Why is Apollo Micro Sys falling/rising?

As of 15-Oct, Apollo Micro Systems Ltd is experiencing a decline in its stock price, currently at Rs 291.20, which reflects a decrease of Rs 9.95 or 3.3%. The stock has been underperforming, having fallen consecutively for the last four days, resulting in a total decline of 12.3% during this period. Today's trading saw the stock touch an intraday low of Rs 287.8, and it has underperformed its sector by 3.56%. Despite a strong performance year-to-date with a return of 152.34%, the stock's recent movement is influenced by its high valuation metrics, including a ROCE of 12.9 and a PEG ratio of 2.6, which may deter investors. Additionally, 38.61% of promoter shares are pledged, adding pressure in a declining market.
In the broader market context, the stock's short-term performance has significantly lagged behind the benchmark, with a 1-week return of -12.22% compared to the Sensex's gain of 1.02%. While the stock has shown impressive long-term growth, outperforming the BSE500 over the last three years, the recent downturn highlights investor concerns regarding its valuation and the risks associated with pledged shares. The rising investor participation, indicated by a 66.24% increase in delivery volume, suggests some interest despite the current price decline, but overall, the stock's recent performance reflects a challenging environment.