Why is Natl. Plastic falling/rising?

As of 15-Sep, National Plastic Industries Ltd is experiencing a decline in its stock price, currently at Rs 58.58, which reflects a decrease of Rs 1.17 or 1.96%. The stock has underperformed its sector today by 1.9% and has been on a downward trend for the last two days, accumulating a total loss of 3.97% during this period. Additionally, the stock has shown a significant decline over the past month, with a return of -11.51%, and has generated a negative return of -16.16% over the past year. Despite a notable increase in profits by 126% over the same timeframe, the stock's performance has been hindered by weak long-term fundamentals, including a low growth rate in net sales and a high debt to EBITDA ratio, which contribute to its poor market perception.
In the broader market context, the stock's recent performance contrasts sharply with the Sensex, which has gained 1.24% over the past week and 1.47% over the past month. This underperformance is indicative of the stock's struggles, as it has consistently lagged behind the benchmark indices over various time frames, including the last three years and one year. The company's weak long-term growth prospects and high debt levels have likely contributed to investor caution, despite its attractive valuation compared to peers. Overall, the combination of negative short-term performance and broader market gains highlights the challenges faced by National Plastic Industries Ltd in regaining investor confidence.