Why is Sumitomo Chemi. falling/rising?

As of 12-Sep, Sumitomo Chemical India Ltd's stock is currently priced at 553.50, reflecting a decline of 15.6 points or 2.74%. The stock has been underperforming, having fallen consecutively for the last two days, with a total decrease of 3.54% during this period. Additionally, the stock's performance today has underperformed its sector by 3.62%. In terms of returns, the stock has shown a negative trend over the past week and month, with declines of 3.02% and 6.79%, respectively, while it has a year-to-date increase of 3.46%. Despite having a high management efficiency indicated by a return on equity of 19.61% and a low debt-to-equity ratio, the stock's recent price movement suggests investor concerns, possibly due to falling delivery volumes and its performance relative to moving averages.
Broader market context indicates that while the Sensex has gained 1.48% over the past week and 2.08% over the past month, Sumitomo Chemical's stock has not followed this upward trend, highlighting a significant divergence. The stock's year-on-year performance also shows a decline of 6.48%, contrasting with the Sensex's slight decrease of 1.28%. This underperformance relative to the benchmark may reflect broader market sentiment or specific challenges faced by the company, despite its strong operational metrics and majority ownership by promoters.