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 |
NVIDIA
NVDA
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1276
Air Lease Corp
AL
$7.1B
| $49K | ﹤0.01% |
1,171
-7,278
| -86% | -$305K |
|
|
BHR
1277
Braemar Hotels & Resorts
BHR
$203M
| $49K | ﹤0.01% |
12,263
+3,229
| +36% | +$12.9K |
|
1278
Baker Hughes
BKR
$45.8B
| $49K | ﹤0.01% |
+1,580
| New | +$49K |
|
1279
BlackSky Technology
BKSY
$684M
| $49K | ﹤0.01% |
2,780
+2,379
| +593% | +$41.9K |
|
1280
Opendoor
OPEN
$6.68B
| $49K | ﹤0.01% |
12,200
-213,887
| -95% | -$859K |
|
|
CBD
1281
DELISTED
Companhia Brasileira de Distribuicao
CBD
| $49K | ﹤0.01% |
12,729
-2,324
| -15% | -$8.95K |
|
1282
Capricor Therapeutics
CAPR
$291M
| $48K | ﹤0.01% |
+10,146
| New | +$48K |
|
1283
Amdocs
DOX
$9.35B
| $48K | ﹤0.01% |
489
+217
| +80% | +$21.3K |
|
1284
Sanmina
SANM
$6.24B
| $48K | ﹤0.01% |
+813
| New | +$48K |
|
1285
Tradr 2X Long Innovation ETF
TARK
$33.6M
| $48K | ﹤0.01% |
1,330
+1,014
| +321% | +$36.6K |
|
1286
Tenable Holdings
TENB
$3.62B
| $48K | ﹤0.01% |
1,117
+372
| +50% | +$16K |
|
|
VNET
1287
VNET Group
VNET
$2.57B
| $48K | ﹤0.01% |
16,574
-12,503
| -43% | -$36.2K |
|
1288
C3.ai
AI
$2.26B
| $47K | ﹤0.01% |
1,312
-350,919
| -100% | -$12.6M |
|
1289
Amplify Travel Tech ETF
AWAY
$42.5M
| $47K | ﹤0.01% |
+2,798
| New | +$47K |
|
1290
Kura Oncology
KURA
$711M
| $47K | ﹤0.01% |
+4,443
| New | +$47K |
|
1291
Lexicon Pharmaceuticals
LXRX
$418M
| $47K | ﹤0.01% |
20,926
-24,698
| -54% | -$55.5K |
|
1292
Riley Exploration Permian
REPX
$608M
| $47K | ﹤0.01% |
1,326
+863
| +186% | +$30.6K |
|
1293
Bitwise Crypto Industry Innovators ETF
BITQ
$343M
| $46K | ﹤0.01% |
5,720
+5,097
| +818% | +$41K |
|
1294
Hilton Grand Vacations
HGV
$3.98B
| $46K | ﹤0.01% |
1,034
-706
| -41% | -$31.4K |
|
|
AAC
1295
DELISTED
Ares Acquisition Corporation
AAC
| $46K | ﹤0.01% |
4,446
+92
| +2% | +$952 |
|
1296
Amprius Technologies
AMPX
$1.02B
| $45K | ﹤0.01% |
6,312
-25,759
| -80% | -$184K |
|
1297
CF Industries
CF
$13.9B
| $45K | ﹤0.01% |
662
-109,104
| -99% | -$7.42M |
|
1298
Crinetics Pharmaceuticals
CRNX
$3.2B
| $45K | ﹤0.01% |
+2,545
| New | +$45K |
|
1299
Daktronics
DAKT
$1.14B
| $45K | ﹤0.01% |
7,095
+1,093
| +18% | +$6.93K |
|
|
GAN
1300
DELISTED
GAN Ltd
GAN
| $45K | ﹤0.01% |
28,004
+24,234
| +643% | +$38.9K |
|