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 |
Invesco QQQ Trust
QQQ
|
$41.7M |
| 2 |
Mastercard
MA
|
$33.6M |
| 3 |
Alibaba
BABA
|
$33.4M |
| 4 |
Apple
AAPL
|
$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
$60M |
| 2 |
TSMC
TSM
|
$49.5M |
| 3 |
iShares Silver Trust
SLV
|
$26M |
| 4 |
Amazon
AMZN
|
$25.2M |
| 5 |
Boeing
BA
|
$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
151
Five Below
FIVE
$8.43B
| $2.78M | ﹤0.01% |
+15,876
| New | +$2.78M |
|
152
Lemonade
LMND
$3.75B
| $2.78M | ﹤0.01% |
22,656
+19,859
| +710% | +$2.43M |
|
153
ConocoPhillips
COP
$120B
| $2.76M | ﹤0.01% |
68,927
+2,354
| +4% | +$94.1K |
|
154
Hyatt Hotels
H
$13.9B
| $2.75M | ﹤0.01% |
37,066
+23,440
| +172% | +$1.74M |
|
155
Amplify Cybersecurity ETF
HACK
$2.25B
| $2.75M | ﹤0.01% |
47,784
+45,666
| +2,156% | +$2.63M |
|
156
UWM Holdings
UWMC
$1.29B
| $2.75M | ﹤0.01% |
+209,086
| New | +$2.75M |
|
157
Pultegroup
PHM
$27.2B
| $2.74M | ﹤0.01% |
+63,435
| New | +$2.74M |
|
158
Mercado Libre
MELI
$123B
| $2.72M | ﹤0.01% |
1,624
-4,518
| -74% | -$7.57M |
|
159
fuboTV
FUBO
$1.29B
| $2.71M | ﹤0.01% |
+96,693
| New | +$2.71M |
|
160
Skillsoft
SKIL
$131M
| $2.7M | ﹤0.01% |
+13,026
| New | +$2.7M |
|
161
Danaher
DHR
$143B
| $2.68M | ﹤0.01% |
13,585
+12,042
| +780% | +$2.37M |
|
162
Caesars Entertainment
CZR
$5.36B
| $2.67M | ﹤0.01% |
+35,944
| New | +$2.67M |
|
163
Equifax
EFX
$29.6B
| $2.64M | ﹤0.01% |
13,696
+10,753
| +365% | +$2.07M |
|
164
Health Care Select Sector SPDR Fund
XLV
$33.9B
| $2.64M | ﹤0.01% |
23,262
+23,062
| +11,531% | +$2.62M |
|
165
Intuitive Surgical
ISRG
$163B
| $2.61M | ﹤0.01% |
9,576
+8,709
| +1,004% | +$2.37M |
|
166
Direxion Daily Technology Bull 3x Shares
TECL
$3.47B
| $2.59M | ﹤0.01% |
63,820
+31,820
| +99% | +$1.29M |
|
167
Deere & Co
DE
$128B
| $2.58M | ﹤0.01% |
+9,596
| New | +$2.58M |
|
168
Pan American Silver
PAAS
$12.1B
| $2.56M | ﹤0.01% |
74,042
+6,181
| +9% | +$213K |
|
169
Best Buy
BBY
$16.3B
| $2.55M | ﹤0.01% |
25,576
+18,316
| +252% | +$1.83M |
|
|
CHL
170
DELISTED
China Mobile Limited
CHL
| $2.54M | ﹤0.01% |
89,145
+43,076
| +94% | +$1.23M |
|
|
GBT
171
DELISTED
Global Blood Therapeutics, Inc.
GBT
| $2.52M | ﹤0.01% |
+58,260
| New | +$2.52M |
|
172
Cboe Global Markets
CBOE
$24.5B
| $2.52M | ﹤0.01% |
+27,056
| New | +$2.52M |
|
173
Fiverr
FVRR
$864M
| $2.52M | ﹤0.01% |
12,904
+10,701
| +486% | +$2.09M |
|
|
RDS.B
174
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
| $2.49M | ﹤0.01% |
74,223
+34,583
| +87% | +$1.16M |
|
175
Plug Power
PLUG
$1.66B
| $2.48M | ﹤0.01% |
73,262
-32,624
| -31% | -$1.11M |
|