Mumbai, June 11 -- Hindustan Zinc Ltd is up for a fifth straight session today. The stock is quoting at Rs 537.1, up 0.57% on the day as on 12:44 IST on the NSE. The benchmark NIFTY is up around 0.38% on the day, quoting at 25199.55. The Sensex is at 82711.36, up 0.39%. Hindustan Zinc Ltd has gained around 23.49% in last one month. Meanwhile, Nifty Metal index of which Hindustan Zinc Ltd is a constituent, has gained around 7.28% in last one month and is currently quoting at 9509.7, up 0.56% on the day. The volume in the stock stood at 30.01 lakh shares today, compared to the daily average of 43.29 lakh shares in last one month. The benchmark June futures contract for the stock is quoting at Rs 533.9, up 0.52% on the day. Hindustan Zinc Lt...