Why is AU Small Finance falling/rising?

As of 05-Aug, AU Small Finance Bank Ltd's stock price is currently at 743.00, reflecting a decrease of 9.5 points or 1.26%. Today's price summary indicates that the stock has underperformed its sector by 0.91%. In terms of returns, the stock has shown a modest increase of 0.39% over the past week, but it has declined by 9.21% over the last month. Despite these short-term challenges, the company has demonstrated strong long-term fundamentals, with a return on assets (ROA) of 1.91% and significant growth in net interest income and net profit. Additionally, the bank has reported positive results for the last five consecutive quarters, which has contributed to high institutional holdings at 66.56%, indicating confidence from larger investors.
Broader market context shows that while AU Small Finance Bank has generated a return of 17.84% over the past year, this is significantly higher than the broader market's performance, which has only seen a return of 2.48%. However, the stock's recent decline may be attributed to its expensive valuation, with a price-to-book ratio of 3.2, which could deter some investors despite its strong fundamentals. The stock's performance in the short term, particularly its underperformance relative to the sector, suggests that market sentiment may be cautious, potentially influenced by broader market trends that have seen the benchmark index, Sensex, decline by 0.77% over the past week.