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 |
NVIDIA
NVDA
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1351
Verastem
VSTM
$598M
| $37K | ﹤0.01% |
5,104
+3,771
| +283% | +$27.3K |
|
|
ICVX
1352
DELISTED
Icosavax, Inc. Common Stock
ICVX
| $37K | ﹤0.01% |
3,738
+2,373
| +174% | +$23.5K |
|
1353
AudioEye
AEYE
$166M
| $36K | ﹤0.01% |
7,418
+7,357
| +12,061% | +$35.7K |
|
1354
ArcBest
ARCB
$1.6B
| $36K | ﹤0.01% |
374
-8,511
| -96% | -$819K |
|
|
AZEK
1355
DELISTED
The AZEK Co
AZEK
| $36K | ﹤0.01% |
+1,217
| New | +$36K |
|
1356
Enovix
ENVX
$1.77B
| $36K | ﹤0.01% |
2,286
-63,965
| -97% | -$1.01M |
|
1357
Evolent Health
EVH
$1.05B
| $36K | ﹤0.01% |
+1,200
| New | +$36K |
|
1358
IDEX
IEX
$12.1B
| $36K | ﹤0.01% |
+169
| New | +$36K |
|
|
ALLG
1359
DELISTED
Allego N.V.
ALLG
| $36K | ﹤0.01% |
13,269
+8,914
| +205% | +$24.2K |
|
1360
AbCellera Biologics
ABCL
$1.34B
| $35K | ﹤0.01% |
5,462
-5,885
| -52% | -$37.7K |
|
1361
Choice Hotels
CHH
$5.22B
| $35K | ﹤0.01% |
+305
| New | +$35K |
|
1362
IDEAYA Biosciences
IDYA
$2.16B
| $35K | ﹤0.01% |
1,498
+1,496
| +74,800% | +$35K |
|
1363
NiSource
NI
$19.3B
| $35K | ﹤0.01% |
+1,287
| New | +$35K |
|
1364
Rocket Companies
RKT
$44.4B
| $35K | ﹤0.01% |
4,000
| – | – |
|
1365
Seadrill
SDRL
$2.04B
| $35K | ﹤0.01% |
860
-82
| -9% | -$3.34K |
|
1366
TD Synnex
SNX
$12.5B
| $35K | ﹤0.01% |
379
-118
| -24% | -$10.9K |
|
1367
Sportsman's Warehouse
SPWH
$117M
| $35K | ﹤0.01% |
+6,211
| New | +$35K |
|
1368
Trinity Capital
TRIN
$1.13B
| $35K | ﹤0.01% |
2,703
-14,920
| -85% | -$193K |
|
1369
Blackrock
BLK
$174B
| $34K | ﹤0.01% |
50
| – | – |
|
1370
Caribou Biosciences
CRBU
$168M
| $34K | ﹤0.01% |
8,061
+6,868
| +576% | +$29K |
|
1371
Fresh Del Monte Produce
FDP
$1.71B
| $34K | ﹤0.01% |
+1,336
| New | +$34K |
|
|
GPMT
1372
Granite Point Mortgage Trust
GPMT
$142M
| $34K | ﹤0.01% |
6,495
-10,198
| -61% | -$53.4K |
|
1373
iShares North American Natural Resources ETF
IGE
$621M
| $34K | ﹤0.01% |
887
+95
| +12% | +$3.64K |
|
|
LOMA
1374
Loma Negra
LOMA
$888M
| $34K | ﹤0.01% |
+5,077
| New | +$34K |
|
|
KG
1375
Kestrel Group, Ltd.
KG
$211M
| $34K | ﹤0.01% |
810
-691
| -46% | -$29K |
|