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
|
+$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$59.4M |
| 5 |
Intel
INTC
|
+$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 2 |
iShares Silver Trust
SLV
|
+$45.9M |
| 3 |
Ford
F
|
+$32.5M |
| 4 |
Exxon Mobil
XOM
|
+$20.4M |
| 5 |
Caterpillar
CAT
|
+$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1851
Weatherford International
WFRD
$4.41B
| $15K | ﹤0.01% |
755
-21,930
| -97% | -$436K |
|
|
XNET
1852
Xunlei
XNET
$482M
| $15K | ﹤0.01% |
9,803
+3,366
| +52% | +$5.15K |
|
1853
Astrana Health
ASTH
$1.35B
| $15K | ﹤0.01% |
+414
| New | +$15K |
|
|
EXAI
1854
DELISTED
Exscientia Plc American Depositary Shares
EXAI
| $15K | ﹤0.01% |
+1,388
| New | +$15K |
|
|
ENSV
1855
DELISTED
Enservco Corp.
ENSV
| $15K | ﹤0.01% |
+7,830
| New | +$15K |
|
|
ICPT
1856
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $15K | ﹤0.01% |
1,090
-14,860
| -93% | -$204K |
|
|
CGRN
1857
DELISTED
Capstone Green Energy Corporation Common Stock
CGRN
| $15K | ﹤0.01% |
6,116
+699
| +13% | +$1.71K |
|
|
ACC
1858
DELISTED
American Campus Communities, Inc.
ACC
| $15K | ﹤0.01% |
235
-21,572
| -99% | -$1.38M |
|
|
LUNA
1859
DELISTED
Luna Innovations Incorporated
LUNA
| $15K | ﹤0.01% |
2,582
-16,095
| -86% | -$93.5K |
|
1860
ARKO Corp
ARKO
$574M
| $14K | ﹤0.01% |
1,797
-3,433
| -66% | -$26.7K |
|
1861
Aspen Aerogels
ASPN
$553M
| $14K | ﹤0.01% |
1,492
-33,506
| -96% | -$314K |
|
1862
AvidXchange
AVDX
$2.07B
| $14K | ﹤0.01% |
2,327
+1,412
| +154% | +$8.5K |
|
1863
JPMorgan BetaBuilders Canada ETF
BBCA
$8.91B
| $14K | ﹤0.01% |
+249
| New | +$14K |
|
1864
Baidu
BIDU
$39.5B
| $14K | ﹤0.01% |
100
-135,431
| -100% | -$19M |
|
1865
Culp
CULP
$56.7M
| $14K | ﹤0.01% |
3,261
+2,003
| +159% | +$8.6K |
|
1866
Emcor
EME
$28.1B
| $14K | ﹤0.01% |
143
+49
| +52% | +$4.8K |
|
|
EMX
1867
EMX Royalty
EMX
$457M
| $14K | ﹤0.01% |
7,584
+5,244
| +224% | +$9.68K |
|
1868
Goldman Sachs Future Tech Leaders Equity ETF
GTEK
$185M
| $14K | ﹤0.01% |
647
+547
| +547% | +$11.8K |
|
1869
Heartland Express
HTLD
$658M
| $14K | ﹤0.01% |
1,026
-1,545
| -60% | -$21.1K |
|
1870
Lemonade
LMND
$4.19B
| $14K | ﹤0.01% |
800
| – | – |
|
1871
Pulmonx
LUNG
$64.8M
| $14K | ﹤0.01% |
990
-2,555
| -72% | -$36.1K |
|
1872
MeiraGTx Holdings
MGTX
$590M
| $14K | ﹤0.01% |
1,931
-6,362
| -77% | -$46.1K |
|
1873
AdvisorShares Pure US Cannabis ETF
MSOS
$731M
| $14K | ﹤0.01% |
1,433
-225,758
| -99% | -$2.21M |
|
1874
Virtus InfraCap US Preferred Stock ETF
PFFA
$1.84B
| $14K | ﹤0.01% |
667
-2,555
| -79% | -$53.6K |
|
1875
Virgin Galactic
SPCE
$189M
| $14K | ﹤0.01% |
122
+10
| +9% | +$1.15K |
|