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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
$84.4M |
| 3 |
NVIDIA
NVDA
|
$76.9M |
| 4 |
TSMC
TSM
|
$74.9M |
| 5 |
Amazon
AMZN
|
$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$73.7M |
| 3 |
Alibaba
BABA
|
$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 |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
101
Whirlpool
WHR
$5B
| $4.99M | ﹤0.01% |
55,312
+15,136
| +38% | +$1.36M |
|
102
Restaurant Brands International
QSR
$20.5B
| $4.98M | ﹤0.01% |
74,760
+7,513
| +11% | +$501K |
|
103
PENN Entertainment
PENN
$2.86B
| $4.9M | ﹤0.01% |
300,558
-16,728
| -5% | -$273K |
|
104
Fox Class A
FOXA
$26.8B
| $4.89M | ﹤0.01% |
86,365
+65,004
| +304% | +$3.68M |
|
105
Range Resources
RRC
$8.18B
| $4.86M | ﹤0.01% |
121,615
+66,616
| +121% | +$2.66M |
|
106
Tyson Foods
TSN
$20B
| $4.84M | ﹤0.01% |
75,819
+6,409
| +9% | +$409K |
|
107
Global Payments
GPN
$21B
| $4.74M | ﹤0.01% |
48,430
-22,961
| -32% | -$2.25M |
|
108
Wynn Resorts
WYNN
$13.1B
| $4.73M | ﹤0.01% |
56,630
+20,183
| +55% | +$1.69M |
|
109
T-Mobile US
TMUS
$284B
| $4.66M | ﹤0.01% |
17,470
-23,235
| -57% | -$6.2M |
|
110
Autodesk
ADSK
$67.6B
| $4.55M | ﹤0.01% |
+17,371
| New | +$4.55M |
|
111
Nu Holdings
NU
$72B
| $4.5M | ﹤0.01% |
439,923
+394,149
| +861% | +$4.04M |
|
112
Snowflake
SNOW
$76.5B
| $4.46M | ﹤0.01% |
+30,512
| New | +$4.46M |
|
113
Cleveland-Cliffs
CLF
$5.18B
| $4.29M | ﹤0.01% |
521,623
+302,677
| +138% | +$2.49M |
|
114
Vanguard FTSE Developed Markets ETF
VEA
$169B
| $4.27M | ﹤0.01% |
+83,955
| New | +$4.27M |
|
115
Kenvue
KVUE
$39.2B
| $4.23M | ﹤0.01% |
+176,588
| New | +$4.23M |
|
116
Sable Offshore Corp
SOC
$2.26B
| $4.2M | ﹤0.01% |
165,559
+61,891
| +60% | +$1.57M |
|
117
Robinhood
HOOD
$89.6B
| $4.14M | ﹤0.01% |
+99,373
| New | +$4.14M |
|
118
YPF
YPF
$11.6B
| $4.11M | ﹤0.01% |
+117,324
| New | +$4.11M |
|
119
Global X Uranium ETF
URA
$4.23B
| $4.1M | ﹤0.01% |
179,071
+89,562
| +100% | +$2.05M |
|
120
NRG Energy
NRG
$28.4B
| $4.05M | ﹤0.01% |
42,380
+4,229
| +11% | +$404K |
|
121
Health Care Select Sector SPDR Fund
XLV
$33.8B
| $4.01M | ﹤0.01% |
+27,450
| New | +$4.01M |
|
122
Archer Aviation
ACHR
$5.41B
| $3.93M | ﹤0.01% |
552,241
+470,733
| +578% | +$3.35M |
|
123
Fiserv
FI
$74.3B
| $3.9M | ﹤0.01% |
17,673
-26,736
| -60% | -$5.9M |
|
124
Consumer Discretionary Select Sector SPDR Fund
XLY
$23.2B
| $3.9M | ﹤0.01% |
+19,730
| New | +$3.9M |
|
125
Advance Auto Parts
AAP
$3.54B
| $3.89M | ﹤0.01% |
99,151
+27,360
| +38% | +$1.07M |
|