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 |
Amazon
AMZN
|
$158M |
| 2 |
Invesco QQQ Trust
QQQ
|
$69.1M |
| 3 |
Meta Platforms (Facebook)
META
|
$57.4M |
| 4 |
Citigroup
C
|
$23.4M |
| 5 |
Goldman Sachs
GS
|
$23M |
Top Sells
| 1 |
Apple
AAPL
|
$49.8M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
$43.2M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$42.2M |
| 4 |
Micron Technology
MU
|
$26.1M |
| 5 |
Adobe
ADBE
|
$21M |
Sector Composition
| 1 | Consumer Discretionary | 20.63% |
| 2 | Communication Services | 16.3% |
| 3 | Technology | 12.42% |
| 4 | Industrials | 9.24% |
| 5 | Healthcare | 8.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
201
Direxion Daily Junior Gold Miners Index Bear 2X Shares
JDST
$46.5M
| $1.54M | ﹤0.01% |
+78
| New | +$1.54M |
|
202
Teva Pharmaceuticals
TEVA
$21.7B
| $1.53M | ﹤0.01% |
+71,021
| New | +$1.53M |
|
203
Dollar General
DG
$24.1B
| $1.53M | ﹤0.01% |
+13,965
| New | +$1.53M |
|
204
Thor Industries
THO
$5.94B
| $1.52M | ﹤0.01% |
18,108
+14,498
| +402% | +$1.21M |
|
205
iShares Silver Trust
SLV
$20.1B
| $1.5M | ﹤0.01% |
109,532
-26,063
| -19% | -$358K |
|
206
NetEase
NTES
$85B
| $1.5M | ﹤0.01% |
+32,885
| New | +$1.5M |
|
207
Sherwin-Williams
SHW
$92.9B
| $1.49M | ﹤0.01% |
9,834
+7,011
| +248% | +$1.06M |
|
|
ICPT
208
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $1.45M | ﹤0.01% |
11,502
+5,299
| +85% | +$669K |
|
209
Vodafone
VOD
$28.5B
| $1.42M | ﹤0.01% |
+65,570
| New | +$1.42M |
|
210
AutoNation
AN
$8.55B
| $1.42M | ﹤0.01% |
34,104
+26,787
| +366% | +$1.11M |
|
211
Walt Disney
DIS
$212B
| $1.41M | ﹤0.01% |
12,030
-11,152
| -48% | -$1.3M |
|
|
BBL
212
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $1.41M | ﹤0.01% |
+31,954
| New | +$1.41M |
|
213
iShares MSCI Japan ETF
EWJ
$15.5B
| $1.39M | ﹤0.01% |
+23,158
| New | +$1.39M |
|
214
iShares Expanded Tech-Software Sector ETF
IGV
$9.85B
| $1.39M | ﹤0.01% |
33,965
-19,055
| -36% | -$781K |
|
215
Bath & Body Works
BBWI
$6.06B
| $1.39M | ﹤0.01% |
56,760
+36,374
| +178% | +$891K |
|
|
AZUL
216
DELISTED
Azul
AZUL
| $1.38M | ﹤0.01% |
+77,851
| New | +$1.38M |
|
217
Coterra Energy
CTRA
$18.3B
| $1.37M | ﹤0.01% |
60,910
+5,520
| +10% | +$124K |
|
218
Vicor
VICR
$2.33B
| $1.37M | ﹤0.01% |
29,823
-13,805
| -32% | -$635K |
|
219
SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$1.85B
| $1.35M | ﹤0.01% |
7,772
+6,049
| +351% | +$1.05M |
|
220
Gilead Sciences
GILD
$143B
| $1.34M | ﹤0.01% |
17,400
-31,606
| -64% | -$2.44M |
|
221
Materials Select Sector SPDR Fund
XLB
$5.52B
| $1.33M | ﹤0.01% |
23,020
+16,880
| +275% | +$977K |
|
|
AERI
222
DELISTED
Aerie Pharmaceuticals, Inc.
AERI
| $1.33M | ﹤0.01% |
21,553
+13,857
| +180% | +$853K |
|
|
DATA
223
DELISTED
Tableau Software, Inc.
DATA
| $1.32M | ﹤0.01% |
11,841
+11,233
| +1,848% | +$1.26M |
|
224
Willis Towers Watson
WTW
$32.1B
| $1.32M | ﹤0.01% |
9,366
+8,725
| +1,361% | +$1.23M |
|
225
VanEck Junior Gold Miners ETF
GDXJ
$7B
| $1.32M | ﹤0.01% |
48,110
-7,869
| -14% | -$215K |
|