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 | |
|---|---|---|---|---|---|---|
|
EBIX
801
DELISTED
Ebix Inc
EBIX
| $193K | ﹤0.01% |
14,688
-5,830
| -28% | -$76.6K |
|
802
Grifois
GRFS
$6.7B
| $192K | ﹤0.01% |
26,180
+2,698
| +11% | +$19.8K |
|
803
GE Aerospace
GE
$301B
| $191K | ﹤0.01% |
2,506
-704
| -22% | -$53.7K |
|
804
Infosys
INFY
$70.4B
| $191K | ﹤0.01% |
10,979
-188,902
| -95% | -$3.29M |
|
805
Schwab Emerging Markets Equity ETF
SCHE
$11B
| $191K | ﹤0.01% |
7,791
+1,191
| +18% | +$29.2K |
|
806
3D Systems Corporation
DDD
$272M
| $190K | ﹤0.01% |
+17,761
| New | +$190K |
|
807
Edgewell Personal Care
EPC
$1.01B
| $190K | ﹤0.01% |
+4,486
| New | +$190K |
|
808
Sandstorm Gold
SAND
$3.4B
| $190K | ﹤0.01% |
32,870
+27,697
| +535% | +$160K |
|
809
Vicor
VICR
$2.25B
| $190K | ﹤0.01% |
+4,067
| New | +$190K |
|
810
Nokia
NOK
$24.6B
| $189K | ﹤0.01% |
38,585
-108,872
| -74% | -$533K |
|
811
Invesco Golden Dragon China ETF
PGJ
$153M
| $189K | ﹤0.01% |
6,376
-5,739
| -47% | -$170K |
|
812
Cellebrite
CLBT
$4.18B
| $188K | ﹤0.01% |
30,945
-26,322
| -46% | -$160K |
|
813
Mersana Therapeutics
MRSN
$36.7M
| $187K | ﹤0.01% |
1,822
+1,698
| +1,369% | +$174K |
|
814
Cavco Industries
CVCO
$4.28B
| $186K | ﹤0.01% |
+588
| New | +$186K |
|
815
Lifecore Biomedical
LFCR
$262M
| $186K | ﹤0.01% |
49,401
+38,527
| +354% | +$145K |
|
816
Ribbon Communications
RBBN
$699M
| $186K | ﹤0.01% |
54,558
+54,549
| +606,100% | +$186K |
|
817
Amplify Alternative Harvest ETF
MJ
$178M
| $185K | ﹤0.01% |
4,401
+1,284
| +41% | +$54K |
|
818
RCI Hospitality Holdings
RICK
$295M
| $185K | ﹤0.01% |
2,378
-10,615
| -82% | -$826K |
|
|
GOL
819
DELISTED
Gol Linhas Aéreas Inteligentes S.A. American Depositary Shares (Each representing Ten Preferred Shares)
GOL
| $185K | ﹤0.01% |
70,651
+50,089
| +244% | +$131K |
|
820
Teucrium Sugar Fund
CANE
$12.5M
| $184K | ﹤0.01% |
16,247
-14,986
| -48% | -$170K |
|
821
WisdomTree Emerging Markets SmallCap Dividend Fund
DGS
$1.67B
| $183K | ﹤0.01% |
4,006
-698
| -15% | -$31.9K |
|
822
ProQR Therapeutics
PRQR
$237M
| $183K | ﹤0.01% |
86,152
+50,787
| +144% | +$108K |
|
823
UDR
UDR
$12.7B
| $182K | ﹤0.01% |
+4,438
| New | +$182K |
|
824
iShares Russell 2000 Growth ETF
IWO
$12.5B
| $181K | ﹤0.01% |
800
| – | – |
|
825
Synaptics
SYNA
$2.67B
| $181K | ﹤0.01% |
1,635
+1,569
| +2,377% | +$174K |
|