Why is Torrent Pharma falling/rising?

As of 18-Sep, Torrent Pharmaceuticals Ltd. is currently priced at 3,558.10, reflecting a slight increase of 4.3 points or 0.12%. The stock has been gaining for the last three days, with a total return of 0.77% during this period. Despite this recent uptick, the stock has underperformed its sector by 0.93% today. Over the past week, it has seen a decline of 0.48%, and over the past month, a decrease of 2.78%. However, the company has demonstrated strong fundamentals, including a high return on capital employed (ROCE) of 22.33%, a low debt to EBITDA ratio of 1.26, and consistent positive results over the last eight quarters, which may support investor confidence and contribute to its recent price movement.
In the broader market context, the Sensex has risen by 1.80% over the past week and 2.14% over the past month, indicating that while Torrent Pharmaceuticals has shown some resilience with a year-to-date return of 6.04%, it has lagged behind the benchmark in the short term. The stock's performance over the last three years has been impressive, with a return of 140.84%, significantly outperforming the Sensex's 41.08%. The rising investor participation, as evidenced by a 17.46% increase in delivery volume, suggests that there is interest in the stock despite its recent underperformance relative to the market.