Why is SML ISUZU falling/rising?

As of 29-Aug, SML ISUZU Ltd's stock price is currently at Rs 4,201.95, reflecting a decline of Rs 80.2 or 1.87%. The stock has been underperforming recently, having fallen for three consecutive days, resulting in a total drop of 10.25% during this period. Today's trading saw the stock reach a high of Rs 4,383.3 but also dip to a low of Rs 4,157.25. Despite being above its longer-term moving averages, the stock's performance has been hindered by a decrease in investor participation, with delivery volume falling by 12.95% compared to the five-day average. However, the company has demonstrated strong long-term growth, with net sales increasing at an annual rate of 28.56% and operating profit at 32.21%, which may provide some support for the stock amidst its recent decline.
In the broader market context, SML ISUZU's short-term performance has been notably weaker than the benchmark, with a 7.38% decline over the past week compared to a 1.84% drop in the Sensex. Despite this, the stock has shown impressive returns over the longer term, with a 198.73% increase year-to-date and a 474.15% rise over the past three years, significantly outperforming the benchmark indices. Additionally, the increasing stake of institutional investors, who now hold 16.02% of the company, suggests a positive outlook based on their ability to analyze the company's fundamentals effectively. This institutional interest, combined with consistent returns over the last three years, indicates that while the stock is currently facing short-term challenges, its long-term prospects remain strong.