After-hours buzz: Activision Blizzard, TripAdvisor, Akamai & more By: CNBC.com News February 12, 2019 at 17:09 PM EST See which stocks are posting big moves after the bell on February 12. Read More >> Related Stocks: Activision Blizzard Akamai Technologies Groupon Cl A Symantec Corp TripAdvisor Twilio