Why is Star Cement falling/rising?

As of 18-Sep, Star Cement Ltd. is currently priced at 270.05, reflecting a decrease of 1.75, or 0.64%. The stock has been underperforming, having fallen for the last three consecutive days, resulting in a total decline of 1.87% during this period. In the past week, it has underperformed its sector by 0.55%. Despite a strong long-term performance with a 24.45% return over the last year and a remarkable 161.55% increase over three years, the stock has seen a decline of 6.88% over the past month. Additionally, the delivery volume has decreased by 12.29% against the five-day average, indicating falling investor participation, which may contribute to the recent price drop.
In the broader market context, the Sensex has increased by 1.80% over the past week, contrasting with Star Cement's decline of 0.63% during the same period. This suggests that while the overall market is experiencing positive momentum, Star Cement is lagging behind. The company's low debt-to-equity ratio and majority ownership by promoters are positive indicators; however, the recent underperformance and declining trading volume may be causing investor concern, leading to the stock's current downward trend.