Why is Exide Inds. falling/rising?

As of 10-Sep, Exide Industries Ltd is currently priced at 422.35, reflecting a decline of 4.35 points or 1.02%. The stock has underperformed its sector by 1.37% today and has experienced a consecutive fall over the last two days, resulting in a total decrease of 1.18% during this period. Despite this recent downturn, the stock has shown positive returns over the past month, increasing by 12.49%, although it has a negative return of 11.81% over the past year. The company benefits from a low debt-to-equity ratio of 0.03 times and high institutional holdings at 28.87%, indicating strong support from knowledgeable investors, which may help stabilize the stock despite its current decline.
In the broader market context, Exide Industries' short-term performance over the past week shows a gain of 0.86%, which is slightly lower than the benchmark Sensex's increase of 1.06%. While the stock has performed well over a longer timeframe, such as a 3-year return of 146.70% compared to the Sensex's 36.18%, the recent drop in investor participation, with a 20.22% decline in delivery volume against the 5-day average, suggests a potential lack of confidence among retail investors. This combination of factors indicates that while the stock has strong fundamentals, its recent price movement is influenced by short-term selling pressure and reduced trading activity.