Why is Sundaram Finance falling/rising?

As of 01-Sep, Sundaram Finance Ltd is experiencing a decline in its stock price, currently at 4,446.00, which reflects a decrease of 49.4 or 1.1%. The stock has been underperforming, having lost 15.67% over the last five days and is trading below its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages. Additionally, the delivery volume has significantly decreased by 72.85% compared to the 5-day average, indicating falling investor participation. Despite having a strong long-term fundamental strength with an average Return on Equity (ROE) of 13.90% and high institutional holdings at 26.63%, the stock's recent performance is negatively impacted by flat results in June and an expensive valuation with a Price to Book Value of 3.7.
In the broader market context, Sundaram Finance's short-term performance has been notably worse than the benchmark Sensex, which has only declined by 1.56% over the past week compared to the stock's 10.17% drop. This underperformance is further highlighted by the stock's year-to-date return of 7.00%, which, while positive, is overshadowed by a significant 11.55% decline over the past year. The company's profits have increased by 22.9% during this time, but the stock's negative returns and high valuation metrics suggest that investors may be cautious, leading to the current downward trend.