Why is SMS Pharma. falling/rising?

As of 17-Sep, SMS Pharmaceuticals Ltd is currently priced at 284.25, reflecting a decrease of 1.1, or 0.39%. The stock has been underperforming, having fallen for the last four consecutive days, resulting in a total decline of 5.88% during this period. Despite this recent downturn, the stock has shown strong performance over longer periods, with a 21.16% increase over the past month and a remarkable 228.23% rise over the last three years. However, the stock's delivery volume has significantly decreased by 81.81% compared to the five-day average, indicating a drop in investor participation, which may contribute to the recent price decline.
In the broader market context, SMS Pharmaceuticals Ltd has outperformed the Sensex benchmark over the past week and month, with returns of 6.06% and 21.16%, respectively, compared to the Sensex's 1.56% and 2.60%. However, the stock's year-to-date performance of 18.51% contrasts with the Sensex's 5.83%, suggesting a strong relative performance in the longer term despite the recent short-term challenges. The overall market sentiment may be influencing the stock's price movement, as it continues to trade above its moving averages, indicating potential support levels, yet the declining investor interest could be a concern for future price stability.