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
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1826
Atea Pharmaceuticals
AVIR
$249M
| $11K | ﹤0.01% |
3,426
-15,605
| -82% | -$50.1K |
|
1827
8x8 Inc
EGHT
$286M
| $11K | ﹤0.01% |
+4,241
| New | +$11K |
|
1828
Erasca
ERAS
$443M
| $11K | ﹤0.01% |
4,455
+1,722
| +63% | +$4.25K |
|
1829
First Interstate BancSystem
FIBK
$3.43B
| $11K | ﹤0.01% |
344
+282
| +455% | +$9.02K |
|
1830
SPDR S&P China ETF
GXC
$502M
| $11K | ﹤0.01% |
156
+74
| +90% | +$5.22K |
|
1831
Heron Therapeutics
HRTX
$193M
| $11K | ﹤0.01% |
7,498
-4,498
| -37% | -$6.6K |
|
1832
Hexcel
HXL
$4.93B
| $11K | ﹤0.01% |
+178
| New | +$11K |
|
1833
ICF International
ICFI
$1.83B
| $11K | ﹤0.01% |
+96
| New | +$11K |
|
1834
Leap Therapeutics
LPTX
$12.4M
| $11K | ﹤0.01% |
4,088
+4,010
| +5,141% | +$10.8K |
|
1835
Nektar Therapeutics
NKTR
$926M
| $11K | ﹤0.01% |
845
+379
| +81% | +$4.93K |
|
1836
Oportun Financial
OPRT
$293M
| $11K | ﹤0.01% |
2,858
-16,350
| -85% | -$62.9K |
|
1837
Sabesp
SBS
$16B
| $11K | ﹤0.01% |
815
+763
| +1,467% | +$10.3K |
|
1838
Schwab Short-Term US Treasury ETF
SCHO
$11.1B
| $11K | ﹤0.01% |
486
-1,054
| -68% | -$23.9K |
|
1839
Safety Shot
SHOT
$83.7M
| $11K | ﹤0.01% |
16,073
-686
| -4% | -$469 |
|
1840
iShares Short Treasury Bond ETF
SHV
$20.7B
| $11K | ﹤0.01% |
+100
| New | +$11K |
|
1841
SmartRent
SMRT
$273M
| $11K | ﹤0.01% |
6,811
-50,747
| -88% | -$82K |
|
1842
SPDR Portfolio Europe ETF
SPEU
$699M
| $11K | ﹤0.01% |
+277
| New | +$11K |
|
1843
VSE Corp
VSEC
$3.4B
| $11K | ﹤0.01% |
+119
| New | +$11K |
|
1844
Zegna
ZGN
$2.22B
| $11K | ﹤0.01% |
1,397
-1,359
| -49% | -$10.7K |
|
|
BWIN
1845
Baldwin Insurance Group
BWIN
$2.22B
| $11K | ﹤0.01% |
+298
| New | +$11K |
|
1846
ADC Therapeutics
ADCT
$372M
| $10K | ﹤0.01% |
5,291
+2,878
| +119% | +$5.44K |
|
1847
Bain Capital Specialty
BCSF
$1B
| $10K | ﹤0.01% |
+599
| New | +$10K |
|
1848
Vanguard Long-Term Bond ETF
BLV
$5.72B
| $10K | ﹤0.01% |
158
-635
| -80% | -$40.2K |
|
1849
CBAK Energy Technology
CBAT
$78.1M
| $10K | ﹤0.01% |
10,674
-10,514
| -50% | -$9.85K |
|
1850
VanEck Oil Refiners ETF
CRAK
$27.1M
| $10K | ﹤0.01% |
371
-297
| -44% | -$8.01K |
|