Why is Cipla falling/rising?

As of 04-Sep, Cipla Ltd. is currently priced at 1,577.65, reflecting a decrease of 3.15, or 0.2%. The stock's performance today is in line with its sector, although it has shown a decline in investor participation, with delivery volume falling by 32.77% against the 5-day average. Over the past week, the stock has decreased by 0.06%, while it has gained 4.10% over the past month. Despite a year-to-date increase of 3.11%, the stock has underperformed over the past year with a decline of 4.60%. The company maintains a low debt-to-equity ratio and has demonstrated healthy long-term growth, with operating profit increasing at an annual rate of 22.82%. Additionally, the stock's attractive valuation, indicated by a 4.1 price-to-book value and a PEG ratio of 1.1, suggests it is trading at fair value compared to its peers.
In the broader market context, the Sensex has increased by 0.80% over the past week, contrasting with Cipla's slight decline. While the stock has shown strong performance over longer periods, such as a 55.35% increase over three years, its recent short-term performance has lagged behind the benchmark. The high institutional holdings at 54.51% indicate confidence from larger investors, who typically have better analytical resources. However, the recent drop in delivery volume may signal waning interest among retail investors, contributing to the stock's current downward movement.