Why is NRB Indl Bearing falling/rising?

As of 19-Sep, NRB Industrial Bearings Ltd is currently priced at 32.17, reflecting an increase of 0.36 or 1.13%. The stock has shown a positive trend today, having gained after two consecutive days of decline. It is trading above its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages, indicating a strong upward momentum. Over the past week, the stock has outperformed its sector by 0.94%. However, there has been a notable decline in investor participation, with delivery volume dropping by 60.77% against the 5-day average. Year-to-date, the stock has increased by 35.17%, significantly outperforming the Sensex, which has risen by only 5.74%.
In the broader market context, NRB Industrial Bearings Ltd's short-term performance has been robust compared to the Sensex, with a 1-week return of 7.05% versus the Sensex's 0.88%. This indicates that the stock is gaining traction relative to the overall market. Despite the recent drop in delivery volume, the stock's strong performance over various time frames, particularly in the last month and year-to-date, suggests that investor sentiment remains relatively positive, contributing to its rising price.