Why is Diamond Power falling/rising?

As of 26-Sep, Diamond Power Infrastructure Ltd's stock is currently priced at Rs 151.90, reflecting a decline of Rs 3.3 or 2.13%. The stock has been experiencing a downward trend, having fallen for the last three consecutive days, resulting in a total decrease of 6.61% during this period. Additionally, the stock's performance over the past week shows a decline of 6.15%, while it has outperformed the benchmark Sensex over the past month with a gain of 6.04%. Despite positive financial results over the last seven quarters, including significant growth in net sales and profit after tax, the company faces challenges such as a negative book value, high debt levels, and decreasing promoter confidence, which may contribute to the stock's recent price decline.
In the broader market context, the stock's short-term performance has been notably worse than the benchmark, as the Sensex has only declined by 2.66% over the same week. The overall market has generated negative returns of 7.63% in the last year, while Diamond Power has managed to achieve a positive return of 12.52% during that period. However, the recent drop in investor participation, with a significant decrease in delivery volume, alongside the negative sentiment stemming from the company's high debt-to-equity ratio and reduced promoter stake, suggests that investor confidence may be waning, further impacting the stock's price negatively.