Regeneron widens its lead as the S&P 500's top performer after saying key COVID-19 drug may be available in the fall (REGN)

11:46am PDT - May 5th, 2020    astrazeneca - Business Insider

Reuters/ Mike Segar

• Regeneron Pharmaceuticals on Tuesday reported solid first quarter earnings and announced its key COVID-19 drug may be available in the fall. 
• Shares surged 7% Tuesday, advancing the company's position as the top performin…