Why is Thyrocare Tech. falling/rising?

As of 24-Sep, Thyrocare Technologies Ltd is experiencing a price increase, currently at 1,208.50, reflecting a change of 6.4 (0.53%) upwards. Today's price summary indicates that the stock has outperformed its sector by 1.15%. However, there is a notable decline in investor participation, with delivery volume falling by 59.93% against the 5-day average. Despite this, the company has demonstrated strong financial performance, including a high return on equity (ROE) of 20.45% and significant net profit growth of 56.61%. The stock has consistently delivered positive results over the last six quarters, contributing to its strong year-to-date return of 32.41% and a one-year return of 42.03%. Nonetheless, the stock's valuation appears expensive, with a price-to-book value of 11.7, and 100% of promoter shares are pledged, which could pose risks in a declining market.
Broader market context shows that while Thyrocare Technologies has outperformed the Sensex in the long term, its short-term performance has been less favorable, with a 1-week return of +0.12% compared to the Sensex's -1.18%. This indicates that the stock is currently holding up better than the broader market, which may be contributing to its recent price rise. However, the overall market sentiment appears to be weak, as evidenced by the Sensex's decline, which could impact future performance if the trend continues.