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
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
1
Apple
AAPL
$3.45T
| $622M | 0.35% | 2,484,516 +2,341,403 | +1,636% | +$586M |
|
|
2
Strategy Inc Common Stock Class A
MSTR
$94.8B
| $82.5M | 0.05% | +285,022 | New | +$82.5M |
|
|
3
Intel
INTC
$107B
| $71.6M | 0.04% | 3,570,940 +2,012,704 | +129% | +$40.4M |
|
|
4
NVIDIA
NVDA
$4.24T
| $54.2M | 0.03% | 403,972 -967,442 | -71% | -$130M |
|
5
Alibaba
BABA
$322B
| $49M | 0.03% | 578,106 -281,105 | -33% | -$23.8M |
|
6
Citigroup
C
$178B
| $48.4M | 0.03% | 687,484 +398,558 | +138% | +$28.1M |
|
7
Advanced Micro Devices
AMD
$264B
| $48.1M | 0.03% | 398,387 +159,630 | +67% | +$19.3M |
|
8
Nike
NKE
$114B
| $44.7M | 0.03% | 590,924 +391,360 | +196% | +$29.6M |
|
9
Pfizer
PFE
$141B
| $41.6M | 0.02% | 1,566,653 +1,303,687 | +496% | +$34.6M |
|
|
10
Invesco QQQ Trust
QQQ
$364B
| $39.4M | 0.02% | +77,023 | New | +$39.4M |
|
|
11
Uber
UBER
$196B
| $37M | 0.02% | 612,858 +601,521 | +5,306% | +$36.3M |
|
12
Starbucks
SBUX
$100B
| $32.8M | 0.02% | 359,550 +327,635 | +1,027% | +$29.9M |
|
|
B
13
Barrick Mining Corporation
B
$45.4B
| $28.2M | 0.02% | 1,817,987 +511,272 | +39% | +$7.92M |
|
14
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$11.2B
| $27.3M | 0.02% | 1,000,338 +235,607 | +31% | +$6.43M |
|
15
SPDR S&P Biotech ETF
XBI
$5.07B
| $27.3M | 0.02% | +302,694 | New | +$27.3M |
|
16
Newmont
NEM
$81.7B
| $25.3M | 0.01% | 679,212 +488,435 | +256% | +$18.2M |
|
17
Humana
HUM
$36.5B
| $25.1M | 0.01% | 98,895 +46,077 | +87% | +$11.7M |
|
|
MSTX
18
Tidal Trust II Defiance Daily Target 2x Long MSTR ETF
MSTX
$758M
| $24.5M | 0.01% | 697,346 +678,897 | +3,680% | +$23.9M |
|
19
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
$17.8B
| $24.1M | 0.01% | +306,276 | New | +$24.1M |
|
20
Cigna
CI
$80.3B
| $24M | 0.01% | 87,055 +82,528 | +1,823% | +$22.8M |
|
21
Energy Transfer Partners
ET
$60.8B
| $23.1M | 0.01% | 1,178,669 +617,987 | +110% | +$12.1M |
|
22
Arm
ARM
$147B
| $22.9M | 0.01% | 185,802 -81,947 | -31% | -$10.1M |
|
23
Baidu
BIDU
$32.8B
| $22.2M | 0.01% | 263,179 +58,389 | +29% | +$4.92M |
|
24
Fortinet
FTNT
$60.4B
| $21M | 0.01% | 222,215 +109,360 | +97% | +$10.3M |
|
25
CVS Health
CVS
$92.8B
| $20.5M | 0.01% | 457,466 -80,720 | -15% | -$3.62M |
|