Why is GPT Healthcare falling/rising?

As of 18-Aug, GPT Healthcare Ltd is experiencing a decline in its stock price, currently at Rs 158.60, which represents a decrease of Rs 2.0 or 1.25%. Today's price summary indicates that the stock has underperformed its sector by 1.9%, with an intraday low of Rs 157.25, reflecting a drop of 2.09%. Over the past week, the stock has shown a positive return of 2.36%, but it has struggled over the longer term, with a 1-month decline of 5.60% and a year-to-date drop of 13.24%. Despite having a high management efficiency with a return on capital employed (ROCE) of 28.30% and a low debt-to-equity ratio of 0.02, the stock's performance has been hindered by a significant decrease in investor participation, as evidenced by an 83.35% drop in delivery volume compared to the 5-day average.
In the broader market context, while the Sensex has increased by 0.83% over the past week, GPT Healthcare's performance has lagged behind, indicating a relative weakness in the stock compared to the overall market. The stock's year-to-date performance of -13.24% contrasts sharply with the Sensex's gain of 4.01%, highlighting a significant underperformance. Although the company has shown a profit increase of 5% over the past year, the stock's negative return of -7.25% suggests that market sentiment may be weighing heavily on its valuation, despite its attractive metrics such as a PEG ratio of 6.1 and a price-to-book value of 5.3, which indicate that it is trading at a discount compared to its peers.