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 | |
|---|---|---|---|---|---|---|
|
1
AMC Entertainment Holdings
AMC
$1.44B
| $85.3M | 0.08% | 1,505,796 +1,485,086 | +7,171% | +$84.2M |
|
2
Carnival Corp
CCL
$43.2B
| $38.1M | 0.04% | 1,444,431 +278,173 | +24% | +$7.33M |
|
|
3
NVIDIA
NVDA
$4.24T
| $37M | 0.04% | 46,182 +44,122 | +2,142% | +$35.3M |
|
|
4
Palantir
PLTR
$372B
| $33.2M | 0.03% | 1,257,642 -1,110,827 | -47% | -$29.3M |
|
|
5
Baidu
BIDU
$32.8B
| $29.4M | 0.03% | 143,944 +111,547 | +344% | +$22.7M |
|
6
TSMC
TSM
$1.2T
| $29.1M | 0.03% | 242,379 +163,432 | +207% | +$19.6M |
|
|
7
AT&T
T
$209B
| $28.5M | 0.03% | +990,317 | New | +$28.5M |
|
8
Intuitive Surgical
ISRG
$170B
| $26.9M | 0.03% | 29,219 +21,067 | +258% | +$19.4M |
|
|
9
Micron Technology
MU
$133B
| $25.4M | 0.02% | 299,098 +271,788 | +995% | +$23.1M |
|
10
Direxion Daily S&P 500 Bull 3x Shares
SPXL
$5.45B
| $24.2M | 0.02% | 226,745 +34,395 | +18% | +$3.67M |
|
11
Technology Select Sector SPDR Fund
XLK
$83.9B
| $22.5M | 0.02% | +152,411 | New | +$22.5M |
|
12
Intel
INTC
$107B
| $21.8M | 0.02% | 388,672 +272,540 | +235% | +$15.3M |
|
|
LOGC
13
DELISTED
ContextLogic
LOGC
| $20.7M | 0.02% | 1,572,459 +1,516,025 | +2,686% | +$20M |
|
14
Freeport-McMoran
FCX
$63.7B
| $20M | 0.02% | 538,234 +285,158 | +113% | +$10.6M |
|
15
Futu Holdings
FUTU
$25.8B
| $19.5M | 0.02% | 108,607 +38,082 | +54% | +$6.82M |
|
16
VanEck Semiconductor ETF
SMH
$27B
| $19.1M | 0.02% | 72,776 +72,697 | +92,022% | +$19.1M |
|
17
Strategy Inc Common Stock Class A
MSTR
$94.8B
| $18.6M | 0.02% | 27,980 -7,736 | -22% | -$5.14M |
|
|
X
18
DELISTED
US Steel
X
| $18.5M | 0.02% | 769,341 +323,353 | +73% | +$7.76M |
|
19
Plug Power
PLUG
$1.81B
| $17.6M | 0.02% | 514,742 +198,612 | +63% | +$6.79M |
|
20
Snap
SNAP
$12.1B
| $16.9M | 0.02% | 247,570 +243,267 | +5,653% | +$16.6M |
|
21
American Airlines Group
AAL
$8.82B
| $16.4M | 0.02% | 774,048 +143,168 | +23% | +$3.04M |
|
22
SPDR Gold Trust
GLD
$107B
| $16.4M | 0.02% | 99,064 +78,759 | +388% | +$13M |
|
23
Beyond Meat
BYND
$192M
| $15.9M | 0.02% | 100,708 +58,058 | +136% | +$9.14M |
|
24
Mastercard
MA
$538B
| $15.2M | 0.01% | 41,527 -29,867 | -42% | -$10.9M |
|
25
Trade Desk
TTD
$26.7B
| $15.1M | 0.01% | 194,798 +179,359 | +1,162% | +$13.9M |
|