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 |
AMC Entertainment Holdings
AMC
|
$84.2M |
| 2 |
NVIDIA
NVDA
|
$35.3M |
| 3 |
AT&T
T
|
$28.5M |
| 4 |
Micron Technology
MU
|
$23.1M |
| 5 |
Baidu
BIDU
|
$22.7M |
Top Sells
| 1 |
Palantir
PLTR
|
$29.3M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$26.2M |
| 3 |
PARA
Paramount Global Class B
PARA
|
$21.7M |
| 4 |
Exxon Mobil
XOM
|
$18M |
| 5 |
Lam Research
LRCX
|
$16.3M |
Sector Composition
| 1 | Technology | 17.69% |
| 2 | Consumer Discretionary | 14.79% |
| 3 | Communication Services | 10.15% |
| 4 | Healthcare | 9.69% |
| 5 | Financials | 9.42% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
176
lululemon athletica
LULU
$23.8B
| $3.34M | ﹤0.01% |
9,159
-2,709
| -23% | -$988K |
|
177
Blackrock
BLK
$170B
| $3.3M | ﹤0.01% |
3,770
-2,228
| -37% | -$1.95M |
|
178
Ralph Lauren
RL
$19B
| $3.29M | ﹤0.01% |
+27,949
| New | +$3.29M |
|
179
Stellantis
STLA
$26.4B
| $3.27M | ﹤0.01% |
166,045
+5,443
| +3% | +$107K |
|
180
BILL Holdings
BILL
$4.69B
| $3.25M | ﹤0.01% |
17,747
+13,419
| +310% | +$2.46M |
|
|
CMRC
181
Commerce.com, Inc. Series 1 Common Stock
CMRC
$359M
| $3.2M | ﹤0.01% |
49,239
+39,805
| +422% | +$2.58M |
|
182
ProShares Ultra Bloomberg Crude Oil
UCO
$376M
| $3.19M | ﹤0.01% |
40,813
+3,701
| +10% | +$289K |
|
183
Bunge Global
BG
$16.3B
| $3.17M | ﹤0.01% |
+40,595
| New | +$3.17M |
|
184
Dell
DELL
$83.9B
| $3.14M | ﹤0.01% |
31,515
-14,041
| -31% | -$1.4M |
|
185
Lemonade
LMND
$3.68B
| $3.13M | ﹤0.01% |
28,610
-3,974
| -12% | -$435K |
|
|
NEX
186
DELISTED
NexTier Oilfield Solutions Inc.
NEX
| $3.11M | ﹤0.01% |
653,260
+468,719
| +254% | +$2.23M |
|
187
Amplify Junior Silver Miners ETF
SILJ
$2.06B
| $3.1M | ﹤0.01% |
203,698
+83,524
| +70% | +$1.27M |
|
188
iShares Russell 1000 Growth ETF
IWF
$117B
| $3.09M | ﹤0.01% |
+11,377
| New | +$3.09M |
|
189
CVS Health
CVS
$93B
| $3.08M | ﹤0.01% |
36,879
+18,489
| +101% | +$1.54M |
|
190
Boston Scientific
BSX
$159B
| $3.07M | ﹤0.01% |
+71,913
| New | +$3.07M |
|
191
Microvision
MVIS
$334M
| $3.06M | ﹤0.01% |
182,678
-25,883
| -12% | -$433K |
|
192
Opendoor
OPEN
$3.78B
| $3.04M | ﹤0.01% |
171,665
+164,811
| +2,405% | +$2.92M |
|
193
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$2.31B
| $3.04M | ﹤0.01% |
75,041
+43,693
| +139% | +$1.77M |
|
194
Sherwin-Williams
SHW
$90.5B
| $3.03M | ﹤0.01% |
11,138
+5,024
| +82% | -$1.96M |
|
195
New Oriental
EDU
$7.98B
| $3.03M | ﹤0.01% |
370,351
+341,035
| +1,163% | +$2.79M |
|
|
DISCA
196
DELISTED
Discovery, Inc. Series A Common Stock
DISCA
| $3.02M | ﹤0.01% |
98,387
-34,932
| -26% | -$1.07M |
|
197
Parker-Hannifin
PH
$94.8B
| $3.02M | ﹤0.01% |
+9,820
| New | +$3.02M |
|
198
Capri Holdings
CPRI
$2.51B
| $3M | ﹤0.01% |
52,539
+13,667
| +35% | +$781K |
|
199
Valero Energy
VLO
$48.3B
| $2.99M | ﹤0.01% |
+38,339
| New | +$2.99M |
|
200
Bloom Energy
BE
$12.3B
| $2.98M | ﹤0.01% |
110,911
+58,662
| +112% | +$1.58M |
|