The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ABBVIE INC COM 00287Y109 487 4,541 SH   SOLE   4,541 0 0
ABBVIE INC COM 00287Y109 10,833 101,100 SH Put SOLE   0 0 0
ABBVIE INC COM 00287Y109 2,207 20,600 SH Call SOLE   0 0 0
ACACIA COMMUNICATIONS INC COM 00401C108 7 100 SH Call SOLE   0 0 0
ACACIA COMMUNICATIONS INC COM 00401C108 14,658 200,900 SH Put SOLE   0 0 0
ACACIA COMMUNICATIONS INC COM 00401C108 11,995 164,400 SH   SOLE   164,400 0 0
ADVANCED MICRO DEVICES INC COM 007903107 0 400 SH Call SOLE   0 0 0
ADVANCED MICRO DEVICES INC COM 007903107 0 2,200 SH Put SOLE   0 0 0
AEROJET ROCKETDYNE HLDGS INC COM 007800105 0 100 SH Put SOLE   0 0 0
AES CORP COM 00130H105 24 1,000 SH   SOLE   1,000 0 0
ALTA EQUIPMENT GROUP INC COMMON STOCK 02128L106 2,721 275,436 SH   SOLE   275,436 0 0
ALTICE USA INC CL A 02156K103 1,322 34,900 SH   SOLE   34,900 0 0
ALTICE USA INC CL A 02156K103 1,511 39,900 SH Put SOLE   0 0 0
ALTICE USA INC CL A 02156K103 189 5,000 SH Call SOLE   0 0 0
AMAZON COM INC COM 023135106 80,772 24,800 SH   SOLE   24,800 0 0
AMAZON COM INC COM 023135106 3,908 1,200 SH Call SOLE   0 0 0
AQUABOUNTY TECHNOLOGIES INC COM NEW 03842K200 32 3,700 SH Call SOLE   0 0 0
AQUABOUNTY TECHNOLOGIES INC COM NEW 03842K200 146 16,700 SH Put SOLE   0 0 0
AQUABOUNTY TECHNOLOGIES INC COM NEW 03842K200 290 33,125 SH   SOLE   33,125 0 0
B. RILEY FINANCIAL INC COM 05580M108 19,375 438,145 SH   SOLE   438,145 0 0
BABCOCK & WILCOX ENTERPRISES COM 05614L209 756 215,378 SH   SOLE   215,378 0 0
BIOTELEMETRY INC COM 090672106 548 7,600 SH   SOLE   7,600 0 0
BIOTELEMETRY INC COM 090672106 620 8,600 SH Put SOLE   0 0 0
BRISTOL-MYERS SQUIBB CO COM 110122108 6 100 SH   SOLE   100 0 0
BRISTOL-MYERS SQUIBB CO COM 110122108 757 12,200 SH Call SOLE   0 0 0
BRISTOL-MYERS SQUIBB CO RIGHT 99/99/9999 110122157 7 10,100 SH   SOLE   10,100 0 0
CARRIER GLOBAL CORPORATION COM 14448C104 211 5,600 SH   SOLE   5,600 0 0
CELLULAR BIOMEDICINE GROUP I COM NEW 15117P102 116 6,300 SH   SOLE   6,300 0 0
CELLULAR BIOMEDICINE GROUP I COM NEW 15117P102 53 2,900 SH Call SOLE   0 0 0
CELLULAR BIOMEDICINE GROUP I COM NEW 15117P102 195 10,600 SH Put SOLE   0 0 0
CENTENE CORP DEL COM 15135B101 1,015 16,900 SH Call SOLE   0 0 0
CIGNA CORP NEW COM 125523100 1,541 7,400 SH Call SOLE   0 0 0
CIGNA CORP NEW COM 125523100 500 2,400 SH Put SOLE   0 0 0
CINER RESOURCES LP COM UNIT LTD 172464109 282 22,416 SH   SOLE   22,416 0 0
COLLECTORS UNIVERSE INC COM NEW 19421R200 1,103 14,622 SH   SOLE   14,622 0 0
COLLECTORS UNIVERSE INC COM NEW 19421R200 1,131 15,000 SH Call SOLE   0 0 0
COLLECTORS UNIVERSE INC COM NEW 19421R200 1,764 23,400 SH Put SOLE   0 0 0
CVS HEALTH CORP COM 126650100 0 2,500 SH Put SOLE   0 0 0
DISNEY WALT CO COM 254687106 91 500 SH   SOLE   500 0 0
EASTMAN CHEM CO COM 277432100 0 15,400 SH Put SOLE   0 0 0
EIDOS THERAPEUTICS INC COM 28249H104 1,101 8,370 SH   SOLE   8,370 0 0
EIDOS THERAPEUTICS INC COM 28249H104 355 2,700 SH Call SOLE   0 0 0
