Efficient Market Hypothesis (EMH) is a market thesis is a market hypothesis taught in higher education that suggests that equity markets are efficient, are a zero-sum game, and are “priced to perfection” – leaving no room for excess profits. However, investors do not need to look very far to debunk the faulty hypothesis. GameStop & Meme Stock Mania: Markets Not Efficient GameStop ((GME) was up more than 50% this morning after Internet personality “Roaring Kitty” tweeted Sunday night that he owns over $100 m ...