Westamerica Bancorporation's 15-min chart shows expanding Bollinger Bands and bullish marubozu.

Based on the 15-minute chart of Westamerica Bancorporation, the Bollinger Bands are expanding upward and a Bullish Marubozu was triggered at 11:15 on March 24, 2026. This indicates that market momentum is being driven by buyers, who have control of the market, and it is likely that bullish trends will continue.