UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F
FORM 13F COVER PAGE
Report for the Calendar Year or Quarter Ended: September 30,
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 November 15,
1999
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: 84 data records
Form 13F Information Table Value Total: $56,198
List of Other Included Managers:
No. 13F File Number Name
NONE
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INFORMATION TABLE
POTOMAC ASSET MANAGEMENT COMPANY, INC.
FORM 13F
September 30, 1999
Voting Authority
----------------------
Title of Value Shares/ Sh/ Put/ Invstmt Other
Name of Issuer class CUSIP (x$1000) Prn Amt Prn Call Dscretn Managers Sole Shared None
- -------------------------- --------- ------- --------- -------- -------- --- ---- ------- ------ ----- -------
3COM CORP COM 397 13792 SH Sole 13792
ABBOTT LABS COM 002824100 829 22600 SH Sole 22600
ALZA CORP COM 022615108 390 9100 SH Sole 9100
AMERICAN HOME PRODS COM 026609107 1057 25471 SH Sole 25471
AMERICAN INTERNAT GRP COM 026874107 1098 12634 SH Sole 12634
AMERICAN MGMT SYS,I COM 353 13750 SH Sole 13750
AMERICAN POWER CONVER COM 029066107 534 28100 SH Sole 28100
AT&T LIBERTY MEDIA GP A COM 368 9860 SH Sole 9860
AUTOMATIC DATA PROCESSING COM 053015103 212 4750 SH Sole 4750
BANK OF NY CO INC COM 064057102 904 27050 SH Sole 27050
BELL ATLANTIC CORP COM 077853109 471 7000 SH Sole 7000
BOWATER INC COM 102183100 315 6000 SH Sole 6000
CAPITAL ONE FINANCIAL COM 14040H105 224 5744 SH Sole 5744
CARDINAL HEALTH INC COM 14149y108 365 6700 SH Sole 6700
CARNIVAL CORPORATION COM 337 7745 SH Sole 7745
CHASE MANHATTAN CORP COM 163722101 430 5700 SH Sole 5700
CISCO SYSTEMS COM 17275R102 2444 35652 SH Sole 35652
CITIGROUP INC COM 172967101 246 5600 SH Sole 5600
COLGATE-PALMOLIVE COM 194162103 64 1400 SH Sole 1400
COMPUTER ASSOCIATES COM 204912109 1372 22439 SH Sole 22439
DANAHER CORP COM 235851102 300 5700 SH Sole 5700
DAYTON HUDSON CORP COM 468 7800 SH Sole 7800
DEVELOPERS DIVERS RLTY COM 251591103 154 11000 SH Sole 11000
EMC CORP COM 268648102 2787 39045 SH Sole 39045
EMERSON ELECTRIC COM 3 50 SH Sole 50
ENRON CORP COM 546 13300 SH Sole 13300
EXXON CORP COM 302290101 175 2302 SH Sole 2302
FREDDIE MAC COM 313400301 458 8800 SH Sole 8800
GENERAL ELEC CO COM 369604103 1764 14875 SH Sole 14875
GLOBAL CROSSING LTD COM 1270 47931 SH Sole 47931
GTE CORP COM 362320103 1110 14435 SH Sole 14435
HALLIBURTON COMPANY COM 406216101 303 7400 SH Sole 7400
HEINZ, H J CO COM 423074103 241 5600 SH Sole 5600
HEWLETT PACKARD CO COM 428236103 25 280 SH Sole 280
HOME DEPOT INC COM 437076102 2007 29250 SH Sole 29250
ILLINOIS TOOL WORKS INC COM 292 3920 SH Sole 3920
