Why is ASM Technologies falling/rising?

As of 17-Sep, ASM Technologies Ltd's stock price is currently at Rs 4,219.85, reflecting a decrease of Rs 103.9, or 2.4%. The stock has been underperforming recently, having fallen consecutively for the last three days, resulting in a total decline of 3.55%. Despite this short-term downturn, the stock has shown impressive long-term performance, with a 1-year return of 179.21% and a staggering 664.53% over the past three years. However, today's trading activity indicates a lack of investor participation, with delivery volume dropping significantly by 57.04% compared to the 5-day average. While the company has demonstrated strong financial health with a low Debt to EBITDA ratio and impressive growth in net sales and operating profit, its current valuation appears expensive, which may be contributing to the recent price decline.
In the broader market context, ASM Technologies has outperformed the benchmark Sensex in both the short and long term, with a 1-week return of 4.72% compared to the Sensex's 1.56%. However, the stock's recent performance has lagged behind its sector by 3.05%, indicating a potential shift in market sentiment. Despite the company's strong fundamentals and consistent positive results over the last five quarters, the recent decline in stock price may reflect broader market dynamics or investor caution regarding its high valuation relative to peers.