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 | |
|---|---|---|---|---|---|---|
176
Varonis Systems
VRNS
$6.28B
| $2.45M | ﹤0.01% |
44,934
+41,235
| +1,115% | +$2.25M |
|
177
WEX
WEX
$5.87B
| $2.45M | ﹤0.01% |
+12,015
| New | +$2.45M |
|
178
Sonos
SONO
$1.78B
| $2.43M | ﹤0.01% |
104,060
+29,856
| +40% | +$698K |
|
179
Invesco CurrencyShares Swiss Franc Trust
FXF
$377M
| $2.39M | ﹤0.01% |
+23,251
| New | +$2.39M |
|
|
KL
180
DELISTED
Kirkland Lake Gold Ltd Ordinary
KL
| $2.38M | ﹤0.01% |
57,706
+22,514
| +64% | +$929K |
|
181
AngloGold Ashanti
AU
$30.2B
| $2.37M | ﹤0.01% |
104,962
+25,149
| +32% | +$569K |
|
182
Cedar Fair
FUN
$2.53B
| $2.37M | ﹤0.01% |
+60,157
| New | +$2.37M |
|
183
iShares MSCI Taiwan ETF
EWT
$6.25B
| $2.36M | ﹤0.01% |
+44,483
| New | +$2.36M |
|
|
PXD
184
DELISTED
Pioneer Natural Resource Co.
PXD
| $2.36M | ﹤0.01% |
+20,682
| New | +$2.36M |
|
185
Regeneron Pharmaceuticals
REGN
$60.8B
| $2.35M | ﹤0.01% |
4,860
+251
| +5% | +$121K |
|
186
Advanced Micro Devices
AMD
$245B
| $2.34M | ﹤0.01% |
+25,565
| New | +$2.34M |
|
187
iShares Gold Trust
IAU
$52.6B
| $2.34M | ﹤0.01% |
64,664
+22,132
| +52% | +$802K |
|
|
188
TSMC
TSM
$1.26T
| $2.33M | ﹤0.01% |
21,334
-453,818
| -96% | -$49.5M |
|
|
BLUE
189
DELISTED
bluebird bio
BLUE
| $2.32M | ﹤0.01% |
4,146
+1,649
| +66% | +$924K |
|
190
VanEck Oil Services ETF
OIH
$880M
| $2.32M | ﹤0.01% |
15,072
-6,512
| -30% | -$1M |
|
191
Enphase Energy
ENPH
$5.18B
| $2.32M | ﹤0.01% |
13,202
-14,821
| -53% | -$2.6M |
|
|
SBNY
192
DELISTED
Signature Bank
SBNY
| $2.26M | ﹤0.01% |
+16,707
| New | +$2.26M |
|
193
Avis
CAR
$5.5B
| $2.26M | ﹤0.01% |
60,525
+48,056
| +385% | +$1.79M |
|
194
L3Harris
LHX
$51B
| $2.25M | ﹤0.01% |
11,894
-3,012
| -20% | -$569K |
|
195
Capri Holdings
CPRI
$2.53B
| $2.25M | ﹤0.01% |
+53,495
| New | +$2.25M |
|
|
QIWI
196
DELISTED
QIWI PLC
QIWI
| $2.24M | ﹤0.01% |
217,642
+163,140
| +299% | +$1.68M |
|
197
iShares Russell 1000 Value ETF
IWD
$63.5B
| $2.22M | ﹤0.01% |
16,225
-6,446
| -28% | -$881K |
|
198
IAC Inc
IAC
$2.98B
| $2.21M | ﹤0.01% |
21,372
-14,507
| -40% | -$1.5M |
|
199
American International
AIG
$43.9B
| $2.2M | ﹤0.01% |
58,085
-127,462
| -69% | -$4.83M |
|
200
Invesco CurrencyShares British Pound Sterling Trust
FXB
$90.8M
| $2.19M | ﹤0.01% |
16,593
+808
| +5% | +$107K |
|