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 | |
|---|---|---|---|---|---|---|
126
iShares Russell 1000 Value ETF
IWD
$63.7B
| $2.68M | ﹤0.01% |
+22,671
| New | +$2.68M |
|
127
Wayfair
W
$10.7B
| $2.64M | ﹤0.01% |
9,078
+8,828
| +3,531% | +$2.57M |
|
128
Planet Fitness
PLNT
$8.64B
| $2.61M | ﹤0.01% |
+42,422
| New | +$2.61M |
|
|
ABMD
129
DELISTED
Abiomed Inc
ABMD
| $2.59M | ﹤0.01% |
9,354
+2,242
| +32% | +$621K |
|
130
Lyft
LYFT
$6.97B
| $2.58M | ﹤0.01% |
93,712
-24,540
| -21% | -$676K |
|
131
Regeneron Pharmaceuticals
REGN
$60.1B
| $2.58M | ﹤0.01% |
4,609
-1,701
| -27% | -$952K |
|
132
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$300M
| $2.55M | ﹤0.01% |
162,519
+34,450
| +27% | +$541K |
|
133
Toll Brothers
TOL
$14B
| $2.54M | ﹤0.01% |
+52,146
| New | +$2.54M |
|
134
L3Harris
LHX
$51.1B
| $2.53M | ﹤0.01% |
14,906
-4,902
| -25% | -$832K |
|
135
Waste Management
WM
$90.6B
| $2.49M | ﹤0.01% |
22,026
-3,963
| -15% | -$448K |
|
136
Thermo Fisher Scientific
TMO
$185B
| $2.47M | ﹤0.01% |
5,594
+3,670
| +191% | +$1.62M |
|
|
AYX
137
DELISTED
Alteryx, Inc.
AYX
| $2.47M | ﹤0.01% |
21,741
+9,918
| +84% | +$1.13M |
|
138
ProShares UltraPro QQQ
TQQQ
$26.7B
| $2.43M | ﹤0.01% |
74,340
-448,808
| -86% | -$14.7M |
|
139
Direxion Daily Financial Bull 3x Shares
FAS
$2.74B
| $2.42M | ﹤0.01% |
71,479
+35,266
| +97% | +$1.19M |
|
140
BP
BP
$88.4B
| $2.42M | ﹤0.01% |
138,459
-145,190
| -51% | -$2.53M |
|
141
Dropbox
DBX
$7.94B
| $2.38M | ﹤0.01% |
123,750
+107,662
| +669% | +$2.07M |
|
142
iShares S&P 500 Growth ETF
IVW
$63.7B
| $2.38M | ﹤0.01% |
+41,200
| New | +$2.38M |
|
143
QuidelOrtho
QDEL
$1.89B
| $2.36M | ﹤0.01% |
10,739
+4,970
| +86% | +$1.09M |
|
144
IAC Inc
IAC
$2.95B
| $2.35M | ﹤0.01% |
35,879
+28,213
| +368% | +$1.84M |
|
145
Direxion Daily Gold Miners Index Bull 2X Shares
NUGT
$803M
| $2.32M | ﹤0.01% |
27,406
-41,723
| -60% | -$3.54M |
|
146
Enphase Energy
ENPH
$4.78B
| $2.31M | ﹤0.01% |
28,023
-82,283
| -75% | -$6.79M |
|
147
Viatris
VTRS
$12B
| $2.3M | ﹤0.01% |
155,114
+129,788
| +512% | +$1.92M |
|
148
Simon Property Group
SPG
$59.3B
| $2.29M | ﹤0.01% |
+35,421
| New | +$2.29M |
|
149
WIX.com
WIX
$8.19B
| $2.28M | ﹤0.01% |
+8,961
| New | +$2.28M |
|
150
Vanguard Dividend Appreciation ETF
VIG
$95.7B
| $2.27M | ﹤0.01% |
17,673
+5,442
| +44% | +$700K |
|