Why is Grindwell Norton falling/rising?

As of 30-Jun, Grindwell Norton Ltd. is experiencing a price increase, currently at 1,726.75, reflecting a rise of 29.75 or 1.75%. Today's performance indicates that the stock outperformed its sector by 0.55%, despite opening with a loss of 2.18%. Throughout the day, it reached an intraday high of Rs 1,734.65, showcasing a 2.22% increase, while the intraday low was Rs 1,660.05. Over the past week, the stock has shown a positive return of 6.54%, although it has underperformed over the past month and year, with returns of -3.26% and -36.75%, respectively. The company benefits from high management efficiency, a low debt-to-equity ratio, and significant institutional holdings, which may contribute positively to investor sentiment. However, concerns about poor long-term growth and a high valuation relative to its earnings could be weighing on its overall performance.
In the broader market context, Grindwell Norton’s recent short-term performance of +6.54% over the past week significantly outpaces the Sensex, which has only increased by 2.09% in the same period. Despite this positive short-term trend, the stock's year-to-date performance remains negative at -10.22%, contrasting with the Sensex's gain of 7.00%. This divergence highlights the stock's volatility and the challenges it faces in maintaining investor confidence amidst a backdrop of underperformance over longer timeframes.