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
Ac Immune Sa SHS H00263105 8,800 1,000,000 SH   SOLE   1,000,000 0 0
Aclaris Therapeutics Inc COM 00461U105 22,748 838,800 SH   SOLE   838,800 0 0
Adecoagro S A COM L00849106 799 80,000 SH   SOLE   80,000 0 0
Adecoagro S A COM L00849106 49,001 4,905,000 SH   DFND 1 4,905,000 0 0
Adobe Sys Inc COM 00724F101 101,992 721,100 SH   SOLE   721,100 0 0
Advance Auto Parts Inc COM 00751Y106 16,358 140,300 SH   SOLE   140,300 0 0
Advanced Accelerator Applications Sa SPONSORED ADS 00790T100 5,247 134,400 SH   SOLE   134,400 0 0
Aetna Inc New COM 00817Y108 2,277 15,000 SH   SOLE   15,000 0 0
Alibaba Group Hldg Ltd SPONSORED ADS 01609W102 193,018 1,369,897 SH   SOLE   1,369,897 0 0
Allergan Plc SHS G0177J108 12,155 50,000 SH Put SOLE   50,000 0 0
Alphabet Inc CAP STK CL A 02079K305 260,475 280,177 SH   SOLE   280,177 0 0
Alphabet Inc CAP STK CL A 02079K305 9,297 10,000 SH Call SOLE   10,000 0 0
Altaba Inc COM 021346101 3,269 60,000 SH   SOLE   60,000 0 0
Amazon Com Inc COM 023135106 440,848 455,421 SH   SOLE   455,421 0 0
Ashland Global Hldgs Inc COM 044186104 1,977 30,000 SH   SOLE   30,000 0 0
Autodesk Inc COM 052769106 352,154 3,492,900 SH   SOLE   3,492,900 0 0
Avexis Inc COM 05366U100 44,750 544,667 SH   SOLE   544,667 0 0
Axovant Sciences Ltd COM G0750W104 8,121 350,200 SH   SOLE   350,200 0 0
Banco Macro Sa SPON ADR B 05961W105 76,324 827,900 SH   SOLE   827,900 0 0
Banco Macro Sa SPON ADR B 05961W105 82,040 889,900 SH   DFND 1 889,900 0 0
Bank Amer Corp COM 060505104 474,904 19,575,617 SH   SOLE   19,575,617 0 0
Bank Amer Corp COM 060505104 1,698 70,000 SH Call SOLE   70,000 0 0
Biogen Inc COM 09062X103 42,313 155,930 SH   SOLE   155,930 0 0
Boeing Co COM 097023105 88,889 449,500 SH   SOLE   449,500 0 0
Bristol Myers Squibb Co COM 110122108 120,313 2,159,250 SH   SOLE   2,159,250 0 0
Bristol Myers Squibb Co COM 110122108 46,248 830,000 SH Call SOLE   830,000 0 0
Broadcom Ltd SHS Y09827109 152,775 655,545 SH   SOLE   655,545 0 0
Bwx Technologies Inc COM 05605H100 8,312 170,500 SH   SOLE   170,500 0 0
Cabot Oil & Gas Corp COM 127097103 451,738 18,011,889 SH   SOLE   18,011,889 0 0
Cdk Global Inc COM 12508E101 12,809 206,400 SH   SOLE   206,400 0 0
Citigroup Inc COM NEW 172967424 321,322 4,804,460 SH   SOLE   4,804,460 0 0
Citizens Finl Group Inc COM 174610105 31,011 869,154 SH   SOLE   869,154 0 0
Clovis Oncology Inc COM 189464100 186,805 1,995,139 SH   SOLE   1,995,139 0 0
Comcast Corp New CL A 20030N101 357,680 9,190,138 SH   SOLE   9,190,138 0 0
Comcast Corp New CL A 20030N101 7,784 200,000 SH Call SOLE   200,000 0 0
Community Health Sys Inc New COM 203668108 12,575 1,262,600 SH   SOLE   1,262,600 0 0
