The Colombo benchmark All Share Price Index closed 28.02 points higher at 7,234.92, up 0.39 percent. The S&P SL20 closed 29.38 points higher at 4,018.98, up 0.74 percent.
Turnover was 2.52 billion rupees, down from 2.90 billion rupees a day earlier with 130 stocks closed positive against 79 negative.
John Keells Holdings closed 1.10 rupees lower at 256.70 rupees with three off-market transactions of 114.89 million rupees changing hands at 258.00 rupees per share contributing 5 percent of the turnover.
The aggregate value of all off-the-floor deals represented 15 percent of the turnover.
Chevron Lubricants Lanka closed 1.00 rupee lower at 344.00 rupees with market transactions of 270.70 million rupees contributing 10 percent of the daily turnover.
Richard Pieris and Company closed 20 cents higher at 9.30 rupees and Access Engineering closed 50 cents higher at 29.00 rupees, attracting most number of trades during the day.
Foreign investors bought 828.48 million rupees worth shares while selling 632.16 million rupees worth shares.
Bukit Darah closed 19.00 rupees higher at 725.00 rupees and Hemas Holdings closed 3.20 rupees higher at 59.00 rupees, contributing most to the index gain.
Carson Cumberbatch closed 6.70 rupees higher at 447.70 rupees and CT Holdings closed 6.50 rupees higher at 160.00 rupees.
Commercial Bank of Ceylon closed 2.00 rupees higher at 158.90 rupees.