SUPPLEMENT TO THE
FIDELITY U.S. BOND INDEX FUND
APRIL 21, 1999
STATEMENT OF ADDITIONAL INFORMATION
THE FOLLOWING INFORMATION REPLACES SIMILAR INFORMATION FOUND IN THE
"INVESTMENT POLICIES AND LIMITATIONS" SECTION BEGINNING ON PAGE 2.
(iii) The fund may borrow money only (a) from a bank or from a
registered investment company or portfolio for which FMR or an
affiliate serves as investment adviser or (b) by engaging in reverse
repurchase agreements with any party (reverse repurchase agreements
are treated as borrowings for purposes of fundamental investment
limitation (3)).
(v) The fund does not currently intend to lend assets other than
securities to other parties, except by (a) lending money (up to 15% of
the fund's net assets) to a registered investment company or portfolio
for which FMR or an affiliate serves as investment adviser or (b)
acquiring loans, loan participations, or other forms of direct debt
instruments and, in connection therewith, assuming any associated
unfunded commitments of the sellers. (This limitation does not apply
to purchases of debt securities or to repurchase agreements.)
THE FOLLOWING INFORMATION SUPPLEMENTS THE INFORMATION FOUND IN THE
"TRANSFER AND SERVICE AGENT AGREEMENTS" SECTION BEGINNING ON PAGE
19.
In addition, FIIOC receives the pro rata portion of the transfer
agency fees applicable to shareholder accounts in Fidelity Four-in-One
Index Fund, a fund of funds managed by an FMR affiliate, according to
the percentage of Fidelity Four-in-One Index Fund's assets that is
invested in the fund.
