| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 10,567,686 | $292,408 |
| GROUP ONE TRADING, L.P. | 3,756,119 | $103,932 |
| Cetera Investment Advisers | 3,572,063 | $98,839 |
| UBS Group AG | 1,147,074 | $31,740 |
| LPL Financial LLC | 1,114,267 | $30,832 |
| MORGAN STANLEY | 1,075,640 | $29,763 |
| Electrum Group LLC | 1,052,615 | $29,126 |
| ONE PLUS ONE WEALTH MANAGEMENT, LLC | 790,379 | $21,870 |
| SUMMIT SECURITIES GROUP LLC | 784,700 | $21,713 |
| TORNO CAPITAL, LLC | 620,500 | $17,169 |
| Grand Central Investment Group | 563,762 | $15,599 |
| JANE STREET GROUP, LLC | 418,975 | $11,593 |
| SIMPLEX TRADING, LLC | 418,618 | $11,583 |
| MAINSTAY CAPITAL MANAGEMENT LLC /ADV | 394,857 | $10,926 |
| FNY Investment Advisers, LLC | 385,100 | $11 |
| STIFEL FINANCIAL CORP | 306,784 | $8,489 |
| Federation des caisses Desjardins du Quebec | 303,948 | $8,410 |
| Kovack Advisors, Inc. | 302,419 | $8,368 |
| London & Capital Asset Management Ltd | 300,000 | $8,298 |
| HOHIMER WEALTH MANAGEMENT, LLC | 298,490 | $8,259 |
| WIT Partners Advisory Pte. Ltd. | 294,639 | $7,745 |
| Arkos Global Advisors | 286,200 | $8 |
| INSIGNEO ADVISORY SERVICES, LLC | 270,511 | $7,485 |
| Kingsview Wealth Management, LLC | 268,193 | $7,421 |
| Nokomis Capital, L.L.C. | 258,634 | $7,156 |
| Vontobel Holding Ltd. | 251,000 | $6,945 |
| TWO SIGMA INVESTMENTS, LP | 245,200 | $6,785 |
| NWAM LLC | 229,166 | $8,213 |
| Corecam Pte. Ltd. | 207,000 | $5,728 |
| COMMONWEALTH EQUITY SERVICES, LLC | 202,261 | $5,597 |
| Toroso Investments, LLC | 194,303 | $5,376 |
| Summit Financial, LLC | 194,000 | $5,368 |
| Riggs Asset Managment Co. Inc. | 186,965 | $5,173 |
| CMC Financial Group | 184,759 | $5,112 |
| Client First Investment Management LLC | 168,202 | $4,654 |
| Chicago Partners Investment Group LLC | 162,000 | $6,276 |
| ROYAL BANK OF CANADA | 157,547 | $4,360 |
| PARSONS CAPITAL MANAGEMENT INC/RI | 154,363 | $4,271 |
| HighTower Advisors, LLC | 151,063 | $4,180 |
| RAYMOND JAMES FINANCIAL INC | 132,563 | $3,668 |
| Waratah Capital Advisors Ltd. | 131,400 | $3,636 |
| OSAIC HOLDINGS, INC. | 117,974 | $3,265 |
| SPROTT INC. | 107,392 | $2,972 |
| Belvedere Trading LLC | 105,906 | $2,930 |
| RPg Family Wealth Advisory, LLC | 104,554 | $2,893 |
| Risk Paradigm Group, LLC | 104,554 | $2,893 |
| Brookwood Investment Group LLC | 103,336 | $2,859 |
| PCG Wealth Advisors, LLC | 103,333 | $2,859 |
| Corecam AG | 101,050 | $2,796 |
| CITIGROUP INC | 100,000 | $2,767 |
| LMR Partners LLP | 97,000 | $2,684 |
| Apriem Advisors | 95,000 | $2,629 |
| Heartwood Wealth Advisors LLC | 87,716 | $2,427 |
| Asset One Wealth Management LLC | 85,316 | $2,689 |
| Ursa Fund Management, LLC | 81,500 | $2,255 |
| BANK OF AMERICA CORP /DE/ | 77,736 | $2,151 |
| COMERICA BANK | 75,988 | $2,103 |
| Pekin Hardy Strauss, Inc. | 74,279 | $2,055 |
| RIA Advisory Group LLC | 72,954 | $2,019 |
| Cambridge Investment Research Advisors, Inc. | 72,944 | $2 |
| VERUS CAPITAL PARTNERS, LLC | 72,500 | $2,006 |
| B. Riley Wealth Advisors, Inc. | 71,548 | $1,980 |
| Lombard Odier Asset Management (USA) Corp | 64,288 | $1,779 |
| Jump Financial, LLC | 61,801 | $1,710 |
| OneDigital Investment Advisors LLC | 59,354 | $1,642 |
| WEXFORD CAPITAL LP | 56,637 | $1,567 |
| Fielder Capital Group LLC | 55,876 | $1,546 |
| MONETA GROUP INVESTMENT ADVISORS LLC | 49,339 | $1,365 |
| ENVESTNET ASSET MANAGEMENT INC | 48,786 | $1,350 |
| Prospera Financial Services Inc | 48,340 | $1,338 |
| HOLLENCREST CAPITAL MANAGEMENT | 45,708 | $1,265 |
| 180 WEALTH ADVISORS, LLC | 43,608 | $1,207 |
| Stratos Wealth Partners, LTD. | 43,465 | $1,203 |
| Private Advisor Group, LLC | 42,194 | $1,168 |
| HRT FINANCIAL LP | 42,036 | $1 |
| Tactive Advisors, LLC | 41,665 | $1,153 |
| Farther Finance Advisors, LLC | 40,304 | $1,115 |
| HARBOUR INVESTMENTS, INC. | 39,113 | $1,082 |
| Rossby Financial, LCC | 38,700 | $1,071 |
| Western Wealth Management, LLC | 36,311 | $1,005 |
| Jefferies Financial Group Inc. | 35,000 | $968 |
| Rathbones Group PLC | 34,550 | $956 |
| Financially Speaking Inc | 32,990 | $913 |
| New Harbor Financial Group, LLC | 31,307 | $866 |
| SILVER OAK SECURITIES, INCORPORATED | 31,107 | $875 |
| ABBINGTON INVESTMENT GROUP | 30,733 | $850 |
| Kestra Advisory Services, LLC | 27,936 | $773 |
| ANGELES WEALTH MANAGEMENT, LLC | 27,928 | $773 |
| Advisory Services Network, LLC | 27,807 | $769 |
| Scientech Research LLC | 27,480 | $760 |
| IMC-Chicago, LLC | 27,244 | $754 |
| Integrated Wealth Concepts LLC | 26,999 | $747 |
| Capula Management Ltd | 25,634 | $709 |
| Guild Investment Management, Inc. | 23,850 | $660 |
| Quantinno Capital Management LP | 22,000 | $609 |
| Mariner, LLC | 20,369 | $564 |
| Cerity Partners LLC | 20,300 | $562 |
| MML INVESTORS SERVICES, LLC | 20,241 | $560 |
| MGO ONE SEVEN LLC | 19,447 | $538 |
| Pettinga Financial Advisors, LLC | 18,626 | $515 |
| 97 other institutions | 656,383 | $17,652 |