Why is Atmastco Ltd falling/rising?

As of 11-Sep, Atmastco Ltd's stock price is currently at 213.25, reflecting a decrease of 10.25, or 4.59%. The stock has underperformed its sector by 4.37% today, and its delivery volume has fallen by 19.35% compared to the 5-day average, indicating a decline in investor participation. Over the past week, the stock has decreased by 8.38%, and year-to-date, it has dropped by 21.90%. Unfortunately, there is no information available regarding positive or negative factors that could further explain the stock's recent movement.
In the broader market context, the Sensex has shown a positive return of 1.10% over the past week, contrasting sharply with Atmastco Ltd's significant decline. This underperformance is evident as the stock has not only fallen in the short term but also over the past month and year, with returns of -4.93% and -28.83%, respectively. The stark difference between the stock's performance and the benchmark indicates a challenging environment for Atmastco Ltd, contributing to its current price decline.