Why is Nucleus Soft. falling/rising?

As of 12-Sep, Nucleus Software Exports Ltd is experiencing a decline in its stock price, currently at 1,027.50, which reflects a decrease of 7.8 points or 0.75%. The stock has underperformed its sector by 0.95% today and has seen a trend reversal after three consecutive days of gains. While the stock has shown a positive return of 1.36% over the past week and 2.80% over the past month, it has significantly underperformed on a year-to-date basis with a return of -22.45%. Additionally, the stock's delivery volume has decreased by 6.93% compared to the five-day average, indicating falling investor participation. Despite a high management efficiency reflected in a return on equity (ROE) of 18.29% and a low debt-to-equity ratio, the stock is trading at a premium compared to its peers, which may be contributing to its recent price decline.
In the broader market context, the Sensex has shown a slightly better performance than Nucleus Software, with a 1.48% increase over the past week and a 2.08% increase over the past month. The stock's year-to-date performance of 0.99% is notably lower than the Sensex's 4.82%, indicating that while the market has been generally favorable, Nucleus Software has struggled to keep pace. This underperformance, combined with the recent drop in investor participation and the stock's premium valuation, suggests that market sentiment may be cautious regarding the company's future prospects despite its operational efficiencies.