Hindustan Zinc shares reached a 16-month high, trading at Rs 656.35, driven by a surge in silver prices crossing $80 per ounce. Silver's increasing contribution to the company's earnings, projected to reach 45% by FY27, is a key factor. Despite the rally, some analysts suggest profit-booking led to a subsequent dip in the stock. Analysts remain positive, citing the company's strong position in silver and zinc markets.