Why is NRB Bearings falling/rising?

As of 17-Sep, NRB Bearings Ltd is experiencing a decline in its stock price, currently at 282.60, which reflects a decrease of 2.6 points or 0.91%. The stock has underperformed its sector by 2.03% today and has fallen after two consecutive days of gains. In terms of returns, the stock has shown a slight increase of 0.50% over the past month, but it has a significant decline of 10.51% over the past year. Despite this, the company demonstrates a strong ability to service its debt, with a low Debt to EBITDA ratio of 1.06 times, and has seen a healthy long-term growth in operating profit at an annual rate of 72.65%. The stock is trading at a discount compared to its peers, and while it has generated negative returns over the past year, its profits have risen by 45.3%, indicating a favorable PEG ratio of 0.4.
In the broader market context, the Sensex has increased by 1.56% over the past week and 2.60% over the past month, contrasting with NRB Bearings' decline of 0.51% in the same one-week period. This indicates that the stock is not only underperforming relative to the market but also facing challenges in maintaining investor confidence despite its strong fundamentals. The rising investor participation, with a significant increase in delivery volume, suggests some interest in the stock, but the overall market sentiment appears to be weighing down its price.