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 |
AMC Entertainment Holdings
AMC
|
$84.2M |
| 2 |
NVIDIA
NVDA
|
$35.3M |
| 3 |
AT&T
T
|
$28.5M |
| 4 |
Micron Technology
MU
|
$23.1M |
| 5 |
Baidu
BIDU
|
$22.7M |
Top Sells
| 1 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
$38.7M |
| 2 |
Palantir
PLTR
|
$29.3M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$26.2M |
| 4 |
PARA
Paramount Global Class B
PARA
|
$21.7M |
| 5 |
Exxon Mobil
XOM
|
$18M |
Sector Composition
| 1 | Technology | 17.69% |
| 2 | Consumer Discretionary | 14.79% |
| 3 | Communication Services | 10.15% |
| 4 | Healthcare | 9.69% |
| 5 | Financials | 9.42% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
BBBY
126
DELISTED
Bed Bath & Beyond Inc
BBBY
| $4.98M | ﹤0.01% | +149,693 | New | +$4.98M |
|
127
Royal Caribbean
RCL
$98.7B
| $4.93M | ﹤0.01% | 57,834 -31,769 | -35% | -$2.71M |
|
128
Align Technology
ALGN
$10.3B
| $4.92M | ﹤0.01% | 8,059 +8,056 | +268,533% | +$4.92M |
|
129
VanEck Junior Gold Miners ETF
GDXJ
$6.6B
| $4.81M | ﹤0.01% | 102,945 +72,487 | +238% | +$3.39M |
|
130
Direxion Daily Technology Bull 3x Shares
TECL
$3.47B
| $4.79M | ﹤0.01% | 86,083 +26,765 | +45% | +$1.49M |
|
131
Alcoa
AA
$8.33B
| $4.77M | ﹤0.01% | 129,556 +77,004 | +147% | +$2.84M |
|
|
SBNY
132
DELISTED
Signature Bank
SBNY
| $4.7M | ﹤0.01% | +19,122 | New | +$4.7M |
|
133
CarMax
KMX
$9.21B
| $4.69M | ﹤0.01% | 36,319 +22,326 | +160% | +$2.88M |
|
134
Energy Transfer Partners
ET
$60.8B
| $4.68M | ﹤0.01% | 440,311 +161,605 | +58% | +$1.72M |
|
135
Cboe Global Markets
CBOE
$24.7B
| $4.65M | ﹤0.01% | 39,043 +6,035 | +18% | +$718K |
|
136
Schlumberger
SLB
$55B
| $4.61M | ﹤0.01% | 143,877 -69,708 | -33% | -$2.23M |
|
137
Bausch Health
BHC
$2.74B
| $4.52M | ﹤0.01% | 154,250 -15,468 | -9% | -$453K |
|
138
Tyson Foods
TSN
$20.2B
| $4.44M | ﹤0.01% | 60,144 +13,966 | +30% | +$1.03M |
|
139
SPDR S&P Biotech ETF
XBI
$5.07B
| $4.41M | ﹤0.01% | 32,583 +24,792 | +318% | +$3.36M |
|
140
Cloudflare
NET
$72.7B
| $4.4M | ﹤0.01% | +41,610 | New | +$4.4M |
|
141
SPDR S&P Regional Banking ETF
KRE
$3.99B
| $4.4M | ﹤0.01% | +67,124 | New | +$4.4M |
|
142
Comcast
CMCSA
$125B
| $4.35M | ﹤0.01% | 76,214 +49,049 | +181% | +$2.8M |
|
143
PagSeguro Digital
PAGS
$2.62B
| $4.26M | ﹤0.01% | 76,212 +48,151 | +172% | +$2.69M |
|
144
Cassava Sciences
SAVA
$110M
| $4.23M | ﹤0.01% | 49,468 +41,855 | +550% | +$3.58M |
|
145
Sunrun
RUN
$3.68B
| $4.19M | ﹤0.01% | 75,048 +52,324 | +230% | +$2.92M |
|
146
iShares MSCI EAFE ETF
EFA
$66B
| $4.15M | ﹤0.01% | 52,583 +51,569 | +5,086% | +$4.07M |
|
147
Dow Inc
DOW
$17.5B
| $4.15M | ﹤0.01% | +65,512 | New | +$4.15M |
|
148
Skyworks Solutions
SWKS
$11.1B
| $4.14M | ﹤0.01% | 21,574 -17,499 | -45% | -$3.35M |
|
149
Fair Isaac
FICO
$36.5B
| $4.07M | ﹤0.01% | 8,097 -758 | -9% | -$381K |
|
150
TJX Companies
TJX
$152B
| $4.06M | ﹤0.01% | 60,165 +60,085 | +75,106% | +$4.05M |
|