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 | |
|---|---|---|---|---|---|---|
2151
Direxion Daily Aerospace & Defense Bull 3X Shares
DFEN
$349M
| $6K | ﹤0.01% |
600
-3,882
| -87% | -$38.8K |
|
2152
Dogness International Corp
DOGZ
$195M
| $6K | ﹤0.01% |
+288
| New | +$6K |
|
2153
Excelerate Energy
EE
$783M
| $6K | ﹤0.01% |
296
-1,928
| -87% | -$39.1K |
|
2154
Equitable Holdings
EQH
$16.3B
| $6K | ﹤0.01% |
+265
| New | +$6K |
|
|
ETWO
2155
DELISTED
E2open Parent Holdings
ETWO
| $6K | ﹤0.01% |
1,046
-48,370
| -98% | -$277K |
|
|
HYPD
2156
Hyperion DeFi, Inc. Common Stock
HYPD
$70.3M
| $6K | ﹤0.01% |
42
+33
| +367% | +$4.71K |
|
2157
Forestar Group
FOR
$1.38B
| $6K | ﹤0.01% |
605
+304
| +101% | +$3.02K |
|
2158
Gogoro
GGR
$96.9M
| $6K | ﹤0.01% |
+1,663
| New | +$6K |
|
2159
Grifois
GRFS
$6.67B
| $6K | ﹤0.01% |
1,135
-3,868
| -77% | -$20.4K |
|
2160
Hagerty
HGTY
$1.29B
| $6K | ﹤0.01% |
711
-1,272
| -64% | -$10.7K |
|
2161
KALA BIO
KALA
$124M
| $6K | ﹤0.01% |
617
+564
| +1,064% | +$5.49K |
|
2162
loanDepot
LDI
$873M
| $6K | ﹤0.01% |
4,791
+1,913
| +66% | +$2.4K |
|
2163
Ramaco Resources Class A
METC
$2.06B
| $6K | ﹤0.01% |
750
-36,690
| -98% | -$294K |
|
2164
Milestone Scientific
MLSS
$42.5M
| $6K | ﹤0.01% |
7,767
-1,075
| -12% | -$830 |
|
2165
Nomad Foods
NOMD
$2.06B
| $6K | ﹤0.01% |
+473
| New | +$6K |
|
|
NVEE
2166
DELISTED
NV5 Global
NVEE
| $6K | ﹤0.01% |
+200
| New | +$6K |
|
2167
Ranpak Holdings
PACK
$441M
| $6K | ﹤0.01% |
+2,029
| New | +$6K |
|
2168
PDF Solutions
PDFS
$844M
| $6K | ﹤0.01% |
+248
| New | +$6K |
|
2169
Protagonist Therapeutics
PTGX
$3.83B
| $6K | ﹤0.01% |
755
-8,882
| -92% | -$70.6K |
|
2170
Quad
QUAD
$344M
| $6K | ﹤0.01% |
2,718
-962
| -26% | -$2.12K |
|
2171
Reynolds Consumer Products
REYN
$4.87B
| $6K | ﹤0.01% |
+266
| New | +$6K |
|
2172
Rimini Street
RMNI
$439M
| $6K | ﹤0.01% |
+1,301
| New | +$6K |
|
2173
Schwab Intermediately-Term US Treasury ETF
SCHR
$11.4B
| $6K | ﹤0.01% |
+258
| New | +$6K |
|
2174
Comscore
SCOR
$31.6M
| $6K | ﹤0.01% |
202
-803
| -80% | -$23.9K |
|
|
SOGP
2175
Sound Group
SOGP
$93.5M
| $6K | ﹤0.01% |
1,177
+1,067
| +970% | +$5.44K |
|