Hang Seng etf tracks Hang Seng Index and buys some or all shares of Hang Seng Index to obtain the same income as Hang Seng Index. When the Hang Seng Index rises, the Hang Seng etf has a high probability of rising, and when the Hang Seng Index falls, the Hang Seng etf has a high probability of falling. The code of Shanghai Hang Seng etf is 159920, and that of Shenzhen Hang Seng etf is 5 13660.