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
ABERDEEN ASIA PACIFIC INCOM COM 003009107 481 96,175 SH   DFND 0 96,175 0
ACCELERON PHARMA INC COM 00434H108 792 30,000 SH   DFND 0 30,000 0
ADEPTUS HEALTH INC CL A 006855100 2,138 38,500 SH   DFND 0 38,500 0
ADVANCED MICRO DEVICES INC COM 007903107 187 737,900 SH Put DFND 0 737,900 0
ADVENT CLAY CONV SEC INC FD COM 007639107 346 63,700 SH   DFND 0 63,700 0
ADVENT CLAYMORE CV SECS & IN COM 00764C109 1,400 105,983 SH   DFND 0 105,983 0
ADVENT CLAYMORE ENH GRW & IN COM 00765E104 4,249 517,546 SH   DFND 0 517,546 0
AETNA INC NEW COM 00817Y108 2,247 20,000 SH   DFND 0 20,000 0
AGILENT TECHNOLOGIES INC COM 00846U101 2,032 51,000 SH   DFND 0 51,000 0
ALEXION PHARMACEUTICALS INC COM 015351109 5,360 38,500 SH   DFND 0 38,500 0
ALLIANZGI CONV & INCOME FD COM 018828103 1,914 345,439 SH   DFND 0 345,439 0
ALLIANZGI CONV & INCOME FD I COM 018825109 363 74,359 SH   DFND 0 74,359 0
ALPS ETF TR ALERIAN MLP 00162Q866 382 35,000 SH   DFND 0 35,000 0
ALPS ETF TR ALERIAN MLP 00162Q866 60 100,000 SH Put DFND 0 100,000 0
AMERICAN CAP SR FLOATING LTD COM 02504D108 479 47,714 SH   DFND 0 47,714 0
AMSURG CORP COM 03232P405 746 10,000 SH   DFND 0 10,000 0
APOLLO RESIDENTIAL MTG INC COM 03763V102 2,035 151,634 SH   DFND 0 151,634 0
APOLLO RESIDENTIAL MTG INC COM 03763V102 75 56,100 SH Call DFND 0 56,100 0
APOLLO SR FLOATING RATE FD I COM 037636107 6,476 426,085 SH   DFND 0 426,085 0
APOLLO TACTICAL INCOME FD IN COM 037638103 2,081 152,931 SH   DFND 0 152,931 0
ARBUTUS BIOPHARMA CORP COM 03879J100 371 89,800 SH   DFND 0 89,800 0
ARES DYNAMIC CR ALLOCATION F COM 04014F102 5,454 407,626 SH   DFND 0 407,626 0
ARIAD PHARMACEUTICALS INC COM 04033A100 912 142,800 SH   DFND 0 142,800 0
ASSURED GUARANTY LTD COM G0585R106 9 50,000 SH Call DFND 0 50,000 0
AVENUE INCOME CR STRATEGIES COM 05358E106 1,275 116,336 SH   DFND 0 116,336 0
BARCLAYS BK PLC IPATH S&P500 VIX 06742E711 1,683 1,051,500 SH Put DFND 0 1,051,500 0
BAXALTA INC COM 07177M103 5,737 142,000 SH   DFND 0 142,000 0
BIOGEN INC COM 09062X103 4,863 18,682 SH   DFND 0 18,682 0
BIOMARIN PHARMACEUTICAL INC COM 09061G101 6,324 76,672 SH   DFND 0 76,672 0
BLACKROCK DEBT STRAT FD INC COM 09255R103 914 263,312 SH   DFND 0 263,312 0
BLACKROCK ENERGY & RES TR COM 09250U101 521 40,086 SH   DFND 0 40,086 0
BLACKROCK FLOAT RATE OME STR COM 09255X100 5,015 383,740 SH   DFND 0 383,740 0
BLACKROCK FLOATING RATE INCO COM 091941104 464 36,150 SH   DFND 0 36,150 0
BLACKROCK MULTI-SECTOR INC T COM 09258A107 2,441 154,417 SH   DFND 0 154,417 0
BLACKROCK MUNI INTER DR FD I COM 09253X102 3,267 222,844 SH   DFND 0 222,844 0
