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
|
$141M |
| 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 | |
|---|---|---|---|---|---|---|
76
British American Tobacco
BTI
$124B
| $8.01M | ﹤0.01% | 258,941 +57,402 | +28% | +$1.78M |
|
77
Mobileye
MBLY
$11.4B
| $7.74M | ﹤0.01% | +275,448 | New | +$7.74M |
|
78
Humana
HUM
$36.5B
| $7.66M | ﹤0.01% | 20,501 -7,861 | -28% | -$2.94M |
|
79
Gold Fields
GFI
$30B
| $7.62M | ﹤0.01% | +511,477 | New | +$7.62M |
|
80
ProShares Short QQQ
PSQ
$513M
| $7.52M | ﹤0.01% | 185,701 +112,233 | +153% | +$4.54M |
|
81
Trump Media & Technology Group
DJT
$4.91B
| $7.46M | ﹤0.01% | +227,803 | New | +$7.46M |
|
82
Constellation Energy
CEG
$96.2B
| $7.44M | ﹤0.01% | +37,126 | New | +$7.44M |
|
83
GraniteShares ETF Trust GraniteShares 2x Long NVDA Daily ETF
NVDL
$4.31B
| $7.43M | ﹤0.01% | 106,766 +96,827 | +974% | +$6.73M |
|
84
Warner Bros
WBD
$28.8B
| $7.35M | ﹤0.01% | 987,527 -236,320 | -19% | -$1.76M |
|
85
Micron Technology
MU
$133B
| $7.32M | ﹤0.01% | 55,662 -236,834 | -81% | -$31.1M |
|
86
iShares US Real Estate ETF
IYR
$3.76B
| $6.79M | ﹤0.01% | 77,379 +35,783 | +86% | +$3.14M |
|
87
iShares MSCI China ETF
MCHI
$7.91B
| $6.78M | ﹤0.01% | 160,815 +106,280 | +195% | +$4.48M |
|
88
ProShares Bitcoin Strategy ETF
BITO
$2.67B
| $6.73M | ﹤0.01% | 298,798 -607,693 | -67% | -$13.7M |
|
89
Unity
U
$16.7B
| $6.64M | ﹤0.01% | 408,479 +323,322 | +380% | +$5.26M |
|
90
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$4.91B
| $6.63M | ﹤0.01% | 136,749 +69,188 | +102% | +$3.36M |
|
91
Wolfspeed
WOLF
$194M
| $6.33M | ﹤0.01% | 277,965 +70,306 | +34% | +$1.6M |
|
92
Skyworks Solutions
SWKS
$11.1B
| $6.15M | ﹤0.01% | +57,728 | New | +$6.15M |
|
93
VF Corp
VFC
$5.91B
| $6.15M | ﹤0.01% | 455,213 +246,731 | +118% | +$3.33M |
|
94
Constellation Brands
STZ
$28.5B
| $6.07M | ﹤0.01% | +23,607 | New | +$6.07M |
|
95
Carvana
CVNA
$51.4B
| $5.96M | ﹤0.01% | 46,288 -14,106 | -23% | -$1.82M |
|
96
Tyson Foods
TSN
$20.2B
| $5.93M | ﹤0.01% | 103,752 -40,300 | -28% | -$2.3M |
|
97
Carrier Global
CARR
$55.5B
| $5.92M | ﹤0.01% | 93,923 +55,012 | +141% | +$3.47M |
|
98
ConocoPhillips
COP
$124B
| $5.92M | ﹤0.01% | +51,756 | New | +$5.92M |
|
99
Walt Disney
DIS
$213B
| $5.91M | ﹤0.01% | 59,516 -97,736 | -62% | -$9.7M |
|
100
Transocean
RIG
$2.86B
| $5.83M | ﹤0.01% | 1,089,497 -48,825 | -4% | -$261K |
|