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 |
Apple
AAPL
|
$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
$59.4M |
| 5 |
Intel
INTC
|
$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 2 |
Direxion Daily FTSE China Bull 3X Shares
YINN
|
$50.4M |
| 3 |
iShares Silver Trust
SLV
|
$45.9M |
| 4 |
Ford
F
|
$32.5M |
| 5 |
Exxon Mobil
XOM
|
$20.4M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
1
Apple
AAPL
$3.45T
| $409M | 0.43% | 2,991,485 +1,890,474 | +172% | +$258M |
|
|
2
Alphabet (Google) Class A
GOOGL
$2.57T
| $82.8M | 0.09% | 37,999 +30,840 | +431% | +$67.2M |
|
|
3
Vanguard S&P 500 ETF
VOO
$726B
| $81.1M | 0.09% | 233,760 +218,346 | +1,417% | +$75.7M |
|
4
iShares 20+ Year Treasury Bond ETF
TLT
$47.8B
| $70.4M | 0.07% | 612,846 -40,075 | -6% | -$4.6M |
|
5
Invesco QQQ Trust
QQQ
$364B
| $69.9M | 0.07% | 249,524 +155,328 | +165% | +$43.5M |
|
6
JPMorgan Chase
JPM
$829B
| $67.7M | 0.07% | 600,999 +363,295 | +153% | +$40.9M |
|
|
7
Alphabet (Google) Class C
GOOG
$2.58T
| $59.4M | 0.06% | +27,177 | New | +$59.4M |
|
8
TSMC
TSM
$1.2T
| $52.5M | 0.06% | 641,960 +315,477 | +97% | +$25.8M |
|
9
Meta Platforms (Facebook)
META
$1.86T
| $48.2M | 0.05% | 298,879 +166,678 | +126% | +$26.9M |
|
|
10
Intel
INTC
$107B
| $46.2M | 0.05% | 1,234,059 +1,223,659 | +11,766% | +$45.8M |
|
11
iShares China Large-Cap ETF
FXI
$6.65B
| $44.6M | 0.05% | +1,313,853 | New | +$44.6M |
|
12
Tesla
TSLA
$1.08T
| $37.5M | 0.04% | +55,760 | New | +$37.5M |
|
13
PayPal
PYPL
$67.1B
| $36.6M | 0.04% | 524,532 +373,373 | +247% | +$26.1M |
|
14
iShares Core S&P 500 ETF
IVV
$662B
| $34.3M | 0.04% | 90,501 +65,904 | +268% | +$25M |
|
15
Visa
V
$683B
| $33.8M | 0.04% | +171,510 | New | +$33.8M |
|
16
Amazon
AMZN
$2.44T
| $30.6M | 0.03% | 288,007 +283,970 | +7,034% | +$30.2M |
|
17
Advanced Micro Devices
AMD
$264B
| $28.1M | 0.03% | 367,833 +33,305 | +10% | +$2.55M |
|
18
Alibaba
BABA
$322B
| $25.2M | 0.03% | 221,307 +123,259 | +126% | +$14M |
|
19
Morgan Stanley
MS
$240B
| $24.9M | 0.03% | 327,504 +236,567 | +260% | +$18M |
|
20
ProShares UltraPro QQQ
TQQQ
$26B
| $22.6M | 0.02% | 943,646 +330,478 | +54% | +$7.93M |
|
21
Chevron
CVX
$324B
| $22M | 0.02% | +152,222 | New | +$22M |
|
|
PARA
22
DELISTED
Paramount Global Class B
PARA
| $21.9M | 0.02% | 888,135 +693,441 | +356% | +$17.1M |
|
23
SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$1.9B
| $21.9M | 0.02% | +183,093 | New | +$21.9M |
|
24
Financial Select Sector SPDR Fund
XLF
$54.1B
| $20.7M | 0.02% | +656,918 | New | +$20.7M |
|
25
NVIDIA
NVDA
$4.24T
| $20.3M | 0.02% | 133,766 +12,591 | +10% | +$1.91M |
|