Comstock Res Inc COM 205768302 8,596 1,215,802 SH   SOLE   1,215,802 0 0
Comstock Res Inc NOTE 9.500% 6/1 205768AN4 15,948 20,517,179 PRN   SOLE   20,517,179 0 0
Comstock Res Inc NOTE 7.750% 4/0 205768AM6 23,956 30,325,663 PRN   SOLE   30,325,663 0 0
Comstock Res Inc NOTE 9.500% 6/1 205768AN4 3,185 4,096,937 PRN   OTR   4,096,937 0 0
Comstock Res Inc NOTE 7.750% 4/0 205768AM6 4,803 6,079,869 PRN   OTR   6,079,869 0 0
Constellation Brands Inc CL A 21036P108 2,209 11,400 SH   SOLE   11,400 0 0
Crown Castle Intl Corp New COM 22822V101 188,265 1,879,270 SH   SOLE   1,879,270 0 0
Csx Corp COM 126408103 50,380 923,395 SH   SOLE   923,395 0 0
Davita Inc COM 23918K108 53,159 820,855 SH   SOLE   820,855 0 0
Deere & Co COM 244199105 4,264 34,500 SH   SOLE   34,500 0 0
Delta Air Lines Inc Del COM NEW 247361702 106,866 1,988,575 SH   SOLE   1,988,575 0 0
Dicks Sporting Goods Inc COM 253393102 28,168 707,200 SH   SOLE   707,200 0 0
Dow Chem Co COM 260543103 206,087 3,267,597 SH   SOLE   3,267,597 0 0
Dow Chem Co COM 260543103 6,307 100,000 SH Call SOLE   100,000 0 0
Du Pont E I De Nemours & Co COM 263534109 3,228 40,000 SH   SOLE   40,000 0 0
Dxc Technology Co COM 23355L106 1,918 25,000 SH Put SOLE   25,000 0 0
Dynavax Technologies Corp COM NEW 268158201 13,510 1,400,000 SH   SOLE   1,400,000 0 0
Eaton Corp Plc SHS G29183103 87,567 1,125,100 SH   SOLE   1,125,100 0 0
Electronic Arts Inc COM 285512109 108,676 1,027,960 SH   SOLE   1,027,960 0 0
Empresa Dist Y Comercial Nor SPON ADR 29244A102 474 14,874 SH   DFND 1 14,874 0 0
Endo Intl Plc SHS G30401106 726 65,000 SH   SOLE   65,000 0 0
F M C Corp COM NEW 302491303 25,115 343,800 SH   SOLE   343,800 0 0
Facebook Inc CL A 30303M102 403,899 2,675,179 SH   SOLE   2,675,179 0 0
Fidelity National Financial FNF GROUP COM 31620R303 33,981 758,000 SH   SOLE   758,000 0 0
Global Blood Therapeutics In COM 37890U108 7,671 280,479 SH   SOLE   280,479 0 0
Grupo Financiero Galicia S A SP ADR 10 SH B 399909100 46,577 1,092,321 SH   SOLE   1,092,321 0 0
Grupo Financiero Galicia S A SP ADR 10 SH B 399909100 56,970 1,336,070 SH   DFND 1 1,336,070 0 0
Grupo Supervielle S A SPONSORED ADR 40054A108 42,207 2,334,457 SH   DFND 1 2,334,457 0 0
Huntsman Corp COM 447011107 2,584 100,000 SH   SOLE   100,000 0 0
Ignyta Inc COM 451731103 6,004 580,100 SH   SOLE   580,100 0 0
Intelsat S A COM L5140P101 11,573 3,782,000 SH   SOLE   3,782,000 0 0
Irhythm Technologies Inc COM 450056106 22,218 522,900 SH   SOLE   522,900 0 0
Ishares Tr NASDQ BIOTEC ETF 464287556 992 3,200 SH   SOLE   3,200 0 0
Ishares Tr IBOXX HI YD ETF 464288513 18,783 212,500 SH Put SOLE   212,500 0 0
Leidos Hldgs Inc COM 525327102 8,534 165,100 SH   SOLE   165,100 0 0
