Hong Kong stocks (HK stocks) refer to stocks listed on Main Board and Growth Enterprise Market (GEM) of Hong Kong Exchanges and Clearing Limited (HKEX), including blue chips, red chips and H-shares. In addition to ordinary shares, exchange-traded funds (ETFs) and real estate investment trust (REITs) listed on Main Board or GEM, investors can trade derivative instruments including derivative warrants (DWs), callable bull/bear contracts (CBBCs) and inline warrants (IWs).