Why is AU Small Finance falling/rising?

As of 18-Sep, AU Small Finance Bank Ltd is experiencing a price increase, currently at 719.85, reflecting a rise of 11.0 or 1.55%. Today's price summary indicates that the stock has outperformed its sector by 0.95% and has reversed a trend of two consecutive days of decline. The stock is currently trading above its 5-day and 200-day moving averages, although it remains below the 20-day, 50-day, and 100-day moving averages. In terms of performance, the stock has seen a 1.32% increase over the past week, but it has declined by 5.51% over the past month. Positive factors contributing to the stock's movement include strong long-term fundamentals, with a Return on Assets (ROA) of 1.91%, significant growth in Net Interest Income and net profit, and a high Capital Adequacy Ratio of 21.50%. Additionally, the company has reported positive results for the last five consecutive quarters, which has likely bolstered investor confidence.
In the broader market context, while the stock has underperformed the benchmark Sensex over the past month, which has increased by 2.14%, it has shown strong year-to-date performance with a return of 28.98% compared to the Sensex's 6.24%. The rising investor participation, indicated by a 48.26% increase in delivery volume, suggests growing interest in the stock, despite its expensive valuation reflected in a Price to Book Value of 3.2. The high institutional holdings at 66.56% further support the stock's stability, as these investors typically have the resources to analyze the company's fundamentals effectively. Overall, the combination of positive earnings reports and increased investor activity appears to be driving the stock's recent upward movement.