Why is Hindustan Zinc falling/rising?

As of 22-Aug, Hindustan Zinc Ltd's stock price is currently at 425.00, reflecting a decrease of 5.6, or 1.3%. The stock has shown a trend reversal, falling after four consecutive days of gains. It is trading below all key moving averages, indicating a bearish sentiment. Additionally, there has been a significant drop in investor participation, with delivery volume falling by 39.18% compared to the five-day average. Over the past year, the stock has underperformed the market, with a return of -18.06% compared to the Sensex's slight gain of 0.31%. Despite a high dividend yield of 4.42%, the company's poor long-term growth, as evidenced by a -2.83% annual decline in operating profit over the last five years, raises concerns among investors.
In the broader market context, while the Sensex has shown a positive return of 0.88% over the past week, Hindustan Zinc's stock has declined by 0.35% in the same period, indicating a relative weakness. The company's high valuation, with a PEG ratio of 0.7 and a significant percentage of promoter shares pledged (92.26%), adds to the downward pressure on the stock price, particularly in a falling market. Furthermore, the stock's performance has been significantly worse than the broader market, as it has generated negative returns while the market has remained relatively stable. This combination of factors contributes to the stock's current decline.