Why is Godfrey Phillips falling/rising?

As of 26-Aug, Godfrey Phillips India Ltd. is experiencing a decline in its stock price, currently at Rs 10,527.20, reflecting a decrease of Rs 356.45 or 3.28%. Today's performance indicates that the stock has underperformed its sector by 3.98%, with an intraday low of Rs 10,497.65. Despite this decline, the stock has shown strong performance over the past week, with a return of 7.34%, and a remarkable 101.75% increase year-to-date. The company has demonstrated high management efficiency, evidenced by a return on equity (ROE) of 18.33% and a low debt-to-equity ratio of 0.02. However, the stock is considered very expensive with a price-to-book value of 10.4, which may be contributing to the recent price drop.
In the broader market context, while Godfrey Phillips has outperformed the Sensex over various periods, including a 20.04% increase over the past month compared to the benchmark's decline of 0.83%, the current market sentiment appears to be cautious. The significant drop in delivery volume by 47.59% against the five-day average suggests a decrease in investor participation, which could be influencing the stock's current downward movement. Despite the company's strong fundamentals and consistent returns over the past three years, the high valuation and recent underperformance relative to its sector may be causing investors to reassess their positions.