Why is Astrazeneca Phar falling/rising?

As of 25-Jul, Astrazeneca Pharma India Ltd's stock price is currently at Rs 8,832.65, reflecting a decrease of Rs 196.2, or 2.17%. Today's price summary indicates that the stock has underperformed its sector by 2.34%, with an intraday low of Rs 8,800.3, marking a decline of 2.53%. Over the past week, the stock has decreased by 3.05%, while it has shown a modest decline of 0.37% over the past month. Despite a strong year-to-date return of 20.42% and a significant 27.73% increase over the past year, the stock's recent performance is hampered by falling investor participation, as evidenced by a 48.99% drop in delivery volume compared to the 5-day average. The stock's moving averages indicate it is currently lower than the 5-day, 20-day, and 50-day averages, which may contribute to the negative sentiment.
In the broader market context, Astrazeneca Pharma's short-term performance has underperformed the Sensex, which has only declined by 0.36% over the past week. While the company has demonstrated strong management efficiency and consistent returns over the years, concerns about its high valuation, indicated by a Price to Book Value of 28.7, and a relatively low growth rate in operating profit may be influencing investor sentiment negatively. The stock's premium valuation compared to peers and a high PEG ratio of 3.1 suggest that investors might be cautious, leading to the current downward price movement despite the company's positive financial results in recent quarters.