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
|
$32.9M |
| 2 |
Gilead Sciences
GILD
|
$30.1M |
| 3 |
Booking.com
BKNG
|
$29M |
| 4 |
Amazon
AMZN
|
$25.6M |
| 5 |
Baidu
BIDU
|
$16.2M |
Top Sells
Sector Composition
| 1 | Consumer Discretionary | 23.68% |
| 2 | Technology | 19.11% |
| 3 | Healthcare | 14.31% |
| 4 | Energy | 9.3% |
| 5 | Communication Services | 8.24% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
76
Deere & Co
DE
$129B
| $1.1M | 0.13% | +12,410 | New | +$1.1M |
|
77
Intuitive Surgical
ISRG
$170B
| $1.08M | 0.13% | +2,043 | New | +$1.08M |
|
78
Mercado Libre
MELI
$125B
| $1.07M | 0.13% | +8,386 | New | +$1.07M |
|
79
GSK
GSK
$79.9B
| $1.07M | 0.13% | +25,009 | New | +$1.07M |
|
80
Intercontinental Exchange
ICE
$101B
| $1.06M | 0.13% | +4,854 | New | +$1.06M |
|
|
APOL
81
DELISTED
Apollo Education Group Inc Class A
APOL
| $1.03M | 0.12% | +30,184 | New | +$1.03M |
|
82
BP
BP
$90.8B
| $1.02M | 0.12% | +26,817 | New | +$1.02M |
|
83
Vanguard FTSE Europe ETF
VGK
$26.8B
| $1.01M | 0.12% | +19,342 | New | +$1.01M |
|
84
Whirlpool
WHR
$5.21B
| $1.01M | 0.12% | +5,193 | New | +$1.01M |
|
85
KB Home
KBH
$4.32B
| $962K | 0.12% | +58,110 | New | +$962K |
|
|
GMCR
86
DELISTED
KEURIG GREEN MTN INC
GMCR
| $959K | 0.12% | +7,245 | New | +$959K |
|
|
BRCM
87
DELISTED
BROADCOM CORP CL-A
BRCM
| $946K | 0.11% | +21,840 | New | +$946K |
|
88
Teradata
TDC
$1.98B
| $932K | 0.11% | +21,347 | New | +$932K |
|
89
NOV
NOV
$4.94B
| $923K | 0.11% | +14,087 | New | +$923K |
|
90
General Motors
GM
$55.8B
| $902K | 0.11% | +25,834 | New | +$902K |
|
91
Edwards Lifesciences
EW
$47.8B
| $900K | 0.11% | +7,066 | New | +$900K |
|
92
Tapestry
TPR
$21.2B
| $891K | 0.11% | +23,716 | New | +$891K |
|
|
HES
93
DELISTED
Hess
HES
| $871K | 0.11% | +11,797 | New | +$871K |
|
94
Merck
MRK
$210B
| $867K | 0.11% | +15,265 | New | +$867K |
|
95
Williams-Sonoma
WSM
$23.1B
| $857K | 0.1% | +11,324 | New | +$857K |
|
96
Golar LNG
GLNG
$4.48B
| $856K | 0.1% | +23,474 | New | +$856K |
|
|
BLUE
97
DELISTED
bluebird bio
BLUE
| $840K | 0.1% | +9,160 | New | +$840K |
|
98
Wynn Resorts
WYNN
$13.2B
| $840K | 0.1% | +5,648 | New | +$840K |
|
|
LFC
99
DELISTED
China Life Insurance Company Ltd.
LFC
| $833K | 0.1% | +14,191 | New | +$833K |
|
100
Royal Caribbean
RCL
$98.7B
| $805K | 0.1% | +9,762 | New | +$805K |
|