Why is Grindwell Norton falling/rising?

As of 24-Jul, Grindwell Norton Ltd. is currently priced at 1,762.05, reflecting an increase of 5.85 or 0.33%. The stock has shown a trend reversal by gaining after two consecutive days of decline and has outperformed its sector by 0.46% today. However, over the past week, the stock has decreased by 2.81%, while it has increased by 6.88% over the past month. Despite this recent uptick, the stock has underperformed significantly over the longer term, with a year-to-date decline of 8.39% and a staggering 32.12% drop over the past year. Positive factors include high management efficiency indicated by a return on equity (ROE) of 18.29% and a low debt-to-equity ratio, alongside substantial institutional holdings at 25.02%. Conversely, the company faces challenges with poor long-term growth, as evidenced by low net sales growth and a high price-to-book value ratio, which suggests it may be overvalued compared to its peers.
In the broader market context, Grindwell Norton has underperformed the Sensex, which has gained 5.18% year-to-date, while the stock has seen a decline of 8.39%. The stock's recent performance, while showing a slight increase today, is overshadowed by its long-term underperformance, particularly over the past year and three years, where it has lagged behind the BSE500 index. This context highlights the challenges the company faces in regaining investor confidence, despite some positive indicators in management efficiency and institutional support.