Why is Supreme Inds. falling/rising?

As of 12-Aug, Supreme Industries Ltd is experiencing a decline in its stock price, currently at Rs 4,221.50, which reflects a decrease of Rs 127.5 or 2.93%. Today's price summary indicates that the stock underperformed its sector by 0.5%, with an intraday low of Rs 4,207.95, marking a drop of 3.24%. The stock's performance over the past week shows a decline of 1.10%, while it has gained 3.30% over the past month. Despite strong long-term fundamentals, including a healthy average Return on Equity (ROE) of 22.73% and a low Debt to Equity ratio, the stock's recent movement has been negatively impacted by a sector-wide decline of 2.43% in Plastic Products and a weighted average price that suggests more trading occurred near the lower price levels.
Broader Market Context: In comparison to the benchmark Sensex, which has seen a slight decline of 0.59% over the past week, Supreme Industries Ltd's performance has been worse, indicating a relative weakness in the stock. The company's year-to-date performance shows a significant decline of 10.35%, contrasting with the Sensex's gain of 2.68%. While there has been rising investor participation, as evidenced by a 13.26% increase in delivery volume against the 5-day average, the overall market sentiment and sector performance have contributed to the stock's downward trajectory.