Why is Mamata Machinery falling/rising?

As of 11-Sep, Mamata Machinery Ltd's stock price is currently at Rs 463.90, reflecting a decrease of Rs 14.8 or 3.09%. Today's price summary indicates that the stock has underperformed its sector by 2.37% and has experienced a trend reversal after two consecutive days of gains, touching an intraday low of Rs 460.25. Despite a significant increase in delivery volume, which rose by 2055.42% against the 5-day average, the stock's recent performance has been negatively impacted by disappointing quarterly results, including a 39.3% decline in net sales and an 82.8% drop in profit before tax. Additionally, the company's high valuation, indicated by a Price to Book Value of 6.7, combined with a decrease in institutional investor participation, has contributed to the stock's downward movement.
In the broader market context, Mamata Machinery's short-term performance shows a 14.36% increase over the past week, significantly outperforming the Sensex, which rose by only 1.03%. However, the stock's year-to-date return is down by 18.41%, contrasting with the Sensex's gain of 4.36%. This disparity highlights the challenges faced by Mamata Machinery in maintaining investor confidence, particularly in light of its flat quarterly results and declining institutional interest, which may suggest a lack of confidence in the company's future growth prospects compared to the overall market.