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 | |
|---|---|---|---|---|---|---|
1251
Arbe Robotics
ARBE
$146M
| $55K | ﹤0.01% |
19,148
-16,884
| -47% | -$48.5K |
|
|
DRD
1252
DRDGold
DRD
$1.93B
| $55K | ﹤0.01% |
+5,209
| New | +$55K |
|
1253
Galapagos
GLPG
$2.11B
| $55K | ﹤0.01% |
1,355
-6,249
| -82% | -$254K |
|
1254
Green Brick Partners
GRBK
$3.21B
| $55K | ﹤0.01% |
+972
| New | +$55K |
|
1255
Paysafe
PSFE
$827M
| $55K | ﹤0.01% |
+5,468
| New | +$55K |
|
1256
Alta Equipment Group
ALTG
$239M
| $54K | ﹤0.01% |
3,166
-5,938
| -65% | -$101K |
|
1257
Fidelity Nasdaq Composite Index ETF
ONEQ
$8.78B
| $54K | ﹤0.01% |
+1,006
| New | +$54K |
|
|
FREE
1258
DELISTED
Whole Earth Brands, Inc. Class A Common Stock
FREE
| $54K | ﹤0.01% |
13,556
+5,901
| +77% | +$23.5K |
|
1259
Breakwave Dry Bulk Shipping ETF
BDRY
$57.1M
| $53K | ﹤0.01% |
9,586
+2,821
| +42% | +$15.6K |
|
|
CAN
1260
Canaan Creative
CAN
$387M
| $53K | ﹤0.01% |
+25,072
| New | +$53K |
|
1261
StealthGas
GASS
$271M
| $53K | ﹤0.01% |
12,517
+3,102
| +33% | +$13.1K |
|
1262
Kite Realty
KRG
$4.95B
| $53K | ﹤0.01% |
+2,401
| New | +$53K |
|
1263
M/I Homes
MHO
$4.07B
| $53K | ﹤0.01% |
+610
| New | +$53K |
|
|
EGIO
1264
DELISTED
Edgio, Inc. Common Stock
EGIO
| $52K | ﹤0.01% |
1,948
+945
| +94% | +$25.2K |
|
1265
ABM Industries
ABM
$2.8B
| $52K | ﹤0.01% |
1,237
+1,095
| +771% | +$46K |
|
1266
Direxion Daily Real Estate Bear 3X Shares
DRV
$41.6M
| $52K | ﹤0.01% |
+1,158
| New | +$52K |
|
|
HITI
1267
High Tide
HITI
$299M
| $52K | ﹤0.01% |
+42,661
| New | +$52K |
|
1268
Sumitomo Mitsui Financial
SMFG
$107B
| $51K | ﹤0.01% |
5,948
+24
| +0.4% | +$206 |
|
|
ME
1269
DELISTED
23andMe Holding Co. Class A Common Stock
ME
| $51K | ﹤0.01% |
1,476
-447
| -23% | -$15.4K |
|
1270
Informatica
INFA
$7.55B
| $50K | ﹤0.01% |
+2,730
| New | +$50K |
|
1271
Pediatrix Medical
MD
$1.45B
| $50K | ﹤0.01% |
3,576
-425
| -11% | -$5.94K |
|
|
NIU
1272
Niu Technologies
NIU
$316M
| $50K | ﹤0.01% |
12,571
-683
| -5% | -$2.72K |
|
1273
SiriusXM
SIRI
$7.84B
| $50K | ﹤0.01% |
+1,120
| New | +$50K |
|
|
XXII
1274
22nd Century Group
XXII
$6.81M
| – | – |
0
| – | -$55K |
|
|
SBDS
1275
Solo Brands, Inc.
SBDS
$26M
| $50K | ﹤0.01% |
8,882
+2,197
| +33% | +$12.4K |
|