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 | |
|---|---|---|---|---|---|---|
101
Tyson Foods
TSN
$20B
| $5.1M | ﹤0.01% |
+85,992
| New | +$5.1M |
|
102
STMicroelectronics
STM
$23B
| $5.04M | ﹤0.01% |
94,292
+40,574
| +76% | +$2.17M |
|
103
United States Natural Gas Fund
UNG
$621M
| $4.99M | ﹤0.01% |
718,693
+565,091
| +368% | +$3.92M |
|
104
ProShares Bitcoin Strategy ETF
BITO
$2.65B
| $4.87M | ﹤0.01% |
277,714
+277,684
| +925,613% | +$4.86M |
|
105
Viking Therapeutics
VKTX
$3.02B
| $4.82M | ﹤0.01% |
289,240
-108,853
| -27% | -$1.81M |
|
106
SPDR S&P Retail ETF
XRT
$428M
| $4.63M | ﹤0.01% |
+73,045
| New | +$4.63M |
|
107
Baxter International
BAX
$12.1B
| $4.62M | ﹤0.01% |
113,842
+109,643
| +2,611% | +$4.45M |
|
|
SPLK
108
DELISTED
Splunk Inc
SPLK
| $4.62M | ﹤0.01% |
+48,138
| New | +$4.62M |
|
109
Teck Resources
TECK
$16.5B
| $4.48M | ﹤0.01% |
+122,850
| New | +$4.48M |
|
110
Strategy Inc Common Stock Class A
MSTR
$93.6B
| $4.3M | ﹤0.01% |
14,694
+12,278
| +508% | +$3.59M |
|
111
Direxion Daily Financial Bull 3x Shares
FAS
$2.66B
| $4.21M | ﹤0.01% |
+73,044
| New | +$4.21M |
|
112
Canadian Solar
CSIQ
$663M
| $4.2M | ﹤0.01% |
105,545
-72,654
| -41% | -$2.89M |
|
113
iShares Mortgage Real Estate ETF
REM
$602M
| $4.16M | ﹤0.01% |
190,543
+102,710
| +117% | +$2.24M |
|
114
Dominion Energy
D
$50.3B
| $4.15M | ﹤0.01% |
74,315
-53,446
| -42% | -$2.99M |
|
115
Manchester United
MANU
$2.73B
| $4.07M | ﹤0.01% |
183,908
+183,768
| +131,263% | +$4.07M |
|
116
American Express
AXP
$225B
| $4.02M | ﹤0.01% |
+24,372
| New | +$4.02M |
|
117
Energy Transfer Partners
ET
$60.3B
| $3.95M | ﹤0.01% |
316,896
-80,390
| -20% | -$1M |
|
118
Trade Desk
TTD
$26.3B
| $3.9M | ﹤0.01% |
64,026
+62,426
| +3,902% | +$3.8M |
|
119
e.l.f. Beauty
ELF
$7.38B
| $3.87M | ﹤0.01% |
46,998
+44,544
| +1,815% | +$3.67M |
|
|
DISH
120
DELISTED
DISH Network Corp.
DISH
| $3.82M | ﹤0.01% |
+409,253
| New | +$3.82M |
|
121
Unity
U
$16.5B
| $3.77M | ﹤0.01% |
116,322
+107,731
| +1,254% | +$3.49M |
|
122
The Mosaic Company
MOS
$10.4B
| $3.77M | ﹤0.01% |
82,184
+71,589
| +676% | +$3.28M |
|
123
United States Oil Fund
USO
$967M
| $3.76M | ﹤0.01% |
56,667
-95,866
| -63% | -$6.37M |
|
|
FTCH
124
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $3.76M | ﹤0.01% |
764,805
+406,992
| +114% | +$2M |
|
125
ServiceNow
NOW
$191B
| $3.76M | ﹤0.01% |
+8,081
| New | +$3.76M |
|