Short selling occurs when an investor borrows a security and sells it on the open market, planning to buy it back later for less money. Short sellers bet on, and profit from, a drop in a security’s price. Short selling has a high risk/reward ratio: It can offer big profits, but losses can mount quickly and infinitely.
공매도는 글자 그대로 ‘없는 것을 판다’는 의미이다. 개인 혹은 단체가 주식, 채권 등을 보유하지 않은 상태에서 매도하는 행위를 말한다. 매도한 주식·채권은 결제일 이전에 구매해서 매입자에게 갚아야 한다. 주가하락이 예상되는 시점에 시세차익을 내기 위한 방법이다. 위키백과
In finance, being short in an asset means investing in such a way that the investor will profit if the value of the asset falls. This is the opposite of a more conventional “long” position, where the investor will profit if the value of the asset rises. There are a number of ways of achieving a short position.
One way to make money on stocks for which the price is falling is called short selling (or going short). Short selling is a fairly simple concept—an investor borrows a stock, sells the stock, and then buys the stock back to return it to the lender. Short sellers are betting that the stock they sell will drop in price.
An investor believes that Stock A, which is trading at $100 per share, will decline when the company announces its annual earnings in one week. Therefore, the investor borrows 100 shares from a broker while short selling those shares to the market.