When it comes to gathering information, investors and hedge funds search competitively for highly accurate ways to outsmart the market. Stock events occur when an influential person or group tweets something specifically about a company’s stock. Company events happen when tweets about the company itself are released by prominent news organizations or influential investors. For example, when legendary investor Carl Icahn announced that he had taken a large position in Apple ($AAPL), shares rose more than 4% over the next 24 hours. Telsa stock rose almost 3% on Musk’s tweet about its new semi truck and pickup truck products and has even been known to taunt those who bet against Tesla stock.

Source: Forbes May 21, 2017 15:00 UTC