Data as of March 18, 2026, shows that trading volume in the 15 minutes before the US market opened was at its highest level in the past 30 days, significantly higher than the average level of the past 30 days, and generally in a high range, indicating a significant increase in trading volume during the opening phase. At the same time, the momentum of the market rally was at the 97th percentile, significantly higher than the average level of the past 30 days, and generally in a high range, reflecting strong market continuity.