Why is Apollo Micro Sys falling/rising?

As of 24-Sep, Apollo Micro Systems Ltd is experiencing a price increase, currently at Rs 341.55, which reflects a rise of 3.55 or 1.05%. The stock has shown strong performance recently, with a 2-day consecutive gain of 2.78% and is currently trading close to its 52-week high, just 3.84% away from Rs 354.65. Over the past month, the stock has surged by 45.22%, significantly outperforming the Sensex, which has only increased by 0.50%. The company has demonstrated healthy long-term growth, with an annual operating profit growth rate of 30.83% and a net profit increase of 109.73%. However, it is important to note that 38.61% of promoter shares are pledged, which could pose risks in a falling market. In the broader market context, while Apollo Micro Systems has outperformed the benchmark Sensex in the short term, with a 1-week return of 0.46% compared to the Sensex's decline of 1.18%, the overall market sentiment appears to be mixed. The stock's liquidity remains adequate, allowing for trades of significant size, but there has been a notable decline in investor participation, with delivery volume dropping by 48.97% against the 5-day average. Despite the stock's impressive returns over the last year and three years, the high valuation metrics and pledged shares could create downward pressure if market conditions worsen.