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 |
Apple
AAPL
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1151
iShares Global Materials ETF
MXI
$230M
| $64K | ﹤0.01% |
772
+279
| +57% | +$23.1K |
|
1152
Steven Madden
SHOO
$2.22B
| $63K | ﹤0.01% |
1,761
-2,168
| -55% | -$77.6K |
|
1153
SiriusPoint
SPNT
$2.18B
| $63K | ﹤0.01% |
7,835
+6,099
| +351% | +$49K |
|
|
PTRA
1154
DELISTED
Proterra Inc. Common Stock
PTRA
| $63K | ﹤0.01% |
42,079
+34,086
| +426% | +$51K |
|
1155
iPath Bloomberg Commodity Index Total Return ETN due 12 June 2036
DJP
$585M
| $62K | ﹤0.01% |
1,992
+913
| +85% | +$28.4K |
|
|
KG
1156
Kestrel Group, Ltd.
KG
$199M
| $62K | ﹤0.01% |
+1,501
| New | +$62K |
|
1157
Semtech
SMTC
$5.29B
| $62K | ﹤0.01% |
+2,591
| New | +$62K |
|
1158
Trustmark
TRMK
$2.42B
| $62K | ﹤0.01% |
+2,518
| New | +$62K |
|
|
FAZE
1159
DELISTED
FaZe Holdings Inc. Common Stock
FAZE
| $62K | ﹤0.01% |
136,659
+123,572
| +944% | +$56.1K |
|
|
CTIC
1160
DELISTED
CTI BioPharma Corp. (DE) Common Stock
CTIC
| $62K | ﹤0.01% |
14,801
-7,688
| -34% | -$32.2K |
|
1161
Carlisle Companies
CSL
$16.2B
| $61K | ﹤0.01% |
274
-1,600
| -85% | -$356K |
|
1162
Paylocity
PCTY
$9.48B
| $61K | ﹤0.01% |
310
-7,899
| -96% | -$1.55M |
|
1163
Talos Energy
TALO
$1.72B
| $61K | ﹤0.01% |
4,160
-2,749
| -40% | -$40.3K |
|
1164
Watts Water Technologies
WTS
$9.29B
| $61K | ﹤0.01% |
+363
| New | +$61K |
|
|
AXNX
1165
DELISTED
Axonics, Inc. Common Stock
AXNX
| $61K | ﹤0.01% |
+1,133
| New | +$61K |
|
|
AMRN
1166
Amarin Corp
AMRN
$310M
| $60K | ﹤0.01% |
2,022
+1,533
| +313% | +$45.5K |
|
1167
Gildan
GIL
$8.23B
| $60K | ﹤0.01% |
+1,810
| New | +$60K |
|
1168
Lazydays
GORV
$8.29M
| $60K | ﹤0.01% |
173
+139
| +409% | +$48.2K |
|
1169
Gold Royalty Corp
GROY
$635M
| $60K | ﹤0.01% |
27,841
+2,740
| +11% | +$5.91K |
|
1170
iShares Expanded Tech-Software Sector ETF
IGV
$10.3B
| $60K | ﹤0.01% |
+1,000
| New | +$60K |
|
1171
Microvast
MVST
$916M
| $60K | ﹤0.01% |
49,113
-23,922
| -33% | -$29.2K |
|
1172
NGL Energy Partners
NGL
$748M
| $60K | ﹤0.01% |
21,015
-27,216
| -56% | -$77.7K |
|
1173
The ONE Group
STKS
$82.3M
| $60K | ﹤0.01% |
7,489
-6,399
| -46% | -$51.3K |
|
1174
Sterling Infrastructure
STRL
$9.62B
| $60K | ﹤0.01% |
+1,597
| New | +$60K |
|
|
WPRT
1175
Westport Fuel Systems
WPRT
$40.9M
| $60K | ﹤0.01% |
6,396
+2,065
| +48% | +$19.4K |
|