HK Stock Short Selling

Short selling is the most basic way to take a short position on a HK stock, and is the opposite of going long. When an investor doesn't hold a particular stock but believes its price will fall, they can pledge cash or securities in their account as collateral, borrow the stock from a broker, and sell it. When the price falls, they buy back the same quantity of the stock at the lower price and return it to the broker, profiting from the difference between the higher sell price and the lower buy price.

Because the shares an investor sells are borrowed from the broker, interest must be paid to the broker (accruing from T+2 of the short sale trade).

The short-selling rate for individual HK stocks is dynamic. It adjusts based on the stock's risk level, liquidity, and how easy it is to borrow (i.e., how many shares are available to lend). When a stock is highly volatile or heavily shorted, the borrowing rate rises and can sometimes exceed 100%. Generally, when a stock's price is stable and there is ample supply in the lending pool, the rate stays relatively low and stable.