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

                                    Form 13F

                              Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: June 30, 2011

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:    Cowen Group, Inc.
Address: 599 Lexington Avenue, 2Oth Flr.
         New York, NY  10022

13F File Number:  028-NEW

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:      Owen Littman
Title:     General Counsel
Phone:     212-201-4841

Signature, Place, and Date of Signing:

 /s/ Owen Littman     New York, NY     August 15, 2011

Report Type (Check only one.):

[ X]         13F HOLDINGS REPORT.

[  ]         13F NOTICE.

[  ]         13F COMBINATION REPORT.

FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 5 Form 13F Information Table Entry Total: 326 Form 13F Information Table Value Total: $827,275 (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional managers with respect to which this report is filed, other than the manager filing this report. No. 13F File Number Name 05 028-NEW Cowen and Company LLC 01 028-06309 Ramius LLC 02 028-10674 Ramius Advisors, LLC 03 028-14361 Ramius Alternative Solutions LLC 04 028-10501 Cowen Capital LLC

FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- ABOVENET INC COM 00374N107 1762 25000 SH CALL DEFINED 02 25000 0 0 ADVANCED ANALOGIC TECHNOLOGI COM 00752J108 930 153667 SH DEFINED 02 153667 0 0 AGL RES INC COM 001204106 1706 41910 SH DEFINED 02 41910 0 0 AGL RES INC COM 001204106 6 147 SH DEFINED 05 147 0 0 AGRIUM INC COM 008916108 709 8074 SH DEFINED 04 8074 0 0 AGRIUM INC COM 008916108 1843 21000 SH PUT DEFINED 04 21000 0 0 ALCOA INC COM 013817101 4758 300000 SH CALL DEFINED 04 300000 0 0 ALLERGAN INC COM 018490102 1457 17500 SH CALL DEFINED 05 17500 0 0 ALLIED WRLD ASSUR COM HLDG A SHS H01531104 288 5000 SH CALL DEFINED 02 5000 0 0 AMGEN INC COM 031162100 414 7098 SH DEFINED 04 7098 0 0 AMGEN INC NOTE 0.375% 2/0 031162AQ3 684 680000 PRN DEFINED 05 680000 0 0 AMYLIN PHARMACEUTICALS INC COM 032346108 200 15000 SH CALL DEFINED 05 15000 0 0 ARCH COAL INC COM 039380100 35 1331 SH DEFINED 05 1331 0 0 ARCH COAL INC COM 039380100 1016 38100 SH CALL DEFINED 05 38100 0 0 ARIAD PHARMACEUTICALS INC COM 04033A100 1416 125000 SH DEFINED 02 125000 0 0 AUTOZONE INC COM 053332102 886 3002 SH DEFINED 05 3002 0 0 AUTOZONE INC COM 053332102 737 2500 SH CALL DEFINED 05 2500 0 0 AVANIR PHARMACEUTICALS INC CL A NEW 05348P401 164 48600 SH PUT DEFINED 05 48600 0 0 AVANIR PHARMACEUTICALS INC CL A NEW 05348P401 151 45000 SH DEFINED 05 45000 0 0 AVANIR PHARMACEUTICALS INC CL A NEW 05348P401 458 136100 SH CALL DEFINED 05 136100 0 0 BALL CORP COM 058498106 5958 154900 SH CALL DEFINED 05 154900 0 0 BARCLAYS BK PLC DJUBS CMDT ETN36 06738C778 10386 219900 SH DEFINED 03 219900 0 0 BARCLAYS BK PLC IPATH S&P MT ETN 06740C519 9559 189768 SH DEFINED 03 189768 0 0 BARCLAYS BK PLC IPTH S&P VIX NEW 06740C261 370 17500 SH DEFINED 02 17500 0 0 BARCLAYS BK PLC IPTH S&P VIX NEW 06740C261 1786 84500 SH DEFINED 03 84500 0 0 BARCLAYS BK PLC IPTH S&P VIX NEW 06740C261 846 40000 SH CALL DEFINED 02 