Why is C P C L falling/rising?

As of 25-Jul, Chennai Petroleum Corporation Ltd's stock price is currently at 687.35, reflecting a decline of 73.65 points or 9.68%. The stock has been underperforming, having fallen consecutively for the last three days, resulting in a total drop of 12.66% during this period. Additionally, it has underperformed its sector by 8.3% today. The stock's performance over the past week shows a significant decline of 11.82%, while it has experienced a year-to-date increase of 9.70%. However, the one-year return is notably negative at -32.62%. Contributing to this decline are negative financial results reported for June, with a substantial drop in profit before tax and profit after tax compared to previous quarters, alongside a decrease in institutional investor participation.
In the broader market context, the stock's recent performance contrasts sharply with the benchmark, as it has underperformed the Sensex, which only fell by 0.36% over the past week. While the stock has shown some resilience over a longer timeframe, with a 145.57% increase over three years, its recent volatility and declining investor confidence indicate a more precarious position. The stock's liquidity remains adequate, but the significant drop in delivery volume suggests waning interest from investors, further exacerbating its current challenges in the market.