sale of Institutional Class shares and/or shareholder
support services. FMR, directly or through FDC, may pay
intermediaries, such as banks, broker-dealers and other
service-providers, that provide those services. Currently, the Board
of Trustees has authorized such payments for Institutional Class.

To receive payments made pursuant to a Distribution and Service Plan,
intermediaries must sign the appropriate agreement with FDC in
advance.

FMR may allocate brokerage transactions in a manner that takes into
account the sale of shares of the Fidelity Advisor funds, provided
that the fund receives brokerage services and commission rates
comparable to those of other broker-dealers.

No dealer, sales representative, or any other person has been
authorized to give any information or to make any representations,
other than those contained in this prospectus and in the related
statement of additional information (SAI), in connection with the
offer contained in this prospectus. If given or made, such other
information or representations must not be relied upon as having been
authorized by the fund or FDC. This prospectus and the related SAI do
not constitute an offer by the fund or by FDC to sell shares of the
fund to or to buy shares of the fund from any person to whom it is
unlawful to make such offer.

APPENDIX


FINANCIAL HIGHLIGHTS

The financial highlights table is intended to help you understand
Institutional Class's financial history for the period of the class's
operations. Certain information reflects financial results for a
single class share. The total returns in the table represent the rate
that an investor would have earned (or lost) on an investment in the
class (assuming reinvestment of all dividends and distributions). This
information has been audited by PricewaterhouseCoopers LLP,
independent accountants, whose report, along with the fund's financial
highlights and financial statements, are included in the fund's annual
report. A free copy of the annual report is available upon request.

SELECTED PER-SHARE DATA AND RATIOS

Years ended October 31,          1999      1998      1997 H      1997 G

SELECTED PER-SHARE DATA

Net asset value, beginning of    $ 10.950  $ 11.010  $ 11.040    $ 10.830
period

Income from Investment
Operations

Net investment income D           .669      .693      .172        .263

Net realized and unrealized       (.343)    (.063)    .050        .226
gain (loss)

Total from investment             .326      .630      .222        .489
operations

Less Distributions

From net investment income        (.656)    (.660)    (.172)      (.279)

From net realized gain            (.150)    (.030)    (.080)      -

Total distributions               (.806)    (.690)    (.252)      (.279)

Net asset value, end of period   $ 10.470  $ 10.950  $ 11.010    $ 11.040

TOTAL RETURN B, C                 3.09%     5.86%     2.05%       4.59%

RATIOS AND SUPPLEMENTAL DATA

Net assets, end of period        $ 15,422  $ 22,038  $ 19,718    $ 13,177
(000 omitted)

Ratio of expenses to average      .75% E    .75% E    .75% A, E   .75% A, E
net assets

Ratio of expenses to average      .75%      .75%      .75% A      .70% A, F
net assets  after expense
reductions

Ratio of net investment           6.24%     6.30%     6.35% A     6.29% A
income to average  net assets

Portfolio turnover rate           183%      262%      125% A      149%


A ANNUALIZED
B TOTAL RETURNS FOR PERIODS OF LESS THAN ONE YEAR ARE NOT ANNUALIZED.
C THE TOTAL RETURNS WOULD HAVE BEEN LOWER HAD CERTAIN EXPENSES NOT
BEEN REDUCED DURING THE PERIODS SHOWN.
D NET INVESTMENT INCOME PER SHARE HAS BEEN CALCULATED BASED ON AVERAGE
SHARES OUTSTANDING DURING THE PERIOD.
E FMR AGREED TO REIMBURSE A PORTION OF THE CLASS' EXPENSES DURING THE
PERIOD. WITHOUT THIS REIMBURSEMENT, THE CLASS' EXPENSE RATIO WOULD
HAVE BEEN HIGHER.
F FMR OR THE FUND HAS ENTERED INTO VARYING ARRANGEMENTS WITH THIRD
PARTIES WHO EITHER PAID OR REDUCED A PORTION OF THE CLASS' EXPENSES.
G FOR THE PERIOD MARCH 3, 1997 (COMMENCEMENT OF SALE OF INSTITUTIONAL
CLASS SHARES) TO JULY 31, 1997
H THREE MONTHS ENDED OCTOBER 31


You can obtain additional information about the fund. The fund's SAI
includes more detailed information about the fund and its investments.
The SAI is incorporated herein by reference (legally forms a part of
the prospectus). The fund's annual and semi-annual reports include a
discussion of the fund's holdings and recent market conditions and the
fund's investment strategies that affected performance.

For a free copy of any of these documents or to request other
information or ask questions about the fund, call Fidelity at
1-888-622-3175.

The SAI, the fund's annual and semi-annual reports and other related
materials are available on the SEC's Internet Web site
(http://www.sec.gov). You can obtain copies of this information upon
paying a duplicating fee, by writing the Public Reference Section of
the SEC, Washington, D.C. 20549-6009. You can also review and copy
information about the fund, including the fund's SAI, at the SEC's
Public Reference Room in Washington, D.C. Call 1-800-SEC-0330 for
information on the operation of the SEC's Public Reference Room.

INVESTMENT COMPANY ACT OF 1940, FILE NUMBER, 811-4707

Fidelity Investments & (Pyramid) Design, Fidelity, Fidelity
Investments, and Directed Dividends are registered trademarks of FMR
Corp.

The third party marks appearing above are the marks of their
respective owners.

1.   729827.101                                    AMORI-pro-1299-01



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