Pfizer shares gain on coronavirus vaccine

During Monday, November 9, shares of the US pharmaceutical corporation Pfizer jumped 15.17%.  

It is likely that the surge was driven by an announcement that the company's experimental COVID-19 vaccine was more than 90% effective. 

Note that Pfizer and its German partner BioNTech SE are the first pharmaceutical companies to release successful data from a large-scale clinical trial of a coronavirus vaccine.