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 |
AMC Entertainment Holdings
AMC
|
$84.2M |
| 2 |
NVIDIA
NVDA
|
$35.3M |
| 3 |
AT&T
T
|
$28.5M |
| 4 |
Micron Technology
MU
|
$23.1M |
| 5 |
Baidu
BIDU
|
$22.7M |
Top Sells
| 1 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
$38.7M |
| 2 |
Palantir
PLTR
|
$29.3M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$26.2M |
| 4 |
PARA
Paramount Global Class B
PARA
|
$21.7M |
| 5 |
Exxon Mobil
XOM
|
$18M |
Sector Composition
| 1 | Technology | 17.69% |
| 2 | Consumer Discretionary | 14.79% |
| 3 | Communication Services | 10.15% |
| 4 | Healthcare | 9.69% |
| 5 | Financials | 9.42% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
26
XPeng
XPEV
$20B
| $14.2M | 0.01% | 318,661 -240,228 | -43% | -$10.7M |
|
27
Citigroup
C
$178B
| $14M | 0.01% | 198,036 -41,871 | -17% | -$2.96M |
|
28
Novavax
NVAX
$1.21B
| $14M | 0.01% | 65,867 +38,016 | +136% | +$8.07M |
|
29
Coinbase
COIN
$78.2B
| $13.8M | 0.01% | +54,603 | New | +$13.8M |
|
30
Procter & Gamble
PG
$368B
| $13.6M | 0.01% | +100,695 | New | +$13.6M |
|
31
S&P Global
SPGI
$167B
| $13.6M | 0.01% | 33,066 +28,326 | +598% | +$11.6M |
|
32
Alibaba
BABA
$322B
| $13.5M | 0.01% | 59,644 +17,159 | +40% | +$3.89M |
|
33
Tilray
TLRY
$1.52B
| $12.7M | 0.01% | 701,161 +700,931 | +304,753% | +$12.7M |
|
34
Delta Air Lines
DAL
$40.3B
| $12.7M | 0.01% | 292,461 +265,663 | +991% | +$11.5M |
|
|
SPLK
35
DELISTED
Splunk Inc
SPLK
| $12.4M | 0.01% | 85,999 +12,358 | +17% | +$1.79M |
|
36
Wynn Resorts
WYNN
$13.2B
| $12.3M | 0.01% | 100,753 +77,260 | +329% | +$9.45M |
|
37
Roblox
RBLX
$86.4B
| $12.3M | 0.01% | 136,642 +108,105 | +379% | +$9.73M |
|
38
Applied Materials
AMAT
$128B
| $12M | 0.01% | 84,182 +8,048 | +11% | +$1.15M |
|
39
Intuit
INTU
$186B
| $11.9M | 0.01% | 24,197 +17,575 | +265% | +$8.61M |
|
40
Rocket Companies
RKT
$37.4B
| $11.7M | 0.01% | 606,486 +325,936 | +116% | +$6.31M |
|
41
iShares Silver Trust
SLV
$19.6B
| $11.3M | 0.01% | 465,610 -374,322 | -45% | -$9.07M |
|
42
NIO
NIO
$14.3B
| $11M | 0.01% | 207,392 +195,221 | +1,604% | +$10.4M |
|
43
Boeing
BA
$177B
| $10.9M | 0.01% | 45,647 +1,588 | +4% | +$380K |
|
44
VanEck Oil Services ETF
OIH
$886M
| $10.9M | 0.01% | 49,910 +40,444 | +427% | +$8.85M |
|
45
Upstart Holdings
UPST
$7.05B
| $10.5M | 0.01% | 84,211 +77,298 | +1,118% | +$9.65M |
|
46
Utilities Select Sector SPDR Fund
XLU
$20.9B
| $9.89M | 0.01% | +156,451 | New | +$9.89M |
|
47
Verizon
VZ
$186B
| $9.77M | 0.01% | +174,313 | New | +$9.77M |
|
48
Amazon
AMZN
$2.44T
| $9.5M | 0.01% | 2,761 -1,339 | -33% | -$4.61M |
|
49
Generac Holdings
GNRC
$10.9B
| $9.37M | 0.01% | 22,571 +21,711 | +2,525% | +$9.01M |
|
50
Fastly
FSLY
$1.12B
| $9.19M | 0.01% | 154,216 +143,409 | +1,327% | +$8.55M |
|