Turnover was 1.1 billion rupees.
Asiri Hospital Holdings was the most actively traded stock, with over two million shares donw, closing at 9.60 rupees, down 2.10.
Colombo Land & Development Company was also heavily traded, with 1.6 million shares done. It closed at 61.50 rupees, up 70 cents.
Lanka Securities said Colombo Land & Development was the top contributor to the market turnover followed by Brown & Company and National Development Bank.
"Alufab emerged as the top gainer of the day with heavy trading," they said.
HVA Foods was also among the actively traded stocks with over a million shares changing hands and closing at 35.60 rupees, down 1.70.
There were two crossings or off-market private deals of National Development Bank of 200,000 shares at 137 rupees each and 300,000 shares at 135 rupees. It closed at 137, up a rupee.