Why is Natco Pharma falling/rising?

As of 29-Sep, Natco Pharma Ltd. is experiencing a decline in its stock price, currently at Rs 797.75, which reflects a decrease of Rs 23.05 or 2.81%. The stock has been underperforming, having lost 9.85% over the last six days, and it has consistently traded below its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages. Additionally, the stock's performance over the past week shows a decline of 7.73%, while it has fallen 42.48% year-to-date. Despite a high management efficiency indicated by a return on equity (ROE) of 15.57% and a low debt-to-equity ratio, the stock's negative performance has overshadowed these positives, particularly with a significant drop in returns over the past year.
In the broader market context, Natco Pharma's recent performance contrasts sharply with the Sensex, which has seen a modest increase of 2.85% year-to-date. The stock's underperformance is evident as it has lagged behind the benchmark in both the short-term and long-term periods. While there has been a rise in investor participation, with delivery volume increasing significantly, the overall sentiment remains negative due to flat results in recent quarters and a history of poor returns compared to the BSE500. This combination of factors has contributed to the stock's downward trajectory amidst a generally stable market environment.