STAAR Surgical (STAA) Shares Skyrocket, What You Need To Know

What Happened? Shares of medical lens company STAAR Surgical NASDAQ:STAAjumped 6.4% in the pre-market session after Stifel upgraded the company from Hold to Buy and lifted its price target to $31.00 from $28.00,StreetInsider reported. Stifel analyst Thomas Stephan wrote in a note to clients that re…