Why is Siel Fin. Serv. falling/rising?

As of 25-Aug, Siel Financial Services Ltd is experiencing a price increase, currently at 19.94, reflecting a change of 0.39 or 1.99% upward. The stock has shown strong performance recently, gaining 49.92% over the last 21 days and outperforming its sector by 1.65% today. However, despite these short-term gains, the company has a negative book value and weak long-term fundamentals, with net sales and operating profit growth stagnating at 0% over the past five years. Additionally, the stock is considered risky due to a negative EBITDA and a significant decline in promoter confidence, as they have reduced their stake by 10.6% in the last quarter.
In the broader market context, Siel Financial Services Ltd has outperformed the benchmark Sensex in the short term, with a 1-week return of 10.29% compared to the Sensex's 0.45%. However, the stock has significantly underperformed over the longer term, with a year-to-date return of -53.14% against the Sensex's 4.48%. This stark contrast highlights the volatility and risks associated with the stock, particularly given its historical performance and the recent drop in investor participation, which may indicate a lack of confidence in its future prospects.