3D Systems and Stratasys soared
According to Piper Jaffray,” upgraded shares of both Stratasys and 3D Systems from neutral to overweight. Shares of Stratasys (NASDAQ: SSYS) and 3D Systems”.
https://finance.yahoo.com/news/why-three-3d-printing-stocks-172100191.html
https://www.spglobal.com/marketintelligence/en/index
https://www.fool.com/investing/2019/01/29/why-3d-printing-stocks-jumped-today.aspx