After major good news is announced, if the key dense zone for market-making by the main players is broken again, it will quickly drop to the next key support level. Take a close look at the chart. Good news turning into bad news, bad news turning into good news. Trend reference method: If the key dense zone is broken upwards, look for the next dense zone to go long. If the key dense zone is broken downwards, look for the next dense zone to go short (and it will drop rapidly). Zone reference method: For short positions, refer to the upper edge of the dense zone. For long positions, refer to the lower edge of the dense zone. The denser the zone, the more effective the above references.