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 |
Goldman Sachs
GS
|
$38.4M |
| 2 |
Micron Technology
MU
|
$23.7M |
| 3 |
NVIDIA
NVDA
|
$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$21.7M |
| 5 |
Wells Fargo
WFC
|
$20.4M |
Top Sells
| 1 |
Citigroup
C
|
$21.6M |
| 2 |
Apple
AAPL
|
$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
$13.3M |
| 4 |
Eli Lilly
LLY
|
$9.69M |
| 5 |
Mastercard
MA
|
$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
26
Expedia Group
EXPE
$26.6B
| $9.25M | 0.4% | 73,306 +72,385 | +7,859% | +$9.13M |
|
|
MJN
27
DELISTED
Mead Johnson Nutrition Company
MJN
| $9.23M | 0.4% | +103,564 | New | +$9.23M |
|
28
Wynn Resorts
WYNN
$13.2B
| $9.11M | 0.39% | 79,519 +34,083 | +75% | +$3.91M |
|
|
CELG
29
DELISTED
Celgene Corp
CELG
| $9.05M | 0.39% | 72,693 +57,546 | +380% | +$7.16M |
|
|
MON
30
DELISTED
Monsanto Co
MON
| $8.32M | 0.36% | +73,505 | New | +$8.32M |
|
31
Visa
V
$683B
| $8.1M | 0.35% | 91,155 +35,570 | +64% | +$3.16M |
|
32
Viatris
VTRS
$12.3B
| $7.9M | 0.34% | 202,697 +192,453 | +1,879% | +$7.5M |
|
33
Walt Disney
DIS
$213B
| $7.88M | 0.34% | 69,520 -10,759 | -13% | -$1.22M |
|
34
Western Digital
WDC
$27.9B
| $7.4M | 0.32% | 89,633 +59,849 | +201% | +$4.94M |
|
35
Intel
INTC
$107B
| $7.39M | 0.32% | +204,777 | New | +$7.39M |
|
36
PepsiCo
PEP
$204B
| $7.12M | 0.31% | +63,683 | New | +$7.12M |
|
37
Mondelez International
MDLZ
$79.5B
| $7.03M | 0.3% | 163,284 -11,699 | -7% | -$504K |
|
38
Exxon Mobil
XOM
$487B
| $7M | 0.3% | +85,394 | New | +$7M |
|
39
Macy's
M
$3.59B
| $6.95M | 0.3% | 234,592 +196,898 | +522% | +$5.84M |
|
40
Baidu
BIDU
$32.8B
| $6.92M | 0.3% | 40,133 +22,706 | +130% | +$3.92M |
|
41
Home Depot
HD
$405B
| $6.88M | 0.3% | 46,882 +6,840 | +17% | +$1M |
|
42
Charter Communications
CHTR
$36.3B
| $6.51M | 0.28% | +19,903 | New | +$6.51M |
|
43
Las Vegas Sands
LVS
$39.6B
| $6.42M | 0.28% | 112,457 +20,780 | +23% | +$1.19M |
|
|
RTN
44
DELISTED
Raytheon Company
RTN
| $6.29M | 0.27% | +41,216 | New | +$6.29M |
|
45
Financial Select Sector SPDR Fund
XLF
$54.1B
| $6.18M | 0.27% | 260,639 +150,658 | +137% | +$3.57M |
|
46
Chevron
CVX
$324B
| $6.12M | 0.26% | 57,023 -18,468 | -24% | -$1.98M |
|
47
JPMorgan Chase
JPM
$829B
| $6.09M | 0.26% | 69,350 -34,059 | -33% | -$2.99M |
|
48
Biogen
BIIB
$19.4B
| $6.09M | 0.26% | 22,270 +4,340 | +24% | +$1.19M |
|
49
Broadcom
AVGO
$1.4T
| $6.09M | 0.26% | +27,798 | New | +$6.09M |
|
50
General Dynamics
GD
$87.3B
| $6.02M | 0.26% | +32,152 | New | +$6.02M |
|