The thing to understand about shorting is that your losses have no upper bounds. You short a stock at $100 and it goes up to $1,000, you now OWE $900. Here's [

The thing to understand about shorting is that your losses have no upper bounds. You short a stock at $100 and it goes up to $1,000, you now OWE $900. Here's [0] a story of a guy going to bed with $30k in his ETrade and waking up to a $106k debt call. [0] https://www.marketwatch.com/story/help-my-short-position-got-crushed-and-now-i-owe-e-trade-10644556-2015-11-19 https://www.marketwatch.com/story/help-my-short-position-got...