40000 0 0 BARNES & NOBLE INC COM 067774109 1245 75100 SH PUT DEFINED 02 75100 0 0 BIOGEN IDEC INC COM 09062X103 3165 29600 SH CALL DEFINED 04 29600 0 0 BIONOVO INC COM NEW 090643206 344 450000 SH DEFINED 05 450000 0 0 BIONOVO INC COM NEW 090643206 342 447048 SH DEFINED 02 447048 0 0 BJS WHOLESALE CLUB INC COM 05548J106 2130 42300 SH PUT DEFINED 02 42300 0 0 BJS WHOLESALE CLUB INC COM 05548J106 1511 30000 SH DEFINED 02 30000 0 0 BJS WHOLESALE CLUB INC COM 05548J106 1536 30500 SH CALL DEFINED 02 30500 0 0 BLACKBOARD INC COM 091935502 29 679 SH DEFINED 05 679 0 0 BLACKBOARD INC COM 091935502 334 7700 SH CALL DEFINED 02 7700 0 0 BMC SOFTWARE INC COM 055921100 797 14566 SH DEFINED 04 14566 0 0 BUCYRUS INTL INC NEW COM 118759109 10644 116124 SH DEFINED 02 116124 0 0 BUCYRUS INTL INC NEW COM 118759109 26160 285400 SH CALL DEFINED 02 285400 0 0 BUCYRUS INTL INC NEW COM 118759109 3016 32900 SH PUT DEFINED 02 32900 0 0 CADENCE PHARMACEUTICALS INC COM 12738T100 43 4724 SH DEFINED 05 4724 0 0 CADENCE PHARMACEUTICALS INC COM 12738T100 828 90000 SH CALL DEFINED 05 90000 0 0 CALIFORNIA PIZZA KITCHEN INC COM 13054D109 4638 251102 SH DEFINED 02 251102 0 0 CAMECO CORP COM 13321L108 1043 39582 SH DEFINED 04 39582 0 0 CAMECO CORP COM 13321L108 1697 64400 SH PUT DEFINED 04 64400 0 0 CAPITAL ONE FINL CORP COM 14040H105 261 5050 SH DEFINED 02 5050 0 0 CAPITAL ONE FINL CORP COM 14040H105 1333 25800 SH DEFINED 05 25800 0 0 CAPITAL ONE FINL CORP COM 14040H105 8690 168200 SH CALL DEFINED 05 168200 0 0 CAPITAL ONE FINL CORP COM 14040H105 12075 233700 SH PUT DEFINED 05 233700 0 0 CEPHALON INC COM 156708109 7 82 SH DEFINED 05 82 0 0 CEPHALON INC COM 156708109 15277 191200 SH CALL DEFINED 02 191200 0 0 CEPHALON INC COM 156708109 6016 75295 SH DEFINED 02 75295 0 0 CEPHALON INC COM 156708109 232 2900 SH CALL DEFINED 05 2900 0 0 CHESAPEAKE ENERGY CORP COM 165167107 3444 116000 SH CALL DEFINED 04 116000 0 0 CITIGROUP INC COM NEW 172967424 12492 300000 SH CALL DEFINED 04 300000 0 0 CLEVELAND BIOLABS INC COM 185860103 808 236900 SH DEFINED 02 236900 0 0 COMPUTER PROGRAMS & SYS INC COM 205306103 647 10200 SH DEFINED 02 10200 0 0 COMPUTER PROGRAMS & SYS INC COM 205306103 1270 20000 SH CALL DEFINED 02 20000 0 0 CONOCOPHILLIPS COM 20825C104 7519 100000 SH PUT DEFINED 04 100000 0 0 CONOCOPHILLIPS COM 20825C104 0 1 SH DEFINED 05 1 0 0 CONOCOPHILLIPS COM 20825C104 13760 183000 SH CALL DEFINED 04 183000 0 0 CONSTELLATION ENERGY PRTNR L COM UNIT LLC B 21038E101 386 149720 SH DEFINED 02 149720 0 0 CONTINUCARE CORP COM 212172100 1988 321700 SH DEFINED 02 321700 0 0 CONVERTED ORGANICS INC *W EXP 12/31/201 21254S131 10 374672 SH DEFINED 02 374672 0 0 COWEN GROUP INC NEW CL A 223622101 332 88334 SH DEFINED 02 88334 0 0 COWEN GROUP INC NEW CL A 223622101 1 370 SH DEFINED 05 370 0 0 CREDIT SUISSE NASSAU BRH ETN IDX-LKD 20 22542D845 13144 630709 SH DEFINED 03 630709 0 0 CROWN HOLDINGS INC COM 228368106 4134 106500 SH CALL DEFINED 05 106500 0 0 CUBIST PHARMACEUTICALS INC NOTE 2.500%11/0 229678AD9 2798 2000000 PRN DEFINED 05 2000000 0 0 CURRENCYSHARES AUSTRALIAN DL AUSTRALIAN DOL 23129U101 216 2000 SH CALL DEFINED 04 2000 