Shares of Keystone Realtors rose nearly 7% today after Plutus Wealth Management purchased 17.1 lakh shares or 1.5% stake in the Rustomjee Group company at an average price of Rs 555.03 per share on NSE. The transaction was worth Rs 94.91 crore. Keystone Realtors stock surged 6.85% to Rs 596 today against the previous close of Rs 557.80 on BSE. Market cap of the firm rose to Rs 6,454.57 crore. Total 1.42 lakh shares changed hands amounting to a turnover of Rs 8.16 crore on BSE. On Thursday, Keystone Realtors stock listed at a 2.60 per cent premium to its issue price of Rs 541 per share.