SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
FORM N-1A
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [X]
File No. 33-65170:
Pre-Effective Amendment No.___
Post-Effective Amendment No._8_
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 [X]
File No. 811-7822:
Amendment No._9_
(Check appropriate box or boxes.)
AMERICAN CENTURY INVESTMENT TRUST
_________________________________________________________________
(Exact Name of Registrant as Specified in Charter)
American Century Tower
4500 Main Street, Kansas City, MO 64111
_________________________________________________________________
(Address of Principal Executive Offices) (Zip Code)
Registrant's Telephone Number, including Area Code: (816) 531-5575
David C. Tucker, Esq., 4500 Main Street, Kansas City, MO 64111
_________________________________________________________________
(Name and Address of Agent for Service)
Approximate Date of Proposed Public Offering: July 1, 1999
It is proposed that this filing will become effective (check appropriate box)
[ ] immediately upon filing pursuant to paragraph (b)
[X] on July 1, 1999 pursuant to paragraph (b)
[ ] 60 days after filing pursuant to paragraph (a)(1)
[ ] on (date) pursuant to paragraph (a)(1)
[ ] 75 days after filing pursuant to paragraph (a)(2)
[ ] on (date) pursuant to paragraph (a)(2) of rule 485.
If appropriate, check the following box:
[X] This post-effective amendment designates a new effective date for a
previously filed post-effective amendment.
- --------------------------------------------------------------------------------
This filing is being made to extend the date of effectiveness of the
Registrant's Post-Effective Amendment No. 7 to July 1, 1999. The Post-Effective
Amendment originally requested effectiveness as of June 1, 1999.
The following documents are hereby incorporated by reference:
* Prospectuses for each of the funds under the issuer American Century
Investment Trust, dated June 1, 1999 filed pursuant to Rule 485(a) on April
1, 1999 (Accession No. 0000908406-99-000003).
* Statement of Additional Information for American Century Investment Trust,
dated June 1, 1999 filed pursuant to Rule 485(a) on April 1, 1999
(Accession No. 0000908406-99-000003).
* Part C to the Registration Statement of American Century Investment Trust,
dated June 1, 1999 filed pursuant to Rule 485(a) on April 1, 1999
(Accession No. 0000908406-99-000003).
Registrant is extending effectiveness of its Registration Statement in order to
incorporate comments provided to its manager by the staff of the Commission.
<PAGE>
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it has duly caused
this Post-Effective Amendment No. 8 to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Kansas City, State of
Missouri on the 28th day of May, 1999.
AMERICAN CENTURY INVESTMENT TRUST (Registrant)
By: /*/George A. Rio
George A. Rio
President and Principal Executive Officer
Pursuant to the requirements of the Securities Act of 1933, this Post-Effective
Amendment No. 8 has been signed below by the following persons in the capacities
and on the dates indicated.
<TABLE>
<CAPTION>
Date
<S> <C> <C>
*George A. Rio President, Principal May 28, 1999
- --------------------------------- Executive and Principal
George A. Rio Financial Officer
*Maryanne Roepke Vice President, Treasurer May 28, 1999
- --------------------------------- and Principal Accounting
Maryanne Roepke Officer
*Albert A. Eisenstat Director May 28, 1999
- ---------------------------------
Albert A. Eisenstat
*Ronald J. Gilson Director May 28, 1999
- ---------------------------------
Ronald J. Gilson
*William M. Lyons Director May 28, 1999
- ---------------------------------
William M. Lyons
*Myron S. Scholes Director May 28, 1999
- ---------------------------------
Myron S. Scholes
*Kenneth E. Scott Director May 28, 1999
- ---------------------------------
Kenneth E. Scott
*Isaac Stein Director May 28, 1999
- ---------------------------------
Isaac Stein
*James E. Stowers III Director May 28, 1999
- ---------------------------------
James E. Stowers III
*Jeanne D. Wohlers Director May 28, 1999
- ---------------------------------
Jeanne D. Wohlers
</TABLE>
/s/Charles A. Etherington
*by Charles A. Etherington, Attorney in Fact (pursuant to a Power of Attorney
dated December 18, 1998).
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN CENTURY INVESTMENT TRUST AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH REPORT.
</LEGEND>
<CIK> 0000908406
<NAME> AMERICAN CENTURY INVESTMENT TRUST
<SERIES>
<NUMBER> 1
<NAME> PRIME MONEY MARKET FUND
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> FEB-28-1999
<PERIOD-END> FEB-28-1999
<INVESTMENTS-AT-COST> 2,882,246,597
<INVESTMENTS-AT-VALUE> 2,882,246,597
<RECEIVABLES> 10,128,723
<ASSETS-OTHER> 4,988,271
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2,897,363,591
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 42,268,424
<TOTAL-LIABILITIES> 42,268,424
<SENIOR-EQUITY> 2,855,451,853
<PAID-IN-CAPITAL-COMMON> 0
<SHARES-COMMON-STOCK> 2,855,451,853
<SHARES-COMMON-PRIOR> 1,417,565,184
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (356,686)
<NET-ASSETS> 2,855,095,167
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 118,945,493
<OTHER-INCOME> 0
<EXPENSES-NET> 12,945,585
<NET-INVESTMENT-INCOME> 106,360,493
<REALIZED-GAINS-CURRENT> (18,522)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 106,341,971
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 106,360,493
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5,764,005,956
<NUMBER-OF-SHARES-REDEEMED> 4,427,041,476
<SHARES-REINVESTED> 100,922,189
<NET-CHANGE-IN-ASSETS> 1,437,784,480
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 6,282,235
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 12,859,387
<AVERAGE-NET-ASSETS> 2,166,525,616
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> 0.02
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.85
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
