Why is Mamata Machinery falling/rising?

As of 16-Sep, Mamata Machinery Ltd's stock price is currently at 454.10, reflecting a decrease of 6.0 points or 1.3%. Today's performance indicates that the stock has underperformed its sector by 1.47%. Despite trading above its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages, there has been a significant drop in investor participation, with delivery volume falling by 64.37% compared to the 5-day average. The company has reported flat results for June 25, with net sales down 39.3% and profit before tax down 82.8% compared to previous quarters. Additionally, institutional investors have reduced their stake in the company by 0.84%, indicating a lack of confidence in its performance.
In the broader market context, Mamata Machinery's short-term return over the past week shows a gain of 10.41%, significantly outperforming the Sensex, which increased by only 1.58%. However, the year-to-date performance reveals a decline of 20.14% for the stock, contrasting with the Sensex's gain of 5.43%. The company's low debt-to-equity ratio and healthy long-term growth in operating profit are positive factors; however, the expensive valuation and declining institutional interest may be contributing to the stock's recent downward movement.