When the fund breaks through the 20-day line, it means that the trend of the fund in the market breaks through the 20-day moving average, which makes the suppression of the 20-day moving average invalid, and the fund may continue to rise and hit a new high. This is a buying signal, and short-term investors can buy some in moderation.

Conversely, falling below the 20-day moving average means that the fund price falls. Running above the 20-day moving average and below it means that the supporting role of the 20-day moving average is invalid and becomes a pressure role, and the fund price may continue to fall. This is a selling signal.