Why is Global Health falling/rising?

As of 18-Aug, Global Health Ltd's stock price is currently at 1,343.00, reflecting a decrease of 32.0 points or 2.33%. Today's price summary indicates that the stock has underperformed its sector by 2.61%, with an intraday low of Rs 1332.15, which is a decline of 3.12%. The stock's performance over the past week shows a decline of 2.96%, while it has gained 1.94% over the past month. Despite a strong year-to-date return of 24.00% and a one-year return of 20.15%, the stock's recent movement is affected by falling investor participation, as evidenced by an 18.41% drop in delivery volume compared to the five-day average. Additionally, while the company boasts a high return on equity and low debt-to-equity ratio, its valuation appears expensive compared to peers, which may be contributing to the stock's downward pressure.
In the broader market context, the Sensex has shown a positive return of 0.83% over the past week, contrasting with Global Health's decline. This divergence suggests that the stock's recent struggles may be more company-specific rather than a reflection of overall market conditions. The stock has outperformed the broader market over the past year, but the current negative sentiment may be influenced by its high valuation metrics and declining trading volumes, which could deter potential investors.