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 |
Financial Select Sector SPDR Fund
XLF
|
$42.3M |
| 2 |
Shopify
SHOP
|
$37.4M |
| 3 |
Verizon
VZ
|
$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
$33M |
| 5 |
Merck
MRK
|
$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
$38.3M |
| 2 |
Carnival Corp
CCL
|
$37.6M |
| 3 |
GE Aerospace
GE
|
$33M |
| 4 |
Advanced Micro Devices
AMD
|
$30.6M |
| 5 |
Micron Technology
MU
|
$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
101
Comcast
CMCSA
$125B
| $7.1M | 0.01% | 141,053 +35,115 | +33% | +$1.77M |
|
102
KLA
KLAC
$115B
| $7.01M | 0.01% | 16,292 +5,741 | +54% | +$2.47M |
|
103
Apple
AAPL
$3.45T
| $6.73M | 0.01% | 37,900 +13,200 | +53% | +$2.34M |
|
104
Beyond Meat
BYND
$192M
| $6.68M | 0.01% | 102,457 +24,486 | +31% | +$1.6M |
|
105
fuboTV
FUBO
$1.21B
| $6.63M | 0.01% | 426,910 +74,365 | +21% | +$1.15M |
|
106
Elevance Health
ELV
$71.8B
| $6.62M | 0.01% | 14,291 +13,077 | +1,077% | +$6.06M |
|
107
West Pharmaceutical
WST
$17.8B
| $6.59M | 0.01% | 14,047 +13,253 | +1,669% | +$6.22M |
|
108
Alibaba
BABA
$322B
| $6.56M | 0.01% | 55,185 -38,464 | -41% | -$4.57M |
|
109
VanEck Semiconductor ETF
SMH
$27B
| $6.53M | 0.01% | 21,158 -51,520 | -71% | -$15.9M |
|
110
Snap
SNAP
$12.1B
| $6.38M | 0.01% | 135,573 -146,595 | -52% | -$6.89M |
|
111
PENN Entertainment
PENN
$2.95B
| $6.35M | 0.01% | +122,456 | New | +$6.35M |
|
112
BHP
BHP
$142B
| $6.35M | 0.01% | 105,143 +101,175 | +2,550% | +$6.11M |
|
113
Teladoc Health
TDOC
$1.37B
| $6.33M | 0.01% | +68,925 | New | +$6.33M |
|
114
Western Digital
WDC
$27.9B
| $6.28M | 0.01% | 96,373 +96,273 | +96,273% | +$6.28M |
|
115
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$29.5B
| $6.28M | 0.01% | +47,398 | New | +$6.28M |
|
116
iShares Russell 2000 Growth ETF
IWO
$12.4B
| $6.25M | 0.01% | +21,341 | New | +$6.25M |
|
117
NVIDIA
NVDA
$4.24T
| $6.25M | 0.01% | 21,262 -38,848 | -65% | -$11.4M |
|
118
US Global Jets ETF
JETS
$845M
| $6.23M | 0.01% | 295,587 +216,629 | +274% | +$4.57M |
|
119
Guess, Inc.
GES
$875M
| $6.04M | 0.01% | +254,950 | New | +$6.04M |
|
120
Bank of America
BAC
$376B
| $5.94M | 0.01% | 133,479 +46,274 | +53% | +$2.06M |
|
121
Simon Property Group
SPG
$59B
| $5.9M | 0.01% | 36,918 -22,422 | -38% | -$3.58M |
|
122
Dollar Tree
DLTR
$22.8B
| $5.85M | 0.01% | +41,638 | New | +$5.85M |
|
123
Macy's
M
$3.59B
| $5.75M | 0.01% | +219,519 | New | +$5.75M |
|
124
Spirit AeroSystems
SPR
$4.88B
| $5.7M | 0.01% | 132,335 +8,939 | +7% | +$385K |
|
125
Mastercard
MA
$538B
| $5.52M | 0.01% | 15,366 -34,936 | -69% | -$12.6M |
|