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 |
Apple
AAPL
|
$45.7M |
| 2 |
Walmart
WMT
|
$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$33.2M |
| 5 |
Citigroup
C
|
$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
$111M |
| 3 |
NVIDIA
NVDA
|
$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
$60.9M |
| 5 |
Procter & Gamble
PG
|
$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
151
Invesco DB US Dollar Index Bullish Fund
UUP
$174M
| $2.83M | ﹤0.01% |
101,679
-328,175
| -76% | -$9.15M |
|
152
Philip Morris
PM
$251B
| $2.82M | ﹤0.01% |
28,987
-3,545
| -11% | -$345K |
|
153
iShares MSCI Germany ETF
EWG
$2.51B
| $2.8M | ﹤0.01% |
+98,449
| New | +$2.8M |
|
154
Duolingo
DUOL
$12.4B
| $2.8M | ﹤0.01% |
19,618
+18,763
| +2,195% | +$2.68M |
|
155
PayPal
PYPL
$65.2B
| $2.8M | ﹤0.01% |
36,844
-231,724
| -86% | -$17.6M |
|
156
Comcast
CMCSA
$125B
| $2.79M | ﹤0.01% |
+73,684
| New | +$2.79M |
|
157
Alnylam Pharmaceuticals
ALNY
$59.2B
| $2.75M | ﹤0.01% |
13,723
+4,846
| +55% | +$970K |
|
158
Autodesk
ADSK
$69.5B
| $2.7M | ﹤0.01% |
12,958
+12,390
| +2,181% | +$2.58M |
|
159
First Majestic Silver
AG
$4.47B
| $2.7M | ﹤0.01% |
374,136
+318,312
| +570% | +$2.29M |
|
160
argenx
ARGX
$45.9B
| $2.7M | ﹤0.01% |
+7,239
| New | +$2.7M |
|
161
Alpha Metallurgical Resources
AMR
$1.91B
| $2.62M | ﹤0.01% |
16,765
+14,912
| +805% | +$2.33M |
|
162
Conagra Brands
CAG
$9.23B
| $2.61M | ﹤0.01% |
69,496
+48,039
| +224% | +$1.8M |
|
163
Kohl's
KSS
$1.86B
| $2.6M | ﹤0.01% |
110,627
+100,390
| +981% | +$2.36M |
|
|
DM
164
DELISTED
Desktop Metal, Inc.
DM
| $2.59M | ﹤0.01% |
112,529
+51,865
| +85% | +$1.19M |
|
165
SAP
SAP
$313B
| $2.58M | ﹤0.01% |
+20,402
| New | +$2.58M |
|
166
Weyerhaeuser
WY
$18.9B
| $2.58M | ﹤0.01% |
85,537
+65,751
| +332% | +$1.98M |
|
167
Constellation Energy
CEG
$94.2B
| $2.57M | ﹤0.01% |
+32,767
| New | +$2.57M |
|
168
Mercado Libre
MELI
$123B
| $2.53M | ﹤0.01% |
+1,923
| New | +$2.53M |
|
169
Transocean
RIG
$2.9B
| $2.53M | ﹤0.01% |
397,864
-328,328
| -45% | -$2.09M |
|
170
Crocs
CROX
$4.72B
| $2.53M | ﹤0.01% |
20,001
-65,322
| -77% | -$8.26M |
|
171
Loews
L
$20B
| $2.52M | ﹤0.01% |
+43,386
| New | +$2.52M |
|
172
RB Global
RBA
$21.4B
| $2.51M | ﹤0.01% |
44,542
+33,249
| +294% | +$1.87M |
|
173
iShares 1-3 Year Treasury Bond ETF
SHY
$24.5B
| $2.5M | ﹤0.01% |
+30,484
| New | +$2.5M |
|
174
Sibanye-Stillwater
SBSW
$6.08B
| $2.47M | ﹤0.01% |
296,888
+227,339
| +327% | +$1.89M |
|
175
Papa John's
PZZA
$1.58B
| $2.46M | ﹤0.01% |
32,894
+19,238
| +141% | +$1.44M |
|