BLACKSTONE GSO FLTING RTE FU COM 09256U105 184 12,000 SH   DFND 0 12,000 0
BLACKSTONE GSO LNG SHRT CR I COM SHS BN INT 09257D102 6,107 449,069 SH   DFND 0 449,069 0
BLACKSTONE GSO STRATEGIC CR COM SHS BEN IN 09257R101 8,743 641,465 SH   DFND 0 641,465 0
BLUEBIRD BIO INC COM 09609G100 1,233 29,000 SH   DFND 0 29,000 0
BOULDER GROWTH & INCOME FD I COM 101507101 9,958 1,268,583 SH   DFND 0 1,268,583 0
BP PRUDHOE BAY RTY TR UNIT BEN INT 055630107 195 33,000 SH Put DFND 0 33,000 0
BRISTOL MYERS SQUIBB CO COM 110122108 5,347 83,700 SH   DFND 0 83,700 0
BROOKFIELD HIGH INCOME FD IN COM 11272P102 666 95,878 SH   DFND 0 95,878 0
BROOKFIELD MTG OPP INC FD IN COM 112792106 1,615 110,282 SH   DFND 0 110,282 0
CALAMOS CONV & HIGH INCOME F COM SHS 12811P108 2,983 287,117 SH   DFND 0 287,117 0
CALAMOS CONV OPP AND INC FD SH BEN INT 128117108 2,533 266,948 SH   DFND 0 266,948 0
CALAMOS GBL DYN INCOME FUND COM 12811L107 2,795 397,634 SH   DFND 0 397,634 0
CALAMOS GLOBAL TOTAL RETURN COM SH BEN INT 128118106 1,409 127,256 SH   DFND 0 127,256 0
CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 1,454 152,843 SH   DFND 0 152,843 0
CARROLS RESTAURANT GROUP INC COM 14574X104 4 20,000 SH Put DFND 0 20,000 0
CELGENE CORP COM 151020104 6,606 66,000 SH   DFND 0 66,000 0
CELGENE CORP COM 151020104 3 25,000 SH Call DFND 0 25,000 0
CENTRAL FD CDA LTD CL A 153501101 8,213 685,000 SH   DFND 0 685,000 0
CLEAR CHANNEL OUTDOOR HLDGS CL A 18451C109 674 143,430 SH   DFND 0 143,430 0
CLOUGH GLOBAL OPPORTUNITIES SH BEN INT 18914E106 1,458 152,223 SH   DFND 0 152,223 0
COHEN & STEERS REIT & PFD IN COM 19247X100 3,616 191,098 SH   DFND 0 191,098 0
CORNERSTONE STRATEGIC VALUE COM 21924B302 1,369 93,518 SH   DFND 0 93,518 0
CROSSROADS CAP INC COM 227656105 163 62,400 SH   DFND 0 62,400 0
DEUTSCHE HIGH INCOME OPPORT COM 25158Y102 1,664 124,823 SH   DFND 0 124,823 0
DEUTSCHE MULTI-MKT INCOME TR SHS 25160E102 379 47,807 SH   DFND 0 47,807 0
DEUTSCHE STRATEGIC INCOME TR SHS 25160F109 388 35,066 SH   DFND 0 35,066 0
DOUBLELINE INCOME SOLUTIONS COM 258622109 409 24,359 SH   DFND 0 24,359 0
DUFF & PHELPS GLB UTL INC FD COM 26433C105 564 35,444 SH   DFND 0 35,444 0
EATON VANCE FLTG RATE INCOM COM SHS BEN INT 278284104 2,609 178,935 SH   DFND 0 178,935 0
EATON VANCE FLTING RATE INC COM 278279104 1,750 132,992 SH   DFND 0 132,992 0
EATON VANCE LTD DUR INCOME F COM 27828H105 1,344 101,999 SH   DFND 0 101,999 0
EATON VANCE SR FLTNG RTE TR COM 27828Q105 1,443 112,530 SH   DFND 0 112,530 0
EATON VANCE SR INCOME TR SH BEN INT 27826S103 5,030 868,682 SH   DFND 0 868,682 0
