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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 JABIL CIRCUIT INC 5 0 0.00% Call
52 MOSYS INC 10 0 0.00%
53 IRIDIUM COMMUNICATIONS INC 1 0 0.00% Put
54 HUGOTON RTY TR TEX 17 0 0.00% Call
55 MERGE HEALTHCARE INC CMN STOCK 1 0 0.00% Put
56 ETFS SILVER TR 1 0 0.00% Call
57 CHINA AUTOMOTIVE SYS INC 10 0 0.00% Put
58 STATOIL ASA 9 0 0.00% Call
59 SKYWEST INC 1 0 0.00% Call
60 HURON CONSULTING GROUP INC 3 0 0.00% Put
61 FUELCELL ENERGY INC 14 0 0.00% Put
62 HERSHA HOSPITALITY TR 1 0 0.00%
63 AG MTG INVT TR INC 2 0 0.00% Put
64 DIGITAL RLTY TR INC 2 0 0.00% Call
65 CHINACACHE INTL HLDG LTD 63 0 0.00% Put
66 SCHOLASTIC CORP 1 0 0.00% Put
67 KCG HLDGS INC 1 0 0.00% Call
68 China Sunergy Co Ltd 188 0 0.00%
69 ATLANTIC PWR CORP 1 0 0.00% Call
70 SCOTTS MIRACLE GRO CO 2 0 0.00% Call
71 EQT CORP 35 0 0.00% Put
72 FORTUNA SILVER MINES INC 5 0 0.00% Call
73 BRUNSWICK CORP 3 0 0.00% Call
74 REPUBLIC AWYS HLDGS INC 2 0 0.00% Call
75 SUNSHINE HEART INC 2 0 0.00% Call
76 TRI POINTE GROUP INC 16 0 0.00% Call
77 SANMINA CORPORATION 4 0 0.00% Call
78 AUTONATION INC 21 0 0.00% Put
79 CALAVO GROWERS INC 3 0 0.00% Put
80 BLACKSTONE MTG TR INC 1 0 0.00% Call
81 ROSETTA GENOMICS LTD 3 0 0.00% Call
82 INTREPID POTASH INC 8 0 0.00% Call
83 CURIS INC 4 0 0.00% Call
84 MENTOR GRAPHICS CORP 2 0 0.00% Call
85 BON-TON STORES INC 1 0 0.00% Call
86 COUPONS COM INC 19 0 0.00%
87 FORMFACTOR INC 10 0 0.00% Call
88 PERCEPTRON INC 1 0 0.00% Put
89 INGREDION INC 1 0 0.00% Put
90 MARINEMAX INC 1 0 0.00% Call
91 LKQ CORP 18 0 0.00% Call
92 MARKETO INC 1 0 0.00% Put
93 LIGHTINTHEBOX HLDG CO LTD SPONSORED ADR 193 0 0.00%
94 FIBRIA CELULOSE S A 1 0 0.00% Call
95 AMERICAN AXLE & MFG HLDGS IN 2 0 0.00% Put
96 RESOURCES CONNECTION INC 6 0 0.00% Put
97 DURECT CORP 50 0 0.00% Call
98 VERASTEM INC 1 0 0.00% Call
99 THOMPSON CREEK METALS CO INC 4 0 0.00% Call
100 CHINA UNICOM (HONG KONG) LTD 10 0 0.00% Call
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.