If it is a Nasdaq ETF purchased in the market, the trading time is the same as that of domestic stocks. After buying on the same day, you can sell on the same day and implement T+0 trading.

If it is a Nasdaq OTC fund, it belongs to QDII fund. It generally takes T+2 days for a fund company to confirm its share. After the share is determined, the holding days can be calculated according to the natural day.