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 | +$278M | |
| 2 | +$84.4M | |
| 3 | +$76.9M | |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 | +$497M | |
| 2 | +$73.7M | |
| 3 | +$49M | |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
26
UnitedHealth
UNH
$296B
| $18.9M | 0.01% |
36,061
+5,973
|
|
||
27
Novo Nordisk
NVO
$209B
| $16.6M | 0.01% |
+239,010
|
|
||
28
Humana
HUM
$31B
| $16.3M | 0.01% |
61,672
-37,223
|
|
||
29
Wells Fargo
WFC
$275B
| $16.3M | 0.01% |
227,152
-55,316
|
|
||
30
Newmont
NEM
$88.2B
| $15.9M | 0.01% |
328,401
-350,811
|
|
||
31
Coinbase
COIN
$84.3B
| $15.1M | 0.01% |
87,558
+10,334
|
|
||
32
Broadcom
AVGO
$1.7T
| $14.5M | 0.01% |
+86,845
|
|
||
33
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$16.8B
| $14.1M | 0.01% |
882,724
-117,614
|
|
||
34
Microsoft
MSFT
$3.81T
| $13.8M | 0.01% |
36,777
+34,181
|
|
||
35
Booking.com
BKNG
$159B
| $13M | 0.01% |
2,827
-772
|
|
||
36
Direxion Daily Financial Bull 3x Shares
FAS
$2.42B
| $12.9M | 0.01% |
81,620
-51,979
|
|
||
37
SoFi Technologies
SOFI
$35.7B
| $12.5M | 0.01% |
1,074,410
+515,627
|
|
||
38
Ford
F
$51.7B
| $12.3M | 0.01% |
1,223,600
+367,517
|
|
||
39
Walt Disney
DIS
$201B
| $12.2M | 0.01% |
123,121
+46,086
|
|
||
40
DoorDash
DASH
$101B
| $12.1M | 0.01% |
+65,971
|
|
||
41
Alphabet (Google) Class C
GOOG
$3.43T
| $11.7M | 0.01% |
74,827
-15,351
|
|
||
42
Warner Bros
WBD
$56.5B
| $11.7M | 0.01% |
1,086,804
-655,135
|
|
||
43
Home Depot
HD
$377B
| $11.6M | 0.01% |
+31,546
|
|
||
44
Pinduoduo
PDD
$193B
| $11.5M | 0.01% |
+97,380
|
|
||
45
Bristol-Myers Squibb
BMY
$93.5B
| $11.5M | 0.01% |
188,899
-147,729
|
|
||
46
Blackstone
BX
$112B
| $11.5M | 0.01% |
+82,337
|
|
||
47
KE Holdings
BEKE
$18.9B
| $11.5M | 0.01% |
570,560
+479,153
|
|
||
48
Carvana
CVNA
$45.3B
| $11.3M | 0.01% |
53,855
+11,762
|
|
||
49
SLB Ltd
SLB
$54.1B
| $10.9M | 0.01% |
260,039
-2,053
|
|
||
50
Technology Select Sector SPDR Fund
XLK
$96.9B
| $10.5M | 0.01% |
+50,713
|
|