Short selling allows traders to profit from declining stock prices. It involves borrowing shares through securities lending and selling them, with the expectation that the share price will fall so they can be bought back at a lower price. Specifically, a trader who thinks a stock price will decline can short sell it by establishing a market position by selling shares they do not own yet. For example, selling 2000 shares of stock ABC at the current market price, then buying those same 2000 shares back at a reduced price later to return them, pocketing the difference as profit. However, there is risk since prices could rise instead, resulting in losses.