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 | |
|---|---|---|---|---|---|---|
351
Tidewater
TDW
$2.86B
| $959K | ﹤0.01% |
21,778
+20,886
| +2,341% | +$920K |
|
352
Lyft
LYFT
$6.91B
| $957K | ﹤0.01% |
103,314
+33,556
| +48% | +$311K |
|
|
CPE
353
DELISTED
Callon Petroleum Company
CPE
| $957K | ﹤0.01% |
28,632
+26,633
| +1,332% | +$890K |
|
354
Array Technologies
ARRY
$1.37B
| $954K | ﹤0.01% |
+43,611
| New | +$954K |
|
355
Manitowoc
MTW
$359M
| $949K | ﹤0.01% |
55,552
+13,619
| +32% | +$233K |
|
356
Hecla Mining
HL
$6.04B
| $947K | ﹤0.01% |
149,739
-67,386
| -31% | -$426K |
|
|
HIBB
357
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $944K | ﹤0.01% |
16,020
+11,481
| +253% | +$677K |
|
358
BioMarin Pharmaceuticals
BMRN
$11.1B
| $938K | ﹤0.01% |
+9,652
| New | +$938K |
|
359
AGCO
AGCO
$8.28B
| $925K | ﹤0.01% |
6,842
-3,473
| -34% | -$470K |
|
360
Travelers Companies
TRV
$62B
| $917K | ﹤0.01% |
+5,351
| New | +$917K |
|
361
Helmerich & Payne
HP
$2.01B
| $911K | ﹤0.01% |
+25,487
| New | +$911K |
|
362
Emcor
EME
$28B
| $903K | ﹤0.01% |
5,558
+3,813
| +219% | +$619K |
|
363
Franco-Nevada
FNV
$37.3B
| $902K | ﹤0.01% |
+6,188
| New | +$902K |
|
364
Arista Networks
ANET
$180B
| $897K | ﹤0.01% |
+21,388
| New | +$897K |
|
|
BLUE
365
DELISTED
bluebird bio
BLUE
| $894K | ﹤0.01% |
14,070
+7,285
| +107% | +$463K |
|
366
HF Sinclair
DINO
$9.56B
| $877K | ﹤0.01% |
18,142
+13,229
| +269% | +$640K |
|
367
Direxion Daily MSCI Brazil Bull 2X Shares
BRZU
$133M
| $876K | ﹤0.01% |
+13,862
| New | +$876K |
|
368
Republic Services
RSG
$71.7B
| $874K | ﹤0.01% |
6,468
+4,729
| +272% | +$639K |
|
369
Vital Energy
VTLE
$635M
| $867K | ﹤0.01% |
19,054
+7,391
| +63% | +$336K |
|
370
Enovix
ENVX
$1.81B
| $864K | ﹤0.01% |
66,251
-105,758
| -61% | -$1.38M |
|
371
IAC Inc
IAC
$2.98B
| $855K | ﹤0.01% |
20,199
+18,347
| +991% | +$777K |
|
372
Lightspeed Commerce
LSPD
$1.65B
| $855K | ﹤0.01% |
56,358
-20,591
| -27% | -$312K |
|
|
DO
373
DELISTED
Diamond Offshore Drilling, Inc.
DO
| $843K | ﹤0.01% |
70,056
-338,840
| -83% | -$4.08M |
|
374
Amplify Junior Silver Miners ETF
SILJ
$2.07B
| $842K | ﹤0.01% |
+75,743
| New | +$842K |
|
375
Teekay Tankers
TNK
$1.8B
| $842K | ﹤0.01% |
19,624
+15,296
| +353% | +$656K |
|