Why is AU Small Finance falling/rising?

As of 19-Sep, AU Small Finance Bank Ltd's stock price is currently at 717.80, reflecting a decrease of 2.05, or 0.28%. The stock has shown a mixed performance recently, with a 1-week return of +1.59%, but it has declined by 5.30% over the past month. Today's price summary indicates that the stock outperformed its sector by 0.61%, although it is trading lower than its 20-day, 50-day, and 100-day moving averages. Additionally, there has been a decline in investor participation, with delivery volume falling by 5.02% compared to the 5-day average. Despite strong long-term fundamentals, including a high Capital Adequacy Ratio and consistent profit growth, the stock's expensive valuation and recent underperformance against benchmarks may be contributing to its current price decline.
In the broader market context, the stock's short-term performance has outpaced the Sensex, which has increased by 0.88% over the same week. However, the stock's longer-term returns have been less favorable, with a -4.01% return over the past year compared to a -0.67% decline in the Sensex. This consistent underperformance against the benchmark over the last three years may be influencing investor sentiment negatively, despite the positive indicators such as high institutional holdings and strong earnings growth. Overall, while there are positive factors supporting the stock, the combination of valuation concerns and historical underperformance appears to be weighing on its price movement.