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 |
NVIDIA
NVDA
|
$114M |
| 2 |
Citigroup
C
|
$77M |
| 3 |
Broadcom
AVGO
|
$53M |
| 4 |
Pinduoduo
PDD
|
$49.7M |
| 5 |
Intel
INTC
|
$44.5M |
Top Sells
| 1 |
Energy Select Sector SPDR Fund
XLE
|
$92.5M |
| 2 |
Pfizer
PFE
|
$67.5M |
| 3 |
Boeing
BA
|
$66.7M |
| 4 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
$44.9M |
| 5 |
PayPal
PYPL
|
$44.4M |
Sector Composition
| 1 | Technology | 27.91% |
| 2 | Consumer Discretionary | 14.92% |
| 3 | Healthcare | 10.74% |
| 4 | Financials | 10.11% |
| 5 | Materials | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
176
Norwegian Cruise Line
NCLH
$11.6B
| $3.37M | ﹤0.01% |
+179,188
| New | +$3.37M |
|
177
TJX Companies
TJX
$155B
| $3.35M | ﹤0.01% |
+30,446
| New | +$3.35M |
|
178
XPO
XPO
$15.4B
| $3.32M | ﹤0.01% |
31,323
+9,327
| +42% | +$990K |
|
179
Zoom
ZM
$25B
| $3.3M | ﹤0.01% |
+55,793
| New | +$3.3M |
|
180
Symbotic
SYM
$5.37B
| $3.29M | ﹤0.01% |
93,493
+30,533
| +48% | +$1.07M |
|
181
QuantumScape
QS
$4.44B
| $3.28M | ﹤0.01% |
666,079
-329,555
| -33% | -$1.62M |
|
182
First Citizens BancShares
FCNCA
$24.9B
| $3.27M | ﹤0.01% |
+1,942
| New | +$3.27M |
|
183
Knight Transportation
KNX
$7B
| $3.25M | ﹤0.01% |
65,190
+45,354
| +229% | +$2.26M |
|
184
Etsy
ETSY
$5.36B
| $3.25M | ﹤0.01% |
55,100
+15,086
| +38% | +$890K |
|
185
Amphenol
APH
$135B
| $3.24M | ﹤0.01% |
+48,096
| New | +$3.24M |
|
186
Kinross Gold
KGC
$26.9B
| $3.23M | ﹤0.01% |
388,752
+40,448
| +12% | +$336K |
|
187
ProShares UltraShort Bloomberg Natural Gas
KOLD
$172M
| $3.23M | ﹤0.01% |
65,652
-5,930
| -8% | -$292K |
|
188
Peloton Interactive
PTON
$3.27B
| $3.18M | ﹤0.01% |
939,521
-4,766
| -0.5% | -$16.1K |
|
189
Keurig Dr Pepper
KDP
$38.9B
| $3.17M | ﹤0.01% |
94,936
-7,413
| -7% | -$248K |
|
190
Shopify
SHOP
$191B
| $3.16M | ﹤0.01% |
+47,780
| New | +$3.16M |
|
191
Jabil
JBL
$22.5B
| $3.15M | ﹤0.01% |
28,990
-2,984
| -9% | -$325K |
|
192
TransUnion
TRU
$17.5B
| $3.15M | ﹤0.01% |
42,450
+2,965
| +8% | +$220K |
|
193
PBF Energy
PBF
$3.3B
| $3.12M | ﹤0.01% |
67,789
+45,813
| +208% | +$2.11M |
|
194
Royal Gold
RGLD
$12.2B
| $3.12M | ﹤0.01% |
24,921
+23,630
| +1,830% | +$2.96M |
|
195
Kohl's
KSS
$1.86B
| $3.11M | ﹤0.01% |
+135,310
| New | +$3.11M |
|
196
Pan American Silver
PAAS
$14.6B
| $3.11M | ﹤0.01% |
156,244
-171,909
| -52% | -$3.42M |
|
197
Amplify Junior Silver Miners ETF
SILJ
$2.07B
| $3.09M | ﹤0.01% |
272,538
+210,832
| +342% | +$2.39M |
|
198
KKR & Co
KKR
$121B
| $3.08M | ﹤0.01% |
29,219
+23,671
| +427% | +$2.49M |
|
199
Ionis Pharmaceuticals
IONS
$9.76B
| $3.02M | ﹤0.01% |
63,347
+54,817
| +643% | +$2.61M |
|
200
Scotiabank
BNS
$78.8B
| $2.96M | ﹤0.01% |
+64,682
| New | +$2.96M |
|