ENDOLOGIX INC COM 29266S106 971 116,100 SH   DFND 0 116,100 0
ENTERCOM COMMUNICATIONS CORP CL A 293639100 3 10,000 SH Put DFND 0 10,000 0
ENTERPRISE PRODS PARTNERS L COM 293792107 1,425 57,900 SH   DFND 0 57,900 0
ENTERPRISE PRODS PARTNERS L COM 293792107 80 158,500 SH Call DFND 0 158,500 0
ENTERPRISE PRODS PARTNERS L COM 293792107 223 333,500 SH Put DFND 0 333,500 0
ENVISION HEALTHCARE HLDGS IN COM 29413U103 867 42,500 SH   DFND 0 42,500 0
FIDUCIARY CLAYMORE MLP OPP F COM 31647Q106 1,253 114,225 SH   DFND 0 114,225 0
FIFTH STR SR FLOATNG RATE CO COM 31679F101 1,213 152,979 SH   DFND 0 152,979 0
FIRST TR DIVIDEND INCOME FD COM 33731L100 203 23,511 SH   DFND 0 23,511 0
FIRST TR STRATEGIC HIGH INC COM SHS NEW 337353304 2,426 213,365 SH   DFND 0 213,365 0
GILEAD SCIENCES INC COM 375558103 10,591 115,300 SH   DFND 0 115,300 0
GILEAD SCIENCES INC COM 375558103 20 15,000 SH Call DFND 0 15,000 0
HCA HOLDINGS INC COM 40412C101 4,293 55,000 SH   DFND 0 55,000 0
HERBALIFE LTD COM USD SHS G4412G101 1 10,000 SH Put DFND 0 10,000 0
HORIZON PHARMA PLC SHS G4617B105 2,812 169,700 SH   DFND 0 169,700 0
IMMUNOGEN INC COM 45253H101 297 34,900 SH   DFND 0 34,900 0
INCYTE CORP COM 45337C102 2,312 31,900 SH   DFND 0 31,900 0
INTERSECT ENT INC COM 46071F103 669 35,213 SH   DFND 0 35,213 0
INVESCO DYNAMIC CR OPP FD COM 46132R104 13,930 1,295,835 SH   DFND 0 1,295,835 0
INVESCO MORTGAGE CAPITAL INC COM 46131B100 431 35,411 SH   DFND 0 35,411 0
INVESCO SR INCOME TR COM 46131H107 3,562 881,650 SH   DFND 0 881,650 0
IONIS PHARMACEUTICALS INC COM 462222100 1,167 28,820 SH   DFND 0 28,820 0
IRONWOOD PHARMACEUTICALS INC COM CL A 46333X108 328 30,000 SH   DFND 0 30,000 0
ISHARES MSCI GERMANY ETF 464286806 257 10,000 SH   DFND 0 10,000 0
ISHARES MSCI GERMANY ETF 464286806 4 40,000 SH Put DFND 0 40,000 0
ISHARES TR NASDQ BIOTEC ETF 464287556 2,556 9,800 SH   DFND 0 9,800 0
ISHARES TR NASDQ BIOTEC ETF 464287556 6,478 465,900 SH Put DFND 0 465,900 0
ISHARES TR RUSSELL 2000 ETF 464287655 32 225,000 SH Put DFND 0 225,000 0
ISHARES TR IBOXX HI YD ETF 464288513 82 531,500 SH Call DFND 0 531,500 0
ISHARES TR IBOXX HI YD ETF 464288513 85 330,000 SH Put DFND 0 330,000 0
ISHARES TR MRG RL ES CP ETF 464288539 4,545 470,000 SH   DFND 0 470,000 0
IVY HIGH INC OPPORTUNITIES F COM 465893105 2,352 184,752 SH   DFND 0 184,752 0
JAZZ PHARMACEUTICALS PLC SHS USD G50871105 5,875 45,000 SH   DFND 0 45,000 0
JUNO THERAPEUTICS INC COM 48205A109 1,486 39,000 SH   DFND 0 39,000 0
KINDER MORGAN INC DEL COM 49456B101 1,732 97,000 SH   DFND 0 97,000 0
KINDER MORGAN INC DEL COM 49456B101 75 171,800 SH Call DFND 0 171,800 0
