Real estate developer Mason Infratech's shares were listed at ₹88 apiece on NSE SME on Monday. This marks 37.5% premium to its issue price of ₹64. The ₹30.4-crore SME IPO, which opened for bidding on June 24 and closed on June 26, was subscribed 32.89 times. Ahead of market debut, its shares were trading at 15.6% premium in grey market.