BSE benchmark Sensex rose by over 27 points in range-bound opening trade on Tuesday. The 30-share Bombay Stock Exchange barometer, which lost over 111 points in the previous two sessions, recovered by 27.26 points, or 0.14 per cent, to 18,534.30 in the first few minutes of trade. Similarly, the broad-based National Stock Exchange Nifty index moved up by 2.70 points, or 0.05 per cent, to 5,569.75.