Why is Polychem falling/rising?

As of 15-Sep, Polychem Ltd's stock price is currently at 2,500.00, reflecting an increase of 20.0 or 0.81%. The stock has shown a trend reversal today after experiencing six consecutive days of decline, reaching an intraday high of Rs 2,545, which is a 2.62% increase. Despite this positive movement today, the stock has underperformed in the short term, with a 1-week return of -4.94% compared to the Sensex's +1.24%. The company maintains a low debt-to-equity ratio, which is favorable, and the majority shareholders are promoters, indicating stability in ownership. However, the stock's performance over the past month and year has been negative, with returns of -3.85% and -11.21%, respectively.
In the broader market context, Polychem's recent performance contrasts sharply with the benchmark Sensex, which has shown positive returns over the same periods. While the stock has gained today, its longer-term performance indicates a struggle, particularly when compared to the Sensex's YTD return of +4.67%. The rising investor participation, evidenced by a significant increase in delivery volume, suggests a potential shift in sentiment, but the stock's overall liquidity remains adequate for trading. This combination of factors indicates that while there may be short-term gains, the stock's longer-term outlook is still challenged compared to the broader market.