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 | |
|---|---|---|---|---|---|---|
1426
First Internet Bancorp
INBK
$212M
| $28K | ﹤0.01% |
+1,915
| New | +$28K |
|
1427
Kopin
KOPN
$412M
| $28K | ﹤0.01% |
+13,247
| New | +$28K |
|
|
LITS
1428
Lite Strategy, Inc. Common Stock
LITS
$96.2M
| $28K | ﹤0.01% |
+4,326
| New | +$28K |
|
1429
Nexa Resources
NEXA
$657M
| $28K | ﹤0.01% |
5,836
+2,996
| +105% | +$14.4K |
|
1430
NN Inc
NNBR
$117M
| $28K | ﹤0.01% |
12,089
+10,147
| +523% | +$23.5K |
|
1431
VanEck Preferred Securities ex Financials ETF
PFXF
$1.91B
| $28K | ﹤0.01% |
1,641
+404
| +33% | +$6.89K |
|
1432
Southwest Gas
SWX
$5.65B
| $28K | ﹤0.01% |
446
-227
| -34% | -$14.3K |
|
|
VLD
1433
DELISTED
Velo3D, Inc.
VLD
| $28K | ﹤0.01% |
381
+217
| +132% | +$15.9K |
|
1434
Gulfport Energy Corp
GPOR
$3.06B
| $27K | ﹤0.01% |
+260
| New | +$27K |
|
1435
Ocugen
OCGN
$334M
| $27K | ﹤0.01% |
49,861
-76,798
| -61% | -$41.6K |
|
1436
Onto Innovation
ONTO
$5.44B
| $27K | ﹤0.01% |
+238
| New | +$27K |
|
1437
One Stop Systems
OSS
$122M
| $27K | ﹤0.01% |
+9,467
| New | +$27K |
|
1438
Ribbon Communications
RBBN
$676M
| $27K | ﹤0.01% |
9,872
-44,686
| -82% | -$122K |
|
1439
ProShares Ultra Technology
ROM
$815M
| $27K | ﹤0.01% |
619
-3,356
| -84% | -$146K |
|
1440
iShares TIPS Bond ETF
TIP
$14B
| $27K | ﹤0.01% |
255
-26,577
| -99% | -$2.81M |
|
1441
Kartoon Studios
TOON
$37.8M
| $27K | ﹤0.01% |
14,520
-5,134
| -26% | -$9.55K |
|
|
WPRT
1442
Westport Fuel Systems
WPRT
$40.8M
| $27K | ﹤0.01% |
3,566
-2,830
| -44% | -$21.4K |
|
|
PGRU
1443
DELISTED
PropertyGuru Group Limited
PGRU
| $27K | ﹤0.01% |
+6,204
| New | +$27K |
|
|
DMTK
1444
DELISTED
DermTech, Inc. Common Stock
DMTK
| $27K | ﹤0.01% |
+10,584
| New | +$27K |
|
|
WE
1445
DELISTED
WeWork Inc.
WE
| $27K | ﹤0.01% |
+2,738
| New | +$27K |
|
1446
Cogent Communications
CCOI
$1.77B
| $26K | ﹤0.01% |
+392
| New | +$26K |
|
1447
Corvus Pharmaceuticals
CRVS
$434M
| $26K | ﹤0.01% |
+11,529
| New | +$26K |
|
1448
iShares International Select Dividend ETF
IDV
$5.88B
| $26K | ﹤0.01% |
1,001
+178
| +22% | +$4.62K |
|
1449
Innovative Solutions & Support
ISSC
$197M
| $26K | ﹤0.01% |
3,687
+1,320
| +56% | +$9.31K |
|
1450
Lucid Motors
LCID
$5.92B
| $26K | ﹤0.01% |
388
+132
| +52% | +$8.85K |
|