Why is Aviva Industries falling/rising?

As of 23-Sep, Aviva Industries Ltd is experiencing a price increase, with its current price at 50.95, reflecting a change of 0.99 or 1.98% upward. The stock has outperformed its sector by 3.56% today, although it has shown erratic trading patterns, not trading on 4 out of the last 20 days. The stock's delivery volume has significantly decreased by 84.63% against the 5-day average, indicating falling investor participation. Despite this, the stock remains liquid enough for trading, as it is based on 2% of the 5-day average traded value. Over the past month, the stock has declined by 4.14%, while its 3-year return stands at an impressive 99.41%, suggesting a strong long-term performance despite recent volatility.
In the broader market context, the Sensex has decreased by 0.34% over the past week and has gained 5.07% year-to-date. While Aviva Industries has shown a short-term decline of 4.14% over the past month, it has outperformed the benchmark in today's trading. The stock's performance over the longer term, particularly the 3-year and 5-year returns, significantly surpasses that of the Sensex, which indicates that despite recent fluctuations, the stock has a strong historical performance that may attract investors looking for growth.