UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F
FORM 13F COVER PAGE
Report for the Calendar Year or Quarter ended: December 31, 1999
Check here if Amendment [ ]; Amendment Number:
This Amendment (Check only one.)[ ] is a restatement.
[ ] adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: Advanced Investment Technology, Inc.
Address: 311 Park Place Blvd.
Suite 250
Clearwater, FL 33759
13F File Number: 28-5970
The institutional investment manager filing this report and the
person by whom it is signed hereby represent that the person
signing the report is authorized to submit it, that all
information contained herein is true, correct and complete, and
that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of
this form.
Person Signing this Report on Behalf of Reporting Manager:
Name: Douglas W. Case
Title: President
Phone: 727-799-3671
Signature, Place, and Date of Signing:
Douglas W. Case, Clearwater, Florida, February 1, 2000
Report Type (Check only one.):
[X] 13F HOLDINGS REPORT.
[ ] 13F NOTICE.
[ ] 13F COMBINATION REPORT.
List of Other Managers Reporting for this Manager:
I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE
ACT OF 1934.
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FORM 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total 72
Form 13F Information Table Value total: $944,819
List of Other Included Managers:None
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TITLE
OF VAL SH/PRN SH/ PT/ INV OTHR
NAME OF ISSUER CLASS CUSIP x$1000 AMT PRN CL DISCR MGRS SOLE SHRD NONE
AFLAC INC COM 001055102 6134 130000SH SOLE 130000
ALUMINUM CO AMER COM 013817101 2087 25140SH SOLE 25140
AMERICA ONLINE INC DEL COM COM 02364J104 12701 167400SH SOLE 167400
AMERICAN EXPRESS CO COM 025816109 3159 19000SH SOLE 19000
AMERICAN GENERAL CORP COM 026351106 1980 26100SH SOLE 26100
AMERICAN INTL GROUP COM 026874107 2135 19744SH SOLE 19744
AMERICAN TEL&TELEG CO COM 001957109 3797 74734SH SOLE 74734
AMGEN INC COM COM 031162100 18081 301040SH SOLE 301040
ANHEUSER BUSCH COS INC COM 035229103 13356 188440SH SOLE 188440
APPLIED MATLS INC COM 038222105 13594 107300SH SOLE 107300
AT&T CORP COM LIB GRP A COM 001957208 4971 87500SH SOLE 87500
ATLANTIC RICHFIELD CO COM 048825103 2320 26821SH SOLE 26821
BAXTER INTL INC COM 071813109 9748 155200SH SOLE 155200
BELL ATLANTIC CORP COM 077853109 1730 28100SH SOLE 28100
BOEING CO COM 097023105 15270 368500SH SOLE 368500
BRISTOL MYERS SQUIBB COM 110122108 26136 407184SH SOLE 407184
CIGNA CORP COM 125509109 1563 19399SH SOLE 19399
CISCO SYS INC COM 17275R102 64103 598398SH SOLE 598398
CITIGROUP INC COM COM 172967101 4335 77850SH SOLE 77850
COLGATE PALMOLIVE CO COM 194162103 13786 212100SH SOLE 212100
COMCAST CORP CL A SPL COM 200300200 13308 263200SH SOLE 263200
COMPUTER ASSOC INTL COM 204912109 14491 207200SH SOLE 207200
COMPUWARE CORP COM COM 205638109 7722 207300SH SOLE 207300
COSTCO COMPANIES INC COM COM 22160Q102 7190 78800SH SOLE 78800
DAYTON HUDSON CORP COM COM 239753106 7065 96200SH SOLE 96200
DELL COMPUTER CORP COM 247025109 23057 452100SH SOLE 452100
DOW CHEM CO COM 260543103 1737 13000SH SOLE 13000
DU PONT E I DE NEMOURS COM 263534109 6331 96100SH SOLE 96100
E M C CORP MASS COM COM 268648102 19442 177960SH SOLE 177960
ELECTRONIC DATA SYS NW COM COM 285661104 9431 140900SH SOLE 140900
ENTERGY CORP COM 29364G103 1439 55900SH SOLE 55900
EXXON CORP COM 302290101 3695 45869SH SOLE 45869
FEDERAL NATL MTG ASSN COM 313586109 6786 108680SH SOLE 108680
FIFTH THIRD BANCORP COM 316773100 11182 152400SH SOLE 152400
FIRST DATA CORP COM COM 319963104 8899 180460SH SOLE 180460
FORD MTR CO DEL COM 345370100 1544 28970SH SOLE 28970
GAP INC DEL COM COM 364760108 6206 134915SH SOLE 134915
GENERAL ELEC CO COM 369604103 84577 546542SH SOLE 546542
GOLDMAN SACHS GROUP COM COM 38141G104 5180 55000SH SOLE 55000
HEWLETT PACKARD CO COM 428236103 14458 127100SH SOLE 127100
HOME DEPOT INC COM 437076102 32509 472854SH SOLE 472854
HOUSEHOLD INTL INC COM 441815107 4742 127300SH SOLE 127300
ILLINOIS TOOL WKS INC COM 452308109 9236 136700SH SOLE 136700
INTEL CORP COM 458140100 39091 474913SH SOLE 474913
INTERNATIONAL BUS MACH COM 459200101 2762 25600SH SOLE 25600
INTERNATIONAL PAPER CO COM 460146103 1371 24300SH SOLE 24300
JOHNSON & JOHNSON COM 478160104 18874 202400SH SOLE 202400
LIMITED INC COM 532716107 1074 24800SH SOLE 24800
LOWES COS INC COM COM 548661107 6298 105400SH SOLE 105400
LUCENT TECHNOLOGY COM 549463107 27613 368170SH SOLE 368170
MERCK & CO INC COM 589331107 13276 197600SH SOLE 197600
MERRILL LYNCH & CO INC COM 590188108 1208 14500SH SOLE 14500
MICROSOFT CORP COM COM 594918104 69745 597387SH SOLE 597387
MINNESOTA MNG & MFG CO COM 604059105 1106 11300SH SOLE 11300
NORTHERN TELECOM LTD COM 656569100 4828 47800SH SOLE 47800
OCCIDENTAL PETE CP DEL COM 674599105 1996 92300SH SOLE 92300
OMNICOM GROUP INC COM 681919106 12300 123000SH SOLE 123000
ORACLE SYSTEMS CORP COM COM 68389X105 37921 338390SH SOLE 338390
QUALCOMM INC COM COM 747525103 23671 134400SH SOLE 134400
SARA LEE CORP COM 803111103 11462 519520SH SOLE 519520
SCHERING PLOUGH CORP COM COM 806605101 18151 428350SH SOLE 428350
SCHWAB CHARLES CP NEW COM 808513105 11008 287800SH SOLE 287800
SEARS ROEBUCK & CO COM 812387108 1182 38900SH SOLE 38900
SOLECTRON CORP COM COM 834182107 8419 88500SH SOLE 88500
SOUTHWESTERN BELL CORP COM COM 78387G103 9209 188900SH SOLE 188900
SUN MICROSYSTEMS INC COM 866810104 23169 299200SH SOLE 299200
TANDY CORP COM 875382103 1573 31980SH SOLE 31980
TEXAS INSTRS INC COM 882508104 18540 191880SH SOLE 191880
UNITED TECHNOLOGIES CP COM 913017109 5444 83750SH SOLE 83750
WAL MART STORES INC COM 931142103 39557 572260SH SOLE 572260
WELLS FARGO & CO DEL COM COM 949746101 958 23700SH SOLE 23700
WORLDCOM INC GA COM COM 55268B106 11796 222300SH SOLE 222300
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