Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Gilead Sciences
GILD
|
+$17.3M |
| 2 |
Apple
AAPL
|
+$15.2M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$14.9M |
| 4 |
Booking.com
BKNG
|
+$14.7M |
| 5 |
Wells Fargo
WFC
|
+$12.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$38.3M |
| 2 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$30.7M |
| 3 |
LNKD
LinkedIn Corporation
LNKD
|
+$15.2M |
| 4 |
CELG
Celgene Corp
CELG
|
+$12.6M |
| 5 |
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
|
+$10.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 8.39% |
| 2 | Healthcare | 8.28% |
| 3 | Consumer Discretionary | 6.84% |
| 4 | Technology | 6.06% |
| 5 | Financials | 4.39% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1301
PUT
Dollar Tree
DLTR
$22.6B
| $137K | 0.01% |
323
+22
| +7% | +$1.98K |
|
1302
Jabil
JBL
$33.7B
| $137K | 0.01% |
+6,324
| New | +$132K |
|
|
SAGE
1303
DELISTED
Sage Therapeutics
SAGE
| $137K | 0.01% |
2,984
-24,986
| -89% | -$1.02M |
|
|
SCU
1304
DELISTED
Sculptor Capital Management, Inc. Class A Common Stock
SCU
| $137K | 0.01% |
3,171
+132
| +4% | +$4.98K |
|
|
TIF
1305
PUT
DELISTED
Tiffany & Co.
TIF
| $137K | 0.01% |
462
-429
| -48% | -$28.6K |
|
1306
CALL
Align Technology
ALGN
$12B
| $136K | 0.01% |
162
+67
| +71% | +$6.06K |
|
1307
PUT
APA Corp
APA
$12.9B
| $136K | 0.01% |
1,439
+613
| +74% | +$33.5K |
|
|
CMCM
1308
Cheetah Mobile
CMCM
$89.4M
| $136K | 0.01% |
2,193
+2,062
| +1,574% | +$119K |
|
1309
Cheniere Energy
CQP
$31.9B
| $136K | 0.01% |
+4,654
| New | +$129K |
|
1310
PUT
American International
AIG
$41.4B
| $135K | 0.01% |
1,284
+379
| +42% | +$21.7K |
|
1311
PUT
Capital One
COF
$123B
| $135K | 0.01% |
1,062
-234
| -18% | -$16.1K |
|
1312
PUT
Fossil Group
FOSL
$236M
| $135K | 0.01% |
337
+157
| +87% | +$4.64K |
|
1313
CALL
Marriott International
MAR
$96.1B
| $135K | 0.01% |
494
-205
| -29% | -$14.5K |
|
1314
PUT
Texas Instruments
TXN
$260B
| $135K | 0.01% |
2,050
+1,044
| +104% | +$71.2K |
|
1315
Apollo Global Management
APO
$68.6B
| $134K | 0.01% |
7,466
-3,958
| -35% | -$69.4K |
|
1316
ProShares UltraShort FTSE Europe
EPV
$11.8M
| $134K | 0.01% |
+530
| New | +$140K |
|
1317
iShares S&P Small-Cap 600 Value ETF
IJS
$8.1B
| $134K | 0.01% |
+2,160
| New | +$133K |
|
1318
CALL
Spectrum Brands
SPB
$2.01B
| $134K | 0.01% |
44
+18
| +69% | +$2.29K |
|
1319
CALL
Steel Dynamics
STLD
$34.7B
| $134K | 0.01% |
1,560
-76
| -5% | -$1.94K |
|
1320
CALL
State Street
STT
$50.6B
| $134K | 0.01% |
524
+311
| +146% | +$20.3K |
|
1321
PUT
TripAdvisor
TRIP
$1.57B
| $134K | 0.01% |
215
-322
| -60% | -$20.7K |
|
1322
PUT
BHP
BHP
$212B
| $133K | 0.01% |
914
-857
| -48% | -$23.5K |
|
1323
Bankunited
BKU
$3.41B
| $133K | 0.01% |
4,410
+1,005
| +30% | +$30.8K |
|
1324
Cenovus Energy
CVE
$55.4B
| $133K | 0.01% |
+9,295
| New | +$133K |
|
1325
iShares MSCI Australia ETF
EWA
$1.33B
| $133K | 0.01% |
6,399
+5,775
| +925% | +$118K |
|
Similar funds
Simplex Trading's Q3 2016 Portfolio in Review
As of Q3 2016, Simplex Trading held 7,235 positions worth $1.48B, down 1.4% from $1.5B the previous quarter. Its ten largest holdings account for 18% of the portfolio.
Simplex Trading withdrew a net $87.1M in Q3 2016, closing 1,479 positions and reducing 1,939 holdings. Its most notable exit was SPDR Gold Trust, an estimated $38.3M position sold in full.
By sector, the portfolio is most concentrated in Communication Services at 8.4% of assets, up from 6.6% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Simplex Trading opened a new position in Booking.com worth $15.6M.
- Simplex Trading's largest Q3 2016 buy was Booking.com: 264,225 shares worth $15.6M.
- Simplex Trading added most to Gilead Sciences in Q3 2016, an estimated $17.3M increase.
- Simplex Trading's biggest Q3 2016 reduction was LinkedIn Corporation, cutting an estimated $15.2M.
- Simplex Trading fully exited SPDR Gold Trust in Q3 2016, selling an estimated $38.3M.
- Simplex Trading's ten largest holdings make up 18% of its $1.48B portfolio in Q3 2016.
- Simplex Trading opened 1,460 new positions and closed 1,479 in Q3 2016.
- Simplex Trading's portfolio value fell 1.4% quarter-over-quarter to $1.48B.
Based on Simplex Trading's 13F filing for Q3 2016, filed 7 Oct 2016.