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 |
Invesco QQQ Trust
QQQ
|
$41.7M |
| 2 |
Mastercard
MA
|
$33.6M |
| 3 |
Alibaba
BABA
|
$33.4M |
| 4 |
Apple
AAPL
|
$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
$60M |
| 2 |
TSMC
TSM
|
$49.5M |
| 3 |
iShares Silver Trust
SLV
|
$26M |
| 4 |
Amazon
AMZN
|
$25.2M |
| 5 |
Boeing
BA
|
$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
201
Vroom, Inc. Common Stock
VRM
$140M
| $2.17M | ﹤0.01% |
661
+229
| +53% | +$751K |
|
202
iShares Mortgage Real Estate ETF
REM
$618M
| $2.16M | ﹤0.01% |
67,687
+31,805
| +89% | +$1.01M |
|
203
Global X Silver Miners ETF NEW
SIL
$2.92B
| $2.15M | ﹤0.01% |
47,183
+7,976
| +20% | +$364K |
|
204
Dollar General
DG
$24.1B
| $2.14M | ﹤0.01% |
10,192
+7,083
| +228% | +$1.49M |
|
205
CRISPR Therapeutics
CRSP
$4.99B
| $2.13M | ﹤0.01% |
+13,933
| New | +$2.13M |
|
206
Fidelity National Information Services
FIS
$35.9B
| $2.13M | ﹤0.01% |
15,037
+5,798
| +63% | +$820K |
|
207
Regenxbio
RGNX
$490M
| $2.12M | ﹤0.01% |
46,632
+46,036
| +7,724% | +$2.09M |
|
208
Digital Realty Trust
DLR
$55.7B
| $2.1M | ﹤0.01% |
+15,027
| New | +$2.1M |
|
209
BioNTech
BNTX
$27B
| $2.07M | ﹤0.01% |
+25,369
| New | +$2.07M |
|
|
XLNX
210
DELISTED
Xilinx Inc
XLNX
| $2.07M | ﹤0.01% |
14,587
+14,087
| +2,817% | +$2M |
|
|
MNDT
211
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $2.06M | ﹤0.01% |
89,519
-10,198
| -10% | -$235K |
|
212
Invesco WilderHill Clean Energy ETF
PBW
$357M
| $2.06M | ﹤0.01% |
19,952
+17,654
| +768% | +$1.82M |
|
213
ARK Autonomous Technology & Robotics ETF
ARKQ
$1.3B
| $2.06M | ﹤0.01% |
26,978
+17,396
| +182% | +$1.33M |
|
214
Flex
FLEX
$20.8B
| $2.05M | ﹤0.01% |
151,504
+135,101
| +824% | +$1.83M |
|
215
American Water Works
AWK
$28B
| $2.04M | ﹤0.01% |
13,312
+2,830
| +27% | +$434K |
|
216
iShares MSCI Singapore ETF
EWS
$805M
| $2.04M | ﹤0.01% |
94,992
+69,695
| +276% | +$1.5M |
|
|
KRA
217
DELISTED
Kraton Corporation
KRA
| $2.03M | ﹤0.01% |
+72,906
| New | +$2.03M |
|
218
Arrowhead Research
ARWR
$4.02B
| $2.02M | ﹤0.01% |
26,313
-17,101
| -39% | -$1.31M |
|
219
Invesco CurrencyShares Japanese Yen Trust
FXY
$562M
| $1.97M | ﹤0.01% |
21,579
+7,120
| +49% | +$651K |
|
220
Asana
ASAN
$3.18B
| $1.97M | ﹤0.01% |
+66,698
| New | +$1.97M |
|
221
General Dynamics
GD
$86.8B
| $1.97M | ﹤0.01% |
+13,213
| New | +$1.97M |
|
222
Invesco S&P 500 Low Volatility ETF
SPLV
$7.99B
| $1.96M | ﹤0.01% |
34,919
+20,083
| +135% | +$1.13M |
|
223
American Express
AXP
$227B
| $1.96M | ﹤0.01% |
+16,170
| New | +$1.96M |
|
224
Rapid7
RPD
$1.32B
| $1.95M | ﹤0.01% |
+21,578
| New | +$1.95M |
|
225
QuidelOrtho
QDEL
$1.95B
| $1.94M | ﹤0.01% |
10,789
+50
| +0.5% | +$8.98K |
|