Why is SMS Pharma. falling/rising?

As of 22-Aug, SMS Pharmaceuticals Ltd is experiencing a decline in its stock price, currently at Rs 237.10, which reflects a decrease of Rs 2.9 or 1.21%. Today's price summary indicates that the stock opened lower, with a gap down of 2.08%, and reached an intraday low of Rs 235. The stock has underperformed its sector by 1.55% today, and there has been a notable drop in investor participation, with delivery volume falling by 37.81% compared to the 5-day average. Over the past month, the stock has decreased by 2.69%, while its year-to-date performance shows a slight decline of 1.15%. Despite a significant 195.27% increase over the past three years, the stock has faced challenges, including a 22.39% drop over the last year, even as profits rose by 28.4%.
In the broader market context, SMS Pharmaceuticals Ltd's short-term performance of +1.13% over the past week has outpaced the Sensex, which gained 0.88%. However, the stock's longer-term performance is concerning, as it has underperformed the benchmark over the past month and year. The company is currently trading at a discount compared to its peers' average historical valuations, which could suggest a fair valuation despite the recent price decline. The positive factors, such as a return on capital employed (ROCE) of 11.5 and a PEG ratio of 1.3, indicate potential for recovery, but the current market sentiment and declining trading volume are contributing to the stock's downward movement.