Why is Mamata Machinery falling/rising?

As of 29-Sep, Mamata Machinery Ltd is experiencing a decline in its stock price, currently at Rs 450.10, reflecting a decrease of Rs 25.5 or 5.36%. The stock has underperformed its sector by 3.98% today and has been on a consecutive downward trend for the last three days, resulting in a total drop of 8.92% during this period. Additionally, the stock's performance over the past week shows a decline of 6.30%, while it has increased by 9.26% over the past month. However, the company has reported disappointing quarterly results, with net sales falling by 39.3% compared to the previous four-quarter average, and significant drops in profit before tax and profit after tax, contributing to negative sentiment around the stock. Furthermore, a decrease in institutional investor participation, with a reduction of 0.84% in their stake, adds to the bearish outlook.
In the broader market context, the Sensex has declined by 2.18% over the past week, indicating that while Mamata Machinery's short-term performance is worse than the benchmark, it has outperformed the Sensex over the past month. The stock's liquidity remains adequate for trading, but the falling delivery volume suggests waning investor interest. Despite the company's low debt-to-equity ratio and healthy long-term growth in operating profit, the expensive valuation and recent poor financial results have overshadowed these positives, leading to a lack of confidence among investors.