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 |
Apple
AAPL
|
+$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$38.8M |
| 4 |
Amazon
AMZN
|
+$38.6M |
| 5 |
Tesla
TSLA
|
+$36M |
Top Sells
| 1 |
Alibaba
BABA
|
+$46.4M |
| 2 |
Boeing
BA
|
+$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
NVIDIA
NVDA
|
+$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1251
Honda
HMC
$44.3B
| $46K | ﹤0.01% |
1,630
-2,928
| -64% | -$82.6K |
|
1252
Koppers
KOP
$560M
| $46K | ﹤0.01% |
+1,222
| New | +$46K |
|
|
RADA
1253
DELISTED
Rada Electronic Industries Ltd
RADA
| $46K | ﹤0.01% |
8,903
+8,065
| +962% | +$41.7K |
|
|
LVGO
1254
DELISTED
Livongo Health, Inc. Common Stock
LVGO
| $46K | ﹤0.01% |
1,839
-7,472
| -80% | -$187K |
|
|
GCAP
1255
DELISTED
Gain Capital Holdings, Inc.
GCAP
| $46K | ﹤0.01% |
+11,764
| New | +$46K |
|
1256
Cars.com
CARS
$847M
| $45K | ﹤0.01% |
3,708
+2,492
| +205% | +$30.2K |
|
1257
Haemonetics
HAE
$2.58B
| $45K | ﹤0.01% |
+396
| New | +$45K |
|
1258
Live Oak Bancshares
LOB
$1.69B
| $45K | ﹤0.01% |
2,396
+1,678
| +234% | +$31.5K |
|
1259
E.W. Scripps
SSP
$254M
| $45K | ﹤0.01% |
+2,875
| New | +$45K |
|
1260
Tradeweb Markets
TW
$25.5B
| $45K | ﹤0.01% |
978
-8,077
| -89% | -$372K |
|
1261
Energy Fuels
UUUU
$2.91B
| $45K | ﹤0.01% |
23,997
-9,494
| -28% | -$17.8K |
|
1262
Vanguard FTSE Developed Markets ETF
VEA
$174B
| $45K | ﹤0.01% |
1,043
+822
| +372% | +$35.5K |
|
|
ACOR
1263
DELISTED
Acorda Therapeutics, Inc.
ACOR
| $45K | ﹤0.01% |
+185
| New | +$45K |
|
1264
Mitek Systems
MITK
$467M
| $44K | ﹤0.01% |
5,805
-32,743
| -85% | -$248K |
|
1265
Energous
WATT
$11.2M
| $44K | ﹤0.01% |
42
+35
| +500% | +$36.7K |
|
|
SWAV
1266
DELISTED
Shockwave Medical, Inc. Common Stock
SWAV
| $44K | ﹤0.01% |
+1,019
| New | +$44K |
|
|
ZAGG
1267
DELISTED
ZAGG Inc Common Stock (Delaware)
ZAGG
| $44K | ﹤0.01% |
5,512
-3,168
| -36% | -$25.3K |
|
1268
Cato Corp
CATO
$88.6M
| $43K | ﹤0.01% |
+2,524
| New | +$43K |
|
1269
Ezcorp Inc
EZPW
$1.01B
| $43K | ﹤0.01% |
+6,306
| New | +$43K |
|
1270
Health Catalyst
HCAT
$227M
| $43K | ﹤0.01% |
+1,248
| New | +$43K |
|
1271
iShares Micro-Cap ETF
IWC
$952M
| $43K | ﹤0.01% |
437
| – | – |
|
|
SOHU
1272
Sohu.com
SOHU
$480M
| $43K | ﹤0.01% |
3,861
-741
| -16% | -$8.25K |
|
1273
Ternium
TX
$6.85B
| $43K | ﹤0.01% |
+1,981
| New | +$43K |
|
1274
Viper Energy
VNOM
$6.54B
| $43K | ﹤0.01% |
1,770
-1,155
| -39% | -$28.1K |
|
|
WPRT
1275
Westport Fuel Systems
WPRT
$40.8M
| $43K | ﹤0.01% |
1,842
+908
| +97% | +$21.2K |
|