0 0 CURRENCYSHS BRIT POUND STER BRIT POUND STE 23129S106 1000 6277 SH DEFINED 04 6277 0 0 CURRENCYSHS JAPANESE YEN TR JAPANESE YEN 23130A102 1958 15978 SH DEFINED 04 15978 0 0 D R HORTON INC COM 23331A109 970 84200 SH PUT DEFINED 05 84200 0 0 DELCATH SYS INC COM 24661P104 11 2152 SH DEFINED 04 2152 0 0 DELCATH SYS INC COM 24661P104 116 22500 SH DEFINED 05 22500 0 0 DELCATH SYS INC COM 24661P104 5 1000 SH CALL DEFINED 04 1000 0 0 DELCATH SYS INC COM 24661P104 387 75000 SH CALL DEFINED 05 75000 0 0 DELCATH SYS INC COM 24661P104 322 62400 SH PUT DEFINED 05 62400 0 0 DENDREON CORP COM 24823Q107 8 196 SH DEFINED 05 196 0 0 DENDREON CORP COM 24823Q107 2564 65000 SH PUT DEFINED 05 65000 0 0 DENDREON CORP NOTE 2.875% 1/1 24823QAC1 1101 1000000 PRN DEFINED 05 1000000 0 0 DEVELOPERS DIVERSIFIED RLTY NOTE 1.750%11/1 251591AX1 1050 1000000 PRN DEFINED 05 1000000 0 0 DEVON ENERGY CORP NEW COM 25179M103 1119 14200 SH CALL DEFINED 05 14200 0 0 DISNEY WALT CO COM DISNEY 254687106 6637 170000 SH CALL DEFINED 04 170000 0 0 DYNAVAX TECHNOLOGIES CORP COM 268158102 550 200000 SH DEFINED 02 200000 0 0 DYNAVAX TECHNOLOGIES CORP COM 268158102 44 16000 SH DEFINED 05 16000 0 0 DYNAVAX TECHNOLOGIES CORP COM 268158102 44 16000 SH PUT DEFINED 05 16000 0 0 DYNEGY INC DEL COM 26817G300 656 106000 SH PUT DEFINED 02 106000 0 0 EASTMAN CHEM CO COM 277432100 13402 131300 SH CALL DEFINED 05 131300 0 0 EL PASO CORP COM 28336L109 1166 57700 SH CALL DEFINED 04 57700 0 0 EL PASO CORP COM 28336L109 1166 57700 SH PUT DEFINED 04 57700 0 0 ENERGY XXI (BERMUDA) LTD USD UNRS SHS G10082140 7315 220200 SH DEFINED 02 220200 0 0 ENERGY XXI (BERMUDA) LTD USD UNRS SHS G10082140 40 1200 SH DEFINED 04 1200 0 0 ENERGY XXI (BERMUDA) LTD USD UNRS SHS G10082140 831 25000 SH CALL DEFINED 02 25000 0 0 EXCO RESOURCES INC COM 269279402 177 10000 SH CALL DEFINED 02 10000 0 0 FIRST TR VALUE LINE DIVID IN SHS 33734H106 332 20606 SH DEFINED 05 20606 0 0 FORD MTR CO DEL *W EXP 01/01/201 345370134 20 3800 SH DEFINED 05 3800 0 0 FORD MTR CO DEL COM PAR $0.01 345370860 4138 300076 SH DEFINED 04 300076 0 0 FORD MTR CO DEL COM PAR $0.01 345370860 8274 600000 SH CALL DEFINED 04 600000 0 0 FORD MTR CO DEL COM PAR $0.01 345370860 11600 841200 SH PUT DEFINED 04 841200 0 0 GENERAL MLS INC COM 370334104 11166 300000 SH PUT DEFINED 04 300000 0 0 GERON CORP COM 374163103 12 3000 SH DEFINED 05 3000 0 0 GERON CORP COM 374163103 110 27500 SH CALL DEFINED 05 27500 0 0 GILEAD SCIENCES INC COM 375558103 1213 29300 SH DEFINED 05 29300 0 0 GILEAD SCIENCES INC COM 375558103 1483 35800 SH CALL DEFINED 05 35800 0 0 GILEAD SCIENCES INC COM 375558103 828 20000 SH PUT DEFINED 05 20000 0 0 GOLDCORP INC NEW COM 380956409 1566 32450 SH DEFINED 04 32450 0 0 GOLDMAN SACHS GROUP INC COM 38141G104 3327 25000 SH PUT DEFINED 02 25000 0 0 GRAHAM PACKAGING CO INC COM 384701108 3123 123839 SH DEFINED 02 123839 0 0 GSI COMMERCE INC COM 36238G102 2603 88000 SH CALL DEFINED 02 88000 0 0 HALLIBURTON CO COM 406216101 255 5000 SH PUT DEFINED 04 5000 0 0 HALLIBURTON CO COM 406216101 5355 105000 SH CALL DEFINED 04 105000 0 0 HARTFORD FINL SVCS GROUP INC COM 416515104 185 7000 