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 |
Energy Select Sector SPDR Fund
XLE
|
$93.9M |
| 2 |
Pfizer
PFE
|
$89.5M |
| 3 |
Boeing
BA
|
$66.7M |
| 4 |
Intel
INTC
|
$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
$109M |
| 3 |
Alibaba
BABA
|
$81.8M |
| 4 |
Walt Disney
DIS
|
$80.2M |
| 5 |
Citigroup
C
|
$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
1
Pfizer
PFE
$141B
| $128M | 0.07% | 4,605,985 +3,225,864 | +234% | +$89.5M |
|
|
2
Energy Select Sector SPDR Fund
XLE
$27.6B
| $104M | 0.06% | 1,105,966 +994,768 | +895% | +$93.9M |
|
|
3
Boeing
BA
$177B
| $66.7M | 0.04% | +345,653 | New | +$66.7M |
|
|
4
Intel
INTC
$107B
| $60.2M | 0.03% | +1,362,068 | New | +$60.2M |
|
5
TSMC
TSM
$1.2T
| $57.7M | 0.03% | 424,287 +227,661 | +116% | +$31M |
|
6
KraneShares CSI China Internet ETF
KWEB
$8.49B
| $54.4M | 0.03% | 2,073,125 +191,650 | +10% | +$5.03M |
|
|
7
Meta Platforms (Facebook)
META
$1.86T
| $52.5M | 0.03% | +108,215 | New | +$52.5M |
|
|
8
Alibaba
BABA
$322B
| $45.6M | 0.03% | 630,426 -1,129,842 | -64% | -$81.8M |
|
9
JD.com
JD
$44.1B
| $45.4M | 0.03% | 1,656,014 -418,232 | -20% | -$11.5M |
|
10
PayPal
PYPL
$67.1B
| $44.4M | 0.03% | 663,227 +160,648 | +32% | +$10.8M |
|
11
Advanced Micro Devices
AMD
$264B
| $43.9M | 0.03% | +243,264 | New | +$43.9M |
|
12
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$11.2B
| $41.2M | 0.02% | +884,677 | New | +$41.2M |
|
13
Baidu
BIDU
$32.8B
| $41.1M | 0.02% | 390,036 +263,324 | +208% | +$27.7M |
|
|
14
Alphabet (Google) Class C
GOOG
$2.58T
| $37.8M | 0.02% | +248,304 | New | +$37.8M |
|
15
GE Aerospace
GE
$292B
| $36.9M | 0.02% | +210,176 | New | +$36.9M |
|
16
Starbucks
SBUX
$100B
| $35.5M | 0.02% | 388,024 +296,303 | +323% | +$27.1M |
|
17
Broadcom
AVGO
$1.4T
| $35M | 0.02% | 26,417 +4,699 | +22% | +$6.23M |
|
18
Micron Technology
MU
$133B
| $34.5M | 0.02% | 292,496 -84,212 | -22% | -$9.93M |
|
19
iShares Silver Trust
SLV
$19.6B
| $33.4M | 0.02% | +1,469,127 | New | +$33.4M |
|
20
Marathon Digital Holdings
MARA
$5.92B
| $33M | 0.02% | +1,460,702 | New | +$33M |
|
21
CrowdStrike
CRWD
$106B
| $31.8M | 0.02% | +99,293 | New | +$31.8M |
|
22
Cisco
CSCO
$274B
| $31.7M | 0.02% | 634,238 +567,896 | +856% | +$28.3M |
|
23
Newmont
NEM
$81.7B
| $30.6M | 0.02% | 853,808 +301,998 | +55% | +$10.8M |
|
24
ProShares Bitcoin Strategy ETF
BITO
$2.67B
| $29.3M | 0.02% | 906,491 +309,754 | +52% | +$10M |
|
25
Eli Lilly
LLY
$657B
| $28.1M | 0.02% | +36,141 | New | +$28.1M |
|