Why is Grindwell Norton falling/rising?

As of 01-Aug, Grindwell Norton Ltd. is experiencing a decline in its stock price, currently at 1,522.00, reflecting a decrease of 18.0 points or 1.17%. The stock has been underperforming significantly, having lost 13.62% over the past six days and is trading below its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages. Additionally, the stock's performance over various periods shows a 7.45% decline over the past week and an 11.55% drop over the past month, with a staggering 41.01% decrease over the last year. The company's high management efficiency, indicated by a return on equity (ROE) of 18.29%, and low debt-to-equity ratio may not be sufficient to counterbalance the negative sentiment driven by poor long-term growth and flat quarterly results. In the broader market context, Grindwell Norton has underperformed the Sensex, which has seen a modest decline of 1.06% over the past week, while Grindwell's performance has been significantly worse. The stock's returns have lagged behind the benchmark over various timeframes, including a 20.87% decline year-to-date compared to a 3.15% gain in the Sensex. This underperformance is compounded by a high price-to-book value ratio of 7.5, indicating an expensive valuation relative to its peers, and a recent drop in investor participation, as evidenced by a decrease in delivery volume. Overall, the combination of declining sales growth, flat financial results, and a lack of positive momentum in the stock has contributed to its recent price decline.