SH DEFINED 05 7000 0 0 HARTFORD FINL SVCS GROUP INC COM 416515104 2460 93300 SH PUT DEFINED 05 93300 0 0 HUMAN GENOME SCIENCES INC COM 444903108 1963 80000 SH CALL DEFINED 05 80000 0 0 INDEXIQ ETF TR US RL EST SMCP 45409B628 372 17871 SH DEFINED 05 17871 0 0 INTEL CORP SDCV 2.950%12/1 458140AD2 1101 1050000 PRN DEFINED 05 1050000 0 0 INTERNATIONAL BUSINESS MACHS COM 459200101 858 5000 SH DEFINED 02 5000 0 0 INTERNATIONAL BUSINESS MACHS COM 459200101 6 35 SH DEFINED 05 35 0 0 IRON MTN INC COM 462846106 102 3000 SH DEFINED 05 3000 0 0 IRON MTN INC COM 462846106 511 15000 SH PUT DEFINED 05 15000 0 0 ISHARES GOLD TRUST ISHARES 464285105 476 32500 SH DEFINED 02 32500 0 0 ISHARES INC MSCI AUSTRALIA 464286103 2 70 SH DEFINED 04 70 0 0 ISHARES INC MSCI AUSTRIA INV 464286202 1406 61763 SH DEFINED 04 61763 0 0 ISHARES INC MSCI BELG INVEST 464286301 12 816 SH DEFINED 04 816 0 0 ISHARES INC MSCI BRIC INDX 464286657 6714 140458 SH DEFINED 03 140458 0 0 ISHARES INC MSCI CDA INDEX 464286509 317 10000 SH DEFINED 02 10000 0 0 ISHARES INC MSCI CDA INDEX 464286509 430 13578 SH DEFINED 04 13578 0 0 ISHARES INC MSCI GERMAN 464286806 8 299 SH DEFINED 04 299 0 0 ISHARES INC MSCI HONG KONG 464286871 1200 64794 SH DEFINED 04 64794 0 0 ISHARES INC MSCI ITALY 464286855 485 27524 SH DEFINED 04 27524 0 0 ISHARES INC MSCI JAPAN 464286848 166 15889 SH DEFINED 04 15889 0 0 ISHARES INC MSCI MEX INVEST 464286822 192 3063 SH DEFINED 04 3063 0 0 ISHARES INC MSCI NETHR INVES 464286814 216 10021 SH DEFINED 04 10021 0 0 ISHARES INC MSCI SINGAPORE 464286673 583 42479 SH DEFINED 04 42479 0 0 ISHARES INC MSCI SINGAPORE 464286673 4 300 SH CALL DEFINED 04 300 0 0 ISHARES INC MSCI SPAIN 464286764 3796 90092 SH DEFINED 04 90092 0 0 ISHARES INC MSCI STH AFRCA 464286780 1385 19485 SH DEFINED 04 19485 0 0 ISHARES INC MSCI SWEDEN 464286756 101 3174 SH DEFINED 04 3174 0 0 ISHARES INC MSCI SWITZERLD 464286749 179 6744 SH DEFINED 04 6744 0 0 ISHARES INC MSCI TAIWAN 464286731 759 50000 SH DEFINED 04 50000 0 0 ISHARES S&P GSCI COMMODITY I UNIT BEN INT 46428R107 2741 80352 SH DEFINED 03 80352 0 0 ISHARES SILVER TRUST ISHARES 46428Q109 338 10000 SH DEFINED 02 10000 0 0 ISHARES TR BARCLYS TIPS BD 464287176 1067 9643 SH DEFINED 04 9643 0 0 ISHARES TR DJ US REAL EST 464287739 10 165 SH DEFINED 04 165 0 0 ISHARES TR FTSE CHINA25 IDX 464287184 2631 61252 SH DEFINED 04 61252 0 0 ISHARES TR HIGH YLD CORP 464288513 38686 423681 SH DEFINED 03 423681 0 0 ISHARES TR MSCI EAFE INDEX 464287465 1210 20115 SH DEFINED 03 20115 0 0 ISHARES TR MSCI EMERG MKT 464287234 952 20000 SH CALL DEFINED 04 20000 0 0 ISHARES TR MSCI EMERG MKT 464287234 9520 200000 SH PUT DEFINED 02 200000 0 0 ISHARES TR MSCI EMERG MKT 464287234 714 15000 SH PUT DEFINED 04 15000 0 0 ISHARES TR MSCI PERU CAP 464289842 1184 31460 SH DEFINED 04 31460 0 0 ISHARES TR RUSSELL 2000 464287655 19458 235000 SH PUT DEFINED 02 235000 0 0 ISHARES TR S&P SMLCAP 600 464287804 527 7186 SH DEFINED 05 7186 0 0 ISHARES TR US PFD STK IDX 464288687 40 1000 SH CALL DEFINED 04 1000 0 0 ISHARES TR US PFD STK IDX 464288687 40 1000 SH PUT DEFINED 04 1000 0 0 JOHNSON & JOHNSON COM 478160104 