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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
201 SELECT SECTOR SPDR TR 4,279 825,000 0.10% Put
202 AMERICAN TOWER CORP NEW 8,753 824,000 0.10%
203 GOLDMAN SACHS GROUP INC 1,948 821,000 0.10% Put
204 ATHENA HEALTH INC. 6,865 819,000 0.10%
205 ZILLOW GROUP INC 8,125 814,000 0.09%
206 SPLUNK INC 13,752 814,000 0.09%
207 ROYAL BK CDA MONTREAL QUE 13,478 813,000 0.09%
208 SPDR SERIES TRUST 22,043 812,000 0.09%
209 MALLINCKRODT PUB LTD CO 6,372 807,000 0.09%
210 SPDR GOLD TRUST 1,046 805,000 0.09% Put
211 ANACOR PHARMACEUTICALS INC 380 804,000 0.09% Call
212 3-D SYS CORP DEL 872 802,000 0.09% Put
213 MOLSON COORS BREWING CO 10,730 798,000 0.09%
214 SPDR SERIES TRUST 7,817 789,000 0.09%
215 FORTRESS INVESTMENT GROUP LL 97,551 787,000 0.09%
216 STRATASYS LTD 434 773,000 0.09% Put
217 COCA COLA CO 2,057 765,000 0.09% Call
218 CURRENCYSHARES EURO TR 7,228 764,000 0.09%
219 PHILIP MORRIS INTL INC 833 762,000 0.09% Put
220 BAXTER INTL INC 11,098 760,000 0.09%
221 ISHARES 1,793 760,000 0.09% Put
222 VALEANT PHARMACEUTICALS INTL 3,825 759,000 0.09%
223 FIRST REP BK SAN FRANCISCO C 13,175 752,000 0.09%
224 DISCOVER FINL SVCS 13,247 746,000 0.09%
225 BLACKBERRY LTD 83,393 744,000 0.09%
226 DIREXION DAILY GOLD MINERS BUL 78,913 743,000 0.09%
227 AMBARELLA INC 383 739,000 0.09% Call
228 Hewlett Packard Co 23,680 737,000 0.09%
229 SIGMA ALDRICH 5,325 736,000 0.09%
230 STANLEY BLACK &DECKER INC 7,728 736,000 0.09%
231 AGRIUM INC 7,013 731,000 0.09%
232 RSX - Market Vectors Russia ETF 42,947 731,000 0.09%
233 CVS HEALTH CORP 1,099 730,000 0.08% Call
234 JOHNSON & JOHNSON 7,182 722,000 0.08%
235 MARKET VECTORS ETF TR 2,169 716,000 0.08% Put
236 PALO ALTO NETWORKS INC 416 708,000 0.08% Call
237 SPDR SERIES TRUST 3,249 702,000 0.08% Call
238 Esperion Therapeutics Inc 7,410 686,000 0.08%
239 STARBUCKS CORP 7,201 681,000 0.08%
240 BP PLC 742 680,000 0.08% Put
241 UNITED CONTL HLDGS INC 1,261 676,000 0.08% Call
242 NETAPP INC 18,814 667,000 0.08%
243 PVH CORPORATION 6,240 664,000 0.08%
244 UNION PAC CORP 1,366 658,000 0.08% Put
245 SCHLUMBERGER LTD 3,153 654,000 0.08% Put
246 BROOKDALE SR LIVING INC 17,307 653,000 0.08%
247 POWERSHARES QQQ TRUST 1,649 647,000 0.08% Call
248 AMERICAN EXPRESS CO 1,503 646,000 0.08% Put
249 MASTERCARD INCORPORATED 786 643,000 0.07% Put
250 YAHOO INC 1,046 637,000 0.07% Call
Page 5 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.