Why is Apollo Micro Sys falling/rising?

As of 26-Sep, Apollo Micro Systems Ltd is experiencing a decline in its stock price, currently at Rs 324.45, which represents a decrease of Rs 17.05 or 4.99%. The stock has underperformed its sector by 2.47% today and has been on a consecutive downward trend for the last two days, falling a total of 5.01%. Despite a strong long-term performance, with a remarkable 211.37% return over the past year and consistent positive results over the last eight quarters, the stock's recent movement is negatively impacted by a high valuation, as indicated by a ROCE of 12.9 and a PEG ratio of 2.9. Additionally, 38.61% of promoter shares are pledged, which can exert further downward pressure in a falling market.
In the broader market context, the stock's short-term performance has been notably weaker than the benchmark, with a 1-week return of -5.63% compared to the Sensex's -2.66%. This underperformance is compounded by a significant drop in investor participation, with delivery volume falling by 38.36% against the 5-day average. The electronics components sector, in which Apollo operates, has also seen a decline of 2.46%, reflecting broader market challenges that may be affecting investor sentiment and contributing to the stock's price decline.