Why is Simm. Marshall falling/rising?

As of 19-Sep, Simmonds Marshall Ltd is experiencing a slight decline in its stock price, currently at 140.20, reflecting a decrease of 0.1 or 0.07%. The stock has been on a downward trend, having fallen consecutively for the last three days, resulting in a total decline of 8.04% during this period. Despite this recent downturn, the stock has outperformed its sector by 0.45% today. Over the past week, the stock has underperformed significantly, with a return of -4.63%, while the Sensex has gained 0.88%. However, the company has shown strong fundamentals, with positive results over the last ten consecutive quarters, including a remarkable 175.94% growth in profit after tax in the latest six months and a high return on capital employed (ROCE) of 13.98%. The stock is also trading at a discount compared to its peers, which may provide some support for its valuation.
In the broader market context, while Simmonds Marshall has seen a decline in the short term, it has outperformed the benchmark Sensex over longer periods, including a return of 8.14% over the past year compared to the Sensex's -0.67%. This indicates that despite recent challenges, the stock has a history of strong performance, particularly over the long term, with a 123.78% return over the last three years. The rising investor participation, evidenced by a significant increase in delivery volume, suggests that there may be renewed interest in the stock, which could help stabilize its price in the future. Overall, while the stock is currently facing downward pressure, its strong fundamentals and historical performance may provide a foundation for recovery.