Why is SML ISUZU falling/rising?

As of 19-Sep, SML ISUZU Ltd's stock price is currently at 3,740.00, reflecting an increase of 70.0 (1.91%). Today's price summary indicates that the stock has outperformed its sector by 1.09% and has shown a trend reversal after two consecutive days of decline, reaching an intraday high of Rs 3763.75. Despite this positive movement, the stock has experienced a decline of 6.45% over the past month, although it has delivered impressive returns of 165.89% year-to-date and 96.64% over the past year. 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%. Additionally, institutional investors have increased their stake, indicating confidence in the company's fundamentals.
In the broader market context, SML ISUZU's short-term performance over the past week shows a gain of 0.62%, which is slightly below the benchmark Sensex's increase of 0.88%. While the stock has outperformed the benchmark over longer periods, including a remarkable 381.34% increase over the past three years, the recent decline in delivery volume by 14.03% against the five-day average suggests a decrease in investor participation. This may indicate a cautious sentiment among retail investors, even as institutional interest grows. Overall, the stock's recent rise can be attributed to its strong fundamentals and institutional backing, despite some short-term volatility and declining retail participation.