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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1576
Syndax Pharmaceuticals
SNDX
$1.34B
| $20K | ﹤0.01% |
+1,657
| New | +$20K |
|
1577
YieldMax AMZN Option Income Strategy ETF
AMZY
$291M
| $19K | ﹤0.01% |
1,219
-434
| -26% | -$6.77K |
|
1578
Arbe Robotics
ARBE
$146M
| $19K | ﹤0.01% |
18,452
+5,923
| +47% | +$6.1K |
|
1579
Columbia Sportswear
COLM
$2.99B
| $19K | ﹤0.01% |
+254
| New | +$19K |
|
1580
iShares MSCI Sweden ETF
EWD
$326M
| $19K | ﹤0.01% |
+456
| New | +$19K |
|
|
GMRE
1581
Global Medical REIT
GMRE
$512M
| $19K | ﹤0.01% |
2,234
-485
| -18% | -$4.13K |
|
1582
KFA Mount Lucas Managed Futures Index Strategy ETF
KMLM
$183M
| $19K | ﹤0.01% |
715
+445
| +165% | +$11.8K |
|
1583
Marten Transport
MRTN
$953M
| $19K | ﹤0.01% |
1,437
-21,535
| -94% | -$285K |
|
1584
Nuvation Bio
NUVB
$1.07B
| $19K | ﹤0.01% |
10,947
-41,790
| -79% | -$72.5K |
|
1585
Ocugen
OCGN
$334M
| $19K | ﹤0.01% |
27,591
-145,170
| -84% | -$100K |
|
1586
Par Pacific Holdings
PARR
$1.67B
| $19K | ﹤0.01% |
1,355
+1,171
| +636% | +$16.4K |
|
1587
PotlatchDeltic
PCH
$3.2B
| $19K | ﹤0.01% |
+427
| New | +$19K |
|
1588
ROBO Global Robotics & Automation Index ETF
ROBO
$1.13B
| $19K | ﹤0.01% |
383
+231
| +152% | +$11.5K |
|
1589
VSE Corp
VSEC
$3.4B
| $19K | ﹤0.01% |
160
+41
| +34% | +$4.87K |
|
1590
Adverum Biotechnologies
ADVM
$63.4M
| $18K | ﹤0.01% |
4,313
+2,319
| +116% | +$9.68K |
|
1591
Alto Ingredients
ALTO
$91.3M
| $18K | ﹤0.01% |
16,373
-66,610
| -80% | -$73.2K |
|
1592
BARK
BARK
$150M
| $18K | ﹤0.01% |
13,255
-23,880
| -64% | -$32.4K |
|
1593
Celularity
CELU
$61.9M
| $18K | ﹤0.01% |
10,906
+9,363
| +607% | +$15.5K |
|
|
CEPU
1594
Central Puerto
CEPU
$1.29B
| $18K | ﹤0.01% |
1,683
-1,578
| -48% | -$16.9K |
|
1595
CareTrust REIT
CTRE
$7.62B
| $18K | ﹤0.01% |
642
-8,712
| -93% | -$244K |
|
1596
Direxion Daily Energy Bear 2X Shares
ERY
$22.4M
| $18K | ﹤0.01% |
+876
| New | +$18K |
|
|
IRS
1597
IRSA Inversiones y Representaciones
IRS
$906M
| $18K | ﹤0.01% |
+1,444
| New | +$18K |
|
1598
iShares Micro-Cap ETF
IWC
$948M
| $18K | ﹤0.01% |
+164
| New | +$18K |
|
1599
SPDR S&P Kensho New Economies Composite ETF
KOMP
$2.48B
| $18K | ﹤0.01% |
+390
| New | +$18K |
|
1600
Lands' End
LE
$475M
| $18K | ﹤0.01% |
1,782
+383
| +27% | +$3.87K |
|