Why is Stellant Secu. falling/rising?

As of 24-Sep, Stellant Securities (India) Ltd is experiencing a price increase, currently at 171.90, reflecting a rise of 3.35 or 1.99%. The stock has shown strong performance recently, gaining 17.02% over the last eight days and outperforming its sector by 2.08% today. Despite a significant decline of 69.14% over the past month, the stock has delivered impressive returns of 316.53% over the last year, significantly outperforming the broader market, which has seen a negative return of 3.77%. Positive financial results, including a higher profit after tax and strong quarterly earnings, have contributed to this upward momentum, although the stock is noted to have a very expensive valuation with a high price-to-book ratio.
Broader Market Context: In the short term, Stellant Securities has outperformed the benchmark Sensex, which has declined by 1.18% over the past week while the stock itself has risen by 10.33%. This contrast highlights the stock's resilience and market-beating performance, especially in a challenging market environment where the BSE500 index has generated negative returns of -5.32% over the last year. However, it is important to note that there has been a significant drop in investor participation, with delivery volume decreasing by 80.54% against the five-day average, which could indicate potential concerns about sustainability in the stock's upward trajectory.