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 |
NVIDIA
NVDA
|
$216M |
| 2 |
Apple
AAPL
|
$159M |
| 3 |
Broadcom
AVGO
|
$128M |
| 4 |
Booking.com
BKNG
|
$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$141M |
| 2 |
Amazon
AMZN
|
$53.1M |
| 3 |
TSMC
TSM
|
$45.7M |
| 4 |
Netflix
NFLX
|
$45.3M |
| 5 |
Pfizer
PFE
|
$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
26
Wells Fargo
WFC
$258B
| $21.3M | 0.01% |
265,915
+38,763
| +17% | +$3.11M |
|
27
Novo Nordisk
NVO
$252B
| $21.1M | 0.01% |
305,237
+66,227
| +28% | +$4.57M |
|
|
B
28
Barrick Mining Corporation
B
$46.3B
| $21M | 0.01% |
1,011,038
-224,616
| -18% | -$4.68M |
|
29
Iris Energy
IREN
$7.67B
| $20.1M | 0.01% |
1,382,126
+94,371
| +7% | +$1.37M |
|
30
Walmart
WMT
$793B
| $19.8M | 0.01% |
202,277
+143,462
| +244% | +$14M |
|
31
Oracle
ORCL
$628B
| $19.3M | 0.01% |
+88,074
| New | +$19.3M |
|
32
Energy Transfer Partners
ET
$60.3B
| $19.1M | 0.01% |
1,051,640
-4,128
| -0.4% | -$74.8K |
|
33
Chipotle Mexican Grill
CMG
$56B
| $18.8M | 0.01% |
+333,998
| New | +$18.8M |
|
34
iShares Bitcoin Trust
IBIT
$83.8B
| $17.7M | 0.01% |
289,568
-213,451
| -42% | -$13.1M |
|
35
Direxion Daily Financial Bull 3x Shares
FAS
$2.66B
| $17.6M | 0.01% |
104,672
+23,052
| +28% | +$3.89M |
|
36
Nu Holdings
NU
$72B
| $17.1M | 0.01% |
1,246,517
+806,594
| +183% | +$11.1M |
|
37
ASML
ASML
$290B
| $16.8M | 0.01% |
+21,017
| New | +$16.8M |
|
38
iShares MSCI Emerging Markets ETF
EEM
$19B
| $14.8M | 0.01% |
306,415
+142,501
| +87% | +$6.87M |
|
39
US Bancorp
USB
$75.5B
| $14.5M | 0.01% |
+319,512
| New | +$14.5M |
|
40
Industrial Select Sector SPDR Fund
XLI
$23B
| $14.4M | 0.01% |
+97,333
| New | +$14.4M |
|
41
iShares Gold Trust
IAU
$52.2B
| $13.1M | 0.01% |
210,513
+52,081
| +33% | +$3.25M |
|
42
SoundHound AI
SOUN
$5.19B
| $13M | 0.01% |
1,215,270
+873,282
| +255% | +$9.37M |
|
43
ProShares Short QQQ
PSQ
$513M
| $13M | 0.01% |
385,908
-109,412
| -22% | -$3.68M |
|
44
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$10.7B
| $13M | 0.01% |
515,960
-366,764
| -42% | -$9.21M |
|
45
Boston Scientific
BSX
$159B
| $12.7M | 0.01% |
118,658
+36,984
| +45% | +$3.97M |
|
46
Coinbase
COIN
$77.7B
| $12.7M | 0.01% |
36,126
-51,432
| -59% | -$18M |
|
47
iShares US Home Construction ETF
ITB
$3.18B
| $12.6M | 0.01% |
+134,719
| New | +$12.6M |
|
48
PepsiCo
PEP
$203B
| $12.5M | 0.01% |
+94,468
| New | +$12.5M |
|
49
Rio Tinto
RIO
$102B
| $12.1M | 0.01% |
207,861
+56,675
| +37% | +$3.31M |
|
50
Global X Uranium ETF
URA
$4.23B
| $11.8M | 0.01% |
304,577
+125,506
| +70% | +$4.87M |
|