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 |
Apple
AAPL
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1251
TD Synnex
SNX
$12.5B
| $48K | ﹤0.01% |
+497
| New | +$48K |
|
|
TRVG
1252
trivago
TRVG
$237M
| $48K | ﹤0.01% |
+6,444
| New | +$48K |
|
|
EXK
1253
Endeavour Silver
EXK
$1.8B
| $47K | ﹤0.01% |
12,149
-14,604
| -55% | -$56.5K |
|
1254
First Citizens BancShares
FCNCA
$25.7B
| $47K | ﹤0.01% |
49
-507
| -91% | -$486K |
|
1255
Pliant Therapeutics
PLRX
$97M
| $47K | ﹤0.01% |
+1,776
| New | +$47K |
|
1256
Sumitomo Mitsui Financial
SMFG
$107B
| $47K | ﹤0.01% |
+5,924
| New | +$47K |
|
1257
Glimpse Group
VRAR
$32.2M
| $47K | ﹤0.01% |
12,764
+8,442
| +195% | +$31.1K |
|
|
TRTN
1258
DELISTED
Triton International Limited
TRTN
| $47K | ﹤0.01% |
751
-2,547
| -77% | -$159K |
|
|
SBDS
1259
Solo Brands, Inc.
SBDS
$25.5M
| $47K | ﹤0.01% |
6,685
-5,303
| -44% | -$37.3K |
|
1260
Clearwater Paper
CLW
$346M
| $46K | ﹤0.01% |
+1,391
| New | +$46K |
|
1261
Enlivex Therapeutics
ENLV
$25.3M
| $46K | ﹤0.01% |
12,713
+4,560
| +56% | +$16.5K |
|
1262
Mueller Industries
MLI
$11B
| $46K | ﹤0.01% |
+1,254
| New | +$46K |
|
1263
Spok Holdings
SPOK
$358M
| $46K | ﹤0.01% |
4,579
-7,731
| -63% | -$77.7K |
|
1264
Arrowhead Research
ARWR
$4.23B
| $45K | ﹤0.01% |
+1,786
| New | +$45K |
|
1265
Mayville Engineering Co
MEC
$291M
| $45K | ﹤0.01% |
3,045
-2,214
| -42% | -$32.7K |
|
1266
Nine Energy Service
NINE
$30.3M
| $45K | ﹤0.01% |
8,179
-624
| -7% | -$3.43K |
|
1267
Odyssey Marine Exploration
OMEX
$78.2M
| $45K | ﹤0.01% |
14,131
+13,982
| +9,384% | +$44.5K |
|
1268
Soho House & Co
SHCO
$1.73B
| $45K | ﹤0.01% |
6,923
+5,715
| +473% | +$37.1K |
|
|
TGB
1269
Taseko Mines
TGB
$1.13B
| $45K | ﹤0.01% |
27,224
-30,510
| -53% | -$50.4K |
|
1270
Advance Auto Parts
AAP
$3.64B
| $44K | ﹤0.01% |
363
-5,623
| -94% | -$682K |
|
1271
Barings BDC
BBDC
$985M
| $44K | ﹤0.01% |
+5,622
| New | +$44K |
|
1272
Cytokinetics
CYTK
$6.24B
| $44K | ﹤0.01% |
+1,263
| New | +$44K |
|
1273
NatWest
NWG
$58.2B
| $44K | ﹤0.01% |
6,791
-28,501
| -81% | -$185K |
|
1274
Stevanato
STVN
$7.05B
| $44K | ﹤0.01% |
+1,715
| New | +$44K |
|
1275
Direxion Daily Robotics, Artificial Intelligence & Automation Index Bull 2X Shares
UBOT
$29.7M
| $44K | ﹤0.01% |
2,481
+2,225
| +869% | +$39.5K |
|