Why is Aster DM Health. falling/rising?

As of 19-Aug, Aster DM Healthcare Ltd's stock price is currently at Rs 618.10, reflecting a decrease of Rs 12.8 or 2.03%. Today's performance indicates that the stock has underperformed its sector by 2.18%, with an intraday low of Rs 615.65. Despite this decline, the stock has shown strong performance over the past year, generating a return of 56.22%, and has outperformed the BSE500 index over various time frames, including 1 year and 3 years. However, the company has faced significant challenges, including negative results for the last three consecutive quarters, with net sales declining by 44.99% and a drastic fall in profit after tax by 94.9%. Additionally, the company's weak long-term fundamental strength, characterized by a negative CAGR growth in operating profits and a high debt-to-EBITDA ratio, raises concerns about its profitability and ability to service debt.
In the broader market context, Aster DM Healthcare's short-term return of 2.46% over the past week surpasses the Sensex's return of 1.76%, indicating that the stock has been relatively resilient in the short term despite today's decline. However, the overall market sentiment may be affected by the company's high percentage of pledged promoter shares, which can exert additional downward pressure in a falling market. The stock's current valuation appears expensive given its low return on capital employed and the significant drop in profits over the past year, which could contribute to investor caution and the recent price decline.