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 |
Amazon
AMZN
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1726
WhiteHorse Finance
WHF
$204M
| $14K | ﹤0.01% |
1,089
+221
| +25% | +$2.84K |
|
1727
W.R. Berkley
WRB
$27.7B
| $14K | ﹤0.01% |
293
-2,241
| -88% | -$107K |
|
1728
Essential Utilities
WTRG
$10.6B
| $14K | ﹤0.01% |
304
-1,032
| -77% | -$47.5K |
|
|
EGIO
1729
DELISTED
Edgio, Inc. Common Stock
EGIO
| $14K | ﹤0.01% |
314
-7,045
| -96% | -$314K |
|
|
EQRX
1730
DELISTED
EQRx, Inc. Common Stock
EQRX
| $14K | ﹤0.01% |
6,061
+4,089
| +207% | +$9.45K |
|
|
ARNC
1731
DELISTED
Arconic Corporation
ARNC
| $14K | ﹤0.01% |
697
-48,133
| -99% | -$967K |
|
|
OIG
1732
DELISTED
Orbital Infrastructure Group, Inc. Common Stock
OIG
| $14K | ﹤0.01% |
+1,900
| New | +$14K |
|
|
UMPQ
1733
DELISTED
Umpqua Holdings Corp
UMPQ
| $14K | ﹤0.01% |
817
-79
| -9% | -$1.35K |
|
|
ACR
1734
ACRES Commercial Realty
ACR
$155M
| $13K | ﹤0.01% |
+1,603
| New | +$13K |
|
1735
Ashland
ASH
$2.38B
| $13K | ﹤0.01% |
+128
| New | +$13K |
|
1736
Allbirds
BIRD
$49.1M
| $13K | ﹤0.01% |
284
-727
| -72% | -$33.3K |
|
1737
Chord Energy
CHRD
$5.88B
| $13K | ﹤0.01% |
+100
| New | +$13K |
|
1738
Curis
CRIS
$21.2M
| $13K | ﹤0.01% |
1,226
+341
| +39% | +$3.62K |
|
|
DSL
1739
DoubleLine Income Solutions Fund
DSL
$1.44B
| $13K | ﹤0.01% |
1,177
-1,485
| -56% | -$16.4K |
|
1740
SPDR S&P International Dividend ETF
DWX
$496M
| $13K | ﹤0.01% |
+431
| New | +$13K |
|
|
DX
1741
Dynex Capital
DX
$1.63B
| $13K | ﹤0.01% |
+1,066
| New | +$13K |
|
1742
Foster
FSTR
$292M
| $13K | ﹤0.01% |
1,381
+405
| +41% | +$3.81K |
|
1743
Goldman Sachs Hedge Industry VIP ETF
GVIP
$394M
| $13K | ﹤0.01% |
+200
| New | +$13K |
|
1744
Anywhere Real Estate
HOUS
$812M
| $13K | ﹤0.01% |
+2,174
| New | +$13K |
|
1745
iShares Genomics Immunology and Healthcare ETF
IDNA
$113M
| $13K | ﹤0.01% |
542
-101
| -16% | -$2.42K |
|
1746
Immunome
IMNM
$824M
| $13K | ﹤0.01% |
5,970
+2,328
| +64% | +$5.07K |
|
1747
Iris Energy
IREN
$9.54B
| $13K | ﹤0.01% |
10,618
+10,440
| +5,865% | +$12.8K |
|
1748
Lucid Motors
LCID
$6.03B
| $13K | ﹤0.01% |
200
-700
| -78% | -$45.5K |
|
1749
LCI Industries
LCII
$2.42B
| $13K | ﹤0.01% |
142
+73
| +106% | +$6.68K |
|
1750
Live Oak Bancshares
LOB
$1.67B
| $13K | ﹤0.01% |
433
-159
| -27% | -$4.77K |
|