Why is Deep Polymers falling/rising?

As of 18-Jul, Deep Polymers Ltd's stock price is currently at 56.86, reflecting a decrease of 0.61 or 1.06%. The stock has recently experienced a trend reversal, falling after two consecutive days of gains. Today's performance is in line with the sector, but the stock's delivery volume has significantly decreased by 43.53% compared to the 5-day average, indicating falling investor participation. Over the past week, the stock has shown a positive return of 3.19%, while its performance over the last month is even stronger at 8.30%. However, the stock has underperformed the benchmark over the longer term, with a year-to-date return of -17.08% and a one-year return of -29.01%. Despite having a low debt-to-equity ratio and healthy long-term growth in net sales and operating profit, the stock's profitability is hindered by poor management efficiency and a low return on capital employed.
In the broader market context, the stock's recent short-term performance contrasts with the Sensex, which has declined by 0.90% over the past week. While Deep Polymers has shown some resilience in the short term, its consistent underperformance against the benchmark over the last three years raises concerns among investors. The stock's valuation appears attractive compared to its peers, but the negative results reported in the latest financials, including a significant drop in profit after tax and a low return on capital employed, contribute to the overall bearish sentiment surrounding the stock.