Why is AU Small Finance falling/rising?

As of 16-Sep, AU Small Finance Bank Ltd's stock price is currently at 710.45, reflecting a decrease of 3.3 or 0.46%. Today's price summary indicates that the stock has underperformed its sector by 0.92%, with a delivery volume that has fallen by 1.53% against the 5-day average. In terms of returns, the stock has shown a 1.86% increase over the past week, but it has declined by 5.47% over the past month. Despite a strong long-term fundamental outlook, including a high Capital Adequacy Ratio and consistent profit growth, the stock's recent performance is hindered by its expensive valuation and a lower return on assets compared to its historical performance.
In the broader market context, the stock's short-term performance has outpaced the benchmark Sensex, which has gained 1.58% over the past week. However, the stock's longer-term returns are less favorable, with a year-to-date increase of 27.30% compared to the Sensex's 5.43%. The recent decline in stock price may be attributed to the falling investor participation and the stock trading below several key moving averages, indicating potential investor caution despite the positive fundamentals and high institutional holdings.