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 | |
|---|---|---|---|---|---|---|
26
Kinder Morgan
KMI
$60B
| $2.6M | 0.31% | +61,402 | New | +$2.6M |
|
27
Skyworks Solutions
SWKS
$11.1B
| $2.58M | 0.31% | +35,531 | New | +$2.58M |
|
|
PXD
28
DELISTED
Pioneer Natural Resource Co.
PXD
| $2.47M | 0.3% | +16,609 | New | +$2.47M |
|
|
WLL
29
DELISTED
Whiting Petroleum Corporation
WLL
| $2.46M | 0.3% | +74,559 | New | +$2.46M |
|
30
SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$1.9B
| $2.38M | 0.29% | +49,794 | New | +$2.38M |
|
31
Williams Companies
WMB
$70.7B
| $2.37M | 0.29% | +52,821 | New | +$2.37M |
|
32
Cheniere Energy
LNG
$53.1B
| $2.35M | 0.29% | +33,443 | New | +$2.35M |
|
33
Bausch Health
BHC
$2.74B
| $2.23M | 0.27% | +15,613 | New | +$2.23M |
|
34
Yelp
YELP
$1.99B
| $2.21M | 0.27% | +40,360 | New | +$2.21M |
|
35
APA Corp
APA
$8.31B
| $2.2M | 0.27% | +35,125 | New | +$2.2M |
|
36
SPDR S&P Retail ETF
XRT
$425M
| $2.17M | 0.26% | +22,583 | New | +$2.17M |
|
37
Union Pacific
UNP
$133B
| $2.15M | 0.26% | +18,080 | New | +$2.15M |
|
38
Johnson & Johnson
JNJ
$427B
| $2.15M | 0.26% | +20,588 | New | +$2.15M |
|
|
CHK
39
DELISTED
Chesapeake Energy Corporation
CHK
| $2.14M | 0.26% | +109,551 | New | +$2.14M |
|
40
Teva Pharmaceuticals
TEVA
$21.1B
| $2.11M | 0.26% | +36,656 | New | +$2.11M |
|
41
Transocean
RIG
$2.86B
| $2.06M | 0.25% | +112,230 | New | +$2.06M |
|
42
CF Industries
CF
$14B
| $2.05M | 0.25% | +7,529 | New | +$2.05M |
|
43
Illumina
ILMN
$15.8B
| $2.03M | 0.25% | +11,014 | New | +$2.03M |
|
44
Melco Resorts & Entertainment
MLCO
$3.88B
| $1.92M | 0.23% | +75,656 | New | +$1.92M |
|
45
Trip.com Group
TCOM
$48.2B
| $1.92M | 0.23% | +42,218 | New | +$1.92M |
|
46
Capri Holdings
CPRI
$2.45B
| $1.89M | 0.23% | +25,095 | New | +$1.89M |
|
|
CBST
47
DELISTED
CUBIST PHARMACEUTICALS INC
CBST
| $1.74M | 0.21% | +17,324 | New | +$1.74M |
|
48
Boeing
BA
$177B
| $1.68M | 0.2% | +12,900 | New | +$1.68M |
|
49
Costco
COST
$418B
| $1.64M | 0.2% | +11,589 | New | +$1.64M |
|
50
Blackstone
BX
$134B
| $1.61M | 0.19% | +47,463 | New | +$1.61M |
|