Why is Diamond Power falling/rising?

As of 25-Jul, Diamond Power Infrastructure Ltd is experiencing a decline in its stock price, currently at Rs 162.85, which reflects a decrease of Rs 2.6 or 1.57%. The stock has been losing value for the past two days, with a total drop of 2.86% during this period. Despite the recent downturn, the stock has shown strong performance over the longer term, with a 39.79% increase over the past month and a remarkable 28.30% rise over the last year. However, the company has a negative book value and has reported losses, which raises concerns about its long-term fundamental strength. Additionally, the delivery volume has significantly decreased, indicating falling investor participation.
In the broader market context, the stock's short-term performance has been notably worse than the benchmark, as it has declined by 3.41% over the past week compared to a minor drop of 0.36% in the Sensex. While Diamond Power has outperformed the BSE500 in the long term, the current negative sentiment may be influenced by its high debt levels and weak long-term growth prospects. The lack of domestic mutual fund investment further suggests that institutional investors may be wary of the stock's valuation and future performance, contributing to the recent price decline.