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 | +$237M | |
| 2 | +$103M | |
| 3 | +$93.9M | |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$80.5M |
| 5 |
Pinduoduo
PDD
|
+$61.3M |
Top Sells
| 1 | +$129M | |
| 2 | +$108M | |
| 3 | +$89.1M | |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$79.3M |
| 5 |
Micron Technology
MU
|
+$64.3M |
Sector Composition
| 1 | Technology | 34.04% |
| 2 | Consumer Discretionary | 13.08% |
| 3 | Healthcare | 10.63% |
| 4 | Financials | 7.02% |
| 5 | Industrials | 3.96% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
76
Futu Holdings
FUTU
$25.9B
| $7.63M | ﹤0.01% |
43,852
+13,179
|
|
||
77
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$4.83B
| $7.45M | ﹤0.01% |
185,514
+18,698
|
|
||
78
EchoStar
SATS
$20B
| $7.2M | ﹤0.01% |
94,286
+72,495
|
|
||
79
ARK 21Shares Bitcoin ETF
ARKB
$1.62B
| $7.12M | ﹤0.01% |
187,268
-13,696
|
|
||
80
Energy Fuels
UUUU
$3.75B
| $6.88M | ﹤0.01% |
447,925
-29,651
|
|
||
81
Crocs
CROX
$3.87B
| $6.83M | ﹤0.01% |
81,696
+73,478
|
|
||
82
Rigetti Computing
RGTI
$9.34B
| $6.78M | ﹤0.01% |
+227,434
|
|
||
83
Li Auto
LI
$20.3B
| $6.75M | ﹤0.01% |
266,263
+249,840
|
|
||
84
Oracle
ORCL
$647B
| $6.6M | ﹤0.01% |
23,459
-64,615
|
|
||
85
DoorDash
DASH
$84.7B
| $6.59M | ﹤0.01% |
24,228
+16,651
|
|
||
86
Ionis Pharmaceuticals
IONS
$11.8B
| $6.55M | ﹤0.01% |
100,206
+60,568
|
|
||
|
TIGR
87
UP Fintech Holding
TIGR
$1.84B
| $6.39M | ﹤0.01% |
599,122
+94,953
|
|
||
88
WIX.com
WIX
$7.38B
| $6.39M | ﹤0.01% |
35,985
+28,954
|
|
||
89
State Street SPDR S&P Homebuilders ETF
XHB
$1.78B
| $6.25M | ﹤0.01% |
56,422
+21,652
|
|
||
90
iShares US Home Construction ETF
ITB
$3.02B
| $6.08M | ﹤0.01% |
56,713
-78,006
|
|
||
91
PepsiCo
PEP
$197B
| $6.08M | ﹤0.01% |
43,304
-51,164
|
|
||
92
Ford
F
$53.6B
| $6.03M | ﹤0.01% |
504,282
+128,900
|
|
||
93
Novartis
NVS
$254B
| $6M | ﹤0.01% |
46,811
+23,108
|
|
||
94
Alcoa
AA
$10.4B
| $5.83M | ﹤0.01% |
177,349
+141,141
|
|
||
95
Thermo Fisher Scientific
TMO
$221B
| $5.76M | ﹤0.01% |
11,871
+10,002
|
|
||
|
ETHE
96
Grayscale Ethereum Trust ETF
ETHE
$3.84B
| $5.75M | ﹤0.01% |
167,765
+127,292
|
|
||
97
Energy Transfer Partners
ET
$56.9B
| $5.66M | ﹤0.01% |
329,885
-721,755
|
|
||
98
BorgWarner
BWA
$9.84B
| $5.62M | ﹤0.01% |
127,853
+69,561
|
|
||
99
Starbucks
SBUX
$99.2B
| $5.61M | ﹤0.01% |
+66,264
|
|
||
100
Applied Digital
APLD
$7.39B
| $5.57M | ﹤0.01% |
242,800
-101,661
|
|