Why is A B B falling/rising?

As of 08-Aug, ABB India Ltd's stock price is currently at Rs 5,021.25, reflecting a decrease of Rs 95.15 or 1.86%. The stock has underperformed its sector by 0.36% today and has experienced a trend reversal, falling after two consecutive days of gains. It touched an intraday low of Rs 5,005, marking a decline of 2.18%. Over the past week, the stock has dropped by 6.97%, and its year-to-date performance shows a significant decline of 27.43%. Despite having strong long-term fundamentals, including a low debt-to-equity ratio and high return on capital employed, recent financial results indicate a decline in profitability, with a 20.3% drop in profit after tax for the quarter. This has contributed to a perception of the stock being overvalued, as indicated by its high price-to-book value ratio.
In the broader market context, ABB India Ltd has underperformed compared to the benchmark Sensex, which has seen a decline of only 0.92% over the past week. The stock's performance over the last year is particularly concerning, with a return of -36.73%, significantly worse than the BSE500's negative return of -1.79%. This stark contrast highlights the stock's struggles in the current market environment, exacerbated by falling investor participation and lower trading volumes. The combination of disappointing quarterly results and a lack of investor confidence has led to the stock's continued decline.