Why is SML ISUZU falling/rising?

As of 11-Sep, SML ISUZU Ltd's stock price is currently at Rs 3,666.45, reflecting a decrease of Rs 57.2 or 1.54%. The stock has underperformed its sector by 0.43% today, having touched an intraday low of Rs 3,630, which represents a decline of 2.52%. Over the past week, the stock has decreased by 3.36%, and over the past month, it has fallen by 4.95%. Despite these short-term declines, the stock has shown impressive long-term performance, with a year-to-date increase of 160.66% and a 3-year increase of 366.68%. Positive factors contributing to the stock's resilience include a healthy long-term growth rate in net sales and operating profit, as well as increased participation from institutional investors, who now hold 16.02% of the company.
In the broader market context, the Sensex has gained 1.03% over the past week and 1.17% over the past month, indicating that SML ISUZU's recent declines are occurring against a backdrop of overall market strength. The stock's performance relative to the benchmark suggests that while it has experienced significant growth over the long term, it is currently facing challenges that have led to short-term underperformance. The rising investor participation, particularly from institutional investors, may provide some support for the stock, but the recent price movements indicate that market sentiment may be cautious in the short term.