Why is ION Exchange falling/rising?

As of 12-Sep, Ion Exchange (India) Ltd is experiencing a decline in its stock price, currently at Rs 415.70, which reflects a decrease of Rs 1.85 or 0.44%. The stock has underperformed its sector by 1.35% today and is close to its 52-week low, being only 3.52% away from Rs 401.05. Over the past week, the stock has fallen by 0.35%, and its performance over the last month shows a significant decline of 5.63%. Despite a high management efficiency indicated by a return on equity (ROE) of 22.67% and a low debt-to-equity ratio, the stock has generated a negative return of 37.55% over the past year, which is considerably worse than the broader market's decline of 1.28%. The company’s net sales and operating profit growth rates of 14.09% and 15.86% over the last five years suggest poor long-term growth potential, contributing to investor concerns.
In the broader market context, the Sensex has shown a positive return of 1.48% over the past week and 2.08% over the past month, contrasting sharply with Ion Exchange's recent performance. The stock's decline is further emphasized by its significant underperformance compared to the market, as it has fallen much more than the BSE500's negative return of 3.45% in the last year. While there has been a rise in investor participation, with a notable increase in delivery volume, the overall sentiment remains cautious due to the company's disappointing financial metrics and the recent trend reversal after two days of gains.