Advantages and Disadvantages

If the seller predicts the price moves correctly, they can make a positive return on investment, primarily if they use margin to initiate the trade. Using margin provides leverage, which means the trader does not need to put up much of their capital as an initial investment. If done carefully, short selling can be an inexpensive hedge, a counterbalance to other portfolio holdings.

A trader who has shorted stock can lose much more than 100% of their original investment. The risk comes because there is no ceiling for a stock’s price. Also, while the stocks were held, the trader had to fund the margin account. When it comes time to close a position, a short seller might have trouble finding enough shares to buy—if many other traders are shorting the stock or the stock is thinly traded.


Conversely, sellers can get caught in a short squeeze loop if the market, or a particular stock, starts to skyrocket. A short squeeze happens when a stock rises, and short sellers cover their trades by buying back their short positions.

Pros
Possibility of high profits

Little initial capital required

Leveraged investments possible

Hedge against other holdings


Cons
Potentially unlimited losses

Margin account necessary

Margin interest incurred

Short squeezes