Why is Inter State Oil falling/rising?

As of 12-Sep, Inter State Oil Carrier Ltd is experiencing a decline in its stock price, currently at 39.61, which reflects a decrease of 0.19 or 0.48%. The stock has underperformed its sector today by 0.28%, and it has shown erratic trading patterns, not trading on one day out of the last twenty. Despite a significant increase in delivery volume by 977.4% against the 5-day average, the stock's performance over the past month has been negative, with a return of -1.61%. While the stock has a very attractive valuation with a ROCE of 6.8 and is trading at a discount compared to peers, it also faces challenges such as a high Debt to EBITDA ratio of 3.15 times, indicating a low ability to service debt.
In the broader market context, the stock's short-term return of +6.14% over the past week contrasts with the Sensex's return of +1.48%, suggesting a stronger performance relative to the benchmark in the short term. However, the stock has underperformed over the longer term, with a year-to-date return of -15.72% compared to the Sensex's +4.82%. This disparity highlights the stock's struggles despite some positive factors, such as rising profits and a low PEG ratio of 0.2, which may not be sufficient to offset the concerns regarding long-term fundamental strength and debt levels.