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
|
$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
$38.8M |
| 4 |
Amazon
AMZN
|
$38.6M |
| 5 |
Tesla
TSLA
|
$36M |
Top Sells
| 1 |
Alibaba
BABA
|
$46.4M |
| 2 |
Boeing
BA
|
$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
$18.2M |
| 4 |
Biogen
BIIB
|
$15.8M |
| 5 |
NVIDIA
NVDA
|
$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
SGEN
201
DELISTED
Seagen Inc. Common Stock
SGEN
| $1.39M | ﹤0.01% |
12,128
-9,147
| -43% | -$1.04M |
|
202
Zscaler
ZS
$42.7B
| $1.38M | ﹤0.01% |
29,665
-25,230
| -46% | -$1.17M |
|
203
Qorvo
QRVO
$8.61B
| $1.37M | ﹤0.01% |
11,779
+5,602
| +91% | +$651K |
|
|
AMED
204
DELISTED
Amedisys
AMED
| $1.37M | ﹤0.01% |
+8,192
| New | +$1.37M |
|
205
Direxion Daily Small Cap Bear 3x Shares
TZA
$287M
| $1.37M | ﹤0.01% |
4,865
+3,781
| +349% | +$1.06M |
|
206
CoStar Group
CSGP
$37.9B
| $1.36M | ﹤0.01% |
22,800
-4,200
| -16% | -$251K |
|
207
Ball Corp
BALL
$13.9B
| $1.35M | ﹤0.01% |
20,879
-830
| -4% | -$53.7K |
|
208
Banco Bradesco
BBD
$33.6B
| $1.35M | ﹤0.01% |
200,769
+128,179
| +177% | +$862K |
|
209
Lam Research
LRCX
$130B
| $1.35M | ﹤0.01% |
+46,080
| New | +$1.35M |
|
210
Lowe's Companies
LOW
$151B
| $1.34M | ﹤0.01% |
11,192
+9,342
| +505% | +$1.12M |
|
|
SIVB
211
DELISTED
SVB Financial Group
SIVB
| $1.34M | ﹤0.01% |
+5,331
| New | +$1.34M |
|
|
212
Alphabet (Google) Class A
GOOGL
$2.84T
| $1.33M | ﹤0.01% |
19,900
-63,380
| -76% | -$4.24M |
|
|
DISH
213
DELISTED
DISH Network Corp.
DISH
| $1.32M | ﹤0.01% |
37,346
+6,471
| +21% | +$229K |
|
214
Equity Residential
EQR
$25.5B
| $1.31M | ﹤0.01% |
16,201
+14,250
| +730% | +$1.15M |
|
|
PTLA
215
DELISTED
Portola Pharmaceuticals, Inc.
PTLA
| $1.3M | ﹤0.01% |
54,636
+27,228
| +99% | +$650K |
|
216
Nexstar Media Group
NXST
$6.31B
| $1.3M | ﹤0.01% |
11,120
-2,496
| -18% | -$292K |
|
217
Amgen
AMGN
$153B
| $1.3M | ﹤0.01% |
5,397
-32,341
| -86% | -$7.8M |
|
|
DCP
218
DELISTED
DCP Midstream, LP
DCP
| $1.3M | ﹤0.01% |
+52,941
| New | +$1.3M |
|
|
CATM
219
DELISTED
Cardtronics plc Class A Ordinary Shares (UK)
CATM
| $1.29M | ﹤0.01% |
+28,910
| New | +$1.29M |
|
|
ACIA
220
DELISTED
Acacia Communications, Inc. Common Stock
ACIA
| $1.29M | ﹤0.01% |
19,034
-2,321
| -11% | -$157K |
|
|
ITCI
221
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $1.29M | ﹤0.01% |
37,557
-22,654
| -38% | -$777K |
|
222
WIX.com
WIX
$8.52B
| $1.28M | ﹤0.01% |
+10,481
| New | +$1.28M |
|
|
EQM
223
DELISTED
EQM Midstream Partners, LP
EQM
| $1.28M | ﹤0.01% |
+42,854
| New | +$1.28M |
|
224
Spotify
SPOT
$146B
| $1.28M | ﹤0.01% |
8,541
-12,293
| -59% | -$1.84M |
|
225
BioMarin Pharmaceuticals
BMRN
$11.1B
| $1.27M | ﹤0.01% |
15,063
+7,688
| +104% | +$650K |
|