Why is Diamond Power falling/rising?

As of 17-Jul, Diamond Power Infrastructure Ltd's stock is currently priced at Rs 175.35, reflecting a decrease of Rs 4.05 or 2.26%. The stock has recently experienced a trend reversal, falling after 11 consecutive days of gains. Today, it reached an intraday high of Rs 185.1 but also touched a low of Rs 170.9, indicating volatility. Despite a strong performance over the past year, with a return of 33.86%, the stock has underperformed its sector by 2.77% today. Additionally, the company has reported positive results over the last six quarters, with a significant growth in profit after tax and net sales; however, it faces challenges due to a negative book value and high debt levels, which may deter investor confidence.
In the broader market context, while Diamond Power has outperformed the Sensex in the long term, its recent short-term performance has not mirrored this trend, as indicated by its underperformance today. The stock's 1-week return of +8.04% contrasts with the Sensex's decline of -1.12%, showcasing its strength in the near term. However, the decline in investor participation, with a significant drop in delivery volume, suggests a potential lack of confidence among investors, which could be contributing to the stock's current downward movement.