241 3630 SH DEFINED 02 3630 0 0 JOHNSON & JOHNSON COM 478160104 0 3 SH DEFINED 05 3 0 0 JPMORGAN CHASE & CO COM 46625H100 1228 30000 SH CALL DEFINED 04 30000 0 0 JPMORGAN CHASE & CO COM 46625H100 4606 112500 SH CALL DEFINED 05 112500 0 0 K V PHARMACEUTICAL CO CL A 482740206 608 223500 SH DEFINED 02 223500 0 0 KENDLE INTERNATIONAL INC COM 48880L107 2666 176762 SH DEFINED 02 176762 0 0 KERYX BIOPHARMACEUTICALS INC COM 492515101 78 16400 SH CALL DEFINED 05 16400 0 0 KROGER CO COM 501044101 578 23306 SH DEFINED 04 23306 0 0 L-1 IDENTITY SOLUTIONS INC COM 50212A106 247 21000 SH PUT DEFINED 02 21000 0 0 L-1 IDENTITY SOLUTIONS INC COM 50212A106 588 50000 SH DEFINED 02 50000 0 0 LAM RESEARCH CORP COM 512807108 368 8300 SH DEFINED 05 8300 0 0 LAWSON SOFTWARE INC NEW COM 52078P102 23920 2131891 SH DEFINED 02 2131891 0 0 LIGHTBRIDGE CORP COM 53224K104 531 147900 SH CALL DEFINED 02 147900 0 0 LOWES COS INC COM 548661107 291 12500 SH DEFINED 05 12500 0 0 LUBRIZOL CORP COM 549271104 5693 42400 SH DEFINED 02 42400 0 0 LUBRIZOL CORP COM 549271104 39139 291500 SH CALL DEFINED 02 291500 0 0 LUBRIZOL CORP COM 549271104 22182 165200 SH PUT DEFINED 02 165200 0 0 MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 237 3960 SH DEFINED 02 3960 0 0 MAKO SURGICAL CORP COM 560879108 2200 74000 SH CALL DEFINED 05 74000 0 0 MAKO SURGICAL CORP COM 560879108 595 20000 SH PUT DEFINED 05 20000 0 0 MANNKIND CORP COM 56400P201 351 92400 SH CALL DEFINED 05 92400 0 0 MARKET VECTORS ETF TR AGRIBUS ETF 57060U605 293 5440 SH DEFINED 04 5440 0 0 MARKET VECTORS ETF TR AGRIBUS ETF 57060U605 2152 40000 SH PUT DEFINED 05 40000 0 0 MARKET VECTORS ETF TR LAT AM SML CAP 57060U530 118 3891 SH DEFINED 04 3891 0 0 MARKET VECTORS ETF TR URAN NUCLR ENRGY 57060U704 65 3020 SH DEFINED 04 3020 0 0 MARKET VECTORS ETF TR VIETNAM ETF 57060U761 180 8664 SH DEFINED 04 8664 0 0 MARSHALL & ILSLEY CORP NEW COM 571837103 3732 468200 SH DEFINED 02 468200 0 0 MCDONALDS CORP COM 580135101 2783 33000 SH CALL DEFINED 05 33000 0 0 MCMORAN EXPLORATION CO NOTE 5.250%10/0 582411AE4 1524 1300000 PRN DEFINED 02 1300000 0 0 MEAD JOHNSON NUTRITION CO COM 582839106 535 7926 SH DEFINED 04 7926 0 0 MEDTRONIC INC COM 585055106 135 3501 SH DEFINED 05 3501 0 0 MEDTRONIC INC COM 585055106 771 20000 SH CALL DEFINED 05 20000 0 0 MOBILE TELESYSTEMS OJSC SPONSORED ADR 607409109 349 18365 SH DEFINED 04 18365 0 0 MOSAIC CO NEW COM 61945C103 1355 20000 SH CALL DEFINED 04 20000 0 0 NATIONAL SEMICONDUCTOR CORP COM 637640103 2461 100000 SH CALL DEFINED 04 100000 0 0 NATIONAL SEMICONDUCTOR CORP COM 637640103 3865 157060 SH DEFINED 02 157060 0 0 NATIONAL SEMICONDUCTOR CORP COM 637640103 227 9234 SH DEFINED 04 9234 0 0 NATIONAL SEMICONDUCTOR CORP COM 637640103 6153 250000 SH CALL DEFINED 02 250000 0 0 NESS TECHNOLOGIES INC COM 64104X108 1769 233674 SH DEFINED 02 233674 0 0 NIKE INC CL B 654106103 666 7400 SH CALL DEFINED 04 7400 0 0 NVIDIA CORP COM 67066G104 575 36068 SH DEFINED 04 36068 0 0 NVIDIA CORP COM 67066G104 1594 100000 SH PUT DEFINED 04 100000 0 0 OIL SVC HOLDRS TR DEPOSTRY RCPT 678002106 1 7 SH DEFINED 05 7 0 0 OIL SVC HOLDRS TR DEPOSTRY RCPT 