Why is Styrenix Perfor. falling/rising?

As of 19-Sep, Styrenix Performance Materials Ltd is experiencing a decline in its stock price, currently at 2,526.35, reflecting a decrease of 34.7 points or 1.35%. The stock has underperformed its sector by 0.69% today and has been on a consecutive downward trend for the last two days, resulting in a total drop of 2.38%. Additionally, the stock is trading below its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages, indicating a bearish trend. Despite a strong management efficiency with a high return on equity (ROE) of 29.21% and a healthy long-term growth rate in operating profit, the stock's recent performance has been hindered by falling investor participation, as evidenced by a 9.09% drop in delivery volume compared to the 5-day average.
In the broader market context, Styrenix's short-term performance has been notably weaker than the benchmark, with a 1-week return of -2.80% compared to the Sensex's gain of 0.88%. Over the past month, the stock has declined by 5.42%, while the Sensex has increased by 1.20%. Although Styrenix has shown consistent returns over the last three years and generated an 8.43% return in the past year, the recent negative momentum suggests that investor sentiment may be shifting. The stock's premium valuation relative to peers and its fair valuation metrics, including a price-to-book value of 5.2, may also be contributing to the current downward pressure as investors reassess their positions.