Why is SML ISUZU falling/rising?

As of 17-Sep, SML ISUZU Ltd's stock price is currently at 3,772.35, reflecting a decrease of 29.4 points or 0.77%. The stock has underperformed its sector today by 2.05% and has experienced a trend reversal, falling after three consecutive days of gains. Despite this recent decline, the stock has shown strong performance over the long term, with a year-to-date increase of 168.19% and a remarkable 376.70% rise over the past three years. However, the stock's delivery volume has decreased by 10.43% compared to the five-day average, indicating a drop in investor participation. Positive factors contributing to the stock's resilience include a healthy long-term growth rate in net sales and operating profit, as well as increasing participation from institutional investors, who now hold 16.02% of the company.
In the broader market context, SML ISUZU's short-term performance has lagged behind the benchmark, with a 1-week return of 1.31% compared to the Sensex's 1.56%. This underperformance in the short term, combined with the recent decline in investor participation, suggests that while the company has strong fundamentals and long-term growth potential, current market sentiment may be affecting its stock price negatively. The stock's ability to maintain consistent returns over the last three years contrasts with its recent struggles, highlighting a potential disconnect between its strong fundamentals and current market dynamics.