Why is NRB Indl Bearing falling/rising?

As of 15-Sep, NRB Industrial Bearings Ltd's stock price is currently at Rs 31.96, reflecting an increase of Rs 1.91 or 6.36%. The stock has shown strong performance recently, gaining 16.05% over the last two days and outperforming its sector by 5.52% today. It has also demonstrated impressive returns over various periods, including a 24.99% increase over the past week and a 34.29% rise year-to-date. Positive financial indicators, such as a higher profit after tax and a strong debtors turnover ratio, contribute to the stock's upward movement. However, the company faces challenges, including a negative book value and a high debt-to-equity ratio, which may raise concerns about its long-term growth potential.
In the broader market context, NRB Industrial Bearings has significantly outperformed the Sensex, which only increased by 1.24% over the past week, while the stock surged by nearly 25%. Despite its recent gains, the stock has underperformed against the benchmark over the past year and three years, with a return of -17.63% compared to the Sensex's decline of only 1.33% in the same timeframe. This consistent underperformance highlights the risks associated with the stock, particularly given its negative EBITDA and weak long-term fundamentals, which could temper investor enthusiasm despite the recent price increase.