Mumbai, July 15 - A key index of the Indian equities markets continued to trade in the green Wednesday as investors bought into realty, metal and capital goods stocks. Around noon, it was ruling 121 points higher than its last closing figure.

The 30-scrip benchmark index of the Bombay Stock Exchange (BSE), the Sensex, which opened higher at 13,917.27 points, was at 13,975.64 points -- 121.94 points or 0.88 percent higher than Tuesday's closing figure.

Around the same time, the S&P CNX Nifty of the National Stock Exchange (NSE) too was ruling in the green, 0.84 percent up at 4,145.75 points.

Broader market indices were doing better with the BSE midcap index trading 2.39 percent higher and the BSE smallcap index moving up 2.56 percent.

All but two of the 13 sectoral indices on the BSE were ruling in the positive terrain, with those for realty, metal and capital goods stocks gaining the most. On the other hand, FMCG and IT stocks saw some selling.