Why is Covance Softsol falling/rising?

As of 18-Jul, Covance Softsol Ltd's stock price is rising, currently at Rs. 23.04, reflecting an increase of Rs. 0.45 or 1.99%. The stock has been on an upward trend, gaining for the last 21 days and achieving a remarkable 50.79% return during this period. It has also reached a new 52-week and all-time high today. The stock is outperforming its sector by 2.09% and is trading above its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages. Despite a significant drop in delivery volume by 75% against the 5-day average, the company maintains a low debt-to-equity ratio and has shown healthy long-term growth, with net sales increasing at an annual rate of 66.30% and operating profit soaring by 1081.00%. However, the stock's performance over the past year has been flat, generating a return of 0.00%, despite profits rising by 870%.
In the broader market context, Covance Softsol's short-term return of +10.29% over the past week significantly outpaces the Sensex, which has declined by 0.90% during the same period. Additionally, the stock's impressive +53.70% return over the past month further highlights its strong performance relative to the benchmark, which has only increased by 0.38%. This divergence suggests that investor sentiment towards Covance Softsol is robust, despite the overall market conditions. The company's attractive valuation, indicated by a 0.4 price-to-book value and a return on equity of 13.3, supports the positive momentum in its stock price.