Why is PNB Housing falling/rising?

As of 21-Aug, PNB Housing Finance Ltd is experiencing a decline in its stock price, currently at 803.10, which reflects a decrease of 5.75 or 0.71%. The stock has underperformed its sector by 0.38% today and has been on a consecutive downward trend for the last two days, resulting in a total drop of 1.78%. Over the past week, the stock has shown a positive return of 4.71%, but it has significantly underperformed over the past month with a decline of 26.17%. Despite the company declaring positive results for the last 11 consecutive quarters, including record net sales and profit growth, the stock's long-term growth prospects appear poor due to a negative annual growth rate in net sales of -0.50%. Additionally, while the stock has a favorable valuation and high institutional holdings, the falling investor participation, as indicated by a 16.49% drop in delivery volume, may be contributing to the recent price decline.
In the broader market context, PNB Housing's short-term performance has outpaced the benchmark Sensex, which has only increased by 1.74% over the past week. However, the stock's year-to-date performance shows a decline of 8.74%, contrasting with the Sensex's gain of 4.94%. This disparity highlights the stock's struggles despite positive fundamentals and institutional support. The overall market sentiment may be weighing on the stock, especially given its recent underperformance relative to both its sector and the broader market, which could be influencing investor confidence and participation negatively.