Why is Chemtech Indust. falling/rising?

As of 15-Sep, Chemtech Industrial Valves Ltd is experiencing a significant rise in its stock price, currently at Rs 114.80, reflecting an increase of Rs 11.8 or 11.46%. The stock has shown strong performance today, outperforming its sector by 11.31% and achieving a consecutive gain over the last two days with a total return of 12%. It reached an intraday high of Rs 116, indicating positive momentum. However, despite this recent uptick, the stock has a year-to-date decline of 46.68% and a one-year drop of 58.71%, suggesting that while it is currently rising, it has faced substantial challenges over a longer period. Additionally, there has been a notable decrease in investor participation, with delivery volume falling by 37.54% against the five-day average, which could indicate a lack of sustained interest.
In the broader market context, Chemtech's short-term performance over the past week shows a return of 14.63%, significantly outperforming the Sensex, which only increased by 1.24%. This contrast highlights the stock's recent recovery relative to the overall market. However, the year-to-date performance remains concerning, as the stock has underperformed the Sensex, which has gained 4.67% during the same period. The high volatility observed today, with an intraday volatility of 5.45%, further emphasizes the stock's fluctuating nature, suggesting that while there may be short-term gains, the long-term outlook remains uncertain.