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.
Institution Investment Manager Filing this Report:
Name: POTOMAC ASSET MANAGEMENT COMPANY, INC.
3 BETHESDA METRO CENTER, SUITE 530
BETHESDA, MARYLAND 20814
13f File Number: 801-16383
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 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: Goodloe E. Byron, Jr.
Title: President
Phone: (301) 657-2300
Signature, Place, and Date of Signing:
Goodloe E. Byron, Jr., Bethesda, Maryland February 9, 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.
FORM 13F SUMMARY PAGE
Report Summary:
Number of other Included Managers: 0
Form 13F Information Table Entry Total: 51 data records
Form 13F Information Table Value Total: $28,475
List of Other Included Managers:
No. 13F File Number Name
NONE
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INFORMATION TABLE
POTOMAC ASSET MANAGEMENT COMPANY, INC.
FORM 13F
December 31, 1999
Voting Authority
--------------------------
Title Value Shares/ Sh/ Put/ Invstmt Other
Name of Issuer of Class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None
- ------------------------------ ------- -------- --------- -------- -------- --- ---- ------- ------------ -------- ----
ALLERGAN INC COM COM 211 4250 SH Sole 4250
AMERICAN HOME PRODS CORP COM 026609107 560 14279 SH Sole 14279
AMERICAN INTERNATIONAL GROUP COM 026874107 289 2670 SH Sole 2670
AMERICAN MANAGEMENT SYSTEMS, I COM 249 7950 SH Sole 7950
AMERICAN POWER CONVERSION COM 029066107 517 19600 SH Sole 19600
AMGEN INC COM 031162100 384 6400 SH Sole 6400
BANK OF NY CO INC COM 064057102 340 8500 SH Sole 8500
BELL ATLANTIC CORP COM 077853109 557 9048 SH Sole 9048
CARNIVAL CORPORATION COM 423 8850 SH Sole 8850
CISCO SYSTEMS COM 17275R102 1244 11610 SH Sole 11610
CITIGROUP INC COM 172967101 312 5600 SH Sole 5600
COLGATE-PALMOLIVE COM 194162103 286 4400 SH Sole 4400
COMPUTER ASSOCIATES COM 204912109 703 10050 SH Sole 10050
COOPER TIRE & RUBBER COM 300 19072 SH Sole 19072
CTS CORP COM 126501105 411 5450 SH Sole 5450
DAYTON HUDSON CORPORATION COM 257 3500 SH Sole 3500
EMC CORP COM 268648102 1172 10725 SH Sole 10725
EMERSON ELECTRIC COM 205 3566 SH Sole 3566
EXXON MOBILE COM 619 7681 SH Sole 7681
GENERAL ELEC CO COM 369604103 973 6290 SH Sole 6290
GLOBAL CROSSING LTD COM 242 4850 SH Sole 4850
GTE CORP COM 362320103 523 7414 SH Sole 7414
HEWLETT PACKARD CO COM 428236103 343 3012 SH Sole 3012
HOME DEPOT INC COM 437076102 1052 15300 SH Sole 15300
ILLINOIS TOOL WORKS INC COM 218 3220 SH Sole 3220
INTEL CORPORATION COM 458140100 809 9825 SH Sole 9825
INTERNATIONAL BUSINESS MACHINE COM 459200101 307 2848 SH Sole 2848
INTERNATIONAL PAPER COM 264 4675 SH Sole 4675
MCI WORLDCOM INC COM 98155K102 751 14148 SH Sole 14148
MEDTRONIC INC COM COM 397 10900 SH Sole 10900
MELLON BANK CORP COM 276 8100 SH Sole 8100
MENS WEARHOUSE INC COM 272 9250 SH Sole 9250
MERCK & CO INC COM 589331107 1609 23949 SH Sole 23949
MICRO SYSTEMS INC. COM 795 10750 SH Sole 10750
MICROSOFT CORP COM 594918104 864 7400 SH Sole 7400
OMNICOM GROUP COM 460 4600 SH Sole 4600
ORACLE CORP COM 68389X105 713 6361 SH Sole 6361
PEPSICO INC COM 713448108 382 10850 SH Sole 10850
PFIZER INC COM 717081103 207 6380 SH Sole 6380
PRICE T. ROWE COM 741477103 325 8800 SH Sole 8800
QUALCOMM INC COM 747525103 3213 18240 SH Sole 18240
SCHERING PLOUGH CORP COM 806605101 219 5175 SH Sole 5175
SEALED AIR CORP COM 227 4375 SH Sole 4375
SEI INVESTMENTS COMPANY COM 256 2150 SH Sole 2150
SPRINT CORP FON GROUP COM 852061100 660 9802 SH Sole 9802
SPRINT CORP PCS GROUP COM 852061506 894 8725 SH Sole 8725
TECHNOLOGY SECTOR INDEX COM 81369y803 222 4125 SH Sole 4125
TIME WARNER INC COM 887315109 466 6450 SH Sole 6450
TYCO INTERNATIONAL LTD NEW COM 803 20600 SH Sole 20600
VALSPAR CORP COM 275 6575 SH Sole 6575
VODAFONE AIRTOUCH PLC-SP ADR COM 417 8430 SH Sole 8430
REPORT SUMMARY 51 DATA RECORDS 28475 0 OTHER MANAGERS ON WHOSE BEHALF REPORT IS FILED
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