I came across the following question:
Kumar has 100 shares of ABC Co. which he bought at $ 50. The current market price is $ 140. Illustrate how Kumar using short selling can safeguard or protect his total investment from a drop in the share price.
I don't understand how to use short selling in this instance since the purchase has already been made. As I know, short selling works by selling now and buying later.
Any ideas?