INDYMAC MORTGAGE HOLD INC COM 456607100 174 11633 SH Sole 11633
INTEL CORPORATION COM 458140100 993 13360 SH Sole 13360
INTERNATIONAL BUS MACHINE COM 459200101 1007 8320 SH Sole 8320
INTERNATIONAL PAPER COM 542 11275 SH Sole 11275
INTIMATE BRANDS INC COM 313 8034 SH Sole 8034
JDS UNIPHASE CORP COM 909149106 228 2000 SH Sole 2000
LUCENT TECHNOLOGIES INC COM 849 13082 SH Sole 13082
MCI WORLDCOM INC COM 98155K102 2374 33033 SH Sole 33033
MEDTRONIC INC COM COM 391 11000 SH Sole 11000
MELLON BANK CORP COM 494 14700 SH Sole 14700
MERCK & CO INC COM 589331107 1216 18761 SH Sole 18761
MICRO SYSTEMS INC. COM 529 13050 SH Sole 13050
MICROSOFT CORP COM 594918104 1041 11500 SH Sole 11500
MINNESOTA MNG & MFG CO COM 604059105 58 600 SH Sole 600
MOBIL CORP COM 607059102 485 4809 SH Sole 4809
MONSANTO COMPANY COM 611662107 507 14205 SH Sole 14205
NATIONAL SEMICONDUCTOR COM 397 13000 SH Sole 13000
NEXTEL COMMUNICATIONS CL A COM 865 12750 SH Sole 12750
NORTHERN BORDER COM 664785102 248 8550 SH Sole 8550
OMNICOM GROUP COM 756 9550 SH Sole 9550
ORACLE CORP COM 68389X105 915 20106 SH Sole 20106
PEPSICO INC COM 713448108 298 9775 SH Sole 9775
PFIZER INC COM 717081103 519 14480 SH Sole 14480
PHILIP MORRIS COS INC COM 718154107 229 6700 SH Sole 6700
PRAXAIR INC COM 74005P104 531 11550 SH Sole 11550
PRE-PAID LEGAL SERVICES COM 740065107 295 7500 SH Sole 7500
PSINET INC COM 601 16700 SH Sole 16700
QUALCOMM INC COM 747525103 3547 18750 SH Sole 18750
RELIASTAR FINANCIAL CORP COM 239 7201 SH Sole 7201
SBC COMMUNICATIONS INC. COM 78387G103 509 9960 SH Sole 9960
SCHERING PLOUGH CORP COM 806605101 324 7425 SH Sole 7425
SCHLUMBERGER LTD COM 806857108 534 8575 SH Sole 8575
SEALED AIR CORP COM 422 8225 SH Sole 8225
SPRINT CORP FON GROUP COM 852061100 429 7912 SH Sole 7912
SPRINT CORP PCS GROUP COM 852061506 1128 15128 SH Sole 15128
STAPLES INC COM 855030102 262 12019 SH Sole 12019
SUN MICROSYSTEMS INC COM 866810104 304 3270 SH Sole 3270
TECHNOLOGY SECTOR INDEX COM 81369y803 254 6163 SH Sole 6163
TEXAS INSTRUMENTS COM 882508104 288 3500 SH Sole 3500
TIME WARNER INC COM 887315109 985 16210 SH Sole 16210
TJX COS INC (new) COM 213 7600 SH Sole 7600
TYCO INTERNATIONAL LTD NEW COM 2095 20295 SH Sole 20295
VALSPAR CORP COM 491 15025 SH Sole 15025
VODAFONE AIRTOUCH SP ADR COM 1092 4591 SH Sole 4591
WASHINGTON REAL ESTATE I COM 939653101 242 15350 SH Sole 15350
WILLAMETTE INDUSTRIES INC COM 969133107 202 4675 SH Sole 4675
SEALED AIR CONV PFD A PFD CV 81211k209 642 12655 SH Sole 12655
HOUSTON INDS PFD 7% 7/1/00 PFD 442161204 826 8100 SH Sole 8100
REPORT SUMMARY 84 DATA RECORDS 56198 0 OTHER MANAGERS ON WHOSE BEHALF REPORT IS FILED
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