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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1801
Stitch Fix
SFIX
$716M
| $13K | ﹤0.01% |
5,136
-38,971
| -88% | -$98.6K |
|
1802
TriNet
TNET
$3.31B
| $13K | ﹤0.01% |
+103
| New | +$13K |
|
1803
UNIFI
UFI
$84.6M
| $13K | ﹤0.01% |
2,336
-768
| -25% | -$4.27K |
|
1804
Verrica Pharmaceuticals
VRCA
$41.7M
| $13K | ﹤0.01% |
229
-223
| -49% | -$12.7K |
|
1805
Willdan Group
WLDN
$1.5B
| $13K | ﹤0.01% |
+455
| New | +$13K |
|
1806
Direxion Daily AAPL Bull 2X Shares
AAPU
$219M
| $12K | ﹤0.01% |
551
+245
| +80% | +$5.34K |
|
1807
A.O. Smith
AOS
$10.2B
| $12K | ﹤0.01% |
140
-3,333
| -96% | -$286K |
|
1808
abrdn Bloomberg All Commodity Strategy K-1 Free ETF
BCI
$1.72B
| $12K | ﹤0.01% |
+627
| New | +$12K |
|
1809
Co-Diagnostics
CODX
$16.1M
| $12K | ﹤0.01% |
11,575
-13,065
| -53% | -$13.5K |
|
1810
Traeger
COOK
$183M
| $12K | ﹤0.01% |
4,978
-4,593
| -48% | -$11.1K |
|
1811
Fidelity MSCI Industrials Index ETF
FIDU
$1.5B
| $12K | ﹤0.01% |
182
+43
| +31% | +$2.84K |
|
1812
Galapagos
GLPG
$2.13B
| $12K | ﹤0.01% |
+385
| New | +$12K |
|
1813
SPDR S&P China ETF
GXC
$502M
| $12K | ﹤0.01% |
+186
| New | +$12K |
|
1814
Hagerty
HGTY
$1.23B
| $12K | ﹤0.01% |
1,397
+1,181
| +547% | +$10.1K |
|
1815
Lakeland Industries
LAKE
$139M
| $12K | ﹤0.01% |
689
-214
| -24% | -$3.73K |
|
1816
ProShares K-1 Free Crude Oil Strategy ETF
OILK
$70.7M
| $12K | ﹤0.01% |
262
-1,403
| -84% | -$64.3K |
|
1817
OppFi
OPFI
$332M
| $12K | ﹤0.01% |
+4,805
| New | +$12K |
|
1818
Smith Micro Software
SMSI
$15.1M
| $12K | ﹤0.01% |
4,481
+2,987
| +200% | +$8K |
|
1819
Latham Group
SWIM
$902M
| $12K | ﹤0.01% |
+3,200
| New | +$12K |
|
|
TGB
1820
Taseko Mines
TGB
$1.16B
| $12K | ﹤0.01% |
5,812
-57,016
| -91% | -$118K |
|
1821
T-REX 2X Long Tesla Daily Target ETF
TSLT
$515M
| $12K | ﹤0.01% |
+1,101
| New | +$12K |
|
1822
Usana Health Sciences
USNA
$551M
| $12K | ﹤0.01% |
+265
| New | +$12K |
|
1823
Dentsply Sirona
XRAY
$2.72B
| $12K | ﹤0.01% |
388
-18,134
| -98% | -$561K |
|
|
MAGN
1824
Magnera Corporation
MAGN
$392M
| $12K | ﹤0.01% |
471
+172
| +58% | +$4.38K |
|
|
PHLT
1825
Performant Healthcare, Inc. Common Stock
PHLT
$611M
| $12K | ﹤0.01% |
4,249
+61
| +1% | +$172 |
|