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 | |
|---|---|---|---|---|---|---|
1326
Direxion Daily Real Estate Bull 3X Shares
DRN
$66.4M
| $41K | ﹤0.01% |
+4,382
| New | +$41K |
|
1327
Comfort Systems
FIX
$26.6B
| $41K | ﹤0.01% |
253
-823
| -76% | -$133K |
|
1328
Nine Energy Service
NINE
$30.5M
| $41K | ﹤0.01% |
10,800
+2,621
| +32% | +$9.95K |
|
1329
Vanguard Health Care ETF
VHT
$15.7B
| $41K | ﹤0.01% |
+168
| New | +$41K |
|
1330
BARK
BARK
$150M
| $40K | ﹤0.01% |
30,227
+3,087
| +11% | +$4.09K |
|
|
FSP
1331
Franklin Street Properties
FSP
$174M
| $40K | ﹤0.01% |
27,651
-9,025
| -25% | -$13.1K |
|
1332
Leslie's
LESL
$62M
| $40K | ﹤0.01% |
4,295
-2,885
| -40% | -$26.9K |
|
1333
United Bankshares
UBSI
$5.3B
| $40K | ﹤0.01% |
1,359
-1,026
| -43% | -$30.2K |
|
1334
US Gold Corp
USAU
$222M
| $40K | ﹤0.01% |
8,991
+5,528
| +160% | +$24.6K |
|
1335
Invesco China Technology ETF
CQQQ
$1.5B
| $39K | ﹤0.01% |
1,004
+630
| +168% | +$24.5K |
|
1336
Customers Bancorp
CUBI
$2.32B
| $39K | ﹤0.01% |
1,312
-5,841
| -82% | -$174K |
|
1337
Lincoln Electric
LECO
$13.2B
| $39K | ﹤0.01% |
199
+163
| +453% | +$31.9K |
|
1338
Pulse Biosciences
PLSE
$977M
| $39K | ﹤0.01% |
+5,516
| New | +$39K |
|
1339
Utz Brands
UTZ
$1.12B
| $39K | ﹤0.01% |
2,429
-1,037
| -30% | -$16.7K |
|
|
XELA
1340
DELISTED
Exela Technologies, Inc. Common Stock
XELA
| $39K | ﹤0.01% |
8,502
+8,475
| +31,389% | +$38.9K |
|
1341
Allogene Therapeutics
ALLO
$251M
| $38K | ﹤0.01% |
7,821
-105,528
| -93% | -$513K |
|
1342
Blue Bird Corp
BLBD
$1.84B
| $38K | ﹤0.01% |
1,704
-1,568
| -48% | -$35K |
|
1343
Dynagas LNG Partners
DLNG
$141M
| $38K | ﹤0.01% |
15,511
+4,431
| +40% | +$10.9K |
|
|
SOLO
1344
DELISTED
Electrameccanica Vehicles Corp. Ltd.
SOLO
| $38K | ﹤0.01% |
+61,996
| New | +$38K |
|
|
MDRX
1345
DELISTED
Veradigm Inc. Common Stock
MDRX
| $38K | ﹤0.01% |
+3,027
| New | +$38K |
|
1346
Allbirds
BIRD
$49.9M
| $37K | ﹤0.01% |
1,481
+1,078
| +267% | +$26.9K |
|
1347
Invesco S&P 100 Equal Weight ETF
EQWL
$1.68B
| $37K | ﹤0.01% |
+463
| New | +$37K |
|
1348
Genesis Energy
GEL
$2.03B
| $37K | ﹤0.01% |
+3,884
| New | +$37K |
|
1349
Gentex
GNTX
$6.25B
| $37K | ﹤0.01% |
+1,288
| New | +$37K |
|
1350
Interpublic Group of Companies
IPG
$9.67B
| $37K | ﹤0.01% |
+963
| New | +$37K |
|