Why is Solar Industries falling/rising?

As of 22-Sep, Solar Industries India Ltd is experiencing a decline in its stock price, currently at 14,506.00, reflecting a decrease of 171.3 points or 1.17%. Today's performance indicates that the stock has underperformed its sector by 0.34%. Although the stock is trading higher than its 20-day and 200-day moving averages, it is below its 5-day, 50-day, and 100-day moving averages. Additionally, there has been a notable drop in investor participation, with delivery volume falling by 29.52% against the 5-day average. Despite a strong long-term fundamental strength, including a high return on capital employed and consistent growth in net sales, the stock's valuation appears expensive, which may be contributing to the recent price decline.
In the broader market context, the stock's short-term performance over the past week shows a modest gain of 0.29%, while the benchmark Sensex has increased by 0.46%. Over the last month, however, Solar Industries has underperformed with a decline of 2.12%, contrasting with the Sensex's rise of 1.05%. This underperformance, coupled with high institutional holdings and consistent returns over the past three years, suggests that while the company has strong fundamentals, the current market sentiment may be weighing on its stock price. The combination of falling investor participation and a high price-to-book value ratio may also be influencing investor decisions, leading to the recent price drop.