Pokemon Go, A Cautionary Tale By Young Research - July 25, 2016 Look at what happened to Nintendo shares when management reminded everyone that the company doesn’t own that much of Pokemon Go. Blows a bit of a hole in the semi-strong form efficient market hypothesis doesn’t it? Share this: Click to email a link to a friend (Opens in new window) Email Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook