Why is Bajaj Finance falling/rising?

As of 19-Sep, Bajaj Finance Ltd's stock price is currently at Rs 993.00, reflecting a decrease of Rs 5.15 or 0.52%. The stock has underperformed its sector by 0.37% today and has been on a downward trend for the last two days, accumulating a total decline of 1.34%. Despite this recent dip, the stock has shown strong performance over the past month with a 10.03% increase and a remarkable 45.39% rise year-to-date. The company has demonstrated solid long-term fundamentals, with a consistent return on equity of 17.05% and impressive growth in net sales and operating profit. However, the stock is considered expensive with a high price-to-book value and a PEG ratio of 2.2, which may be contributing to the recent price decline.
Broader Market Context: In the context of the broader market, the Sensex has gained 0.88% over the past week, while Bajaj Finance has seen a slight decline of 1.02% during the same period. This indicates that the stock's recent performance is lagging behind the overall market trend. Additionally, while the stock has outperformed the market over the past year with a return of 30.81% compared to the Sensex's negative return of 0.67%, the current market conditions and the stock's high valuation may be causing investors to reassess their positions, leading to the recent price drop.