Hang seng technology ETF is a T 0 transaction. Simply put, Hang Seng ETF can be bought and sold on the same day. ETF is an open-end fund, and Hang Seng refers to Hang Seng Index. Hang Seng ETF refers to a listed open-end fund that replicates the Hang Seng Index. Generally, OTC funds are T 1 trading mode, and the funds bought on the same day can be sold the next day. Therefore, Hang Seng Technology etf can trade t 0.