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 |
Amazon
AMZN
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1551
J&J Snack Foods
JJSF
$2B
| $24K | ﹤0.01% |
+166
| New | +$24K |
|
1552
Ligand Pharmaceuticals
LGND
$3.23B
| $24K | ﹤0.01% |
368
-243
| -40% | -$15.8K |
|
|
NEXN
1553
Nexxen International
NEXN
$612M
| $24K | ﹤0.01% |
3,762
+536
| +17% | +$3.42K |
|
1554
Oric Pharmaceuticals
ORIC
$1.04B
| $24K | ﹤0.01% |
4,184
-5,937
| -59% | -$34.1K |
|
1555
Vanguard International High Dividend Yield ETF
VYMI
$12.1B
| $24K | ﹤0.01% |
+413
| New | +$24K |
|
|
FAZE
1556
DELISTED
FaZe Holdings Inc. Common Stock
FAZE
| $24K | ﹤0.01% |
13,087
+13,046
| +31,820% | +$23.9K |
|
|
MMX
1557
DELISTED
Maverix Metals Inc. Common Shares
MMX
| $24K | ﹤0.01% |
+5,300
| New | +$24K |
|
1558
Angi Inc
ANGI
$770M
| $23K | ﹤0.01% |
989
-2,054
| -67% | -$47.8K |
|
1559
Fox Factory Holding Corp
FOXF
$1.13B
| $23K | ﹤0.01% |
+261
| New | +$23K |
|
1560
Fox Class A
FOXA
$26.2B
| $23K | ﹤0.01% |
+768
| New | +$23K |
|
1561
Ichor Holdings
ICHR
$586M
| $23K | ﹤0.01% |
+881
| New | +$23K |
|
1562
Olo Inc
OLO
| $23K | ﹤0.01% |
3,762
-224
| -6% | -$1.37K |
|
|
UXIN
1563
Uxin Ltd
UXIN
$687M
| $23K | ﹤0.01% |
801
+547
| +215% | +$15.7K |
|
1564
Vanguard Mid-Cap Growth ETF
VOT
$17.8B
| $23K | ﹤0.01% |
131
-701
| -84% | -$123K |
|
|
ICVX
1565
DELISTED
Icosavax, Inc. Common Stock
ICVX
| $23K | ﹤0.01% |
2,965
+2,917
| +6,077% | +$22.6K |
|
|
HZON
1566
DELISTED
Horizon Acquisition Corporation II
HZON
| $23K | ﹤0.01% |
2,337
+2,336
| +233,600% | +$23K |
|
1567
AtriCure
ATRC
$1.72B
| $22K | ﹤0.01% |
500
-658
| -57% | -$29K |
|
1568
Alkermes
ALKS
$4.38B
| $22K | ﹤0.01% |
+874
| New | +$22K |
|
1569
Appian
APPN
$2.28B
| $22K | ﹤0.01% |
700
-24,131
| -97% | -$758K |
|
1570
A10 Networks
ATEN
$1.27B
| $22K | ﹤0.01% |
+1,323
| New | +$22K |
|
1571
Bread Financial
BFH
$2.98B
| $22K | ﹤0.01% |
+601
| New | +$22K |
|
1572
Cogent Biosciences
COGT
$1.73B
| $22K | ﹤0.01% |
1,929
-3,624
| -65% | -$41.3K |
|
1573
Galectin Therapeutics
GALT
$288M
| $22K | ﹤0.01% |
19,723
+9,293
| +89% | +$10.4K |
|
1574
Limoneira
LMNR
$274M
| $22K | ﹤0.01% |
+1,846
| New | +$22K |
|
1575
PLAYSTUDIOS Inc
MYPS
$120M
| $22K | ﹤0.01% |
5,733
-19,131
| -77% | -$73.4K |
|