678002106 532 3500 SH CALL DEFINED 04 3500 0 0 OIL SVC HOLDRS TR DEPOSTRY RCPT 678002106 76 500 SH PUT DEFINED 04 500 0 0 OPTIMER PHARMACEUTICALS INC COM 68401H104 932 78400 SH CALL DEFINED 05 78400 0 0 OPTIMER PHARMACEUTICALS INC COM 68401H104 378 31800 SH PUT DEFINED 05 31800 0 0 OREXIGEN THERAPEUTICS INC COM 686164104 0 200 SH DEFINED 04 200 0 0 OREXIGEN THERAPEUTICS INC COM 686164104 45 28200 SH PUT DEFINED 05 28200 0 0 OREXIGEN THERAPEUTICS INC COM 686164104 1 700 SH CALL DEFINED 04 700 0 0 ORTHOVITA INC COM 68750U102 124 32286 SH DEFINED 02 32286 0 0 PACKAGING CORP AMER COM 695156109 5357 191400 SH CALL DEFINED 05 191400 0 0 PDL BIOPHARMA INC COM 69329Y104 29 5000 SH DEFINED 05 5000 0 0 PDL BIOPHARMA INC COM 69329Y104 626 106700 SH CALL DEFINED 05 106700 0 0 PDL BIOPHARMA INC NOTE 3.750% 5/0 69329YAC8 980 1000000 PRN DEFINED 05 1000000 0 0 PFIZER INC COM 717081103 885 42983 SH DEFINED 04 42983 0 0 PFIZER INC COM 717081103 134 6500 SH DEFINED 05 6500 0 0 PHARMATHENE INC COM 71714G102 533 181300 SH CALL DEFINED 02 181300 0 0 PHILIP MORRIS INTL INC COM 718172109 4027 60300 SH PUT DEFINED 04 60300 0 0 PHILIP MORRIS INTL INC COM 718172109 3412 51100 SH CALL DEFINED 04 51100 0 0 PHILIP MORRIS INTL INC COM 718172109 1373 20556 SH DEFINED 04 20556 0 0 PHILIP MORRIS INTL INC COM 718172109 0 2 SH DEFINED 05 2 0 0 PLUG POWER INC COM NEW 72919P202 435 195960 SH DEFINED 02 195960 0 0 POWERSHARES DB G10 CURCY HAR COM UT BEN INT 73935Y102 1303 52586 SH DEFINED 03 52586 0 0 POWERSHARES ETF TR II S&P500 HGH BET 73937B829 105 4490 SH DEFINED 05 4490 0 0 POWERSHARES ETF TR II S&P500 LOW VOL 73937B779 382 15248 SH DEFINED 05 15248 0 0 POWERSHARES ETF TRUST II BLNCD GRWTH PORT 73936Q405 56 4251 SH DEFINED 05 4251 0 0 POWERSHARES ETF TRUST II GRW & INC PORT 73936Q504 391 29515 SH DEFINED 05 29515 0 0 POWERSHS DB MULTI SECT COMM DB AGRICULT FD 73936B408 3841 121000 SH DEFINED 03 121000 0 0 PRAXAIR INC COM 74005P104 10 91 SH DEFINED 05 91 0 0 PRAXAIR INC COM 74005P104 5441 50200 SH CALL DEFINED 05 50200 0 0 PRE PAID LEGAL SVCS INC COM 740065107 672 10100 SH DEFINED 02 10100 0 0 PRIMUS GUARANTY LTD SHS G72457107 1026 195500 SH DEFINED 04 195500 0 0 PROCERA NETWORKS INC COM NEW 74269U203 644 60000 SH DEFINED 02 60000 0 0 PROSHARES TR PSHS ULSHT SP500 74347R883 310 15000 SH DEFINED 02 15000 0 0 QUALCOMM INC COM 747525103 6082 107100 SH CALL DEFINED 04 107100 0 0 QUALCOMM INC COM 747525103 3402 59900 SH PUT DEFINED 04 59900 0 0 QUANTUM FUEL SYS TECH WORLDW COM NEW 74765E208 723 208366 SH DEFINED 02 208366 0 0 RAMBUS INC DEL NOTE 5.000% 6/1 750917AC0 1121 1000000 PRN DEFINED 05 1000000 0 0 ROCKWOOD HLDGS INC COM 774415103 39 700 SH PUT DEFINED 05 700 0 0 ROCKWOOD HLDGS INC COM 774415103 5645 102100 SH CALL DEFINED 05 102100 0 0 RURAL / METRO CORP COM 781748108 333 19308 SH DEFINED 02 19308 0 0 SALIX PHARMACEUTICALS INC COM 795435106 996 25000 SH CALL DEFINED 05 25000 0 0 SARA LEE CORP COM 803111103 75 3933 SH DEFINED 04 3933 0 0 SARA LEE CORP COM 803111103 1899 100000 SH PUT DEFINED 04 100000 0 0 SAVIENT PHARMACEUTICALS INC COM 80517Q100 187 25026 SH DEFINED 05 25026 0 0 SAVIENT PHARMACEUTICALS