Stocks or other securities that you have sold when you did not own them. To do this, you must borrow the stock. Traders create a short position if they think the price will go down.
Our users typically create two stock lists, one for all of their long positions, and one for their short positions. The alerts server will show bullish alerts for each of the user’s short positions, so the user will know if one of his stocks is moving in the wrong direction.