Why is NRB Bearings falling/rising?

As of 23-Sep, NRB Bearings Ltd is experiencing a price increase, currently at Rs 292.60, reflecting a rise of Rs 12.9 or 4.61%. Today's performance indicates that the stock has outperformed its sector by 4.76%, reaching an intraday high of Rs 301, which is a 7.62% increase. Despite a decline in delivery volume by 41.7% compared to the 5-day average, the stock is trading above its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages. While the stock has shown a negative return of -1.98% over the past month and -7.02% over the past year, it has demonstrated strong long-term growth with an annual operating profit increase of 72.65% and a low Debt to EBITDA ratio of 1.06 times, suggesting a solid ability to service debt.
In the broader market context, NRB Bearings has outperformed the Sensex in the short term, with a 1-week return of +2.59% compared to the benchmark's -0.34%. However, the stock's performance over the past year is less favorable, with a decline of -7.02% against the Sensex's -3.33%. The presence of pledged promoter shares (65.9%) may exert downward pressure in a falling market, which could be a concern for investors. Nevertheless, the stock is trading at a discount relative to its peers' historical valuations, and its PEG ratio of 0.5 indicates potential for growth, despite the recent flat results in PAT for the last six months.