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 |
Advanced Micro Devices
AMD
|
$17.7M |
| 2 |
iShares MSCI EAFE ETF
EFA
|
$10.1M |
| 3 |
NIO
NIO
|
$7.66M |
| 4 |
Alibaba
BABA
|
$7.54M |
| 5 |
Micron Technology
MU
|
$6.73M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$101M |
| 2 |
SPDR Gold Trust
GLD
|
$15.2M |
| 3 |
Amazon
AMZN
|
$9.5M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
$8.76M |
| 5 |
Technology Select Sector SPDR Fund
XLK
|
$7.41M |
Sector Composition
| 1 | Technology | 18.66% |
| 2 | Consumer Discretionary | 14.99% |
| 3 | Communication Services | 10.06% |
| 4 | Healthcare | 9.68% |
| 5 | Financials | 9.59% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
476
Verisk Analytics
VRSK
$37.8B
| $1.19M | ﹤0.01% |
6,711
| – | – |
|
477
Crocs
CROX
$4.72B
| $1.18M | ﹤0.01% |
10,114
| – | – |
|
478
Vodafone
VOD
$28.5B
| $1.17M | ﹤0.01% |
68,866
+8,100
| +13% | +$138K |
|
479
CoreCivic
CXW
$2.11B
| $1.17M | ﹤0.01% |
110,403
| – | – |
|
|
LAC
480
DELISTED
Lithium Americas Corp. Common Shares
LAC
| $1.17M | ﹤0.01% |
79,175
-6,293
| -7% | -$92.8K |
|
481
Yum China
YUMC
$16.5B
| $1.16M | ﹤0.01% |
17,619
-103
| -0.6% | -$6.8K |
|
482
iShares Select U.S. REIT ETF
ICF
$1.92B
| $1.15M | ﹤0.01% |
17,601
| – | – |
|
483
ODP
ODP
$668M
| $1.15M | ﹤0.01% |
23,299
+200
| +0.9% | +$9.87K |
|
484
ProShares UltraPro Short QQQ
SQQQ
$2.32B
| $1.15M | ﹤0.01% |
5,036
+211
| +4% | +$48.2K |
|
485
Schrodinger
SDGR
$1.41B
| $1.14M | ﹤0.01% |
14,954
+100
| +0.7% | +$7.65K |
|
|
SP
486
DELISTED
SP Plus Corporation
SP
| $1.14M | ﹤0.01% |
36,610
-1,800
| -5% | -$56K |
|
487
Aurinia Pharmaceuticals
AUPH
$1.63B
| $1.14M | ﹤0.01% |
87,697
-1,902
| -2% | -$24.7K |
|
488
Palo Alto Networks
PANW
$130B
| $1.14M | ﹤0.01% |
18,396
+348
| +2% | +$21.5K |
|
489
Foot Locker
FL
$2.29B
| $1.14M | ﹤0.01% |
18,177
+341
| +2% | +$21.3K |
|
490
Sapiens International
SPNS
$2.4B
| $1.13M | ﹤0.01% |
42,652
+300
| +0.7% | +$7.98K |
|
491
Cencora
COR
$56.7B
| $1.13M | ﹤0.01% |
9,729
| – | – |
|
492
Galicia Financial Group
GGAL
$6.44B
| $1.13M | ﹤0.01% |
132,955
-300
| -0.2% | -$2.55K |
|
493
Vanguard FTSE Emerging Markets ETF
VWO
$97.2B
| $1.13M | ﹤0.01% |
20,915
| – | – |
|
|
VWTR
494
DELISTED
Vidler Water Resouces, Inc. Common Stock
VWTR
| $1.13M | ﹤0.01% |
84,130
+500
| +0.6% | +$6.7K |
|
495
ProShares Ultra Financials
UYG
$864M
| $1.12M | ﹤0.01% |
17,831
| – | – |
|
496
Global X Autonomous & Electric Vehicles ETF
DRIV
$338M
| $1.11M | ﹤0.01% |
39,322
+100
| +0.3% | +$2.83K |
|
|
BERY
497
DELISTED
Berry Global Group, Inc.
BERY
| $1.11M | ﹤0.01% |
18,486
| – | – |
|
498
Root
ROOT
$1.43B
| $1.1M | ﹤0.01% |
6,147
+1,748
| +40% | +$313K |
|
499
Franklin Resources
BEN
$13B
| $1.1M | ﹤0.01% |
33,954
-200
| -0.6% | -$6.45K |
|
|
SGEN
500
DELISTED
Seagen Inc. Common Stock
SGEN
| $1.09M | ﹤0.01% |
6,911
-500
| -7% | -$79.1K |
|