Why is SML ISUZU falling/rising?

As of 31-Jul, SML ISUZU Ltd's stock price is currently at 3,304.20, reflecting a decline of 73.0 points or 2.16%. The stock has been on a downward trend, having underperformed its sector by 0.62% today and experiencing a consecutive fall over the last six days, resulting in a total decline of 18.17%. It opened with a loss of 2.88% and reached an intraday low of Rs 3208.35. Despite this recent downturn, the stock has shown impressive long-term growth, with net sales increasing at an annual rate of 28.56% and operating profit at 32.21%. Institutional investors have also increased their stake, indicating confidence in the company's fundamentals, which may provide some support against the recent price drop.
In the broader market context, SML ISUZU's short-term performance has significantly lagged behind the benchmark, with a 1-week return of -17.29% compared to the Sensex's -1.22%. However, the stock has demonstrated strong performance over longer periods, with a year-to-date return of 134.91% and a 3-year return of 362.26%, both outperforming the benchmark indices. This contrast highlights the stock's volatility in the short term while maintaining a robust long-term growth trajectory, suggesting that current price movements may be influenced by short-term market sentiments rather than fundamental weaknesses.