EIDOS THERAPEUTICS INC COM 28249H104 2,368 18,000 SH Put SOLE   0 0 0
EURONAV NV SHS B38564108 1,002 125,265 SH   SOLE   125,265 0 0
FISKER INC *W EXP 12/01/202 33813J114 486 98,716 SH   SOLE   98,716 0 0
FITBIT INC CL A 33812L102 33 4,800 SH   SOLE   4,800 0 0
FITBIT INC CL A 33812L102 33 4,800 SH Put SOLE   0 0 0
FRONT YD RESIDENTIAL CORP COM 35904G107 143 8,800 SH   SOLE   8,800 0 0
FRONT YD RESIDENTIAL CORP COM 35904G107 365 22,500 SH Put SOLE   0 0 0
FRONT YD RESIDENTIAL CORP COM 35904G107 149 9,200 SH Call SOLE   0 0 0
GENWORTH FINL INC COM CL A 37247D106 705 186,500 SH Call SOLE   0 0 0
GENWORTH FINL INC COM CL A 37247D106 1,024 270,900 SH Put SOLE   0 0 0
GENWORTH FINL INC COM CL A 37247D106 909 240,400 SH   SOLE   240,400 0 0
GREAT ELM GROUP INC COM NEW 39037G109 48 16,514 SH   SOLE   16,514 0 0
IDEANOMICS INC COM 45166V106 1 400 SH   SOLE   400 0 0
IDEANOMICS INC COM 45166V106 83 41,500 SH Call SOLE   0 0 0
IDEANOMICS INC COM 45166V106 3 1,300 SH Put SOLE   0 0 0
INTERNATIONAL FLAVORS&FRAGRA COM 459506101 0 5,000 SH Call SOLE   0 0 0
INTERNATIONAL FLAVORS&FRAGRA COM 459506101 0 5,000 SH Put SOLE   0 0 0
INVESCO DB MULTI-SECTOR COMM AGRICULTURE FD 46140H106 56 3,500 SH   SOLE   3,500 0 0
INVESTORS BANCORP INC NEW COM 46146L101 0 1 SH   SOLE   1 0 0
ISHARES TR RUSSELL 2000 ETF 464287655 1,098 5,601 SH   SOLE   5,601 0 0
ISHARES TR TIPS BD ETF 464287176 26 200 SH   SOLE   200 0 0
KANSAS CITY SOUTHERN COM NEW 485170302 0 4,000 SH Put SOLE   0 0 0
NATIONAL BANKSHARES INC VA COM 634865109 5 173 SH   SOLE   173 0 0
NATIONAL GEN HLDGS CORP COM 636220303 697 20,400 SH Put SOLE   0 0 0
NATIONAL GEN HLDGS CORP COM 636220303 171 5,000 SH   SOLE   5,000 0 0
NATIONAL HLDGS CORP COM NEW 636375206 5,241 1,729,809 SH   SOLE   1,729,809 0 0
NAVISTAR INTL CORP NEW COM 63934E108 22 500 SH Call SOLE   0 0 0
NAVISTAR INTL CORP NEW COM 63934E108 224 5,100 SH Put SOLE   0 0 0
NAVISTAR INTL CORP NEW COM 63934E108 189 4,300 SH   SOLE   4,300 0 0
NIKOLA CORP COM 654110105 172 11,300 SH   SOLE   11,300 0 0
NIO INC SPON ADS 62914V106 0 400 SH Call SOLE   0 0 0
NIO INC SPON ADS 62914V106 0 1,200 SH Put SOLE   0 0 0
OCCIDENTAL PETE CORP COM 674599105 211 12,186 SH   SOLE   12,186 0 0
OCCIDENTAL PETE CORP COM 674599105 14,139 816,800 SH Call SOLE   0 0 0
OCCIDENTAL PETE CORP COM 674599105 649 37,500 SH Put SOLE   0 0 0
OCCIDENTAL PETE CORP *W EXP 08/03/202 674599162 47 6,897 SH   SOLE   6,897 0 0
OTIS WORLDWIDE CORP COM 68902V107 189 2,800 SH   SOLE   2,800 0 0
PALANTIR TECHNOLOGIES INC CL A 69608A108 89 3,800 SH   SOLE   3,800 0 0
PLURALSIGHT INC COM CL A 72941B106 262 12,500 SH   SOLE   12,500 0 0
PLURALSIGHT INC COM CL A 72941B106 415 19,800 SH Put SOLE   0 0 0
PRECIGEN INC COM 74017N105 329 32,300 SH Call SOLE   0 0 0
PREVAIL THERAPEUTICS INC COM 74140Y101 4,967 215,300 SH Put SOLE   0 0 0
PREVAIL THERAPEUTICS INC COM 74140Y101 794 34,400 SH Call SOLE   0 0 0
