Why is EP Biocomposites falling/rising?

As of 11-Sep, EP Biocomposites Ltd's stock price is currently at 123.05, reflecting a decrease of 11.8, or 8.75%. The stock has underperformed significantly today, opening with a loss of 8.79% and touching an intraday low of Rs 123. The performance over the past week shows a decline of 10.12%, and the year-to-date return stands at a negative 28.04%. Additionally, the stock has experienced erratic trading, not trading on two days out of the last twenty, and there has been a notable drop in investor participation, with delivery volume falling by 50% against the five-day average. Unfortunately, there is no information available regarding positive or negative factors that could explain the stock's recent movement.
Broader Market Context: In comparison to the benchmark Sensex, which has gained 1.03% over the past week and 4.36% year-to-date, EP Biocomposites' performance has been considerably weaker. The stock's significant decline of 10.12% in the last week contrasts sharply with the benchmark's positive return, indicating a lack of investor confidence and a potential disconnect from broader market trends. This underperformance highlights the challenges faced by EP Biocomposites in attracting investor interest amidst a generally rising market.