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 | |
|---|---|---|---|---|---|---|
26
Verizon
VZ
$186B
| $20.3M | 0.01% | +507,587 | New | +$20.3M |
|
27
Direxion Daily Financial Bull 3x Shares
FAS
$2.74B
| $20.2M | 0.01% | 133,599 -20,304 | -13% | -$3.07M |
|
28
Wells Fargo
WFC
$263B
| $19.8M | 0.01% | +282,468 | New | +$19.8M |
|
29
Coinbase
COIN
$78.2B
| $19.2M | 0.01% | 77,224 +48,158 | +166% | +$12M |
|
30
Bristol-Myers Squibb
BMY
$96B
| $19M | 0.01% | 336,628 -14,458 | -4% | -$818K |
|
31
Warner Bros
WBD
$28.8B
| $18.4M | 0.01% | 1,741,939 +247,828 | +17% | +$2.62M |
|
32
Bilibili
BILI
$9.6B
| $18.1M | 0.01% | 999,949 +455,712 | +84% | +$8.25M |
|
33
Booking.com
BKNG
$181B
| $17.9M | 0.01% | 3,599 -4,777 | -57% | -$23.7M |
|
34
Alphabet (Google) Class C
GOOG
$2.58T
| $17.2M | 0.01% | 90,178 -9,286 | -9% | -$1.77M |
|
35
Johnson & Johnson
JNJ
$427B
| $17.1M | 0.01% | 118,269 +86,802 | +276% | +$12.6M |
|
36
ProShares Short QQQ
PSQ
$513M
| $17M | 0.01% | 455,468 +121,932 | +37% | +$4.56M |
|
37
Devon Energy
DVN
$22.9B
| $16.5M | 0.01% | +503,840 | New | +$16.5M |
|
38
Unity
U
$16.7B
| $15.6M | 0.01% | 695,344 -11,007 | -2% | -$247K |
|
39
UnitedHealth
UNH
$281B
| $15.2M | 0.01% | +30,088 | New | +$15.2M |
|
40
Hershey
HSY
$37.3B
| $15.2M | 0.01% | 89,718 +82,792 | +1,195% | +$14M |
|
41
Super Micro Computer
SMCI
$24.7B
| $15M | 0.01% | +491,603 | New | +$15M |
|
42
Berkshire Hathaway Class B
BRK.B
$1.09T
| $15M | 0.01% | +33,016 | New | +$15M |
|
43
Adobe
ADBE
$151B
| $14.7M | 0.01% | 32,959 +26,143 | +384% | +$11.6M |
|
44
Celsius Holdings
CELH
$16.2B
| $14.1M | 0.01% | 537,094 +226,902 | +73% | +$5.98M |
|
45
Danaher
DHR
$147B
| $14.1M | 0.01% | +61,464 | New | +$14.1M |
|
46
SPDR Dow Jones Industrial Average ETF Trust
DIA
$39.9B
| $13.5M | 0.01% | +31,837 | New | +$13.5M |
|
47
Constellation Energy
CEG
$96.2B
| $13.4M | 0.01% | 59,998 -13,455 | -18% | -$3.01M |
|
48
Fidelity Wise Origin Bitcoin Fund
FBTC
$14.3B
| $13.4M | 0.01% | +163,744 | New | +$13.4M |
|
49
SPDR S&P 500 ETF Trust
SPY
$658B
| $13.3M | 0.01% | +22,614 | New | +$13.3M |
|
50
Twilio
TWLO
$16.2B
| $13.1M | 0.01% | 121,548 -78,530 | -39% | -$8.49M |
|