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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
6151 PRICELINE GRP INC 1,112 4,281,000 0.50% Call
6152 GOOGLE INC 7,826 4,288,000 0.50%
6153 PROSHARES TR II 5,616 4,450,000 0.52% Put
6154 WALGREENS BOOTS ALLIANCE INC 55,207 4,674,000 0.54%
6155 MICRON TECHNOLOGY INC 174,992 4,747,000 0.55%
6156 CELGENE CORP 41,185 4,747,000 0.55%
6157 NETFLIX INC 2,553 4,954,000 0.58% Put
6158 ALIBABA GROUP HLDG LTD 6,474 5,033,000 0.59% Put
6159 ISHARES TR 11,837 5,148,000 0.60% Call
6160 RALPH LAUREN CORP 39,679 5,217,000 0.61%
6161 GOOGLE INC 3,588 5,289,000 0.62% Call
6162 CATAMARAN CORP COM 92,291 5,495,000 0.64%
6163 GOOGLE INC 3,750 5,771,000 0.67% Put
6164 GOPRO INC 4,305 5,775,000 0.67% Put
6165 SPDR S&P 500 ETF Call Opt 09/17 260.0 14,886 5,832,000 0.68% Call
6166 TESLA INC PUT 4,439 5,923,000 0.69% Put
6167 PROCTER AND GAMBLE CO 72,651 5,953,000 0.69%
6168 AMAZON COM INC 3,383 6,283,000 0.73% Call
6169 WAL-MART STORES INC 78,814 6,482,000 0.75%
6170 GOLDMAN SACHS GROUP INC 38,591 7,253,000 0.84%
6171 SPDR S&P 500 ETF TR PUT 19,296 7,888,000 0.92% Put
6172 MCDONALDS CORP 87,434 8,519,000 0.99%
6173 INTEL CORP 291,383 9,111,000 1.06%
6174 SPDR S&P 500 ETF TR 47,905 9,889,000 1.15%
6175 ALIBABA GROUP HLDG LTD 119,193 9,921,000 1.15%
6176 BERKSHIRE HATHAWAY INC DEL 85,180 12,293,000 1.43%
6177 APPLE INC CALL 16,048 15,942,000 1.85% Call
6178 ISHARES NASDAQ BIOTECHNOLOGY ETF 66,848 37,080,000 4.31%
Page 124 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.