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
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
WBA
76
DELISTED
Walgreens Boots Alliance
WBA
| $9.43M | 0.01% | 1,010,899 -499,958 | -33% | -$4.66M |
|
77
Salesforce
CRM
$245B
| $9.43M | 0.01% | 28,203 +9,985 | +55% | +$3.34M |
|
78
Fiserv
FI
$75.1B
| $9.12M | 0.01% | 44,409 +20,544 | +86% | +$4.22M |
|
79
CleanSpark
CLSK
$2.66B
| $9.09M | 0.01% | 987,082 +510,795 | +107% | +$4.7M |
|
80
Roku
ROKU
$14.2B
| $9.07M | 0.01% | 122,059 +72,013 | +144% | +$5.35M |
|
81
XPeng
XPEV
$20B
| $9.03M | 0.01% | 763,945 +455,964 | +148% | +$5.39M |
|
82
T-Mobile US
TMUS
$284B
| $8.98M | 0.01% | +40,705 | New | +$8.98M |
|
83
Rivian
RIVN
$16.5B
| $8.89M | 0.01% | 668,270 -33,637 | -5% | -$447K |
|
84
Honeywell
HON
$139B
| $8.8M | ﹤0.01% | 38,977 +36,487 | +1,465% | +$8.24M |
|
85
Exxon Mobil
XOM
$487B
| $8.76M | ﹤0.01% | +81,429 | New | +$8.76M |
|
86
SoFi Technologies
SOFI
$30.6B
| $8.61M | ﹤0.01% | 558,783 -698,996 | -56% | -$10.8M |
|
87
Walt Disney
DIS
$213B
| $8.58M | ﹤0.01% | 77,035 -111,189 | -59% | -$12.4M |
|
88
Carvana
CVNA
$51.4B
| $8.56M | ﹤0.01% | +42,093 | New | +$8.56M |
|
89
Materials Select Sector SPDR Fund
XLB
$5.53B
| $8.49M | ﹤0.01% | +100,875 | New | +$8.49M |
|
90
Ford
F
$46.8B
| $8.48M | ﹤0.01% | 856,083 +154,437 | +22% | +$1.53M |
|
91
Li Auto
LI
$23.7B
| $8.3M | ﹤0.01% | 345,796 +194,722 | +129% | +$4.67M |
|
92
Trane Technologies
TT
$92.5B
| $8.04M | ﹤0.01% | 21,761 +1,130 | +5% | +$417K |
|
93
Direxion Daily FTSE China Bull 3X Shares
YINN
$1.21B
| $8.01M | ﹤0.01% | 286,661 +35,484 | +14% | +$991K |
|
94
Global Payments
GPN
$21.5B
| $8M | ﹤0.01% | 71,391 +27,446 | +62% | +$3.08M |
|
95
Costco
COST
$418B
| $7.76M | ﹤0.01% | 8,469 +6,209 | +275% | +$5.69M |
|
96
ASML
ASML
$292B
| $7.47M | ﹤0.01% | 10,781 -6,317 | -37% | -$4.38M |
|
97
iShares MSCI China ETF
MCHI
$7.91B
| $7.43M | ﹤0.01% | 158,536 +6,184 | +4% | +$290K |
|
98
AMC Entertainment Holdings
AMC
$1.44B
| $7.37M | ﹤0.01% | 1,850,822 +1,244,035 | +205% | +$4.95M |
|
99
iShares MSCI Brazil ETF
EWZ
$5.45B
| $7.06M | ﹤0.01% | 313,699 -75,446 | -19% | -$1.7M |
|
100
NextEra Energy, Inc.
NEE
$148B
| $6.95M | ﹤0.01% | 96,980 +29,777 | +44% | +$2.13M |
|