Why is Garden Reach Sh. falling/rising?

As of 18-Jul, Garden Reach Shipbuilders & Engineers Ltd is experiencing a decline in its stock price, currently at Rs 2,614.70, which reflects a decrease of Rs 32.8 or 1.24%. Today's price summary indicates that the stock reached an intraday high of Rs 2,712.65, representing a 2.46% increase, but also fell to a low of Rs 2,589.15, which is a 2.2% decrease. Over the past week, the stock has underperformed with a return of -6.67%, while the benchmark Sensex has only declined by 0.90%. Despite this short-term downturn, the stock has shown strong long-term performance with a year-to-date return of 61.64% and a remarkable 1,011.46% increase over the past three years. The company benefits from low debt levels and strong fundamentals, including a significant increase in net profit and sales, which have attracted institutional investors, increasing their stake by 1.41%.
In the broader market context, the shipbuilding sector has seen a decline of 2.2%, contributing to the stock's downward movement today. While the stock has outperformed the sector by 1.05% today, the overall negative sentiment in the sector may be impacting investor confidence. The stock's premium valuation, indicated by a high Price to Book Value ratio, may also be causing some caution among investors, despite the company's solid growth metrics and consistent returns over the past three years. This combination of sector performance and valuation concerns appears to be influencing the stock's recent price movement.