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 | |
|---|---|---|---|---|---|---|
|
CLDL
4426
DELISTED
Direxion Daily Cloud Computing Bull 2X Shares
CLDL
| $0 | ﹤0.01% |
+26
| New | – |
|
4427
ClearSign Technologies
CLIR
$31.2M
| $0 | ﹤0.01% |
393
-3,180
| -89% | – |
|
4428
Calumet Specialty Products
CLMT
$1.45B
| – | – |
0
| – | – |
|
4429
Clearside Biomedical
CLSD
$26.7M
| – | – |
0
| – | – |
|
4430
Clorox
CLX
$15B
| – | – |
-14,958
| Closed | -$2.43M |
|
4431
Canadian Imperial Bank of Commerce
CM
$72.9B
| – | – |
0
| – | – |
|
4432
iShares MSCI Agriculture Producers ETF
VEGI
$91.7M
| – | – |
-854
| Closed | -$30K |
|
4433
Penumbra
PEN
$10.5B
| – | – |
-128
| Closed | -$30K |
|
4434
NetEase
NTES
$85.4B
| – | – |
-11,619
| Closed | -$1.04M |
|
4435
SPDR S&P Kensho Future Security ETF
FITE
$80.2M
| – | – |
-100
| Closed | -$6K |
|
4436
BCB Bancorp
BCBP
$150M
| – | – |
-53
| Closed | – |
|