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
3-D SYS CORP DEL COM NEW 88554D205 1,967 241,300 SH   SOLE   241,300 0 0
58 COM INC SPON ADR REP A 31680Q104 59,066 1,197,850 SH   SOLE   1,197,850 0 0
ALICO INC COM 016230104 4,937 145,118 SH   SOLE   145,118 0 0
ALPHABET INC CAP STK CL C 02079K107 220,139 180,590 SH   SOLE   180,590 0 0
ALPHABET INC CAP STK CL A 02079K305 16,418 13,445 SH   SOLE   13,445 0 0
AMERICAN SUPERCONDUCTOR CORP SHS NEW 030111207 4,067 518,745 SH   SOLE   518,745 0 0
ARCBEST CORP COM 03937C105 14,570 478,500 SH   SOLE   478,500 0 0
ARROW ELECTRS INC COM 042735100 35,782 479,785 SH   SOLE   479,785 0 0
ATHENE HLDG LTD CL A G0684D107 84,159 2,000,920 SH   SOLE   2,000,920 0 0
AU OPTRONICS CORP SPONSORED ADR 002255107 5,161 2,098,075 SH   SOLE   2,098,075 0 0
AWARE INC MASS COM 05453N100 74 24,600 SH   SOLE   24,600 0 0
BAIDU INC SPON ADR REP A 056752108 54,688 532,190 SH   SOLE   532,190 0 0
BIOGEN INC COM 09062X103 60,321 259,090 SH   SOLE   259,090 0 0
BIOLIFE SOLUTIONS INC COM NEW 09062W204 4,256 256,007 SH   SOLE   256,007 0 0
BLOOM ENERGY CORP COM CL A 093712107 2,411 741,752 SH   SOLE   741,752 0 0
BOOKING HLDGS INC COM 09857L108 64,809 33,022 SH   SOLE   33,022 0 0
BUILDERS FIRSTSOURCE INC COM 12008R107 12,048 585,559 SH   SOLE   585,559 0 0
CANADIAN NAT RES LTD COM 136385101 61,105 2,295,132 SH   SOLE   2,295,132 0 0
CAPITAL ONE FINL CORP COM 14040H105 49,134 540,055 SH   SOLE   540,055 0 0
CAPSTONE TURBINE CORP COM NEW 14067D409 140 274,742 SH   SOLE   274,742 0 0
CASTLIGHT HEALTH INC CL B 14862Q100 992 703,487 SH   SOLE   703,487 0 0
CDW CORP COM 12514G108 42,683 346,340 SH   SOLE   346,340 0 0
CELANESE CORP DEL COM 150870103 389,813 3,187,610 SH   SOLE   3,187,610 0 0
CIENA CORP COM NEW 171779309 369 9,410 SH   SOLE   9,410 0 0
CIGNA CORP NEW COM 125523100 13,266 87,397 SH   SOLE   87,397 0 0
CINCINNATI BELL INC NEW COM NEW 171871502 2,183 430,656 SH   SOLE   430,656 0 0
CITIGROUP GLOBAL MKTS HLDGS VLCTYSHS 3X INV 17325E309 3,766 682,200 SH   SOLE   682,200 0 0
CITIGROUP GLOBAL MKTS HLDGS VLCTYSHS 3X LNG 17325E291 2,177 209,900 SH   SOLE   209,900 0 0
CITIGROUP INC COM NEW 172967424 25,418 367,945 SH   SOLE   367,945 0 0
CREDIT SUISSE NASSAU BRH VLCTYSHS 3X INV 22542D282 11,986 88,100 SH   SOLE   88,100 0 0
CRH PLC ADR 12626K203 15,850 461,290 SH   SOLE   461,290 0 0
CROCS INC COM 227046109 2,915 105,000 SH   SOLE   105,000 0 0
DELTA AIR LINES INC DEL COM NEW 247361702 81,116 1,408,260 SH   SOLE   1,408,260 0 0
DIAMONDBACK ENERGY INC COM 25278X109 3,102 34,500 SH   SOLE   34,500 0 0
DIREXION SHS ETF TR DAILY GOLD MINER 25490K133 7,410 900,400 SH   SOLE   900,400 0 0
EASTMAN CHEMICAL CO COM 277432100 38,063 515,550 SH   SOLE   515,550 0 0
ELECTRONIC ARTS INC COM 285512109 2,281 23,320 SH   SOLE   23,320 0 0
EMCORE CORP COM NEW 290846203 84 27,405 SH   SOLE   27,405 0 0
ENTEGRIS INC COM 29362U104 300,181 6,378,680 SH   SOLE   6,378,680 0 0
FACEBOOK INC CL A 30303M102 33,735 189,440 SH   SOLE   189,440 0 0
GAMESTOP CORP NEW CL A 36467W109 521 94,400 SH   SOLE   94,400 0 0
GRAN TIERRA ENERGY INC COM 38500T101 95,589 77,170,686 SH   SOLE   77,170,686 0 0
GTT COMMUNICATIONS INC COM 362393100 5,220 554,100 SH   SOLE   554,100 0 0
HUDBAY MINERALS INC COM 443628102 100,110 27,729,120 SH   SOLE   27,729,120 0 0
