HK Stock Short Selling

Short selling is the most basic way to short a HK stock. It's the opposite of going long. If you don't hold a stock but expect its price to fall, you can borrow it from a broker and sell it, using the cash or securities in your account as collateral. When the price drops, you buy back the same number of shares at the lower price and return them to the broker. Your profit is the difference between the high sell price and the low buy price.

You borrow the shares you sell from the broker, so you pay the broker interest. Interest starts accruing on T+2 after the short sale is filled.

Borrowing rates for HK stocks are dynamic. A stock's rate adjusts based on its risk level, liquidity, and how easy it is to borrow (the number of shares available to lend). When a stock is highly volatile or too many people are shorting it, the borrowing rate rises, and sometimes it can exceed 100%. Generally, when a stock's price is steady and there are plenty of shares to borrow, the rate is relatively stable and low.