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 |
Goldman Sachs
GS
|
$38.4M |
| 2 |
Micron Technology
MU
|
$23.7M |
| 3 |
NVIDIA
NVDA
|
$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$21.7M |
| 5 |
Wells Fargo
WFC
|
$20.4M |
Top Sells
| 1 |
Citigroup
C
|
$21.6M |
| 2 |
Apple
AAPL
|
$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
$13.3M |
| 4 |
Eli Lilly
LLY
|
$9.69M |
| 5 |
Mastercard
MA
|
$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
WFM
151
DELISTED
Whole Foods Market Inc
WFM
| $2.06M | 0.09% |
69,271
+33,769
| +95% | +$1M |
|
152
Ciena
CIEN
$13.4B
| $2.02M | 0.09% |
+85,398
| New | +$2.02M |
|
153
Crown Castle
CCI
$42.3B
| $2.01M | 0.09% |
21,301
-19,422
| -48% | -$1.83M |
|
|
JWN
154
DELISTED
Nordstrom
JWN
| $2.01M | 0.09% |
43,063
+39,389
| +1,072% | +$1.83M |
|
155
First Solar
FSLR
$21.6B
| $1.99M | 0.09% |
+73,364
| New | +$1.99M |
|
156
Jack in the Box
JACK
$339M
| $1.99M | 0.09% |
19,518
+11,606
| +147% | +$1.18M |
|
157
UnitedHealth
UNH
$279B
| $1.93M | 0.08% |
+11,792
| New | +$1.93M |
|
158
Target
TGT
$42B
| $1.93M | 0.08% |
+34,940
| New | +$1.93M |
|
|
CAB
159
DELISTED
Cabela's Inc
CAB
| $1.89M | 0.08% |
35,528
+11,036
| +45% | +$586K |
|
160
Skyworks Solutions
SWKS
$10.9B
| $1.86M | 0.08% |
+18,994
| New | +$1.86M |
|
161
WIX.com
WIX
$8.05B
| $1.86M | 0.08% |
27,332
+24,885
| +1,017% | +$1.69M |
|
162
Coterra Energy
CTRA
$18.4B
| $1.85M | 0.08% |
77,477
+30,588
| +65% | +$731K |
|
163
Radware
RDWR
$1.06B
| $1.79M | 0.08% |
110,460
+44,418
| +67% | +$718K |
|
|
MDCO
164
DELISTED
Medicines Co
MDCO
| $1.76M | 0.08% |
36,020
+29,396
| +444% | +$1.44M |
|
165
Trip.com Group
TCOM
$46.6B
| $1.75M | 0.08% |
35,600
-42,094
| -54% | -$2.07M |
|
166
Dolby
DLB
$6.94B
| $1.75M | 0.08% |
33,372
+30,712
| +1,155% | +$1.61M |
|
167
HDFC Bank
HDB
$181B
| $1.73M | 0.07% |
23,013
-2,064
| -8% | -$155K |
|
168
Hanesbrands
HBI
$2.17B
| $1.73M | 0.07% |
+83,322
| New | +$1.73M |
|
169
Cisco
CSCO
$268B
| $1.72M | 0.07% |
51,035
+2,599
| +5% | +$87.8K |
|
170
Global Payments
GPN
$21B
| $1.72M | 0.07% |
21,368
+21,211
| +13,510% | +$1.71M |
|
171
ProShares UltraPro S&P 500
UPRO
$4.43B
| $1.72M | 0.07% |
17,913
-18,097
| -50% | -$1.74M |
|
172
PayPal
PYPL
$66.5B
| $1.72M | 0.07% |
39,949
+1,253
| +3% | +$53.9K |
|
173
Range Resources
RRC
$8.18B
| $1.71M | 0.07% |
+58,709
| New | +$1.71M |
|
|
RSX
174
DELISTED
VanEck Russia ETF
RSX
| $1.71M | 0.07% |
+82,493
| New | +$1.71M |
|
175
Freeport-McMoran
FCX
$66.3B
| $1.68M | 0.07% |
+126,084
| New | +$1.68M |
|