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 |
Boeing
BA
|
$49.5M |
| 2 |
Pinduoduo
PDD
|
$45.3M |
| 3 |
Microsoft
MSFT
|
$42.5M |
| 4 |
Apple
AAPL
|
$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
$95.4M |
| 2 |
Citigroup
C
|
$57.9M |
| 3 |
Pfizer
PFE
|
$55.9M |
| 4 |
TSMC
TSM
|
$40.4M |
| 5 |
Starbucks
SBUX
|
$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
126
Nice
NICE
$8.48B
| $5M | ﹤0.01% |
+28,812
| New | +$5M |
|
127
Salesforce
CRM
$245B
| $4.99M | ﹤0.01% |
+18,218
| New | +$4.99M |
|
128
Expeditors International
EXPD
$16.3B
| $4.89M | ﹤0.01% |
37,232
+33,966
| +1,040% | +$4.46M |
|
129
Eli Lilly
LLY
$661B
| $4.82M | ﹤0.01% |
+5,445
| New | +$4.82M |
|
130
Macy's
M
$4.36B
| $4.82M | ﹤0.01% |
+306,960
| New | +$4.82M |
|
131
ProShares UltraShort Bloomberg Natural Gas
KOLD
$166M
| $4.74M | ﹤0.01% |
85,830
+20,178
| +31% | +$1.11M |
|
132
TransDigm Group
TDG
$72B
| $4.68M | ﹤0.01% |
3,282
+472
| +17% | +$673K |
|
133
Wolfspeed
WOLF
$203M
| $4.68M | ﹤0.01% |
482,813
+204,848
| +74% | +$1.99M |
|
134
Tyson Foods
TSN
$20B
| $4.67M | ﹤0.01% |
78,357
-25,395
| -24% | -$1.51M |
|
135
United States Oil Fund
USO
$967M
| $4.66M | ﹤0.01% |
66,596
+65,533
| +6,165% | +$4.58M |
|
136
Invesco CurrencyShares Japanese Yen Trust
FXY
$559M
| $4.63M | ﹤0.01% |
+71,971
| New | +$4.63M |
|
137
Global Payments
GPN
$21B
| $4.5M | ﹤0.01% |
43,945
-9,208
| -17% | -$943K |
|
138
iShares MSCI Japan ETF
EWJ
$15.2B
| $4.47M | ﹤0.01% |
+62,490
| New | +$4.47M |
|
139
NetEase
NTES
$85.4B
| $4.47M | ﹤0.01% |
47,810
+35,683
| +294% | +$3.34M |
|
140
United States Natural Gas Fund
UNG
$621M
| $4.47M | ﹤0.01% |
273,546
+230,136
| +530% | +$3.76M |
|
141
CleanSpark
CLSK
$2.65B
| $4.45M | ﹤0.01% |
476,287
-60,593
| -11% | -$566K |
|
142
Synchrony
SYF
$28.1B
| $4.45M | ﹤0.01% |
+89,127
| New | +$4.45M |
|
143
International Flavors & Fragrances
IFF
$16.8B
| $4.44M | ﹤0.01% |
42,341
-6,006
| -12% | -$630K |
|
144
Vodafone
VOD
$28.2B
| $4.39M | ﹤0.01% |
437,732
+23,192
| +6% | +$232K |
|
145
Chubb
CB
$111B
| $4.37M | ﹤0.01% |
+15,142
| New | +$4.37M |
|
146
Insmed
INSM
$30.3B
| $4.35M | ﹤0.01% |
+59,561
| New | +$4.35M |
|
147
Agnico Eagle Mines
AEM
$74.7B
| $4.3M | ﹤0.01% |
+53,430
| New | +$4.3M |
|
148
Fiserv
FI
$74.3B
| $4.29M | ﹤0.01% |
23,865
+22,442
| +1,577% | +$4.03M |
|
149
Apollo Global Management
APO
$75.9B
| $4.29M | ﹤0.01% |
+34,318
| New | +$4.29M |
|
150
Live Nation Entertainment
LYV
$37.6B
| $4.27M | ﹤0.01% |
39,005
+30,179
| +342% | +$3.3M |
|