Why is BGR Energy Sys. falling/rising?

As of 05-Sep, BGR Energy Systems Ltd is experiencing a price increase, currently at Rs. 209.65, reflecting a rise of 9.95 or 4.98%. The stock has recently hit a new 52-week high and has shown strong performance, gaining 27.81% over the last six days. It has outperformed its sector by 5.59% today and has impressive returns over various periods, including a 330.67% increase over the past year. However, despite this positive short-term movement, the company faces significant challenges, including a negative book value and poor long-term growth metrics, with net sales declining at an annual rate of -30.01% and operating profit at -199.49% over the last five years.
In the broader market context, BGR Energy Systems has outperformed the Sensex significantly, with a 1-week return of +21.73% compared to the Sensex's +1.13% and a year-to-date return of +106.06% against the Sensex's +3.29%. This strong performance is juxtaposed with the company's financial difficulties, including a high debt-to-equity ratio of 2.53 times and a return on equity of only 0.27%, indicating low profitability. Additionally, the company has reported negative results for the last four consecutive quarters, which raises concerns about its long-term viability despite its recent stock price gains.