Why is Enviro Infra falling/rising?

As of 15-Jul, Enviro Infra Engineers Ltd is experiencing a decline in its stock price, currently at Rs 269.60, which reflects a decrease of Rs 10.4 or 3.71%. Today's price summary indicates that the stock has underperformed its sector by 4.49% and has fallen after four consecutive days of gains, touching an intraday low of Rs 265.05. Despite this decline, the stock has shown positive momentum over the past week and month, with returns of 17.37% and 22.41%, respectively. However, the year-to-date performance remains negative at -13.52%. The company has demonstrated strong management efficiency and growth, with a high return on equity and significant increases in net sales and operating profit, but it also faces challenges such as a high valuation and decreasing institutional investor participation.
In the broader market context, while Enviro Infra has outperformed the Sensex in the short term, the benchmark index has shown a modest gain of 1.79% over the past month. The stock's recent decline may be influenced by the falling participation of institutional investors, who have reduced their stake in the company, indicating a potential lack of confidence among more sophisticated market participants. This decline in institutional interest, coupled with the stock's expensive valuation, could be contributing to the downward pressure on its price despite the company's strong operational performance.