INC COM 80517Q100 796 106300 SH CALL DEFINED 05 106300 0 0 SAVIENT PHARMACEUTICALS INC NOTE 4.750% 2/0 80517QAA8 75 75000 PRN DEFINED 05 75000 0 0 SCIENTIFIC GAMES CORP CL A 80874P109 3385 327396 SH DEFINED 02 327396 0 0 SCIENTIFIC GAMES CORP CL A 80874P109 5 453 SH DEFINED 05 453 0 0 SEAGATE TECHNOLOGY PLC SHS G7945M107 727 45000 SH CALL DEFINED 04 45000 0 0 SELECT SECTOR SPDR TR SBI CONS DISCR 81369Y407 8160 202928 SH DEFINED 03 202928 0 0 SELECT SECTOR SPDR TR SBI CONS STPLS 81369Y308 367 11754 SH DEFINED 03 11754 0 0 SELECT SECTOR SPDR TR SBI HEALTHCARE 81369Y209 1299 36563 SH DEFINED 03 36563 0 0 SELECT SECTOR SPDR TR SBI INT-ENERGY 81369Y506 7611 101009 SH DEFINED 03 101009 0 0 SELECT SECTOR SPDR TR SBI INT-FINL 81369Y605 1116 72704 SH DEFINED 03 72704 0 0 SELECT SECTOR SPDR TR SBI INT-INDS 81369Y704 3513 94323 SH DEFINED 03 94323 0 0 SELECT SECTOR SPDR TR SBI INT-TECH 81369Y803 3121 121455 SH DEFINED 03 121455 0 0 SELECT SECTOR SPDR TR SBI MATERIALS 81369Y100 807 20490 SH DEFINED 03 20490 0 0 SIGA TECHNOLOGIES INC COM 826917106 3622 371900 SH DEFINED 02 371900 0 0 SIGA TECHNOLOGIES INC COM 826917106 877 90000 SH PUT DEFINED 02 90000 0 0 SILVER BULL RES INC COM 827458100 25 37263 SH DEFINED 02 37263 0 0 SMART MODULAR TECHNOLOGIES I ORD SHS G82245104 1654 180583 SH DEFINED 02 180583 0 0 SOUTHERN UN CO NEW COM 844030106 397 9900 SH DEFINED 02 9900 0 0 SOUTHERN UN CO NEW COM 844030106 11 277 SH DEFINED 05 277 0 0 SPDR GOLD TRUST GOLD SHS 78463V107 2653 18170 SH DEFINED 02 18170 0 0 SPDR GOLD TRUST GOLD SHS 78463V107 2652 18167 SH DEFINED 04 18167 0 0 SPDR GOLD TRUST GOLD SHS 78463V107 292 2000 SH PUT DEFINED 04 2000 0 0 SPDR S&P 500 ETF TR TR UNIT 78462F103 3111 23575 SH DEFINED 04 23575 0 0 SPDR S&P 500 ETF TR TR UNIT 78462F103 15968 121000 SH PUT DEFINED 05 121000 0 0 SPDR S&P 500 ETF TR TR UNIT 78462F103 14648 111000 SH CALL DEFINED 05 111000 0 0 SPDR S&P 500 ETF TR TR UNIT 78462F103 478 3625 SH DEFINED 05 3625 0 0 SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107 17430 98232 SH DEFINED 03 98232 0 0 SPDR SERIES TRUST BRCLYS CAP CONV 78464A359 5258 126760 SH DEFINED 03 126760 0 0 SRA INTL INC CL A 78464R105 5287 170975 SH DEFINED 02 170975 0 0 SRA INTL INC CL A 78464R105 3386 109500 SH CALL DEFINED 02 109500 0 0 SRA INTL INC CL A 78464R105 1175 38000 SH PUT DEFINED 02 38000 0 0 STERLING BANCORP COM 859158107 391 41157 SH DEFINED 02 41157 0 0 STERLING BANCSHARES INC COM 858907108 204 25000 SH DEFINED 02 25000 0 0 SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 302 3500 SH DEFINED 02 3500 0 0 T3 MOTION INC COM NEW 89853X306 673 225000 SH DEFINED 02 225000 0 0 TATA MTRS LTD SPONSORED ADR 876568502 2251 100000 SH CALL DEFINED 04 100000 0 0 TATA MTRS LTD SPONSORED ADR 876568502 2251 100000 SH PUT DEFINED 04 100000 0 0 TATA MTRS LTD SPONSORED ADR 876568502 2153 95634 SH DEFINED 04 95634 0 0 TE CONNECTIVITY LTD REG SHS H84989104 754 20500 SH CALL DEFINED 05 20500 0 0 TEEKAY CORPORATION COM Y8564W103 4311 139600 SH CALL DEFINED 05 139600 0 0 TELVENT GIT SA SHS E90215109 398 10000 SH PUT DEFINED 02 10000 0 0 TENET HEALTHCARE CORP COM 88033G100 64 10236 