Why is Shelter Pharma falling/rising?

As of 16-Oct, Shelter Pharma Ltd's stock price is currently at Rs 43.99, reflecting an increase of Rs 2.0 or 4.76%. Today's performance indicates that the stock opened with a gain of 2% and reached an intraday high of Rs 43.99. Additionally, the stock has outperformed its sector by 4.51%. Despite this positive movement, the stock has shown a decline of 1.87% over the past week and a significant year-to-date drop of 21.15%. The recent rise in investor participation, with a delivery volume increase of 130.77% against the 5-day average, suggests a growing interest in the stock, although there is no available information on positive or negative factors impacting its recent movement.
Broader market context shows that while Shelter Pharma has experienced a short-term increase, it has underperformed compared to the Sensex, which has gained 1.58% over the past week. The stock's year-to-date performance is notably weaker than the benchmark's 6.82% increase, indicating that despite today's rise, the overall trend for Shelter Pharma remains concerning when viewed in the context of broader market movements.