Why is Deep Polymers falling/rising?

As of 22-Sep, Deep Polymers Ltd is experiencing a decline in its stock price, currently at Rs 49.76, reflecting a decrease of Rs 1.24 or 2.43%. The stock has underperformed its sector by 1.6% today and has touched an intraday low of Rs 49.6, indicating a downward trend. Over the past week, the stock has decreased by 3.66%, and its year-to-date performance shows a significant decline of 27.43%. Despite a low debt-to-equity ratio of 0.45 and healthy long-term growth in operating profit at an annual rate of 40.02%, the stock's profitability is hindered by a low return on capital employed (ROCE) of 5.7%. Additionally, while promoters have increased their stake by 0.66%, signaling confidence, the stock's overall performance has been negatively impacted by a 41.13% drop in returns over the past year and a consistent underperformance against benchmarks.
In the broader market context, the Sensex has shown a positive return of 0.46% over the past week, contrasting sharply with Deep Polymers' decline. The company's performance has lagged behind the benchmark significantly, with a 9.53% drop over the past month compared to a 1.05% gain in the Sensex. This consistent underperformance over the last three years, coupled with a low ROCE and negative financial results, suggests that investor sentiment is weak, contributing to the stock's current downward trajectory.