Railway-linked shares were buzzing in trade on September 15, bucking the subdued sentiment seen across the broader market. Stocks including Rail Vikas Nigam (RVNL), Ircon International, Titagarh Rail, Jupiter Wagons, Texmaco Rail and Indian Railway Finance Corporation (IRFC) rose in the range of 2-8%, driven by a steady flow of new contracts and a positive sector outlook.