SH DEFINED 05 10236 0 0 TEVA PHARMACEUTICAL INDS LTD ADR 881624209 2893 60000 SH CALL DEFINED 05 60000 0 0 THRESHOLD PHARMACEUTICAL INC COM NEW 885807206 334 200000 SH DEFINED 05 200000 0 0 TIMBERLAND CO CL A 887100105 516 12000 SH CALL DEFINED 02 12000 0 0 TIMBERLAND CO CL A 887100105 1100 25600 SH DEFINED 02 25600 0 0 TRANSATLANTIC HLDGS INC COM 893521104 245 5000 SH PUT DEFINED 02 5000 0 0 TRANSOCEAN LTD REG SHS H8817H100 829 12843 SH DEFINED 04 12843 0 0 TRANSOCEAN LTD REG SHS H8817H100 3667 56800 SH CALL DEFINED 04 56800 0 0 TRANSOCEAN LTD REG SHS H8817H100 949 14700 SH PUT DEFINED 04 14700 0 0 UNITED STATES OIL FUND LP UNITS 91232N108 1117 30000 SH CALL DEFINED 02 30000 0 0 UNITED THERAPEUTICS CORP DEL COM 91307C102 2585 46900 SH PUT DEFINED 05 46900 0 0 UNITED THERAPEUTICS CORP DEL COM 91307C102 9 161 SH DEFINED 05 161 0 0 UNITED THERAPEUTICS CORP DEL COM 91307C102 6794 123300 SH CALL DEFINED 05 123300 0 0 UNITEDHEALTH GROUP INC COM 91324P102 52 1000 SH DEFINED 05 1000 0 0 UNITEDHEALTH GROUP INC COM 91324P102 3611 70000 SH PUT DEFINED 05 70000 0 0 VALE S A ADR 91912E105 1360 42551 SH DEFINED 04 42551 0 0 VALE S A ADR 91912E105 3783 118400 SH PUT DEFINED 04 118400 0 0 VANGUARD INTL EQUITY INDEX F GLB EX US ETF 922042676 4571 87985 SH DEFINED 05 87985 0 0 VANGUARD INTL EQUITY INDEX F MSCI EMR MKT ETF 922042858 8521 175267 SH DEFINED 03 175267 0 0 VANGUARD INTL EQUITY INDEX F MSCI EMR MKT ETF 922042858 9624 197938 SH DEFINED 04 197938 0 0 VANGUARD INTL EQUITY INDEX F MSCI EMR MKT ETF 922042858 5 100 SH CALL DEFINED 04 100 0 0 VANGUARD WORLD FD EXTENDED DUR 921910709 1579 19390 SH DEFINED 04 19390 0 0 VARIAN SEMICONDUCTOR EQUIPMN COM 922207105 3496 56900 SH DEFINED 02 56900 0 0 VARIAN SEMICONDUCTOR EQUIPMN COM 922207105 12116 197200 SH CALL DEFINED 02 197200 0 0 VERIFONE SYS INC COM 92342Y109 205 4623 SH DEFINED 02 4623 0 0 VERIGY LTD SHS Y93691106 731 48855 SH DEFINED 02 48855 0 0 VERTEX PHARMACEUTICALS INC COM 92532F100 1586 30500 SH DEFINED 05 30500 0 0 VERTEX PHARMACEUTICALS INC COM 92532F100 520 10000 SH CALL DEFINED 05 10000 0 0 VERTEX PHARMACEUTICALS INC COM 92532F100 2568 49400 SH PUT DEFINED 05 49400 0 0 VISA INC COM CL A 92826C839 360 4278 SH DEFINED 04 4278 0 0 VIVUS INC COM 928551100 33 4000 SH DEFINED 05 4000 0 0 VIVUS INC COM 928551100 559 68600 SH CALL DEFINED 05 68600 0 0 WAL MART STORES INC COM 931142103 368 6925 SH DEFINED 02 6925 0 0 WAL MART STORES INC COM 931142103 7 127 SH DEFINED 05 127 0 0 WALTER INVT MGMT CORP COM 93317W102 250 11258 SH DEFINED 02 11258 0 0 WEBMD HEALTH CORP COM 94770V102 2531 55527 SH DEFINED 02 55527 0 0 WELLPOINT INC COM 94973V107 79 1000 SH DEFINED 05 1000 0 0 WELLPOINT INC COM 94973V107 945 12000 SH PUT DEFINED 05 12000 0 0 WELLS FARGO & CO NEW COM 949746101 271 9646 SH DEFINED 04 9646 0 0 WELLS FARGO & CO NEW COM 949746101 954 34000 SH PUT DEFINED 04 34000 0 0 XEROX CORP COM 984121103 1457 140000 SH CALL DEFINED 05 140000 0 0 YAHOO INC COM 984332106 1504 100000 SH PUT DEFINED 04 100000 0 0 YAHOO INC COM 984332106 1168 77685 SH DEFINED 04 77685 0 0 YAHOO INC COM 984332106 7535 501000 SH CALL DEFINED 04 501000 0 0