Mumbai, May 28 : After closing the previous day down 167 points or 0.68 percent on profit booking, the Sensitive Index (Sensex) of the Bombay Stock Exchange was trading flat Wednesday.

The key index, which opened at 24,591.61 points, against the previous day’s close at 24,549.51 points, was ruling at 24,548.14 points some three hours into trading, with a marginal loss of just 0.64 points.