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 | |
|---|---|---|---|---|---|---|
1301
Xponential Fitness
XPOF
$313M
| $48K | ﹤0.01% |
2,105
+1,433
| +213% | +$32.7K |
|
|
NAPA
1302
DELISTED
The Duckhorn Portfolio, Inc.
NAPA
| $48K | ﹤0.01% |
2,948
+2,914
| +8,571% | +$47.4K |
|
1303
Astronics
ATRO
$1.41B
| $47K | ﹤0.01% |
4,631
+4,362
| +1,622% | +$44.3K |
|
1304
Cadiz
CDZI
$322M
| $47K | ﹤0.01% |
19,111
+18,708
| +4,642% | +$46K |
|
1305
Castor Maritime
CTRM
$19.2M
| $47K | ﹤0.01% |
4,261
+14
| +0.3% | +$154 |
|
|
ITOS
1306
DELISTED
iTeos Therapeutics
ITOS
| $47K | ﹤0.01% |
2,423
+2,351
| +3,265% | +$45.6K |
|
1307
Invesco KBW Bank ETF
KBWB
$4.98B
| $47K | ﹤0.01% |
924
+565
| +157% | +$28.7K |
|
1308
Kratos Defense & Security Solutions
KTOS
$11.7B
| $47K | ﹤0.01% |
4,651
-3,191
| -41% | -$32.2K |
|
1309
Schwab US Large-Cap Growth ETF
SCHG
$49.5B
| $47K | ﹤0.01% |
3,432
-2,916
| -46% | -$39.9K |
|
|
VCSA
1310
DELISTED
Vacasa, Inc. Class A Common Stock
VCSA
| $47K | ﹤0.01% |
+1,878
| New | +$47K |
|
|
AEVA
1311
Aeva Technologies
AEVA
$903M
| $46K | ﹤0.01% |
6,900
-24,028
| -78% | -$160K |
|
1312
ANI Pharmaceuticals
ANIP
$2.12B
| $46K | ﹤0.01% |
1,144
+1,104
| +2,760% | +$44.4K |
|
1313
Clover Health Investments
CLOV
$1.57B
| $46K | ﹤0.01% |
49,895
-138,721
| -74% | -$128K |
|
1314
PIMCO 15+ Year US TIPS Index Exchange-Traded Fund
LTPZ
$699M
| $46K | ﹤0.01% |
+790
| New | +$46K |
|
1315
Regal Rexnord
RRX
$9.22B
| $46K | ﹤0.01% |
+386
| New | +$46K |
|
1316
Vor Biopharma
VOR
$220M
| $46K | ﹤0.01% |
7,048
+3,615
| +105% | +$23.6K |
|
|
1317
Citigroup
C
$183B
| $45K | ﹤0.01% |
1,000
-1,383,414
| -100% | -$62.3M |
|
1318
CACI
CACI
$10.9B
| $45K | ﹤0.01% |
+151
| New | +$45K |
|
1319
WisdomTree Europe SmallCap Dividend Fund
DFE
$182M
| $45K | ﹤0.01% |
+829
| New | +$45K |
|
1320
Deluxe
DLX
$881M
| $45K | ﹤0.01% |
2,671
-3,902
| -59% | -$65.7K |
|
1321
Destination XL Group
DXLG
$80.3M
| $45K | ﹤0.01% |
6,673
+2,362
| +55% | +$15.9K |
|
1322
Porch Group
PRCH
$1.82B
| $45K | ﹤0.01% |
24,143
-12,342
| -34% | -$23K |
|
|
HTO
1323
H2O America Common Stock
HTO
$1.75B
| $45K | ﹤0.01% |
+563
| New | +$45K |
|
1324
Televisa
TV
$1.54B
| $45K | ﹤0.01% |
9,872
+266
| +3% | +$1.21K |
|
|
SEI
1325
Solaris Energy Infrastructure, Inc.
SEI
$1.39B
| $45K | ﹤0.01% |
4,585
+397
| +9% | +$3.9K |
|