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
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
226
PayPal
PYPL
$66.5B
| $2.52M | ﹤0.01% |
29,499
+9,337
| +46% | +$797K |
|
227
Knight Transportation
KNX
$7.07B
| $2.49M | ﹤0.01% |
47,030
+34,503
| +275% | +$1.83M |
|
228
Dow Inc
DOW
$17B
| $2.49M | ﹤0.01% |
+62,223
| New | +$2.49M |
|
229
Clorox
CLX
$15B
| $2.43M | ﹤0.01% |
14,958
-20,166
| -57% | -$3.27M |
|
230
Peloton Interactive
PTON
$3.1B
| $2.41M | ﹤0.01% |
277,277
-585,381
| -68% | -$5.09M |
|
231
KLA
KLAC
$111B
| $2.41M | ﹤0.01% |
+3,825
| New | +$2.41M |
|
232
Centene
CNC
$14.8B
| $2.41M | ﹤0.01% |
+39,766
| New | +$2.41M |
|
233
BJs Wholesale Club
BJ
$12.7B
| $2.4M | ﹤0.01% |
26,901
+4,888
| +22% | +$437K |
|
234
Global X Uranium ETF
URA
$4.23B
| $2.4M | ﹤0.01% |
89,509
-138,690
| -61% | -$3.71M |
|
235
BP
BP
$88.8B
| $2.4M | ﹤0.01% |
81,070
-107,924
| -57% | -$3.19M |
|
236
CenterPoint Energy
CNP
$24.6B
| $2.39M | ﹤0.01% |
75,170
+49,852
| +197% | +$1.58M |
|
237
Union Pacific
UNP
$132B
| $2.38M | ﹤0.01% |
10,442
-32,568
| -76% | -$7.43M |
|
238
Sable Offshore Corp
SOC
$2.26B
| $2.37M | ﹤0.01% |
103,668
+48,286
| +87% | +$1.11M |
|
239
Walmart
WMT
$793B
| $2.37M | ﹤0.01% |
+26,186
| New | +$2.37M |
|
240
Atlassian
TEAM
$44.8B
| $2.36M | ﹤0.01% |
+9,717
| New | +$2.36M |
|
241
ProShares UltraPro Dow 30
UDOW
$708M
| $2.34M | ﹤0.01% |
24,732
+19,159
| +344% | +$1.81M |
|
242
iShares MSCI South Korea ETF
EWY
$5.17B
| $2.33M | ﹤0.01% |
45,696
+36,441
| +394% | +$1.85M |
|
243
Kodak
KODK
$465M
| $2.3M | ﹤0.01% |
349,380
+299,644
| +602% | +$1.97M |
|
244
Chart Industries
GTLS
$8.94B
| $2.27M | ﹤0.01% |
11,890
+7,541
| +173% | +$1.44M |
|
245
ProShares Short VIX Short-Term Futures ETF
SVXY
$246M
| $2.26M | ﹤0.01% |
45,228
+20,039
| +80% | +$1M |
|
246
Rubrik
RBRK
$17B
| $2.26M | ﹤0.01% |
+34,641
| New | +$2.26M |
|
247
SharkNinja
SN
$16.7B
| $2.26M | ﹤0.01% |
23,206
+15,153
| +188% | +$1.48M |
|
248
Caesars Entertainment
CZR
$5.18B
| $2.26M | ﹤0.01% |
67,544
-21,435
| -24% | -$716K |
|
249
Regeneron Pharmaceuticals
REGN
$59.8B
| $2.23M | ﹤0.01% |
3,131
-618
| -16% | -$440K |
|
250
Waste Connections
WCN
$46.5B
| $2.2M | ﹤0.01% |
12,837
+12,736
| +12,610% | +$2.18M |
|