Why is Garden Reach Sh. falling/rising?

As of 15-Sep, Garden Reach Shipbuilders & Engineers Ltd is experiencing a decline in its stock price, currently at Rs 2,489.25, reflecting a decrease of Rs 100.15 or 3.87%. Today's performance indicates that the stock has underperformed its sector by 7.49%, with an intraday low of Rs 2,481.45. Despite a strong year-to-date return of 53.88% and consistent returns over the past three years, the stock has faced a 3.86% decline over the past month. Positive factors such as low debt, strong long-term growth, and increasing institutional investor participation are overshadowed by its high valuation metrics, including a Price to Book Value ratio of 13.7, which suggests that the stock may be trading at a premium compared to its peers. Broader market context shows that while the Sensex has gained 1.24% over the past week, Garden Reach Shipbuilders has increased by 4.95% in the same period, indicating a strong short-term performance relative to the benchmark. However, the recent decline in stock price amidst rising investor participation and a healthy financial outlook suggests that market sentiment may be reacting to the stock's high valuation and potential overextension. The shipbuilding sector has seen a gain of 3.58%, yet the stock's current performance reflects a disconnect between its strong fundamentals and market perception, contributing to its recent price drop.