Why is Shakti Pumps falling/rising?

As of 23-Sep, Shakti Pumps (India) Ltd is currently priced at 868.70, reflecting a decrease of 8.2 points or 0.94%. The stock has underperformed its sector by 0.7% today and has experienced a trend reversal after two consecutive days of gains. Additionally, the stock's delivery volume has fallen significantly, decreasing by 32.46% against the five-day average, indicating a decline in investor participation. Over the past week, the stock has dropped by 2.02%, while it has shown a positive return of 2.55% over the last month. Despite a strong long-term growth trajectory, with net sales increasing at an annual rate of 47.42% and a high return on equity (ROE) of 19.67%, the stock's valuation appears expensive with a price-to-book ratio of 9.2, which may be contributing to the current price decline.
In the broader market context, Shakti Pumps has underperformed the Sensex, which has only decreased by 0.34% over the past week. While the stock has generated a notable return of 30.91% over the last year, it is important to note that this performance is juxtaposed against a backdrop of rising profits, which have increased by 76.8%. However, the stock's high valuation relative to its peers may be causing some investors to reassess their positions, leading to the recent price drop. The combination of falling investor participation and a trend reversal suggests that market sentiment may be shifting, despite the company's strong fundamentals and consistent returns over the past three years.