Be Sure to Know -> What Short and Long isLong is when you own shares and expect a rise in a shareprice to your benefit
Short is when you borrow shares that have to be replaced with bought shares on the market and you only benefit when the price drops
Here's what happens when Short traders get caught with a rising shareprice
https://www.marketwatch.com/story/help-my-short-position-got-crushed-and-now-i-owe-e-trade-10644556-2015-11-19