Why is Menon Pistons falling/rising?

As of 22-Sep, Menon Pistons Ltd is experiencing a decline in its stock price, currently at Rs 66.38, reflecting a decrease of Rs 2.2 or 3.21%. The stock has been underperforming, having fallen consecutively for the last four days, resulting in a total decline of 4.78% during this period. Today's trading saw the stock touch an intraday low of Rs 65.74, and the volume traded was primarily near this low price, indicating weak investor interest. Over the past week, the stock has underperformed the sector by 3.1%, and its year-to-date performance shows a significant drop of 7.34%, contrasting with the Sensex's gain of 5.15%. While the company has reported positive results in June 2025, including a high return on equity and a low debt-to-equity ratio, these factors have not been sufficient to counterbalance the stock's recent poor performance and the overall decline in net sales and operating profit growth over the past five years.
In the broader market context, Menon Pistons' short-term performance has lagged behind the benchmark, with a 1-week return of -2.47% compared to the Sensex's gain of 0.46%. This underperformance is indicative of broader market sentiments, as the stock has also significantly trailed the market over the past year, with a return of -23.95% against the Sensex's decline of only 2.82%. The stock's liquidity remains adequate for trading, but the falling investor participation, as evidenced by a nearly 40% drop in delivery volume, suggests a lack of confidence among investors. Overall, the combination of weak recent performance, declining sales growth, and investor sentiment contributes to the stock's downward trajectory.