Dark
Light
System
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 (2015Q3)
Portfolio Summary: 6,775 holdings with a total value of $1,364,151,000.
#
Name
Shares
Value ($)
%
Options
Notes
201 IDEX CORP 12 0 0.00% Call
202 SONIC CORP 6 0 0.00% Call
203 UTSTARCOM HOLDINGS CORP 25 0 0.00% Call
204 ANWORTH MORTGAGE ASSET CP 1 0 0.00% Call
205 LKQ CORP 7 0 0.00% Call
206 MARKETO INC 5 0 0.00% Put
207 HOUGHTON MIFFLIN HARCOURT CO 10 0 0.00% Call
208 CHINA RECYCLING ENERGY CORP 22 0 0.00% Call
209 MSC INDL DIRECT INC 5 0 0.00% Call
210 HEALTHCARE RLTY TR 2 0 0.00% Call
211 CENTRAL EUROPEAN MEDIA ENTRP 7 0 0.00% Call
212 ChinaCache International Holdi 54 0 0.00%
213 STEPAN CO 21 0 0.00% Call
214 ENCORE CAP GROUP INC 1 0 0.00% Call
215 UNI PIXEL INC 5 0 0.00% Call
216 WHITING USA TR II 1 0 0.00% Put
217 MINDBODY INC 1 0 0.00% Call
218 BBVA BANCO FRANCES S A 9 0 0.00% Call
219 DURECT CORP 18 0 0.00% Call
220 VERASTEM INC 1 0 0.00% Call
221 CAMDEN PPTY TR 7 0 0.00% Call
222 INTERNATIONAL FLAVORS&FRAGRA 1 0 0.00% Call
223 RENT A CENTER INC-NEW 32 0 0.00%
224 NEW YORK TIMES CO 1 0 0.00%
225 KRATOS DEFENSE & SEC SOLUTIO 11 0 0.00% Call
226 CECO ENVIRONMENTAL CORP 17 0 0.00% Call
227 ARC DOCUMENT SOLUTIONS INC 2 0 0.00% Call
228 ADECOAGRO S A 1 0 0.00% Put
229 THOMPSON CREEK METALS CO INC 3 0 0.00% Call
230 COLUMBIA SPORTSWEAR CO 1 0 0.00% Call
231 SUPERCONDUCTOR TECHNOLOGIES 200 0 0.00%
232 ACURA PHARMACEUTICALS INC 100 0 0.00%
233 KB FINANCIAL GROUP INC 3 0 0.00% Call
234 OM GROUP INC 52 0 0.00% Call
235 BLUE BUFFALO PET PRODS INC 1 0 0.00% Call
236 GREEN DOT CORP 5 0 0.00% Put
237 ARBUTUS BIOPHARMA CORP 41 0 0.00% Call
238 MANULIFE FINL CORP 4 0 0.00% Call
239 ENTRAVISION COMMUNICATIONS C 22 0 0.00% Call
240 COMSCORE INC 4 0 0.00% Call
241 MERCURY SYS INC COM 24 0 0.00%
242 LIFEPOINT HEALTH INC 3 0 0.00% Call
243 BLACK HILLS CORP 6 0 0.00% Call
244 COMFORT SYS USA INC 3 0 0.00% Put
245 ELIZABETH ARDEN INC 1 0 0.00% Put
246 BLUEKNIGHT ENERGY PARTNERS LCOM UNIT 100 0 0.00%
247 UNIVERSAL CORP VA 5 0 0.00% Call
248 TONIX PHARMACEUTICALS HLDG C 24 0 0.00% Call
249 COMMVAULT SYSTEMS INC 22 0 0.00% Call
250 TANGER FACTORY OUTLET CTRS I 1 0 0.00% Call
Page 5 of 136

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001488542-15-000012, filed 2015.10.08).

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.