Why is Petro Carbon falling/rising?

As of 18-Aug, Petro Carbon & Chemicals Ltd is experiencing a price increase, currently at 179.45, reflecting a change of 3.0 or 1.7% upward. The stock has outperformed its sector today by 4.69%, although it is noted that investor participation is declining, with delivery volume on 14 August falling by 34.78% compared to the 5-day average. In terms of returns, over the past week, the stock has risen by 2.28%, while it has shown a modest increase of 0.79% over the past month. However, on a year-to-date basis, the stock is down 14.87%, indicating a longer-term struggle despite recent positive movements.
Broader Market Context: In comparison to the benchmark Sensex, which has increased by 1.19% over the past week, Petro Carbon's short-term performance is stronger. The Sensex has shown a decline of 0.37% over the past month, while Petro Carbon has managed a slight gain. Despite the recent uptick, the stock's year-over-year performance is significantly negative at -34.46%, contrasting sharply with the Sensex's modest gain of 1.37%. This suggests that while there may be short-term positive momentum, the stock faces ongoing challenges in the broader market landscape.