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 |
Microsoft
MSFT
|
+$101M |
| 2 |
NVIDIA
NVDA
|
+$66M |
| 3 |
Citigroup
C
|
+$51.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$42.7M |
| 5 |
SPDR Gold Trust
GLD
|
+$39.4M |
Top Sells
| 1 |
Apple
AAPL
|
+$411M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$64M |
| 3 |
Meta Platforms (Facebook)
META
|
+$39.8M |
| 4 |
iShares Core S&P 500 ETF
IVV
|
+$34.3M |
| 5 |
PayPal
PYPL
|
+$32.9M |
Sector Composition
| 1 | Technology | 17.4% |
| 2 | Financials | 12.04% |
| 3 | Consumer Discretionary | 10.17% |
| 4 | Healthcare | 8.63% |
| 5 | Industrials | 6.03% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1901
Roundhill Sports Betting & iGaming ETF
BETZ
$82.6M
| $13K | ﹤0.01% |
+1,017
| New | +$13K |
|
1902
Builders FirstSource
BLDR
$14.3B
| $13K | ﹤0.01% |
223
-5,931
| -96% | -$346K |
|
1903
DMC Global
BOOM
$158M
| $13K | ﹤0.01% |
875
+765
| +695% | +$11.4K |
|
1904
Global X Robotics & Artificial Intelligence ETF
BOTZ
$2.99B
| $13K | ﹤0.01% |
773
+762
| +6,927% | +$12.8K |
|
1905
Beyond Meat
BYND
$212M
| $13K | ﹤0.01% |
950
-4,060
| -81% | -$55.6K |
|
1906
Codexis
CDXS
$225M
| $13K | ﹤0.01% |
2,293
+225
| +11% | +$1.28K |
|
1907
Vita Coco
COCO
$2.23B
| $13K | ﹤0.01% |
+1,185
| New | +$13K |
|
1908
First Trust SkyBridge Crypto Industry and Digital Economy ETF
CRPT
$156M
| $13K | ﹤0.01% |
2,450
-503
| -17% | -$2.67K |
|
1909
Corvus Pharmaceuticals
CRVS
$456M
| $13K | ﹤0.01% |
16,050
-9,548
| -37% | -$7.73K |
|
1910
Amdocs
DOX
$9.29B
| $13K | ﹤0.01% |
+165
| New | +$13K |
|
1911
Evercore
EVR
$14B
| $13K | ﹤0.01% |
162
-6,146
| -97% | -$493K |
|
1912
First Financial Bancorp
FFBC
$2.5B
| $13K | ﹤0.01% |
+630
| New | +$13K |
|
1913
Full House Resorts
FLL
$126M
| $13K | ﹤0.01% |
2,491
-7,159
| -74% | -$37.4K |
|
1914
FlexShares Global Upstream Natural Resources Index Fund
GUNR
$5.08B
| $13K | ﹤0.01% |
372
-8,596
| -96% | -$300K |
|
1915
INmune Bio
INMB
$52.4M
| $13K | ﹤0.01% |
2,179
-4,113
| -65% | -$24.5K |
|
1916
Merus
MRUS
$5.21B
| $13K | ﹤0.01% |
+653
| New | +$13K |
|
1917
NMI Holdings
NMIH
$3.06B
| $13K | ﹤0.01% |
+654
| New | +$13K |
|
1918
Novavax
NVAX
$1.39B
| $13K | ﹤0.01% |
745
-73,584
| -99% | -$1.28M |
|
1919
Odyssey Marine Exploration
OMEX
$79.1M
| $13K | ﹤0.01% |
+4,512
| New | +$13K |
|
1920
RadNet
RDNT
$5.89B
| $13K | ﹤0.01% |
644
-1,080
| -63% | -$21.8K |
|
1921
Skillsoft
SKIL
$126M
| $13K | ﹤0.01% |
+368
| New | +$13K |
|
1922
Champion Homes, Inc.
SKY
$4.31B
| $13K | ﹤0.01% |
254
+213
| +520% | +$10.9K |
|
1923
Schneider National
SNDR
$4.03B
| $13K | ﹤0.01% |
686
-1,967
| -74% | -$37.3K |
|
1924
Vanguard FTSE All-World ex-US ETF
VEU
$50.6B
| $13K | ﹤0.01% |
300
+200
| +200% | +$8.67K |
|
1925
Vor Biopharma
VOR
$193M
| $13K | ﹤0.01% |
+3,433
| New | +$13K |
|