Why is Garden Reach Sh. falling/rising?

As of 07-Jul, Garden Reach Shipbuilders & Engineers Ltd is experiencing a decline in its stock price, currently at Rs 2,890.65, reflecting a decrease of Rs 82.6 or 2.78%. Today's performance indicates that the stock underperformed its sector by 2.65%, with an intraday low of Rs 2,880.1, which is a drop of 3.13%. Over the past week, the stock has seen a decline of 4.15%, and while it has shown impressive long-term growth with a year-to-date increase of 78.69%, the recent negative momentum may be attributed to falling investor participation, as evidenced by an 11.55% drop in delivery volume compared to the five-day average. Despite the company’s strong fundamentals, including a low debt-to-equity ratio and significant growth in net profit, the stock is perceived as expensive with a high price-to-book value, which may be contributing to the current downward pressure.
In the broader market context, the stock's short-term performance contrasts sharply with the Sensex, which has only declined by 0.20% over the same week. This underperformance relative to the benchmark may indicate a lack of investor confidence in the stock despite its strong long-term fundamentals and consistent returns over the past three years. The stock's premium valuation compared to its peers could also be a factor leading to its recent price decline, as investors may be reassessing their positions in light of the stock's high price-to-earnings and price-to-book ratios.