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
|
+$114M |
| 2 |
Citigroup
C
|
+$77M |
| 3 |
Broadcom
AVGO
|
+$53M |
| 4 |
Pinduoduo
PDD
|
+$49.7M |
| 5 |
Intel
INTC
|
+$44.5M |
Top Sells
| 1 |
Energy Select Sector SPDR Fund
XLE
|
+$92.5M |
| 2 |
Pfizer
PFE
|
+$67.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$44.9M |
| 5 |
PayPal
PYPL
|
+$44.4M |
Sector Composition
| 1 | Technology | 27.91% |
| 2 | Consumer Discretionary | 14.92% |
| 3 | Healthcare | 10.74% |
| 4 | Financials | 10.11% |
| 5 | Materials | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
701
BuzzFeed
BZFD
$73.3M
| $395K | ﹤0.01% |
143,407
+141,739
| +8,498% | +$390K |
|
702
Direxion Daily NVDA Bull 2X Shares
NVDU
$699M
| $394K | ﹤0.01% |
3,546
-14,202
| -80% | -$1.58M |
|
703
B. Riley Financial
RILY
$188M
| $394K | ﹤0.01% |
22,357
-63,185
| -74% | -$1.11M |
|
704
NuScale Power
SMR
$4.74B
| $393K | ﹤0.01% |
33,653
-37,080
| -52% | -$433K |
|
705
Global X Robotics & Artificial Intelligence ETF
BOTZ
$2.9B
| $392K | ﹤0.01% |
12,737
+9,584
| +304% | +$295K |
|
706
Western Midstream Partners
WES
$14.6B
| $392K | ﹤0.01% |
+9,881
| New | +$392K |
|
707
Krispy Kreme
DNUT
$520M
| $391K | ﹤0.01% |
36,351
-95,571
| -72% | -$1.03M |
|
708
Varonis Systems
VRNS
$6.35B
| $387K | ﹤0.01% |
8,076
+7,444
| +1,178% | +$357K |
|
709
Bread Financial
BFH
$2.99B
| $386K | ﹤0.01% |
+8,664
| New | +$386K |
|
710
Jazz Pharmaceuticals
JAZZ
$7.76B
| $383K | ﹤0.01% |
+3,593
| New | +$383K |
|
711
Zillow
ZG
$20.6B
| $381K | ﹤0.01% |
8,461
-19,209
| -69% | -$865K |
|
712
YieldMax NVDA Option Income Strategy ETF
NVDY
$1.8B
| $380K | ﹤0.01% |
+12,997
| New | +$380K |
|
713
Direxion Daily FTSE China Bear 3X Shares
YANG
$164M
| $379K | ﹤0.01% |
+2,173
| New | +$379K |
|
714
AudioEye
AEYE
$164M
| $377K | ﹤0.01% |
21,418
+16,665
| +351% | +$293K |
|
715
Eversource Energy
ES
$23.8B
| $374K | ﹤0.01% |
6,596
+965
| +17% | +$54.7K |
|
716
Photronics
PLAB
$1.32B
| $374K | ﹤0.01% |
15,182
+11,815
| +351% | +$291K |
|
717
Brookfield Asset Management
BAM
$92.1B
| $372K | ﹤0.01% |
+9,784
| New | +$372K |
|
718
Black Stone Minerals
BSM
$2.65B
| $371K | ﹤0.01% |
23,706
+22,771
| +2,435% | +$356K |
|
719
Invesco Mortgage Capital
IVR
$514M
| $371K | ﹤0.01% |
39,648
+21,419
| +117% | +$200K |
|
720
Victoria's Secret
VSCO
$2.1B
| $370K | ﹤0.01% |
+20,983
| New | +$370K |
|
721
Arrowhead Research
ARWR
$3.88B
| $369K | ﹤0.01% |
14,220
-6,791
| -32% | -$176K |
|
722
STAAR Surgical
STAA
$1.38B
| $368K | ﹤0.01% |
+7,747
| New | +$368K |
|
|
SPWR
723
DELISTED
SunPower Corporation Common Stock
SPWR
| $368K | ﹤0.01% |
+124,584
| New | +$368K |
|
724
Aehr Test Systems
AEHR
$842M
| $366K | ﹤0.01% |
32,819
-6,615
| -17% | -$73.8K |
|
725
CoreCivic
CXW
$2.25B
| $366K | ﹤0.01% |
28,235
-15,510
| -35% | -$201K |
|