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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
51 BOEING CO 20,423 3,065,000 0.36%
52 SKYWORKS SOLUTIONS INC 1,735 3,049,000 0.35% Call
53 TWITTER INC 59,038 2,956,000 0.34%
54 WISDOMTREE TR 53,175 2,931,000 0.34%
55 CATERPILLAR INC 36,123 2,890,000 0.34%
56 BIOGEN INC 6,826 2,882,000 0.34%
57 MICROSOFT CORP 70,264 2,856,000 0.33%
58 Market Vector Junior 125,426 2,847,000 0.33%
59 KINDER MORGAN INC DEL 67,228 2,827,000 0.33%
60 PROSHARES TR II 7,492 2,814,000 0.33% Call
61 SALIX PHARMACEUTICALS INC 3,968 2,757,000 0.32% Call
62 YAHOO INC 61,009 2,710,000 0.32%
63 FACEBOOK INC 32,819 2,698,000 0.31%
64 ISHARES TR 7,646 2,625,000 0.31%
65 WESTERN DIGITAL CORP 28,592 2,602,000 0.30%
66 DU PONT E I DE NEMOURS & CO 36,142 2,583,000 0.30%
67 IONIS PHARMACEUTICAL 40,248 2,562,000 0.30%
68 TIME WARNER INC NEW 16,935 2,538,000 0.30%
69 DIREXION SHS ETF TR 3,447 2,476,000 0.29% Put
70 DIREXION SHS ETF TR 6,091 2,470,000 0.29% Call
71 TWITTER INC 5,012 2,370,000 0.28% Call
72 ISHARES TR 29,522 2,341,000 0.27%
73 WYNN RESORTS LTD 934 2,321,000 0.27% Put
74 AMERICAN AIRLS GROUP INC 4,111 2,288,000 0.27% Call
75 FIREEYE INC 58,092 2,280,000 0.27%
76 INTERCEPT PHARMACEUTICALS INCORPORATED 7,929 2,236,000 0.26%
77 AMAZON.COM INC 4,249 2,198,000 0.26% Put
78 VMWARE INC 26,246 2,152,000 0.25%
79 GOPRO INC 48,507 2,105,000 0.24%
80 ISHARES IBOXX $ HIGH YIELD CORPORATE BOND ETF 23,215 2,103,000 0.24%
81 CHICAGO BRIDGE & IRON CO N V 42,460 2,091,000 0.24%
82 GRAINGER W W INC 8,729 2,058,000 0.24%
83 HCA HOLDINGS INC 26,933 2,026,000 0.24%
84 WHITING PETE CORP NEW 65,598 2,026,000 0.24%
85 GILEAD SCIENCES INC 5,879 1,973,000 0.23% Put
86 ALIBABA GROUP HLDG LTD 9,222 1,963,000 0.23% Call
87 TIFFANY & CO NEW 22,125 1,947,000 0.23%
88 KEURIG GREEN MTN INC 17,346 1,938,000 0.23%
89 HOSPIRA INC. 21,626 1,899,000 0.22%
90 BAIDU INC 8,997 1,874,000 0.22%
91 3M CO 11,245 1,854,000 0.22%
92 Call GILD $70.0 Exp Jun 16, 2017 6,737 1,837,000 0.21% Call
93 CATERPILLAR INC DEL PUT 2,173 1,830,000 0.21% Put
94 PEPSICO INC 19,018 1,818,000 0.21%
95 TRANSOCEAN LTD 2,103 1,806,000 0.21% Put
96 Put FB $140.0 Exp Jun 16, 2017 4,717 1,783,000 0.21% Put
97 DISNEY WALT CO 16,969 1,779,000 0.21%
98 CHICAGO BRIDGE & IRON CO N V 1,333 1,768,000 0.21% Put
99 PUBLIC STORAGE 8,758 1,726,000 0.20%
100 SANDISK CORP 1,306 1,725,000 0.20% Put
Page 2 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.