Why is Bharat Immunolog falling/rising?

As of 08-Sep, Bharat Immunological & Biological Corporation Ltd's stock price is currently at 22.07, reflecting a decrease of 0.42, or 1.87%. The stock has underperformed its sector today by 1.74%. While it has shown positive returns over the past week and month, with increases of 2.41% and 3.08% respectively, it has significantly underperformed on a year-to-date basis, down 7.23%, and over the past year, down 21.74%. The stock is currently trading higher than its 5-day and 20-day moving averages but lower than its 50-day, 100-day, and 200-day moving averages. Additionally, there has been a notable decline in investor participation, with delivery volume dropping by 60.63% compared to the 5-day average, indicating reduced interest in the stock.
In the broader market context, the stock's short-term performance has outpaced the benchmark Sensex over the past week and month, which saw gains of 0.53% and 1.16% respectively. However, the stark contrast in longer-term performance is evident, as the stock has declined significantly over the past three and five years, while the Sensex has risen substantially during the same periods. This divergence suggests that while there may be some short-term optimism, the overall trend for Bharat Immunological remains negative, compounded by falling investor participation and a lack of positive factors to support a sustained recovery.