Why is Astrazeneca Phar falling/rising?

As of 01-Aug, Astrazeneca Pharma India Ltd is experiencing a decline in its stock price, currently at Rs 8,911.00, which reflects a decrease of Rs 286.3 or 3.11%. The stock has been on a downward trend, having fallen for the last two consecutive days with a total decline of 4.09%. Today's trading saw the stock touch an intraday low of Rs 8,861.7, and the volume traded was more concentrated around this lower price point. Despite a strong performance over the longer term, with a year-to-date return of 21.49% and a one-year return of 24.26%, the stock is currently facing pressure due to a recent drop in investor participation, as evidenced by a 19.16% decrease in delivery volume compared to the five-day average.
In the broader market context, Astrazeneca's recent performance contrasts with the benchmark Sensex, which has declined by 1.06% over the past week and 3.70% over the past month. While the pharmaceutical sector has also seen a downturn, with a drop of 3.26%, Astrazeneca's strong management efficiency and positive financial results, including a significant net profit growth of 88.82%, suggest underlying strengths. However, concerns regarding its high valuation, reflected in a Price to Book Value of 28.9 and a PEG ratio of 3.2, may be contributing to the stock's current decline, as investors weigh these factors against the backdrop of recent price movements.