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
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
776
LPL Financial
LPLA
$27.8B
| $210K | ﹤0.01% |
973
-482
| -33% | -$104K |
|
777
ProFrac Holding
ACDC
$698M
| $208K | ﹤0.01% |
+8,292
| New | +$208K |
|
|
QVCGA
778
QVC Group, Inc. Series A Common Stock
QVCGA
$87.4M
| $208K | ﹤0.01% |
2,563
+456
| +22% | +$37K |
|
779
Cooper-Standard Automotive
CPS
$689M
| $207K | ﹤0.01% |
22,897
+4,956
| +28% | +$44.8K |
|
780
Owens & Minor
OMI
$423M
| $207K | ﹤0.01% |
+10,615
| New | +$207K |
|
781
Tradeweb Markets
TW
$25.5B
| $207K | ﹤0.01% |
3,192
-8,683
| -73% | -$563K |
|
782
Viper Energy
VNOM
$6.58B
| $207K | ﹤0.01% |
6,526
-2,290
| -26% | -$72.6K |
|
783
WisdomTree Emerging Markets SmallCap Dividend Fund
DGS
$1.68B
| $206K | ﹤0.01% |
4,704
+3,885
| +474% | +$170K |
|
|
SVM
784
Silvercorp Metals
SVM
$1.13B
| $206K | ﹤0.01% |
69,723
-13,451
| -16% | -$39.7K |
|
785
Catalyst Pharmaceutical
CPRX
$2.48B
| $204K | ﹤0.01% |
11,001
+2,925
| +36% | +$54.2K |
|
786
Delek Logistics
DKL
$2.38B
| $204K | ﹤0.01% |
4,517
-10,555
| -70% | -$477K |
|
|
CBIO
787
Crescent Biopharma, Inc. Common Stock
CBIO
$174M
| $204K | ﹤0.01% |
676
+654
| +2,973% | +$197K |
|
|
HIVE
788
HIVE Digital Technologies
HIVE
$776M
| $202K | ﹤0.01% |
140,349
+104,079
| +287% | +$150K |
|
789
Lindsay Corp
LNN
$1.53B
| $201K | ﹤0.01% |
+1,239
| New | +$201K |
|
790
MasTec
MTZ
$14.9B
| $201K | ﹤0.01% |
+2,357
| New | +$201K |
|
791
Elastic
ESTC
$9.46B
| $200K | ﹤0.01% |
3,890
-3,031
| -44% | -$156K |
|
792
Paymentus
PAY
$4.12B
| $200K | ﹤0.01% |
25,029
+6,657
| +36% | +$53.2K |
|
793
Aspen Aerogels
ASPN
$560M
| $199K | ﹤0.01% |
16,919
-330
| -2% | -$3.88K |
|
794
Bath & Body Works
BBWI
$5.75B
| $199K | ﹤0.01% |
4,746
-28,991
| -86% | -$1.22M |
|
795
Direxion Daily CSI China Internet Index Bull 2X Shares
CWEB
$366M
| $199K | ﹤0.01% |
3,917
-12,950
| -77% | -$658K |
|
796
Grifois
GRFS
$6.83B
| $199K | ﹤0.01% |
23,482
+22,347
| +1,969% | +$189K |
|
797
Spectrum Brands
SPB
$1.33B
| $199K | ﹤0.01% |
+3,269
| New | +$199K |
|
798
Ascendis Pharma
ASND
$12B
| $197K | ﹤0.01% |
+1,617
| New | +$197K |
|
799
Global X Robotics & Artificial Intelligence ETF
BOTZ
$2.9B
| $197K | ﹤0.01% |
9,598
+8,825
| +1,142% | +$181K |
|
800
Donnelley Financial Solutions
DFIN
$1.54B
| $196K | ﹤0.01% |
5,084
+5,012
| +6,961% | +$193K |
|