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 |
Financial Select Sector SPDR Fund
XLF
|
$42.3M |
| 2 |
Shopify
SHOP
|
$37.4M |
| 3 |
Verizon
VZ
|
$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
$33M |
| 5 |
Merck
MRK
|
$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
$38.3M |
| 2 |
Carnival Corp
CCL
|
$37.6M |
| 3 |
GE Aerospace
GE
|
$33M |
| 4 |
Advanced Micro Devices
AMD
|
$30.6M |
| 5 |
Micron Technology
MU
|
$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
26
Estee Lauder
EL
$33B
| $19.8M | 0.02% | 53,361 +50,124 | +1,548% | +$18.6M |
|
27
Wells Fargo
WFC
$263B
| $19.5M | 0.02% | +405,674 | New | +$19.5M |
|
|
B
28
Barrick Mining Corporation
B
$45.4B
| $19.4M | 0.02% | 1,018,466 +672,483 | +194% | +$12.8M |
|
29
Accenture
ACN
$162B
| $19.3M | 0.02% | +46,648 | New | +$19.3M |
|
30
Freeport-McMoran
FCX
$63.7B
| $19.3M | 0.02% | 461,846 -62,651 | -12% | -$2.61M |
|
31
Sea Limited
SE
$110B
| $17.7M | 0.02% | 79,236 +78,886 | +22,539% | +$17.6M |
|
32
Novavax
NVAX
$1.21B
| $17.3M | 0.02% | 120,917 +55,977 | +86% | +$8.01M |
|
33
Consumer Discretionary Select Sector SPDR Fund
XLY
$23.2B
| $17.3M | 0.02% | +84,426 | New | +$17.3M |
|
34
Uber
UBER
$196B
| $17.1M | 0.02% | 408,212 +349,738 | +598% | +$14.7M |
|
35
Baidu
BIDU
$32.8B
| $16.1M | 0.02% | 108,275 -35,461 | -25% | -$5.28M |
|
36
Roblox
RBLX
$86.4B
| $16M | 0.02% | 154,709 +66,934 | +76% | +$6.9M |
|
37
Norwegian Cruise Line
NCLH
$11.2B
| $15.9M | 0.02% | 767,478 +540,959 | +239% | +$11.2M |
|
38
ASML
ASML
$292B
| $14.7M | 0.01% | 18,481 +11,394 | +161% | +$9.07M |
|
39
Rio Tinto
RIO
$102B
| $14.7M | 0.01% | 219,384 +197,634 | +909% | +$13.2M |
|
40
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$11.2B
| $14.4M | 0.01% | 211,093 +153,927 | +269% | +$10.5M |
|
41
Intel
INTC
$107B
| $14.4M | 0.01% | 278,650 -141,112 | -34% | -$7.27M |
|
42
AT&T
T
$209B
| $14.2M | 0.01% | 579,239 -395,579 | -41% | -$9.73M |
|
43
Las Vegas Sands
LVS
$39.6B
| $14M | 0.01% | 372,038 +245,891 | +195% | +$9.26M |
|
44
Royal Caribbean
RCL
$98.7B
| $14M | 0.01% | 181,668 +123,709 | +213% | +$9.51M |
|
45
Starbucks
SBUX
$100B
| $13.7M | 0.01% | 117,538 +91,670 | +354% | +$10.7M |
|
46
AstraZeneca
AZN
$248B
| $13.5M | 0.01% | +231,196 | New | +$13.5M |
|
|
WBA
47
DELISTED
Walgreens Boots Alliance
WBA
| $13.3M | 0.01% | 255,353 +92,093 | +56% | +$4.8M |
|
48
Upstart Holdings
UPST
$7.05B
| $13.1M | 0.01% | 86,851 +5,889 | +7% | +$891K |
|
49
General Motors
GM
$55.8B
| $13M | 0.01% | 221,760 +185,164 | +506% | +$10.9M |
|
50
Intuit
INTU
$186B
| $12.8M | 0.01% | 19,946 -4,311 | -18% | -$2.77M |
|