Why is KRN Heat Exchan falling/rising?

As of 28-Aug, KRN Heat Exchanger and Refrigeration Ltd's stock price is currently at Rs 886.00, reflecting a decrease of Rs 19.9 or 2.2%. The stock has been underperforming, having fallen for the last three days with a total decline of 7.2% during this period. Today's performance indicates that it has underperformed its sector by 1.06%. Despite a strong year-to-date return of 26.33%, the stock's recent movement is influenced by a significant drop in investor participation, with delivery volume decreasing by 42.45% compared to the five-day average. While the company shows high management efficiency and strong growth in net sales, its valuation appears expensive with a high Price to Book Value ratio, which may be contributing to the recent price decline.
In the broader market context, KRN Heat Exchanger's short-term performance contrasts with the benchmark Sensex, which has declined by 2.34% over the past week while the stock itself has gained 1.61%. This suggests that the stock has been relatively resilient compared to the market. However, the recent consecutive falls and the overall negative sentiment reflected in the stock's performance today indicate that investors may be cautious despite the company's strong fundamentals and increasing institutional interest. The combination of high valuation concerns and declining trading activity may be weighing on the stock's price, leading to its current downward trajectory.