Why is SML ISUZU falling/rising?

As of 05-Sep, SML ISUZU Ltd's stock price is currently at Rs 3,781.00, reflecting a decrease of Rs 13.1 or 0.35%. The stock has been underperforming recently, having fallen for the last two consecutive days, resulting in a total decline of 4.37%. Today's trading saw the stock reach an intraday high of Rs 3,877.55 but also dip to a low of Rs 3,653.90. The stock's performance over the past week shows a significant decline of 10.02%, although it has had a strong year-to-date return of 168.80%. Despite the recent downturn, the company has shown healthy 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.
Broader market context reveals that while SML ISUZU has experienced a decline in the short term, the benchmark Sensex has gained 1.13% over the same week. This stark contrast highlights the stock's recent struggles against the broader market. The stock's liquidity remains adequate for trading, but a decrease in delivery volume suggests waning investor interest. Despite the recent price drop, the company has consistently generated strong returns over the last three years, outperforming the BSE500 in each of the last three annual periods, which may provide some reassurance to long-term investors.