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Institutional Investment Manager
SIMPLEX TRADING, LLC
SIMPLEX TRADING, LLC (CIK: 0001488542) incorporated in Delaware, located at 230 S. Lasalle Street, Chicago, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 6,178 holdings with a total value of $859,885,000.
#
Name
Shares
Value ($)
%
Options
Notes
6101 VMWARE INC 26,246 2,152,000 0.25%
6102 AMAZON.COM INC 4,249 2,198,000 0.26% Put
6103 INTERCEPT PHARMACEUTICALS INCORPORATED 7,929 2,236,000 0.26%
6104 FIREEYE INC 58,092 2,280,000 0.27%
6105 AMERICAN AIRLS GROUP INC 4,111 2,288,000 0.27% Call
6106 WYNN RESORTS LTD 934 2,321,000 0.27% Put
6107 ISHARES TR 29,522 2,341,000 0.27%
6108 TWITTER INC 5,012 2,370,000 0.28% Call
6109 DIREXION SHS ETF TR 6,091 2,470,000 0.29% Call
6110 DIREXION SHS ETF TR 3,447 2,476,000 0.29% Put
6111 TIME WARNER INC NEW 16,935 2,538,000 0.30%
6112 IONIS PHARMACEUTICAL 40,248 2,562,000 0.30%
6113 DU PONT E I DE NEMOURS & CO 36,142 2,583,000 0.30%
6114 WESTERN DIGITAL CORP 28,592 2,602,000 0.30%
6115 ISHARES TR 7,646 2,625,000 0.31%
6116 FACEBOOK INC 32,819 2,698,000 0.31%
6117 YAHOO INC 61,009 2,710,000 0.32%
6118 SALIX PHARMACEUTICALS INC 3,968 2,757,000 0.32% Call
6119 PROSHARES TR II 7,492 2,814,000 0.33% Call
6120 KINDER MORGAN INC DEL 67,228 2,827,000 0.33%
6121 Market Vector Junior 125,426 2,847,000 0.33%
6122 MICROSOFT CORP 70,264 2,856,000 0.33%
6123 BIOGEN INC 6,826 2,882,000 0.34%
6124 CATERPILLAR INC 36,123 2,890,000 0.34%
6125 WISDOMTREE TR 53,175 2,931,000 0.34%
6126 TWITTER INC 59,038 2,956,000 0.34%
6127 SKYWORKS SOLUTIONS INC 1,735 3,049,000 0.35% Call
6128 BOEING CO 20,423 3,065,000 0.36%
6129 BIOGEN INC 642 3,068,000 0.36% Call
6130 FACEBOOK INC 7,283 3,132,000 0.36% Call
6131 UNITEDHEALTH GROUP INC 26,609 3,147,000 0.37%
6132 Intuit Inc 12,655 3,161,000 0.37%
6133 NETFLIX INC 7,603 3,168,000 0.37%
6134 ACTAVIS PLC 1,445 3,170,000 0.37% Call
6135 QUALCOMM INC 48,185 3,341,000 0.39%
6136 SCHLUMBERGER LTD 40,409 3,371,000 0.39%
6137 APPLE INC 8,555 3,433,000 0.40% Put
6138 CHIPOTLE MEXICAN GRILL INC 5,326 3,464,000 0.40%
6139 NETFLIX INC 2,624 3,551,000 0.41% Call
6140 TESLA MTRS INC 4,188 3,559,000 0.41% Call
6141 ILLUMINA INC 19,269 3,577,000 0.42%
6142 KRAFT FOODS GROUP INC 2,362 3,584,000 0.42% Call
6143 ABBVIE INC 63,011 3,688,000 0.43%
6144 CELGENE CORP 3,894 3,692,000 0.43% Call
6145 SPDR S&P MIDCAP 400 ETF TR 13,341 3,698,000 0.43%
6146 PHARMACYCLICS INC 799 3,714,000 0.43% Call
6147 SKYWORKS SOLUTIONS INC 38,154 3,750,000 0.44%
6148 TRW AUTOMOTIVE HLDGS CORP 35,777 3,751,000 0.44%
6149 ISHARES TR 17,479 3,817,000 0.44% Put
6150 ANADARKO PETE CORP 49,250 4,078,000 0.47%
Page 123 of 124

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001488542-15-000006, filed 2015.04.21).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.