Why is C P C L falling/rising?

As of 23-Jul, Chennai Petroleum Corporation Ltd's stock price is currently at 775.15, reflecting a decrease of 11.85, or 1.51%. The stock has underperformed its sector today by 2.24%, having touched an intraday low of Rs 769.05. Despite this decline, the stock has shown positive performance over the past week and month, with returns of 3.46% and 10.11%, respectively. However, it has significantly underperformed over the past year, with a return of -21.64%. The company's management efficiency is highlighted by a high return on capital employed (ROCE) of 23.43%, but recent financial results indicate a concerning trend, with a 50.59% decline in profit after tax over the last six months and a low ROCE of 4.35%. Additionally, there has been a decrease in institutional investor participation, which may contribute to the stock's recent struggles.
In the broader market context, while the stock has shown positive returns over shorter periods, it has lagged behind the benchmark index, the BSE500, which has generated a return of 1.79% over the past year. This underperformance, coupled with falling institutional interest, suggests that investor sentiment may be cautious. The stock's attractive valuation relative to peers and its healthy long-term growth potential could provide some support, but the recent negative trends in profitability and investor participation are likely weighing on its price movement.