Why is AU Small Finance falling/rising?

As of 03-Sep, AU Small Finance Bank Ltd's stock price is currently at 714.25, reflecting an increase of 4.25 or 0.6%. The stock has shown a narrow trading range today, with a delivery volume that has risen significantly, indicating increased investor participation. Despite a recent decline of 4.19% over the past week and 3.66% over the past month, the stock has performed well year-to-date with a return of 27.98%. The company has demonstrated strong long-term fundamentals, including a high Return on Assets (ROA) of 1.91% and consistent growth in Net Interest Income and net profit. Additionally, the bank 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 outperformed the benchmark Sensex, which has seen a slight decline of 0.27% over the past week and 0.04% over the past month, it has still managed to generate a positive return of 5.90% over the last year, contrasting with the negative performance of the BSE500. The high institutional holdings at 66.56% suggest that knowledgeable investors are backing the stock, further supporting its price movement. However, the stock's valuation remains a concern with a Price to Book Value of 3.1, indicating it may be considered expensive compared to its peers. Overall, the combination of strong fundamentals and positive investor sentiment appears to be driving the recent rise in the stock price.