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 |
Boeing
BA
|
$49.5M |
| 2 |
Pinduoduo
PDD
|
$45.3M |
| 3 |
Microsoft
MSFT
|
$42.5M |
| 4 |
Apple
AAPL
|
$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
$95.4M |
| 2 |
Citigroup
C
|
$57.9M |
| 3 |
Pfizer
PFE
|
$55.9M |
| 4 |
TSMC
TSM
|
$40.4M |
| 5 |
Starbucks
SBUX
|
$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1
NVIDIA
NVDA
$4.24T
| $167M | 0.1% | 1,371,414 +203,634 | +17% | +$24.7M |
|
|
2
Pinduoduo
PDD
$171B
| $95.7M | 0.06% | 710,095 +336,010 | +90% | +$45.3M |
|
3
Alibaba
BABA
$322B
| $91.2M | 0.05% | 859,211 +59,965 | +8% | +$6.36M |
|
|
4
Boeing
BA
$177B
| $49.5M | 0.03% | +325,328 | New | +$49.5M |
|
5
KraneShares CSI China Internet ETF
KWEB
$8.49B
| $47.9M | 0.03% | 1,408,501 +427,383 | +44% | +$14.5M |
|
|
6
Microsoft
MSFT
$3.77T
| $42.5M | 0.02% | +98,740 | New | +$42.5M |
|
7
Advanced Micro Devices
AMD
$264B
| $39.2M | 0.02% | 238,757 +132,734 | +125% | +$21.8M |
|
8
Arm
ARM
$147B
| $38.3M | 0.02% | 267,749 +122,552 | +84% | +$17.5M |
|
9
Intel
INTC
$107B
| $36.6M | 0.02% | 1,558,236 -1,241,514 | -44% | -$29.1M |
|
10
Booking.com
BKNG
$181B
| $35.3M | 0.02% | 8,376 +4,738 | +130% | +$20M |
|
11
CVS Health
CVS
$92.8B
| $33.8M | 0.02% | 538,186 +206,064 | +62% | +$13M |
|
|
12
Apple
AAPL
$3.45T
| $33.3M | 0.02% | +143,113 | New | +$33.3M |
|
13
Energy Select Sector SPDR Fund
XLE
$27.6B
| $31.2M | 0.02% | 354,871 +263,282 | +287% | +$23.1M |
|
|
14
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$11.2B
| $28.1M | 0.02% | 764,731 +691,876 | +950% | +$25.4M |
|
|
B
15
Barrick Mining Corporation
B
$45.4B
| $26M | 0.02% | 1,306,715 -1,321,734 | -50% | -$26.3M |
|
16
iShares Russell 2000 ETF
IWM
$67B
| $25.1M | 0.01% | +113,827 | New | +$25.1M |
|
17
Robinhood
HOOD
$92.4B
| $23.5M | 0.01% | 1,002,580 -27,274 | -3% | -$639K |
|
18
Baidu
BIDU
$32.8B
| $21.6M | 0.01% | 204,790 -170,513 | -45% | -$18M |
|
19
Freeport-McMoran
FCX
$63.7B
| $21.2M | 0.01% | 425,197 +98,366 | +30% | +$4.91M |
|
20
Occidental Petroleum
OXY
$46.9B
| $21M | 0.01% | +407,778 | New | +$21M |
|
21
Lamb Weston
LW
$8.02B
| $20.1M | 0.01% | 311,122 +207,494 | +200% | +$13.4M |
|
|
22
TSMC
TSM
$1.2T
| $20M | 0.01% | 115,312 -232,839 | -67% | -$40.4M |
|
23
Direxion Daily Financial Bull 3x Shares
FAS
$2.74B
| $20M | 0.01% | 153,903 +22,513 | +17% | +$2.92M |
|
24
Constellation Energy
CEG
$96.2B
| $19.1M | 0.01% | 73,453 +36,327 | +98% | +$9.45M |
|
25
VanEck Gold Miners ETF
GDX
$19B
| $18.4M | 0.01% | +463,105 | New | +$18.4M |
|