Why is Astec Lifescienc falling/rising?

As of 18-Jul, Astec Lifesciences Ltd is experiencing a decline in its stock price, currently at Rs 896.40, which reflects a decrease of Rs 10.6 or 1.17%. The stock has underperformed its sector by 0.97% today and has seen a consecutive fall over the last two days, resulting in a total decline of 3.51%. Despite opening with a gain of 3.56% and reaching an intraday high of Rs 939.3, the stock's performance has been lackluster, with a year-to-date return of -10.81% and a significant drop of -31.18% over the past year. The company's fundamentals are concerning, highlighted by a negative operating cash flow and a substantial decline in net sales and profits over the last four quarters. Although promoters have increased their stake by 4.12%, indicating confidence in the company, the overall financial health remains weak, with a high debt-to-EBITDA ratio and negative EBITDA.
In the broader market context, the stock's short-term return of +0.23% over the past week contrasts with the Sensex, which has declined by 0.90% in the same period. However, the stock's long-term performance has been poor, with a staggering -56.78% return over the last three years compared to a +49.96% return for the benchmark. This consistent underperformance against the benchmark, coupled with the company's negative financial results and high debt levels, contributes to a negative sentiment surrounding the stock, making it a risky investment despite some positive signals from promoter confidence.