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 |
Financial Select Sector SPDR Fund
XLF
|
$42.3M |
| 2 |
Shopify
SHOP
|
$37.4M |
| 3 |
Verizon
VZ
|
$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
$33M |
| 5 |
Merck
MRK
|
$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
$38.3M |
| 2 |
Carnival Corp
CCL
|
$37.6M |
| 3 |
GE Aerospace
GE
|
$33M |
| 4 |
Advanced Micro Devices
AMD
|
$30.6M |
| 5 |
Micron Technology
MU
|
$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
201
Southern Company
SO
$101B
| $3.39M | ﹤0.01% |
49,500
+38,761
| +361% | +$2.66M |
|
202
Opendoor
OPEN
$4.89B
| $3.39M | ﹤0.01% |
232,136
+44,900
| +24% | +$656K |
|
203
ZIM Integrated Shipping Services
ZIM
$1.62B
| $3.37M | ﹤0.01% |
57,192
+32,035
| +127% | +$1.89M |
|
204
FirstEnergy
FE
$25.1B
| $3.36M | ﹤0.01% |
+80,775
| New | +$3.36M |
|
205
Philip Morris
PM
$251B
| $3.35M | ﹤0.01% |
35,274
+33,078
| +1,506% | +$3.14M |
|
206
Tapestry
TPR
$21.7B
| $3.33M | ﹤0.01% |
82,107
+38,022
| +86% | +$1.54M |
|
207
International Paper
IP
$25.7B
| $3.26M | ﹤0.01% |
69,366
-15,325
| -18% | -$720K |
|
208
Albemarle
ALB
$9.6B
| $3.26M | ﹤0.01% |
+13,936
| New | +$3.26M |
|
209
Intercontinental Exchange
ICE
$99.8B
| $3.24M | ﹤0.01% |
+23,722
| New | +$3.24M |
|
210
AMN Healthcare
AMN
$799M
| $3.23M | ﹤0.01% |
+26,407
| New | +$3.23M |
|
211
ProShares Ultra Bloomberg Crude Oil
UCO
$356M
| $3.22M | ﹤0.01% |
148,468
-7,372
| -5% | -$160K |
|
212
Booking.com
BKNG
$178B
| $3.21M | ﹤0.01% |
+1,340
| New | +$3.21M |
|
213
iShares Core S&P 500 ETF
IVV
$664B
| $3.21M | ﹤0.01% |
6,728
+4,369
| +185% | +$2.08M |
|
214
lululemon athletica
LULU
$19.9B
| $3.19M | ﹤0.01% |
8,137
-1,919
| -19% | -$751K |
|
|
TWTR
215
DELISTED
Twitter, Inc.
TWTR
| $3.18M | ﹤0.01% |
+73,640
| New | +$3.18M |
|
|
216
AMC Entertainment Holdings
AMC
$1.41B
| $3.15M | ﹤0.01% |
11,575
-140,669
| -92% | -$38.3M |
|
217
Nutrien
NTR
$27.4B
| $3.14M | ﹤0.01% |
41,776
-5,077
| -11% | -$382K |
|
218
Energy Transfer Partners
ET
$59.7B
| $3.08M | ﹤0.01% |
374,527
-60,884
| -14% | -$501K |
|
219
General Mills
GIS
$27B
| $3.07M | ﹤0.01% |
+45,604
| New | +$3.07M |
|
220
Academy Sports + Outdoors
ASO
$3.39B
| $3.05M | ﹤0.01% |
+69,548
| New | +$3.05M |
|
|
AUY
221
DELISTED
Yamana Gold, Inc.
AUY
| $3.01M | ﹤0.01% |
714,407
+510,096
| +250% | +$2.15M |
|
222
Invesco S&P 500 Equal Weight ETF
RSP
$74.1B
| $3M | ﹤0.01% |
18,408
-80
| -0.4% | -$13K |
|
223
Elastic
ESTC
$9.21B
| $2.99M | ﹤0.01% |
24,281
+10,852
| +81% | +$1.34M |
|
224
Vertex Pharmaceuticals
VRTX
$102B
| $2.98M | ﹤0.01% |
13,565
+4,265
| +46% | +$936K |
|
225
Sherwin-Williams
SHW
$92.9B
| $2.96M | ﹤0.01% |
8,419
-3,338
| -28% | -$1.18M |
|