Why is Archean Chemical falling/rising?

As of 22-Jul, Archean Chemical Industries Ltd is currently priced at 688.00, reflecting a decline of 12.15 or 1.74%. The stock has underperformed its sector today by 1.49% and has experienced a trend reversal, falling after two consecutive days of gains. In terms of returns, the stock has decreased by 1.48% over the past week and 2.55% over the past year, while it has shown a positive return of 8.78% over the past month. Despite a high management efficiency indicated by a return on capital employed (ROCE) of 28.54% and a low debt-to-equity ratio, the stock's recent performance has been negatively impacted by a significant drop in investor participation, with delivery volume falling by 31.95% against the five-day average.
In the broader market context, the Sensex has decreased by only 0.47% over the past week, indicating that Archean's short-term performance is lagging behind the benchmark. While the stock has shown some resilience with a year-to-date increase of 2.70%, it still trails the Sensex's year-to-date return of 5.18%. The high institutional holdings at 34.12% suggest that informed investors are backing the company, as their stake has increased by 0.62% over the previous quarter. However, the combination of falling investor participation and recent price declines indicates that the stock is currently facing challenges in maintaining upward momentum.