Why is Aavas Financiers falling/rising?

As of 15-Sep, Aavas Financiers Ltd. has seen its stock price rise to 1,677.55, reflecting an increase of 43.25 or 2.65%. The stock has been gaining for the last four days, with a total return of 5.85% during this period, outperforming its sector by 1.21%. Despite this positive short-term performance, the stock has underperformed over the past year, generating a return of -9.12%. The company's strong long-term fundamentals, including an average Return on Equity (ROE) of 12.54% and healthy growth in net sales and operating profit, are somewhat overshadowed by concerns regarding its valuation, as it trades at a high Price to Book Value of 3.5 and has a PEG ratio of 1.7. Additionally, the increase in pledged promoter shares, now at 54.05%, raises concerns about potential downward pressure on the stock price in a falling market.
In the broader market context, Aavas Financiers has outperformed the benchmark Sensex in the short term, with a weekly return of +5.33% compared to the Sensex's +1.24%. However, the stock's long-term performance has been disappointing, with a -24.18% return over the last three years, indicating consistent underperformance against the benchmark. While the stock's recent gains may suggest a positive sentiment, the overall trend of underperformance and the high proportion of pledged shares could lead to caution among investors, particularly in a volatile market environment.