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
|
$102M |
| 2 |
TSMC
TSM
|
$29.6M |
| 3 |
JPMorgan Chase
JPM
|
$21.9M |
| 4 |
Boeing
BA
|
$18.8M |
| 5 |
Target
TGT
|
$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
$94.2M |
| 2 |
Tesla
TSLA
|
$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
$81.5M |
| 4 |
NVIDIA
NVDA
|
$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
101
iShares Select Dividend ETF
DVY
$20.6B
| $3.38M | ﹤0.01% |
41,471
+40,668
| +5,065% | +$3.32M |
|
102
ProShares UltraPro S&P 500
UPRO
$4.43B
| $3.36M | ﹤0.01% |
60,085
-100,223
| -63% | -$5.6M |
|
103
US Global Jets ETF
JETS
$849M
| $3.3M | ﹤0.01% |
195,326
+140,452
| +256% | +$2.37M |
|
104
Novavax
NVAX
$1.2B
| $3.27M | ﹤0.01% |
+30,200
| New | +$3.27M |
|
105
Kohl's
KSS
$1.78B
| $3.26M | ﹤0.01% |
176,035
+141,585
| +411% | +$2.62M |
|
106
Datadog
DDOG
$46.2B
| $3.11M | ﹤0.01% |
30,418
-12,011
| -28% | -$1.23M |
|
|
PARA
107
DELISTED
Paramount Global Class B
PARA
| $3.09M | ﹤0.01% |
110,229
+40,118
| +57% | +$1.12M |
|
108
Restaurant Brands International
QSR
$20.5B
| $3.08M | ﹤0.01% |
+53,569
| New | +$3.08M |
|
109
Pool Corp
POOL
$11.4B
| $3.07M | ﹤0.01% |
9,164
+8,654
| +1,697% | +$2.89M |
|
110
Pinterest
PINS
$25.2B
| $3.06M | ﹤0.01% |
73,679
-168,874
| -70% | -$7.01M |
|
111
Applied Materials
AMAT
$124B
| $2.97M | ﹤0.01% |
+50,014
| New | +$2.97M |
|
112
Equity Residential
EQR
$24.7B
| $2.95M | ﹤0.01% |
57,453
+48,247
| +524% | +$2.48M |
|
113
Colgate-Palmolive
CL
$67.7B
| $2.92M | ﹤0.01% |
37,829
+35,761
| +1,729% | +$2.76M |
|
114
Adobe
ADBE
$148B
| $2.89M | ﹤0.01% |
+5,896
| New | +$2.89M |
|
115
Occidental Petroleum
OXY
$45.6B
| $2.86M | ﹤0.01% |
+286,122
| New | +$2.86M |
|
116
Stanley Black & Decker
SWK
$11.3B
| $2.81M | ﹤0.01% |
+17,345
| New | +$2.81M |
|
117
Capital One
COF
$142B
| $2.81M | ﹤0.01% |
39,086
-32,310
| -45% | -$2.32M |
|
118
Intel
INTC
$105B
| $2.8M | ﹤0.01% |
+54,054
| New | +$2.8M |
|
119
Delta Air Lines
DAL
$40B
| $2.78M | ﹤0.01% |
90,913
+27,287
| +43% | +$834K |
|
120
Lumentum
LITE
$9.37B
| $2.78M | ﹤0.01% |
36,967
-5,389
| -13% | -$405K |
|
|
ZEN
121
DELISTED
ZENDESK INC
ZEN
| $2.74M | ﹤0.01% |
26,660
-7,425
| -22% | -$764K |
|
122
BioMarin Pharmaceuticals
BMRN
$11.3B
| $2.74M | ﹤0.01% |
35,999
+10,749
| +43% | +$818K |
|
|
ZNGA
123
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
| $2.74M | ﹤0.01% |
300,081
+211,179
| +238% | +$1.93M |
|
124
McDonald's
MCD
$226B
| $2.71M | ﹤0.01% |
12,352
-9,315
| -43% | -$2.04M |
|
125
Invesco S&P 500 Equal Weight ETF
RSP
$73.5B
| $2.69M | ﹤0.01% |
+24,848
| New | +$2.69M |
|