Why is Astec Lifescienc falling/rising?

As of 24-Jun, Astec Lifesciences Ltd's stock price is currently at Rs 822.55, reflecting an increase of Rs 60.1 or 7.88%. The stock has shown a strong performance today, outperforming its sector by 7.14% and achieving a consecutive gain over the last three days, with a total return of 11.61% during this period. Despite this positive short-term movement, the stock has experienced significant underperformance over the longer term, with a year-to-date decline of 18.15% and a staggering 55.86% drop over the past three years. The recent rise in stock price may be attributed to increased promoter confidence, as they have raised their stake in the company by 4.12%, indicating a belief in the company's future prospects. However, the company has faced negative results over the last four quarters, including a substantial decline in net sales and profitability, which raises concerns about its long-term viability.
In the broader market context, Astec Lifesciences Ltd has outperformed the benchmark Sensex in the short term, with a 1-week return of 6.33% compared to the Sensex's 0.58%. However, the stock's long-term performance remains concerning, as it has consistently underperformed against the benchmark over the past three years, with a return of -55.86% compared to the Sensex's gain of 55.62%. This juxtaposition highlights the stock's volatility and the challenges it faces despite recent gains, suggesting that while short-term movements may be positive, the underlying fundamentals present significant risks for investors.