Why is AU Small Finance falling/rising?

As of 15-Sep, AU Small Finance Bank Ltd's stock price is currently at 713.75, reflecting an increase of 7.15 or 1.01%. Today's performance indicates a positive trend reversal as the stock has gained after two consecutive days of decline. It has outperformed its sector by 1.16% today, although it is experiencing a decrease in investor participation, with delivery volume falling by 20.24% against the five-day average. Over the past week, the stock has risen by 1.90%, contrasting with a decline of 5.03% over the past month. Despite a slight year-over-year decrease of 0.90%, the stock has shown strong long-term fundamentals, including a high Return on Assets (ROA) of 1.91% and significant growth in net interest income and profit. Additionally, institutional holdings have increased, suggesting confidence from larger investors.
In the broader market context, AU Small Finance Bank's short-term return of 1.90% over the past week outpaces the Sensex's return of 1.24%, indicating a relative strength in its performance. While the stock has faced challenges in the past month, its year-to-date return of 27.89% significantly exceeds the Sensex's 4.67%, showcasing its strong long-term growth potential. However, the stock's valuation remains a concern, with a Price to Book Value of 3.1, which some may view as expensive despite the company's rising profits. Overall, the combination of strong fundamentals and recent positive performance has contributed to the stock's upward movement.