IMPINJ INC COM 453204109 18,853 611,500 SH   SOLE   611,500 0 0
INNERWORKINGS INC COM 45773Y105 6,242 1,408,976 SH   SOLE   1,408,976 0 0
INSTALLED BLDG PRODS INC COM 45780R101 27,042 471,612 SH   SOLE   471,612 0 0
INTREXON CORP COM 46122T102 3,859 674,600 SH   SOLE   674,600 0 0
KIMCO RLTY CORP COM 49446R109 17,727 849,000 SH   SOLE   849,000 0 0
LENNAR CORP CL A 526057104 10,708 191,726 SH   SOLE   191,726 0 0
LIBERTY OILFIELD SVCS INC COM CL A 53115L104 22,551 2,082,235 SH   SOLE   2,082,235 0 0
LKQ CORP COM 501889208 32,526 1,034,210 SH   SOLE   1,034,210 0 0
MACROGENICS INC COM 556099109 17,118 1,341,500 SH   SOLE   1,341,500 0 0
MAKEMYTRIP LIMITED MAURITIUS SHS V5633W109 35,079 1,546,006 SH   SOLE   1,546,006 0 0
MCDERMOTT INTL INC COM 580037703 337 166,883 SH   SOLE   166,883 0 0
MEREDITH CORP COM 589433101 4,870 132,832 SH   SOLE   132,832 0 0
MGM RESORTS INTERNATIONAL COM 552953101 47,895 1,727,810 SH   SOLE   1,727,810 0 0
MILLENDO THERAPEUTICS INC COM 60040X103 380 53,419 SH   SOLE   53,419 0 0
MINERVA NEUROSCIENCES INC COM 603380106 4,682 604,087 SH   SOLE   604,087 0 0
NATIONAL BEVERAGE CORP COM 635017106 22,247 501,500 SH   SOLE   501,500 0 0
NATURAL GROCERS BY VITAMIN C COM 63888U108 187 18,745 SH   SOLE   18,745 0 0
NOMAD FOODS LTD USD ORD SHS G6564A105 20,725 1,010,996 SH   SOLE   1,010,996 0 0
NORWEGIAN CRUISE LINE HLDG L SHS G66721104 52,075 1,005,900 SH   SOLE   1,005,900 0 0
NUANCE COMMUNICATIONS INC COM 67020Y100 22,624 1,387,126 SH   SOLE   1,387,126 0 0
OASIS PETE INC NEW COM 674215108 12,681 3,664,924 SH   SOLE   3,664,924 0 0
OBSIDIAN ENERGY LTD COM 674482203 150 180,012 SH   SOLE   180,012 0 0
OPTINOSE INC COM 68404V100 1,463 209,000 SH   SOLE   209,000 0 0
PIONEER NAT RES CO COM 723787107 11,282 89,700 SH   SOLE   89,700 0 0
PLANTRONICS INC NEW COM 727493108 9,588 256,900 SH   SOLE   256,900 0 0
R1 RCM INC COM 749397105 9,928 1,111,800 SH   SOLE   1,111,800 0 0
RED ROBIN GOURMET BURGERS IN COM 75689M101 3,429 103,095 SH   SOLE   103,095 0 0
SEACHANGE INTL INC COM 811699107 110 38,180 SH   SOLE   38,180 0 0
SHOE CARNIVAL INC COM 824889109 24,048 741,983 SH   SOLE   741,983 0 0
ST JOE CO COM 790148100 3,364 196,374 SH   SOLE   196,374 0 0
STEREOTAXIS INC COM NEW 85916J409 444 126,581 SH   SOLE   126,581 0 0
SUMMIT MATLS INC CL A 86614U100 65,120 2,933,325 SH   SOLE   2,933,325 0 0
TAKEDA PHARMACEUTICAL CO LTD SPONSORED ADS 874060205 54,222 3,152,470 SH   SOLE   3,152,470 0 0
TECK RESOURCES LTD CL B 878742204 67,608 4,165,630 SH   SOLE   4,165,630 0 0
TORONTO DOMINION BK ONT COM NEW 891160509 231 3,960 SH   SOLE   3,960 0 0
TRUEBLUE INC COM 89785X101 41,165 1,950,957 SH   SOLE   1,950,957 0 0
U S CONCRETE INC COM NEW 90333L201 18,452 333,800 SH   SOLE   333,800 0 0
UNDER ARMOUR INC CL C 904311206 11,324 624,598 SH   SOLE   624,598 0 0
UNDER ARMOUR INC CL A 904311107 8,835 443,100 SH   SOLE   443,100 0 0
VIAD CORP COM NEW 92552R406 33,317 496,159 SH   SOLE   496,159 0 0
VMWARE INC CL A COM 928563402 20,578 137,130 SH   SOLE   137,130 0 0
WHITING PETE CORP NEW COM NEW 966387409 10,777 1,342,095 SH   SOLE   1,342,095 0 0
YIELD10 BIOSCIENCE INC COM NEW 98585K201 17 33,559 SH   SOLE   33,559 0 0
ZIX CORP COM 98974P100 176 24,250 SH   SOLE   24,250 0 0