KINDER MORGAN INC DEL COM 49456B101 271 515,400 SH Put DFND 0 515,400 0
KITE PHARMA INC COM 49803L109 643 14,000 SH   DFND 0 14,000 0
KKR INCOME OPPORTUNITIES FD COM 48249T106 1,144 79,423 SH   DFND 0 79,423 0
LIBERTY ALL STAR EQUITY FD SH BEN INT 530158104 2,624 527,959 SH   DFND 0 527,959 0
LMP CAP & INCOME FD INC COM 50208A102 1,011 81,737 SH   DFND 0 81,737 0
LMP CORPORATE LN FD INC COM 50208B100 3,018 309,197 SH   DFND 0 309,197 0
LMP REAL ESTATE INCOME FD IN COM 50208C108 586 42,939 SH   DFND 0 42,939 0
MALLINCKRODT PUB LTD CO SHS G5785G107 1,287 21,000 SH   DFND 0 21,000 0
MASIMO CORP COM 574795100 1,531 36,600 SH   DFND 0 36,600 0
MEDIVATION INC COM 58501N101 3,375 73,400 SH   DFND 0 73,400 0
MERRIMACK PHARMACEUTICALS IN COM 590328100 528 63,090 SH   DFND 0 63,090 0
NATERA INC COM 632307104 348 36,600 SH   DFND 0 36,600 0
NATURAL HEALTH TRENDS CORP COM PAR $.001 63888P406 8 10,300 SH Put DFND 0 10,300 0
NEUBERGER BERMAN RE ES SEC F COM 64190A103 5,159 1,013,559 SH   DFND 0 1,013,559 0
NEWLINK GENETICS CORP COM 651511107 182 10,000 SH   DFND 0 10,000 0
NORTHSTAR RLTY FIN CORP COM 66704R803 554 42,200 SH   DFND 0 42,200 0
NUVEEN CR STRATEGIES INCM FD COM SHS 67073D102 14,723 1,861,336 SH   DFND 0 1,861,336 0
NUVEEN DIVERSIFIED COMMODTY COM UT BEN INT 67074P104 155 17,381 SH   DFND 0 17,381 0
NUVEEN DIVID ADV MUN FD 3 COM SH BEN INT 67070X101 3,472 231,927 SH   DFND 0 231,927 0
NUVEEN FLOATING RATE INCOME COM 67072T108 3,961 393,377 SH   DFND 0 393,377 0
NUVEEN FLTNG RTE INCM OPP FD COM SHS 6706EN100 3,655 369,561 SH   DFND 0 369,561 0
NUVEEN GLOBAL EQUITY INCOME COM 6706EH103 568 51,771 SH   DFND 0 51,771 0
NUVEEN LG/SHT COMMODITY TOTR COM UT BEN INT 670731108 2,904 192,811 SH   DFND 0 192,811 0
NUVEEN MUN ADVANTAGE FD INC COM 67062H106 162 11,284 SH   DFND 0 11,284 0
NUVEEN MUN MKT OPPORTUNITY F COM 67062W103 2,174 152,859 SH   DFND 0 152,859 0
NUVEEN MUN OPPORTUNITY FD IN COM 670984103 2,541 172,653 SH   DFND 0 172,653 0
NUVEEN PA INVT QUALITY MUN F COM 670972108 633 44,106 SH   DFND 0 44,106 0
NUVEEN PREM INCOME MUN FD COM 67062T100 1,537 105,498 SH   DFND 0 105,498 0
NUVEEN PREM INCOME MUN FD 2 COM 67063W102 908 61,680 SH   DFND 0 61,680 0
NUVEEN PREMIER MUN INCOME FD COM 670988104 1,254 88,822 SH   DFND 0 88,822 0
NUVEEN QUALITY INCOME MUN FD COM 670977107 561 38,136 SH   DFND 0 38,136 0
NUVEEN QUALITY MUN FD INC COM 67062N103 1,155 81,130 SH   DFND 0 81,130 0
NUVEEN REAL ASSET INC & GROW COM 67074Y105 212 13,800 SH   DFND 0 13,800 0
NUVEEN SHT DUR CR OPP FD COM 67074X107 5,794 383,198 SH   DFND 0 383,198 0
NUVEEN SR INCOME FD COM 67067Y104 6,989 1,184,492 SH   DFND 0 1,184,492 0