PREVAIL THERAPEUTICS INC COM 74140Y101 2,833 122,800 SH   SOLE   122,800 0 0
QUANTUM CORP COM NEW 747906501 2,215 361,987 SH   SOLE   361,987 0 0
QUANTUMSCAPE CORP COM CL A 74767V109 228 2,700 SH   SOLE   2,700 0 0
RAYTHEON TECHNOLOGIES CORP COM 75513E101 129 1,800 SH Call SOLE   0 0 0
RAYTHEON TECHNOLOGIES CORP COM 75513E101 1,766 24,700 SH Put SOLE   0 0 0
RAYTHEON TECHNOLOGIES CORP COM 75513E101 737 10,300 SH   SOLE   10,300 0 0
REALPAGE INC COM 75606N109 2,809 32,200 SH   SOLE   32,200 0 0
REALPAGE INC COM 75606N109 2,312 26,500 SH Call SOLE   0 0 0
REALPAGE INC COM 75606N109 3,228 37,000 SH Put SOLE   0 0 0
ROMAN DBDR TECH ACQUISITION *W EXP 10/31/202 77584N119 564 462,767 SH   SOLE   462,767 0 0
SCORPIO TANKERS INC SHS Y7542C130 43 3,865 SH   SOLE   3,865 0 0
SEACOR HOLDINGS INC COM 811904101 207 5,000 SH   SOLE   5,000 0 0
SEACOR HOLDINGS INC COM 811904101 207 5,000 SH Put SOLE   0 0 0
SEAPORT GLOBAL ACQUISITN COR UNIT 99/99/9999 812227205 981 93,873 SH   SOLE   93,873 0 0
SELECT INTERIOR CONCEPTS INC CL A 816120307 641 89,640 SH   SOLE   89,640 0 0
SELECT SECTOR SPDR TR SBI INT-INDS 81369Y704 9,112 102,900 SH   SOLE   102,900 0 0
SOFTWARE ACQUISITN GRUP INC *W EXP 09/17/202 83407F119 274 202,922 SH   SOLE   202,922 0 0
SOGOU INC ADR REPSTG A 83409V104 531 65,100 SH Put SOLE   0 0 0
SOGOU INC ADR REPSTG A 83409V104 62 7,600 SH   SOLE   7,600 0 0
SOGOU INC ADR REPSTG A 83409V104 63 7,700 SH Call SOLE   0 0 0
SONIM TECHNOLOGIES INC COM 83548F101 2,577 3,559,345 SH   SOLE   3,559,345 0 0
SPARTACUS ACQUISITION CORP *W EXP 10/31/202 84677L117 376 335,565 SH   SOLE   335,565 0 0
SPDR DOW JONES INDL AVERAGE UT SER 1 78467X109 4,893 16,000 SH   SOLE   16,000 0 0
SPORTSMANS WHSE HLDGS INC COM 84920Y106 30 1,700 SH   SOLE   1,700 0 0
SPORTSMANS WHSE HLDGS INC COM 84920Y106 35 2,000 SH Put SOLE   0 0 0
SPORTSMANS WHSE HLDGS INC COM 84920Y106 18 1,000 SH Call SOLE   0 0 0
TESLA INC COM 88160R101 47,986 68,000 SH Call SOLE   0 0 0
TESLA INC COM 88160R101 11,361 16,100 SH Put SOLE   0 0 0
TESLA INC COM 88160R101 212 300 SH   SOLE   300 0 0
TIFFANY & CO NEW COM 886547108 42,866 326,100 SH Call SOLE   0 0 0
TIFFANY & CO NEW COM 886547108 39,987 304,200 SH Put SOLE   0 0 0
TIFFANY & CO NEW COM 886547108 1,170 8,900 SH   SOLE   8,900 0 0
UNISYS CORP COM NEW 909214306 22 1,100 SH   SOLE   1,100 0 0
VARIAN MED SYS INC COM 92220P105 18 100 SH   SOLE   100 0 0
VARIAN MED SYS INC COM 92220P105 35 200 SH Put SOLE   0 0 0
VELODYNE LIDAR INC COM 92259F101 313 13,700 SH   SOLE   13,700 0 0
VIRGIN GALACTIC HOLDINGS INC COM 92766K106 0 600 SH Call SOLE   0 0 0
XENCOR INC COM 98401F105 7 152 SH   SOLE   152 0 0
XENCOR INC COM 98401F105 44 1,000 SH Put SOLE   0 0 0
XPERI HOLDING CORP COM 98390M103 2,434 116,454 SH   SOLE   116,454 0 0
ZIOPHARM ONCOLOGY INC COM 98973P101 13 4,976 SH   SOLE   4,976 0 0
ZIOPHARM ONCOLOGY INC COM 98973P101 97 38,500 SH Call SOLE   0 0 0
ZOOM VIDEO COMMUNICATIONS IN CL A 98980L101 270 800 SH   SOLE   800 0 0