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 | |
|---|---|---|---|---|---|---|
1176
Digimarc
DMRC
$204M
| $81K | ﹤0.01% |
3,650
+3,465
| +1,873% | +$76.9K |
|
1177
TTM Technologies
TTMI
$4.83B
| $81K | ﹤0.01% |
7,174
-25,600
| -78% | -$289K |
|
|
PENG
1178
Penguin Solutions, Inc. Ordinary Shares
PENG
$1.36B
| $81K | ﹤0.01% |
+5,960
| New | +$81K |
|
|
ONDK
1179
DELISTED
On Deck Capital, Inc.
ONDK
| $81K | ﹤0.01% |
50,900
+24,644
| +94% | +$39.2K |
|
1180
Delek US
DK
$1.68B
| $80K | ﹤0.01% |
7,259
+6,021
| +486% | +$66.4K |
|
|
GB
1181
DELISTED
Global Blue Group Holding
GB
| $80K | ﹤0.01% |
+11,570
| New | +$80K |
|
1182
Star Bulk Carriers
SBLK
$2.2B
| $80K | ﹤0.01% |
+11,659
| New | +$80K |
|
1183
Sonoco
SON
$4.71B
| $80K | ﹤0.01% |
+1,570
| New | +$80K |
|
1184
Vanguard Consumer Staples ETF
VDC
$7.61B
| $80K | ﹤0.01% |
495
+247
| +100% | +$39.9K |
|
|
TMX
1185
DELISTED
Terminix Global Holdings, Inc.
TMX
| $80K | ﹤0.01% |
+2,025
| New | +$80K |
|
1186
AppFolio
APPF
$9.9B
| $79K | ﹤0.01% |
560
-329
| -37% | -$46.4K |
|
1187
Culp
CULP
$59.5M
| $79K | ﹤0.01% |
6,404
+6,104
| +2,035% | +$75.3K |
|
1188
Jones Lang LaSalle
JLL
$14.8B
| $79K | ﹤0.01% |
+831
| New | +$79K |
|
1189
Global X Lithium & Battery Tech ETF
LIT
$1.14B
| $79K | ﹤0.01% |
1,988
-8,530
| -81% | -$339K |
|
1190
Liquidity Services
LQDT
$849M
| $79K | ﹤0.01% |
10,599
+3,997
| +61% | +$29.8K |
|
1191
Invesco Golden Dragon China ETF
PGJ
$157M
| $79K | ﹤0.01% |
1,511
-792
| -34% | -$41.4K |
|
|
TGI
1192
DELISTED
Triumph Group
TGI
| $79K | ﹤0.01% |
12,164
-24,763
| -67% | -$161K |
|
|
SP
1193
DELISTED
SP Plus Corporation
SP
| $79K | ﹤0.01% |
+4,404
| New | +$79K |
|
|
WBT
1194
DELISTED
Welbilt, Inc.
WBT
| $79K | ﹤0.01% |
12,859
-27,488
| -68% | -$169K |
|
1195
Regis Corp
RGS
$70.8M
| $78K | ﹤0.01% |
641
+430
| +204% | +$52.3K |
|
|
AVID
1196
DELISTED
Avid Technology Inc
AVID
| $78K | ﹤0.01% |
9,162
-20,822
| -69% | -$177K |
|
|
UNVR
1197
DELISTED
Univar Solutions Inc.
UNVR
| $78K | ﹤0.01% |
+4,645
| New | +$78K |
|
1198
First Trust NYSE Arca Biotechnology Index Fund
FBT
$1.07B
| $77K | ﹤0.01% |
495
+262
| +112% | +$40.8K |
|
|
HEES
1199
DELISTED
H&E Equipment Services
HEES
| $77K | ﹤0.01% |
3,939
-1,680
| -30% | -$32.8K |
|
1200
Kayne Anderson Energy Infrastructure Fund
KYN
$2.06B
| $77K | ﹤0.01% |
19,354
+5,824
| +43% | +$23.2K |
|