<PAGE>
<PAGE>
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F COVER PAGE
Report for the Calendar Year or Quarter Ended: 09/30/00
Check here if Amendment / /; Amendment Number:
This Amendment (Check only one): / / is a restatement
/ / adds new holdings entries.
Institutional Investment Manager Filing this Report:
RONN C. LOEWENTHAL d/b/a
LOEWENTHAL CAPITAL MANAGEMENT
235 Montgomery Street, Suite 920
San Francisco, CA 94104
Form 13F File Number: 28-05315
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:
RONN C. LOEWENTHAL
415-788-4823
Signature, Place and Date of Signing:
/s/ Ronn C. Loewenthal
______________________
Ronn C. Loewenthal,
d/b/a Loewenthal Capital Management
San Francisco, CA
11/07/00
Report Type (Check only one):
/ x / 13F HOLDINGS REPORT. (Check here if all holdings of this
reporting manager are reported in this report)
/ / 13F NOTICE. (Check here if no holdings reported are in
this report, and all holdings are reported by other reporting
manager(s))
/ / 13F COMBINATION REPORT. (Check here if a portion of the
holdings for this reporting manager are reported in this report
and a portion are reported by other reporting manager(s))
<PAGE>
<PAGE>
FORM 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 65
Form 13F Information Table Value Total (x$1000): 68,717
List of Other Included Managers: None
<PAGE>
<PAGE>
<TABLE>
FORM 13F INFORMATION TABLE
<CAPTION>
Name of Issuer Title of CUSIP Value Shrs or Sh/ Put/ Investment Other Voting Authority
Class (x$1000) Prn Amt Prn Call Discretion Managers Sole Shared None
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
ADAPTEC INC COM Common 00651F108 600 30000 SH Sole 30000
ADELPHIA COMMUNICATIONS Common 006848105 1474 30000 SH Sole 30000
ADVANCED FIBRE COMMNCT COM Common 00754A105 757 20000 SH Sole 20000
ALLEGHENY ENERGY INC COM Common 017361106 1337 35000 SH Sole 35000
AMDOCS LTD ORD Common G02602103 1060 17000 SH Sole 17000
AMERICA ONLINE INC DEL COM Common 02364J104 1075 20000 SH Sole 20000
APPLIED MICROSYSTEMS COM Common 037935103 1000 100000 SH Sole 100000
ATMEL CORP COM Common 049513104 456 30000 SH Sole 30000
AVANEX CORP COM Common 05348W109 1077 10000 SH Sole 10000
Abbott Laboratories Common 002824100 1522 32000 SH Sole 32000
CACHEFLOW INC COM Common 126946102 2181 15249 SH Sole 15249
CENTRA SOFTWARE INC COM Common 15234X103 149 23000 SH Sole 23000
CHIPPAC INC CL A Common 169657103 594 50000 SH Sole 50000
CITIGROUP INC COM Common 172967101 721 13333 SH Sole 13333
COMMERCE ONE INC DEL COM Common 200693109 1962 25000 SH Sole 25000
COMPUTER SCIENCES CORP COM Common 205363104 1114 15000 SH Sole 15000
CROWN CASTLE INTL CORP COM Common 228227104 621 20000 SH Sole 20000
Cisco Systems Common 17275R102 1657 30000 SH Sole 30000
DELANO TECHNOLOGY CORP COM Common 245701107 1575 100000 SH Sole 100000
DELL COMPUTER CORP COM Common 247025109 647 21000 SH Sole 21000
EFFICIENT NETWORKS INC COM Common 282056100 373 10000 SH Sole 10000
EGREETINGS NETWORK INC COM Common 282343102 207 195000 SH Sole 195000
Enron Common 293561106 2629 30000 SH Sole 30000
FIRST DATA CORP COM Common 319963104 977 25000 SH Sole 25000
FIRSTAR CORP NEW WIS COM Common 33763V109 1119 50000 SH Sole 50000
GIGANET LTD ORD Common M22013102 672 25000 SH Sole 25000
GOLDMAN SACHS GROUP COM Common 38141G104 1367 12000 SH Sole 12000
Gillette Common 375766102 834 27000 SH Sole 27000
HOMESTORE COM INC COM Common 437852106 1005 21500 SH Sole 21500
I2 TECHNOLOGIES INC COM Common 465754109 1907 10196 SH Sole 10196
IMANAGE INC COM Common 45245Y105 800 100000 SH Sole 100000
INTEGRATED INFORMATION COM Common 45817B103 594 125000 SH Sole 125000
International Business Common 459200101 1800 16000 SH Sole 16000
Machine
KANA COMMUNICATIONS COM Common 483600102 556 25000 SH Sole 25000
KEYNOTE SYS INC COM Common 493308100 669 25000 SH Sole 25000
MBNA CORP COM Common 55262L100 962 25000 SH Sole 25000
MERCK & CO INC COM Common 589331107 1414 19000 SH Sole 19000
Microsoft Common 594918104 905 15000 SH Sole 15000
NET2PHONE COM Common 64108N106 225 10000 SH Sole 10000
Netro Corp Common 64114R109 2962 50000 SH Sole 50000
ON SEMICONDUCTOR CORP COM Common 682189105 381 35000 SH Sole 35000
ONI SYSTEMS CORP COM Common 68273F103 863 10000 SH Sole 10000
PARADYNE NETWORKS INC COM Common 69911G107 149 27500 SH Sole 27500
PATIENT INFOSYSTEMS COM Common 702915109 5 10000 SH Sole 10000
PEPSICO INC COM Common 713448108 1288 28000 SH Sole 28000
PREVIEW SYS INC COM Common 741379101 710 75000 SH Sole 75000
PRIME RESPONSE INC COM Common 74158B100 320 80000 SH Sole 80000
<PAGE>
<PAGE>
Peoplesoft Common 712713106 279 10000 SH Sole 10000
Providan Financial Grp Common 74406A102 1460 11500 SH Sole 11500
SAGE INC COM Common 786632109 352 40000 SH Sole 40000
SCHWAB CHARLES CP NEW COM Common 808513105 958 27000 SH Sole 27000
SILVERSTREAM SOFTWARE COM Common 827907106 753 25000 SH Sole 25000
SOFTWARE TECHNOLOGIES COM Common 834040107 2060 90000 SH Sole 90000
SYCAMORE NETWORKS INC COM Common 871206108 216 2000 SH Sole 2000
Safeway Common 786514208 1074 23000 SH Sole 23000
TTM TECHNOLOGIES INC COM Common 87305R109 235 10000 SH Sole 10000
Trintech Group Limited Common 896682101 1711 85000 SH Sole 85000
USINTERNETWORKING INC COM Common 917311805 200 30000 SH Sole 30000
VARIAN SEMICONDUCTOR COM Common 922207105 374 10000 SH Sole 10000
VERSATA INC COM Common 925298101 4908 185224 SH Sole 185224
VIGNETTE CORP COM Common 926734104 2360 79000 SH Sole 79000
VITRIA TECHNOLOGY COM Common 92849Q104 1399 30000 SH Sole 30000
VODAFONE AIRTOUCH PLC Common 92857T107 1110 30000 SH Sole 30000
SPONSORE
WILLIAMS COS INC DEL COM Common 969457100 1267 30000 SH Sole 30000
Metromedia Fiber Common 591689104 729 30000 SH Sole 30000
</TABLE>
