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
|
$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
$68.7M |
| 3 |
AT&T
T
|
$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
$94.2M |
| 2 |
Citigroup
C
|
$62.3M |
| 3 |
JPMorgan Chase
JPM
|
$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
176
iShares US Home Construction ETF
ITB
$3.35B
| $2.05M | ﹤0.01% |
+33,887
| New | +$2.05M |
|
177
DocuSign
DOCU
$16.1B
| $2.05M | ﹤0.01% |
36,909
+36,732
| +20,753% | +$2.04M |
|
178
Vanguard Mid-Cap Value ETF
VOE
$18.8B
| $2.03M | ﹤0.01% |
15,029
+11,265
| +299% | +$1.52M |
|
179
Futu Holdings
FUTU
$26.1B
| $2.03M | ﹤0.01% |
49,828
+496
| +1% | +$20.2K |
|
180
ScottsMiracle-Gro
SMG
$3.64B
| $2.01M | ﹤0.01% |
41,454
+32,394
| +358% | +$1.57M |
|
181
Intuitive Surgical
ISRG
$167B
| $1.99M | ﹤0.01% |
7,513
-34,740
| -82% | -$9.22M |
|
182
iShares Mortgage Real Estate ETF
REM
$618M
| $1.99M | ﹤0.01% |
+87,833
| New | +$1.99M |
|
183
Vanguard FTSE Emerging Markets ETF
VWO
$97.2B
| $1.98M | ﹤0.01% |
+50,849
| New | +$1.98M |
|
184
Sonoco
SON
$4.56B
| $1.96M | ﹤0.01% |
32,323
+7,153
| +28% | +$434K |
|
185
Haleon
HLN
$43.9B
| $1.96M | ﹤0.01% |
244,714
+43,607
| +22% | +$349K |
|
|
SYNH
186
DELISTED
Syneos Health, Inc. Class A Common Stock
SYNH
| $1.94M | ﹤0.01% |
+52,864
| New | +$1.94M |
|
187
iShares MSCI United Kingdom ETF
EWU
$2.9B
| $1.94M | ﹤0.01% |
+63,168
| New | +$1.94M |
|
188
CenterPoint Energy
CNP
$24.7B
| $1.93M | ﹤0.01% |
64,323
+55,058
| +594% | +$1.65M |
|
189
Embraer
ERJ
$11.2B
| $1.92M | ﹤0.01% |
175,629
+79,792
| +83% | +$872K |
|
190
STMicroelectronics
STM
$24B
| $1.91M | ﹤0.01% |
+53,718
| New | +$1.91M |
|
191
Quanterix
QTRX
$211M
| $1.91M | ﹤0.01% |
137,836
+33,923
| +33% | +$470K |
|
192
Vanguard S&P 500 Growth ETF
VOOG
$19.3B
| $1.91M | ﹤0.01% |
9,035
+1,435
| +19% | +$303K |
|
193
CVS Health
CVS
$93.6B
| $1.9M | ﹤0.01% |
20,420
-31,564
| -61% | -$2.94M |
|
194
Axon Enterprise
AXON
$57.2B
| $1.9M | ﹤0.01% |
11,423
+7,670
| +204% | +$1.27M |
|
195
Fomento Económico Mexicano
FMX
$29.6B
| $1.89M | ﹤0.01% |
24,242
-16,045
| -40% | -$1.25M |
|
196
Wynn Resorts
WYNN
$12.6B
| $1.88M | ﹤0.01% |
22,835
-60,898
| -73% | -$5.02M |
|
197
Enovix
ENVX
$1.81B
| $1.87M | ﹤0.01% |
+172,009
| New | +$1.87M |
|
198
Dynavax Technologies
DVAX
$1.18B
| $1.87M | ﹤0.01% |
175,776
+1,630
| +0.9% | +$17.3K |
|
199
Griffon
GFF
$3.79B
| $1.87M | ﹤0.01% |
52,194
+18,796
| +56% | +$673K |
|
|
VRNA
200
Verona Pharma
VRNA
$9.2B
| $1.86M | ﹤0.01% |
+71,332
| New | +$1.86M |
|