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 |
NVIDIA
NVDA
|
+$216M |
| 2 |
Apple
AAPL
|
+$159M |
| 3 |
Broadcom
AVGO
|
+$128M |
| 4 |
Booking.com
BKNG
|
+$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
+$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$141M |
| 2 |
Amazon
AMZN
|
+$53.1M |
| 3 |
TSMC
TSM
|
+$45.7M |
| 4 |
Netflix
NFLX
|
+$45.3M |
| 5 |
Pfizer
PFE
|
+$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1801
Pyxis Oncology
PYXS
$113M
| $13K | ﹤0.01% |
12,615
+3,810
| +43% | +$3.93K |
|
|
TRON
1802
Tron Inc. Common Stock
TRON
$910M
| $13K | ﹤0.01% |
+1,684
| New | +$13K |
|
1803
Sypris Solutions
SYPR
$48.6M
| $13K | ﹤0.01% |
6,016
-712
| -11% | -$1.54K |
|
1804
Vanguard Large-Cap ETF
VV
$45.3B
| $13K | ﹤0.01% |
+46
| New | +$13K |
|
1805
Washington Trust Bancorp
WASH
$573M
| $13K | ﹤0.01% |
495
+357
| +259% | +$9.38K |
|
1806
Direxion Daily Consumer Discretionary Bull 3X Shares
WANT
$26.4M
| $13K | ﹤0.01% |
+337
| New | +$13K |
|
1807
Zumiez
ZUMZ
$347M
| $13K | ﹤0.01% |
1,007
+314
| +45% | +$4.05K |
|
1808
Alto Ingredients
ALTO
$91.3M
| $12K | ﹤0.01% |
10,831
-5,542
| -34% | -$6.14K |
|
1809
Apyx Medical
APYX
$79.4M
| $12K | ﹤0.01% |
5,669
+3,094
| +120% | +$6.55K |
|
1810
Amtech Systems
ASYS
$132M
| $12K | ﹤0.01% |
2,838
-630
| -18% | -$2.66K |
|
1811
Atlanta Braves Holdings Series A
BATRA
$2.86B
| $12K | ﹤0.01% |
263
+257
| +4,283% | +$11.7K |
|
1812
Traeger
COOK
$177M
| $12K | ﹤0.01% |
7,417
-1,387
| -16% | -$2.24K |
|
1813
Invesco MSCI Global Timber ETF
CUT
$44.3M
| $12K | ﹤0.01% |
427
+243
| +132% | +$6.83K |
|
1814
Commercial Vehicle Group
CVGI
$72.9M
| $12K | ﹤0.01% |
7,380
+2,002
| +37% | +$3.26K |
|
1815
8x8 Inc
EGHT
$286M
| $12K | ﹤0.01% |
6,376
+6,138
| +2,579% | +$11.6K |
|
1816
Full House Resorts
FLL
$120M
| $12K | ﹤0.01% |
+3,546
| New | +$12K |
|
1817
Green Brick Partners
GRBK
$3.21B
| $12K | ﹤0.01% |
203
-3,008
| -94% | -$178K |
|
1818
Direxion Daily MSCI India Bull 2X Shares
INDL
$68M
| $12K | ﹤0.01% |
+197
| New | +$12K |
|
|
TBHC
1819
The Brand House Collective, Inc. Common Stock
TBHC
$53.2M
| $12K | ﹤0.01% |
+11,317
| New | +$12K |
|
1820
Miller Industries
MLR
$455M
| $12K | ﹤0.01% |
275
-1,544
| -85% | -$67.4K |
|
1821
Noodles & Co
NDLS
$30.7M
| $12K | ﹤0.01% |
17,790
+4,404
| +33% | +$2.97K |
|
1822
Orion Group Holdings
ORN
$299M
| $12K | ﹤0.01% |
1,431
+1,236
| +634% | +$10.4K |
|
1823
Phillips Edison & Co
PECO
$4.47B
| $12K | ﹤0.01% |
345
-108
| -24% | -$3.76K |
|
1824
Pulse Biosciences
PLSE
$977M
| $12K | ﹤0.01% |
861
-539
| -39% | -$7.51K |
|
1825
Invesco S&P 500 Equal Weight Technology ETF
RSPT
$3.8B
| $12K | ﹤0.01% |
+306
| New | +$12K |
|