Why is RDB Rasayans falling/rising?

As of 15-Sep, RDB Rasayans Ltd is experiencing a price increase, currently at Rs 164.55, which reflects a rise of Rs 4.05 or 2.52%. Today, the stock opened with a gain of 2.77% and reached an intraday high of Rs 171, marking a 6.54% increase. However, despite this positive movement, the stock has shown a decline of 2.17% over the past month and a slight decrease of 2.14% over the past year. The stock's performance today has outpaced its sector by 1.99%, but there has been a notable drop in investor participation, with delivery volume falling by 34.18% compared to the five-day average. The company maintains a low debt-to-equity ratio and has shown an increase in profits by 11.6% over the past year, contributing to a fair valuation despite trading at a premium compared to peers.
In the broader market context, the Sensex has increased by 1.24% over the past week and 1.47% over the past month, indicating that RDB Rasayans' short-term performance is lagging behind the benchmark. Year-to-date, the stock has gained 3.82%, which is less than the Sensex's 4.67% increase. While the stock has performed well over the long term, with a 52.08% increase over three years and a remarkable 321.38% over five years, the recent decline in delivery volume and the stock's underperformance relative to the benchmark suggest a cautious outlook among investors.