Loxo Oncology Inc COM 548862101 3,993 49,800 SH   SOLE   49,800 0 0
Lyondellbasell Industries N SHS - A - N53745100 48,499 574,700 SH   SOLE   574,700 0 0
Medicines Co COM 584688105 41,962 1,103,966 SH   SOLE   1,103,966 0 0
Mercadolibre Inc COM 58733R102 7,401 29,500 SH   SOLE   29,500 0 0
Mgm Resorts International COM 552953101 239,347 7,649,300 SH   SOLE   7,649,300 0 0
Microsoft Corp COM 594918104 203,895 2,958,000 SH   SOLE   2,958,000 0 0
Monsanto Co New COM 61166W101 46,456 392,500 SH   SOLE   392,500 0 0
Monsanto Co New COM 61166W101 1,408 11,900 SH Call SOLE   11,900 0 0
Nektar Therapeutics COM 640268108 33,841 1,731,000 SH   SOLE   1,731,000 0 0
Nii Hldgs Inc COM PAR 62913F508 3,741 4,653,000 SH   SOLE   4,653,000 0 0
Novocure Ltd ORD SHS G6674U108 5,744 332,000 SH   SOLE   332,000 0 0
Nxp Semiconductors N V COM N6596X109 4,925 45,000 SH   SOLE   45,000 0 0
Oi S A SPONSORED ADR NE 670851500 21,240 3,516,580 SH   SOLE   3,516,580 0 0
Oncobiologics Inc *W EXP 02/18/201 68235M113 17 100,000 SH   SOLE   100,000 0 0
Oncobiologics Inc *W EXP 05/18/201 68235M121 9 100,000 SH   SOLE   100,000 0 0
Pacira Pharmaceuticals Inc COM 695127100 27,261 571,500 SH   SOLE   571,500 0 0
Pampa Energia S A SPONS ADR LVL I 697660207 168,623 2,865,306 SH   SOLE   2,865,306 0 0
Pampa Energia S A SPONS ADR LVL I 697660207 129,453 2,199,706 SH   DFND 1 2,199,706 0 0
Parexel Intl Corp COM 699462107 1,086 12,500 SH   SOLE   12,500 0 0
Peabody Energy Corp New COM 704551100 124,113 5,076,211 SH   SOLE   5,076,211 0 0
Peabody Energy Corp New COM 704551100 23,992 981,248 SH   OTR   981,248 0 0
Pinnacle Foods Inc Del COM 72348P104 2,376 40,000 SH   SOLE   40,000 0 0
Powershares Qqq Trust UNIT SER 1 73935A104 121,357 881,700 SH Put SOLE   881,700 0 0
Praxair Inc COM 74005P104 76,481 577,000 SH   SOLE   577,000 0 0
Priceline Grp Inc COM NEW 741503403 9,727 5,200 SH   SOLE   5,200 0 0
Prothena Corp Plc SHS G72800108 14,748 272,500 SH   SOLE   272,500 0 0
Ptc Inc COM 69370C100 78,751 1,428,724 SH   SOLE   1,428,724 0 0
Puma Biotechnology Inc COM 74587V107 52,908 605,360 SH   SOLE   605,360 0 0
Regeneron Pharmaceuticals COM 75886F107 78,199 159,220 SH   SOLE   159,220 0 0
Repligen Corp COM 759916109 11,984 289,200 SH   SOLE   289,200 0 0
Revance Therapeutics Inc COM 761330109 11,568 438,200 SH   SOLE   438,200 0 0
Reynolds American Inc COM 761713106 2,602 40,000 SH   SOLE   40,000 0 0
Rice Energy Inc COM 762760106 226,920 8,521,214 SH   SOLE   8,521,214 0 0
Rite Aid Corp COM 767754104 221 75,000 SH   SOLE   75,000 0 0
Rockwell Collins Inc COM 774341101 45,594 433,900 SH   SOLE   433,900 0 0
Royal Bk Of Scotland Plc NOTE 8.000%12/3 780099CK1 26,155 24,100,000 PRN   SOLE   24,100,000 0 0