PFIZER INC COM 717081103 10 60,000 SH Call DFND 0 60,000 0
PFIZER INC COM 717081103 5,113 172,500 SH   DFND 0 172,500 0
PIMCO DYNAMIC CR INCOME FD COM SHS 72202D106 6,059 347,411 SH   DFND 0 347,411 0
PIMCO INCOME OPPORTUNITY FD COM 72202B100 547 26,352 SH   DFND 0 26,352 0
PIMCO INCOME STRATEGY FUND COM 72201H108 1,130 118,233 SH   DFND 0 118,233 0
PIONEER FLOATING RATE TR COM 72369J102 3,723 332,695 SH   DFND 0 332,695 0
POWERSHS DB MULTI SECT COMM PS DB AGRICUL FD 73936B408 742 36,000 SH   DFND 0 36,000 0
PRINCIPAL REAL ESTATE INCOME SHS BEN INT 74255X104 343 20,773 SH   DFND 0 20,773 0
PROTHENA CORP PLC SHS G72800108 1,568 38,104 SH   DFND 0 38,104 0
RADIO ONE INC CL D NON VTG 75040P405 99 69,481 SH   DFND 0 69,481 0
REGENERON PHARMACEUTICALS COM 75886F107 2,901 8,048 SH   DFND 0 8,048 0
RMR REAL ESTATE INCOME FUND COM 76970B101 8,326 431,470 SH   DFND 0 431,470 0
SHIRE PLC SPONSORED ADR 82481R106 3,954 23,000 SH   DFND 0 23,000 0
SPARK THERAPEUTICS INC COM 84652J103 1,014 34,350 SH   DFND 0 34,350 0
SPDR GOLD TRUST GOLD SHS 78463V107 10 20,000 SH Call DFND 0 20,000 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 5 10,000 SH Put DFND 0 10,000 0
SPDR SERIES TRUST BRC HGH YLD BD 78464A417 35 200,000 SH Call DFND 0 200,000 0
SPDR SERIES TRUST BRC HGH YLD BD 78464A417 1 10,000 SH Put DFND 0 10,000 0
SPDR SERIES TRUST S&P OILGAS EXP 78464A730 9 24,000 SH Call DFND 0 24,000 0
SPDR SERIES TRUST S&P BIOTECH 78464A870 495 150,000 SH Put DFND 0 150,000 0
SPDR SERIES TRUST S&P HOMEBUILD 78464A888 308 9,100 SH   DFND 0 9,100 0
SURGERY PARTNERS INC COM 86881A100 618 46,600 SH   DFND 0 46,600 0
TENET HEALTHCARE CORP COM NEW 88033G407 3,637 125,700 SH   DFND 0 125,700 0
THL CR SR LN FD COM 87244R103 1,551 97,712 SH   DFND 0 97,712 0
UNITED STATES OIL FUND LP UNITS 91232N108 16 30,000 SH Call DFND 0 30,000 0
VERTEX PHARMACEUTICALS INC COM 92532F100 4,332 54,500 SH   DFND 0 54,500 0
VIRTUS TOTAL RETURN FD COM 92829A103 1,111 261,370 SH   DFND 0 261,370 0
VOYA PRIME RATE TR SH BEN INT 92913A100 1,597 316,885 SH   DFND 0 316,885 0
WESTERN ASSET CLYM INFL OPP COM 95766R104 1,597 144,408 SH   DFND 0 144,408 0
WESTERN ASSET CLYM INFL SEC COM SH BEN INT 95766Q106 2,964 260,200 SH   DFND 0 260,200 0
WL ROSS HLDG CORP COM SHS 92939D104 691 68,892 SH   DFND 0 68,892 0
WL ROSS HLDG CORP *W EXP 06/11/201 92939D112 38 78,958 SH   DFND 0 78,958 0
WL ROSS HLDG CORP UNIT 06/11/2019 92939D203 266 25,400 SH   DFND 0 25,400 0
ZAIS FINL CORP COM 98886K108 940 63,014 SH   DFND 0 63,014 0
ZWEIG TOTAL RETURN FD INC COM NEW 989837208 535 44,653 SH   DFND 0 44,653 0