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 | |
|---|---|---|---|---|---|---|
|
EMC
51
DELISTED
EMC CORPORATION
EMC
| $1.53M | 0.19% | +51,576 | New | +$1.53M |
|
52
Qualcomm
QCOM
$173B
| $1.52M | 0.18% | +20,384 | New | +$1.52M |
|
|
MNDT
53
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $1.51M | 0.18% | +47,775 | New | +$1.51M |
|
54
Vanguard Real Estate ETF
VNQ
$34.6B
| $1.47M | 0.18% | +18,111 | New | +$1.47M |
|
|
DISH
55
DELISTED
DISH Network Corp.
DISH
| $1.46M | 0.18% | +20,023 | New | +$1.46M |
|
56
Ross Stores
ROST
$48.1B
| $1.44M | 0.17% | +15,268 | New | +$1.44M |
|
57
Yum! Brands
YUM
$40.8B
| $1.42M | 0.17% | +19,517 | New | +$1.42M |
|
58
Stratasys
SSYS
$906M
| $1.42M | 0.17% | +17,102 | New | +$1.42M |
|
|
SUNE
59
DELISTED
SUNEDISON, INC COM
SUNE
| $1.35M | 0.16% | +68,931 | New | +$1.35M |
|
|
DO
60
DELISTED
Diamond Offshore Drilling
DO
| $1.32M | 0.16% | +35,853 | New | +$1.32M |
|
61
F5
FFIV
$18B
| $1.32M | 0.16% | +10,079 | New | +$1.32M |
|
62
Copa Holdings
CPA
$4.83B
| $1.31M | 0.16% | +12,625 | New | +$1.31M |
|
63
eBay
EBAY
$41.4B
| $1.26M | 0.15% | +22,471 | New | +$1.26M |
|
64
GoPro
GPRO
$247M
| $1.24M | 0.15% | +19,583 | New | +$1.24M |
|
65
Vipshop
VIPS
$8.25B
| $1.21M | 0.15% | +62,062 | New | +$1.21M |
|
66
First Solar
FSLR
$20.9B
| $1.2M | 0.15% | +26,955 | New | +$1.2M |
|
67
Medtronic
MDT
$119B
| $1.18M | 0.14% | +16,400 | New | +$1.18M |
|
68
Mohawk Industries
MHK
$8.24B
| $1.18M | 0.14% | +7,564 | New | +$1.18M |
|
69
United Rentals
URI
$61.5B
| $1.17M | 0.14% | +11,460 | New | +$1.17M |
|
70
Eli Lilly
LLY
$657B
| $1.17M | 0.14% | +16,921 | New | +$1.17M |
|
71
VanEck Gold Miners ETF
GDX
$19B
| $1.16M | 0.14% | +63,253 | New | +$1.16M |
|
72
Wabtec
WAB
$33.1B
| $1.14M | 0.14% | +13,101 | New | +$1.14M |
|
|
OVTI
73
DELISTED
OMNIVISION TECHNOLOGIES INC
OVTI
| $1.13M | 0.14% | +43,397 | New | +$1.13M |
|
|
KKD
74
DELISTED
KRISPY KREME DOUGHNUTS INC
KKD
| $1.13M | 0.14% | +57,112 | New | +$1.13M |
|
|
NBIS
75
Nebius Group N.V. Class A Ordinary Shares
NBIS
$16.3B
| $1.1M | 0.13% | +61,355 | New | +$1.1M |
|