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
|
$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 4 |
iShares Silver Trust
SLV
|
$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
$42.8M |
| 3 |
Verizon
VZ
|
$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.23% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
1
Apple
AAPL
$3.45T
| $192M | 0.18% | 1,101,011 +1,063,111 | +2,805% | +$186M |
|
|
2
iShares 20+ Year Treasury Bond ETF
TLT
$47.8B
| $86.2M | 0.08% | +652,921 | New | +$86.2M |
|
|
3
SPDR S&P 500 ETF Trust
SPY
$658B
| $56.8M | 0.05% | +125,714 | New | +$56.8M |
|
|
4
iShares Silver Trust
SLV
$19.6B
| $45.9M | 0.04% | 2,006,517 +1,875,832 | +1,435% | +$42.9M |
|
|
5
Advanced Micro Devices
AMD
$264B
| $36.6M | 0.03% | 334,528 +333,528 | +33,353% | +$36.5M |
|
6
Palantir
PLTR
$372B
| $36.3M | 0.03% | 2,643,309 +1,542,706 | +140% | +$21.2M |
|
7
ProShares UltraPro QQQ
TQQQ
$26B
| $35.7M | 0.03% | +613,168 | New | +$35.7M |
|
8
Invesco QQQ Trust
QQQ
$364B
| $34.1M | 0.03% | 94,196 +82,184 | +684% | +$29.8M |
|
9
TSMC
TSM
$1.2T
| $34M | 0.03% | 326,483 -49,984 | -13% | -$5.21M |
|
10
NVIDIA
NVDA
$4.24T
| $33.1M | 0.03% | 121,175 +99,913 | +470% | +$27.3M |
|
11
Ford
F
$46.8B
| $32.5M | 0.03% | 1,923,327 +555,353 | +41% | +$9.39M |
|
12
JPMorgan Chase
JPM
$829B
| $32.4M | 0.03% | +237,704 | New | +$32.4M |
|
13
Meta Platforms (Facebook)
META
$1.86T
| $29.4M | 0.03% | 132,201 +131,871 | +39,961% | +$29.3M |
|
14
Shopify
SHOP
$184B
| $28M | 0.03% | 41,487 +9,728 | +31% | +$6.58M |
|
|
B
15
Barrick Mining Corporation
B
$45.4B
| $26M | 0.02% | 1,061,207 +42,741 | +4% | +$1.05M |
|
16
NIO
NIO
$14.3B
| $24.4M | 0.02% | 1,159,461 -76,387 | -6% | -$1.61M |
|
17
United Airlines
UAL
$34B
| $24M | 0.02% | 518,610 +490,917 | +1,773% | +$22.8M |
|
18
KraneShares CSI China Internet ETF
KWEB
$8.49B
| $22.8M | 0.02% | 798,597 +17,714 | +2% | +$505K |
|
19
Norwegian Cruise Line
NCLH
$11.2B
| $22.8M | 0.02% | 1,040,342 +272,864 | +36% | +$5.97M |
|
20
Exxon Mobil
XOM
$487B
| $20.4M | 0.02% | 247,549 +184,559 | +293% | +$15.2M |
|
21
iShares 7-10 Year Treasury Bond ETF
IEF
$35.7B
| $20.3M | 0.02% | 188,728 +181,681 | +2,578% | +$19.5M |
|
|
ATVI
22
DELISTED
Activision Blizzard Inc.
ATVI
| $20.2M | 0.02% | 251,924 +117,131 | +87% | +$9.38M |
|
23
Alphabet (Google) Class A
GOOGL
$2.57T
| $19.9M | 0.02% | +7,159 | New | +$19.9M |
|
24
Sea Limited
SE
$110B
| $19.8M | 0.02% | 164,947 +85,711 | +108% | +$10.3M |
|
25
Caterpillar
CAT
$196B
| $19.2M | 0.02% | +86,290 | New | +$19.2M |
|