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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
$84.4M |
| 3 |
NVIDIA
NVDA
|
$76.9M |
| 4 |
TSMC
TSM
|
$74.9M |
| 5 |
Amazon
AMZN
|
$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$73.7M |
| 3 |
Alibaba
BABA
|
$49M |
| 4 |
Advanced Micro Devices
AMD
|
$48.1M |
| 5 |
Uber
UBER
|
$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
201
Oxford Industries
OXM
$629M
| $2.17M | ﹤0.01% |
36,922
+36,174
| +4,836% | +$2.12M |
|
202
Deere & Co
DE
$128B
| $2.14M | ﹤0.01% |
4,567
-401
| -8% | -$188K |
|
203
HSBC
HSBC
$227B
| $2.14M | ﹤0.01% |
+37,320
| New | +$2.14M |
|
204
American Electric Power
AEP
$57.8B
| $2.12M | ﹤0.01% |
+19,392
| New | +$2.12M |
|
205
Gogo Inc
GOGO
$1.43B
| $2.11M | ﹤0.01% |
245,149
-13,984
| -5% | -$121K |
|
206
Phillips 66
PSX
$53.2B
| $2.11M | ﹤0.01% |
17,120
+5,721
| +50% | +$706K |
|
207
Stanley Black & Decker
SWK
$12.1B
| $2.06M | ﹤0.01% |
26,750
+19,500
| +269% | +$1.5M |
|
|
SWTX
208
DELISTED
SpringWorks Therapeutics
SWTX
| $2.05M | ﹤0.01% |
46,435
+38,020
| +452% | +$1.68M |
|
|
GTM
209
ZoomInfo Technologies
GTM
$3.26B
| $2.05M | ﹤0.01% |
204,622
+81,124
| +66% | +$811K |
|
210
SharkNinja
SN
$16.5B
| $2M | ﹤0.01% |
24,037
+831
| +4% | +$69.3K |
|
211
US Global Jets ETF
JETS
$839M
| $2M | ﹤0.01% |
96,265
+93,940
| +4,040% | +$1.95M |
|
212
CoStar Group
CSGP
$37.9B
| $2M | ﹤0.01% |
+25,214
| New | +$2M |
|
213
Macy's
M
$4.64B
| $1.99M | ﹤0.01% |
158,286
-130,809
| -45% | -$1.64M |
|
214
Philip Morris
PM
$251B
| $1.99M | ﹤0.01% |
+12,508
| New | +$1.99M |
|
215
Vale
VALE
$44.4B
| $1.97M | ﹤0.01% |
196,978
-1,081,062
| -85% | -$10.8M |
|
216
Prudential Financial
PRU
$37.2B
| $1.96M | ﹤0.01% |
+17,582
| New | +$1.96M |
|
217
Ionis Pharmaceuticals
IONS
$9.76B
| $1.95M | ﹤0.01% |
+64,581
| New | +$1.95M |
|
218
Intuitive Machines
LUNR
$1B
| $1.94M | ﹤0.01% |
260,354
+235,960
| +967% | +$1.76M |
|
219
GE Vernova
GEV
$158B
| $1.93M | ﹤0.01% |
6,324
+2,914
| +85% | +$889K |
|
220
BWX Technologies
BWXT
$15B
| $1.93M | ﹤0.01% |
19,523
+5,793
| +42% | +$571K |
|
221
FedEx
FDX
$53.7B
| $1.92M | ﹤0.01% |
7,868
-5,612
| -42% | -$1.37M |
|
222
Take-Two Interactive
TTWO
$44.2B
| $1.92M | ﹤0.01% |
+9,259
| New | +$1.92M |
|
223
LyondellBasell Industries
LYB
$17.7B
| $1.91M | ﹤0.01% |
27,201
+25,940
| +2,057% | +$1.83M |
|
224
Cintas
CTAS
$82.4B
| $1.91M | ﹤0.01% |
+9,275
| New | +$1.91M |
|
225
ODDITY Tech
ODD
$3.52B
| $1.91M | ﹤0.01% |
+44,058
| New | +$1.91M |
|