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 |
Advanced Micro Devices
AMD
|
$17.7M |
| 2 |
NVIDIA
NVDA
|
$11.3M |
| 3 |
iShares MSCI EAFE ETF
EFA
|
$10.1M |
| 4 |
NIO
NIO
|
$7.66M |
| 5 |
Alibaba
BABA
|
$7.54M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
$15.2M |
| 2 |
Amazon
AMZN
|
$9.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$8.76M |
| 4 |
Technology Select Sector SPDR Fund
XLK
|
$7.41M |
| 5 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$5.3M |
Sector Composition
| 1 | Technology | 18.66% |
| 2 | Consumer Discretionary | 14.99% |
| 3 | Communication Services | 10.06% |
| 4 | Healthcare | 9.68% |
| 5 | Financials | 9.59% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
BBBY
126
DELISTED
Bed Bath & Beyond Inc
BBBY
| $5.04M | ﹤0.01% | 154,438 +4,745 | +3% | +$155K |
|
127
Royal Caribbean
RCL
$98.7B
| $4.98M | ﹤0.01% | 57,959 +125 | +0.2% | +$10.7K |
|
128
International Paper
IP
$26.2B
| $4.93M | ﹤0.01% | 80,200 -1,343 | -2% | -$82.6K |
|
129
Exxon Mobil
XOM
$487B
| $4.93M | ﹤0.01% | 77,898 +54,412 | +232% | +$3.44M |
|
130
Olo Inc
OLO
$1.74B
| $4.91M | ﹤0.01% | +143,230 | New | +$4.91M |
|
131
Lam Research
LRCX
$127B
| $4.85M | ﹤0.01% | 7,659 -600 | -7% | -$380K |
|
|
SBNY
132
DELISTED
Signature Bank
SBNY
| $4.83M | ﹤0.01% | 19,322 +200 | +1% | +$50K |
|
|
FTCH
133
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $4.82M | ﹤0.01% | 95,131 -4,266 | -4% | -$216K |
|
134
ASML
ASML
$292B
| $4.81M | ﹤0.01% | 7,087 -422 | -6% | -$287K |
|
135
Direxion Daily Technology Bull 3x Shares
TECL
$3.47B
| $4.79M | ﹤0.01% | 85,943 -140 | -0.2% | -$7.81K |
|
136
CarMax
KMX
$9.21B
| $4.72M | ﹤0.01% | 36,119 -200 | -0.6% | -$26.1K |
|
137
Energy Transfer Partners
ET
$60.8B
| $4.66M | ﹤0.01% | 435,411 -4,900 | -1% | -$52.4K |
|
138
Cboe Global Markets
CBOE
$24.7B
| $4.64M | ﹤0.01% | 39,143 +100 | +0.3% | +$11.8K |
|
139
Tyson Foods
TSN
$20.2B
| $4.6M | ﹤0.01% | 62,339 +2,195 | +4% | +$162K |
|
140
Ford
F
$46.8B
| $4.59M | ﹤0.01% | 307,763 -45,375 | -13% | -$676K |
|
141
Bausch Health
BHC
$2.74B
| $4.59M | ﹤0.01% | 152,562 -1,688 | -1% | -$50.7K |
|
142
SPDR S&P Biotech ETF
XBI
$5.07B
| $4.57M | ﹤0.01% | 33,018 +435 | +1% | +$60.2K |
|
143
VanEck Junior Gold Miners ETF
GDXJ
$6.6B
| $4.55M | ﹤0.01% | 97,515 -5,430 | -5% | -$253K |
|
144
SPDR S&P Regional Banking ETF
KRE
$3.99B
| $4.44M | ﹤0.01% | 67,124 | – | – |
|
145
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$262M
| $4.41M | ﹤0.01% | 152,213 +15,356 | +11% | +$445K |
|
146
PagSeguro Digital
PAGS
$2.62B
| $4.34M | ﹤0.01% | 76,136 -76 | -0.1% | -$4.33K |
|
147
Marsh & McLennan
MMC
$101B
| $4.32M | ﹤0.01% | 30,377 +1,725 | +6% | +$245K |
|
148
Sunrun
RUN
$3.68B
| $4.28M | ﹤0.01% | 76,223 +1,175 | +2% | +$66K |
|
149
GameStop
GME
$10B
| $4.23M | ﹤0.01% | 20,704 -3,352 | -14% | -$685K |
|
150
Cloudflare
NET
$72.7B
| $4.23M | ﹤0.01% | 40,516 -1,094 | -3% | -$114K |
|