Royal Bk Scotland Group Plc NOTE 8.625%12/3 780097BB6 12,912 11,850,000 PRN   SOLE   11,850,000 0 0
Salesforce Com Inc COM 79466L302 1,645 19,000 SH Call SOLE   19,000 0 0
Sarepta Therapeutics Inc COM 803607100 21,302 631,922 SH   SOLE   631,922 0 0
Sba Communications Corp New CL A 78410G104 149,091 1,105,200 SH   SOLE   1,105,200 0 0
Schwab Charles Corp New COM 808513105 18,022 419,500 SH   SOLE   419,500 0 0
Select Sector Spdr Tr SBI HEALTHCARE 81369Y209 7,924 100,000 SH Call SOLE   100,000 0 0
Shire Plc SPONSORED ADR 82481R106 992 6,000 SH   SOLE   6,000 0 0
Southwest Airls Co COM 844741108 91,055 1,465,314 SH   SOLE   1,465,314 0 0
Spark Therapeutics Inc COM 84652J103 2,569 43,000 SH   SOLE   43,000 0 0
Spdr S&P 500 Etf Tr TR UNIT 78462F103 74,619 308,600 SH Put SOLE   308,600 0 0
Spdr S&P 500 Etf Tr TR UNIT 78462F103 212,349 878,200 SH Call SOLE   878,200 0 0
Sprint Corp COM SER 1 85207U105 1,026 125,000 SH   SOLE   125,000 0 0
Sprouts Fmrs Mkt Inc COM 85208M102 32,954 1,453,659 SH   SOLE   1,453,659 0 0
Straight Path Communicatns I CL B 862578101 898 5,000 SH   SOLE   5,000 0 0
T Mobile Us Inc COM 872590104 182,601 3,012,216 SH   SOLE   3,012,216 0 0
T Mobile Us Inc COM 872590104 6,062 100,000 SH Call SOLE   100,000 0 0
Taubman Ctrs Inc COM 876664103 6,592 110,700 SH   SOLE   110,700 0 0
Tesaro Inc COM 881569107 85,971 614,695 SH   SOLE   614,695 0 0
Time Warner Inc COM NEW 887317303 114,487 1,140,200 SH   SOLE   1,140,200 0 0
Transportadora De Gas Sur SPON ADR B 893870204 61,984 3,731,715 SH   DFND 1 3,731,715 0 0
Tribune Media Co CL A 896047503 2,446 60,000 SH   SOLE   60,000 0 0
Ultra Petroleum Corp COM NEW 903914208 50,148 4,621,938 SH   SOLE   4,621,938 0 0
Ultra Petroleum Corp COM NEW 903914208 6,817 628,287 SH   OTR   628,287 0 0
Valvoline Inc COM 92047W101 1,067 45,001 SH   SOLE   45,001 0 0
Varian Med Sys Inc COM 92220P105 12,507 121,200 SH   SOLE   121,200 0 0
Verizon Communications Inc COM 92343V104 8,932 200,000 SH Call SOLE   200,000 0 0
Vertex Pharmaceuticals Inc COM 92532F100 10,477 81,300 SH   SOLE   81,300 0 0
Vertex Pharmaceuticals Inc COM 92532F100 128,870 1,000,000 SH Call SOLE   1,000,000 0 0
Visa Inc COM CL A 92826C839 3,695 39,400 SH   SOLE   39,400 0 0
Wells Fargo Co New COM 949746101 216,940 3,915,172 SH   SOLE   3,915,172 0 0
Whole Foods Mkt Inc COM 966837106 2,106 50,000 SH   SOLE   50,000 0 0
Williams Cos Inc Del COM 969457100 117,108 3,867,500 SH   SOLE   3,867,500 0 0
Xylem Inc COM 98419M100 34,128 615,700 SH   SOLE   615,700 0 0
Ypf Sociedad Anonima SPON ADR CL D 984245100 16,579 757,013 SH   DFND 1 757,013 0 0
Zayo Group Hldgs Inc COM 98919V105 5,744 185,900 SH   SOLE   185,900 0 0