Why is Mamata Machinery falling/rising?

As of 08-Sep, Mamata Machinery Ltd is experiencing a decline in its stock price, currently at 401.35, which reflects a decrease of 4.15 (-1.02%). The stock has underperformed its sector by 1.87% today and has been on a consecutive downward trend for the last three days, resulting in a total decline of 2.51% during this period. Additionally, the stock's performance over the past week shows a decrease of 2.86%, and it has fallen significantly by 12.81% over the past month. The company has reported disappointing financial results, with net sales falling by 39.3% compared to the previous four-quarter average, and a substantial drop in profit before tax and profit after tax, leading to concerns about its valuation, which is considered expensive with a price-to-book value of 7.2. Furthermore, there has been a notable decrease in investor participation, particularly from institutional investors, who have reduced their stake by 0.84%.
In the broader market context, while the Sensex has shown a positive return of 0.53% over the past week and 1.16% over the past month, Mamata Machinery's performance has been significantly lagging behind, indicating a lack of investor confidence in the stock. The company's year-to-date return stands at a concerning -29.41%, contrasting sharply with the Sensex's positive return of 3.39%. This divergence highlights the challenges Mamata Machinery faces in attracting investment, especially given the recent flat results and declining participation from institutional investors, who typically have more resources to analyze company fundamentals.