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 |
Amazon
AMZN
|
$107M |
| 2 |
SPDR Gold Trust
GLD
|
$65.8M |
| 3 |
NVIDIA
NVDA
|
$61.6M |
| 4 |
Apple
AAPL
|
$51.2M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$50.9M |
Top Sells
| 1 |
Qualcomm
QCOM
|
$25.2M |
| 2 |
Netflix
NFLX
|
$24.1M |
| 3 |
Walt Disney
DIS
|
$22.2M |
| 4 |
Snowflake
SNOW
|
$17.4M |
| 5 |
Advanced Micro Devices
AMD
|
$17.2M |
Sector Composition
| 1 | Technology | 20.43% |
| 2 | Consumer Discretionary | 15% |
| 3 | Healthcare | 10.19% |
| 4 | Financials | 8.16% |
| 5 | Communication Services | 6.81% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
101
Cameco
CCJ
$33.4B
| $5.48M | ﹤0.01% |
+138,214
| New | +$5.48M |
|
102
PENN Entertainment
PENN
$2.88B
| $5.46M | ﹤0.01% |
+237,719
| New | +$5.46M |
|
103
Bank of New York Mellon
BK
$74.5B
| $5.35M | ﹤0.01% |
125,418
+65,094
| +108% | +$2.78M |
|
104
Snap
SNAP
$12B
| $5.32M | ﹤0.01% |
596,803
-138,938
| -19% | -$1.24M |
|
105
QuantumScape
QS
$4.26B
| $5.31M | ﹤0.01% |
794,236
+458,120
| +136% | +$3.06M |
|
106
Valero Energy
VLO
$48.6B
| $5.27M | ﹤0.01% |
+37,156
| New | +$5.27M |
|
107
iShares Silver Trust
SLV
$19.9B
| $5.22M | ﹤0.01% |
+256,610
| New | +$5.22M |
|
108
Colgate-Palmolive
CL
$67.3B
| $5.21M | ﹤0.01% |
73,208
-58,157
| -44% | -$4.13M |
|
109
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$10.8B
| $5.07M | ﹤0.01% |
+268,477
| New | +$5.07M |
|
110
AB InBev
BUD
$115B
| $4.99M | ﹤0.01% |
+90,306
| New | +$4.99M |
|
111
MongoDB
MDB
$25.8B
| $4.9M | ﹤0.01% |
14,174
+14,024
| +9,349% | +$4.85M |
|
112
Immunovant
IMVT
$2.87B
| $4.81M | ﹤0.01% |
125,212
+104,706
| +511% | +$4.02M |
|
113
VF Corp
VFC
$5.77B
| $4.78M | ﹤0.01% |
270,376
+10,474
| +4% | +$185K |
|
114
Macy's
M
$4.49B
| $4.66M | ﹤0.01% |
+401,462
| New | +$4.66M |
|
115
Antero Resources
AR
$9.99B
| $4.61M | ﹤0.01% |
181,836
+123,530
| +212% | +$3.13M |
|
116
Paychex
PAYX
$49.2B
| $4.52M | ﹤0.01% |
39,204
+17,281
| +79% | +$1.99M |
|
117
Vodafone
VOD
$28.3B
| $4.52M | ﹤0.01% |
476,448
+236,040
| +98% | +$2.24M |
|
118
GSK
GSK
$79.3B
| $4.51M | ﹤0.01% |
124,463
-26,816
| -18% | -$972K |
|
119
Dell
DELL
$85B
| $4.45M | ﹤0.01% |
+64,522
| New | +$4.45M |
|
120
Masimo
MASI
$7.7B
| $4.44M | ﹤0.01% |
50,689
+46,724
| +1,178% | +$4.1M |
|
121
Riot Platforms
RIOT
$4.94B
| $4.36M | ﹤0.01% |
467,747
+457,347
| +4,398% | +$4.27M |
|
122
Las Vegas Sands
LVS
$37.6B
| $4.27M | ﹤0.01% |
+93,251
| New | +$4.27M |
|
|
SGI
123
Somnigroup International Inc.
SGI
$18B
| $4.18M | ﹤0.01% |
+96,524
| New | +$4.18M |
|
124
United Rentals
URI
$61.6B
| $4.07M | ﹤0.01% |
9,148
+8,947
| +4,451% | +$3.98M |
|
125
BWX Technologies
BWXT
$14.9B
| $4.02M | ﹤0.01% |
+53,678
| New | +$4.02M |
|