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
| 1 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$16.3M |
| 3 |
Walt Disney
DIS
|
+$13.9M |
| 4 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.4M |
| 5 |
Gilead Sciences
GILD
|
+$10.4M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$95.3M |
| 2 |
Apple
AAPL
|
+$21.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$20M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$12.1M |
Sector Composition
| 1 | Healthcare | 13.63% |
| 2 | Communication Services | 9.81% |
| 3 | Consumer Discretionary | 9.7% |
| 4 | Technology | 9.67% |
| 5 | Financials | 9.48% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1351
Carpenter Technology
CRS
$12B
| $12K | ﹤0.01% |
+420
| New | +$12K |
|
1352
FirstEnergy
FE
$25.3B
| $12K | ﹤0.01% |
+407
| New | +$12K |
|
1353
Innospec
IOSP
$2.05B
| $12K | ﹤0.01% |
267
+39
| +17% | +$1.75K |
|
1354
iShares Micro-Cap ETF
IWC
$948M
| $12K | ﹤0.01% |
+174
| New | +$12K |
|
1355
Mine Safety
MSA
$6.63B
| $12K | ﹤0.01% |
+308
| New | +$12K |
|
1356
NGL Energy Partners
NGL
$740M
| $12K | ﹤0.01% |
+625
| New | +$12K |
|
1357
Stepan Co
SCL
$1.09B
| $12K | ﹤0.01% |
+301
| New | +$12K |
|
1358
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$5.54B
| $12K | ﹤0.01% |
+62
| New | +$12K |
|
1359
Xoma
XOMA
$452M
| $12K | ﹤0.01% |
828
-4,637
| -85% | -$67.2K |
|
1360
Haoxi Health Technology Ltd
HAO
$3.82M
| $12K | ﹤0.01% |
21
-200
| -90% | -$114K |
|
|
INFI
1361
DELISTED
Infinity Pharmaceuticals, Inc.
INFI
| $12K | ﹤0.01% |
1,462
-306
| -17% | -$2.51K |
|
|
TLP
1362
DELISTED
Transmontaigne
TLP
| $12K | ﹤0.01% |
460
+442
| +2,456% | +$11.5K |
|
|
AF
1363
DELISTED
Astoria Financial Corporation
AF
| $12K | ﹤0.01% |
804
+803
| +80,300% | +$12K |
|
|
UFS
1364
DELISTED
DOMTAR CORPORATION (New)
UFS
| $12K | ﹤0.01% |
337
-7,051
| -95% | -$251K |
|
|
VVUS
1365
DELISTED
Vivus Inc
VVUS
| $12K | ﹤0.01% |
784
+752
| +2,350% | +$11.5K |
|
|
QGENF
1366
DELISTED
QIAGEN NV
QGENF
| $12K | ﹤0.01% |
501
+221
| +79% | +$5.29K |
|
1367
Alamos Gold
AGI
$13.9B
| $11K | ﹤0.01% |
3,092
+2,323
| +302% | +$8.26K |
|
1368
DXP Enterprises
DXPE
$1.85B
| $11K | ﹤0.01% |
+438
| New | +$11K |
|
1369
Equinor
EQNR
$61.2B
| $11K | ﹤0.01% |
783
-400
| -34% | -$5.62K |
|
1370
Itaú Unibanco
ITUB
$75B
| $11K | ﹤0.01% |
+3,776
| New | +$11K |
|
1371
Matsons
MATX
$3.29B
| $11K | ﹤0.01% |
+289
| New | +$11K |
|
1372
Natural Health Trends
NHTC
$53.9M
| $11K | ﹤0.01% |
+352
| New | +$11K |
|
1373
News Corp Class A
NWSA
$16.5B
| $11K | ﹤0.01% |
945
+144
| +18% | +$1.68K |
|
|
SAFE
1374
Safehold
SAFE
$1.18B
| $11K | ﹤0.01% |
186
-122
| -40% | -$7.22K |
|
|
ENFY
1375
Enlightify Inc.
ENFY
$15.6M
| $11K | ﹤0.01% |
576
+394
| +216% | +$7.52K |
|