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
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1426
WD-40
WDFC
$2.86B
| $36K | ﹤0.01% |
191
-7
| -4% | -$1.32K |
|
1427
SPDR S&P Semiconductor ETF
XSD
$1.48B
| $36K | ﹤0.01% |
+290
| New | +$36K |
|
|
HA
1428
DELISTED
Hawaiian Holdings, Inc.
HA
| $36K | ﹤0.01% |
+2,811
| New | +$36K |
|
|
ARNC
1429
DELISTED
Arconic Corporation
ARNC
| $36K | ﹤0.01% |
+1,910
| New | +$36K |
|
|
RESN
1430
DELISTED
Resonant Inc.
RESN
| $36K | ﹤0.01% |
15,240
+11,355
| +292% | +$26.8K |
|
|
MSGN
1431
DELISTED
MSG Networks Inc.
MSGN
| $36K | ﹤0.01% |
+3,854
| New | +$36K |
|
1432
Accel Entertainment
ACEL
$938M
| $35K | ﹤0.01% |
+3,268
| New | +$35K |
|
1433
Artivion
AORT
$1.92B
| $35K | ﹤0.01% |
1,921
+710
| +59% | +$12.9K |
|
1434
Atara Biotherapeutics
ATRA
$85.1M
| $35K | ﹤0.01% |
+108
| New | +$35K |
|
1435
CrossAmerica Partners
CAPL
$774M
| $35K | ﹤0.01% |
+2,393
| New | +$35K |
|
1436
Curtiss-Wright
CW
$19.2B
| $35K | ﹤0.01% |
386
-457
| -54% | -$41.4K |
|
1437
Northern Oil and Gas
NOG
$2.48B
| $35K | ﹤0.01% |
+6,155
| New | +$35K |
|
1438
Potbelly
PBPB
$514M
| $35K | ﹤0.01% |
9,418
-740
| -7% | -$2.75K |
|
1439
Uranium Energy
UEC
$5.27B
| $35K | ﹤0.01% |
+35,437
| New | +$35K |
|
1440
ProShares Ultra Semiconductors
USD
$1.5B
| $35K | ﹤0.01% |
+3,744
| New | +$35K |
|
1441
Vanguard Consumer Discretionary ETF
VCR
$6.58B
| $35K | ﹤0.01% |
+152
| New | +$35K |
|
1442
SPDR S&P Health Care Equipment ETF
XHE
$153M
| $35K | ﹤0.01% |
367
-208
| -36% | -$19.8K |
|
1443
ProShares UltraShort Silver
ZSL
$18.8M
| $35K | ﹤0.01% |
226
+43
| +23% | +$6.66K |
|
|
NGM
1444
DELISTED
NGM Biopharmaceuticals, Inc. Common Stock
NGM
| $35K | ﹤0.01% |
2,215
-319
| -13% | -$5.04K |
|
|
CAJ
1445
DELISTED
Canon, Inc.
CAJ
| $35K | ﹤0.01% |
2,159
+1,851
| +601% | +$30K |
|
1446
CNX Resources
CNX
$4.25B
| $34K | ﹤0.01% |
+3,624
| New | +$34K |
|
1447
Global Partners
GLP
$1.77B
| $34K | ﹤0.01% |
2,600
-7,622
| -75% | -$99.7K |
|
1448
Graphic Packaging
GPK
$6.14B
| $34K | ﹤0.01% |
2,443
-6,926
| -74% | -$96.4K |
|
1449
Kopin
KOPN
$412M
| $34K | ﹤0.01% |
24,901
+21,981
| +753% | +$30K |
|
1450
Ocular Therapeutix
OCUL
$2.23B
| $34K | ﹤0.01% |
4,519
-28,429
| -86% | -$214K |
|