Turnover was 486.36 million rupees, down from 603.23 million rupees a day earlier, with stocks of 89 firms closing in the red against 74 gainers.
Commercial Bank closed 20 cents higher at 115.00 rupees with four off market transactions totalling 163 million rupees contributing to 33 percent of total turnover.
Foreigners brought 125 million rupees worth shares while selling 199 million rupees of shares.
Sri Lanka Telecom closed 90 cents lower at 37.30 rupees and Carson Cumberbatch closed 8.10 rupees lower at 372.00 rupees, contributing most to the index drop. Aitken Spence closed 90 cents lower at 111.60 rupees and Aitken Spence Hotel Holdings closed 2.70 rupees lower at 65.60 rupees.
Commercial Leasing and Finance closed 10 cents lower at 3.80 rupees.
DFCC closed 2.30 rupees higher at 122.30 rupees and Union Bank of Colombo closed 1.00 rupee higher at 17.40 rupees.
Lanka Tiles closed 5.50 rupees higher at 74.50 rupees. Lanka Orix Leasing Company closed 50 cents higher at 64.00 rupees and JKH closed 20 cents higher at 218.00 rupees.
JKH’s W0022 warrants closed 90 cents lower at 60.00 rupees and JKH’s W0023 warrants closed 20 cents lower at 65.00 rupees.
Ceylon Tobacco Company closed 1.90 rupees lower at 1,058.10 rupees and Nestle Lanka closed flat at 1,900.00 rupees.
NDB closed 50 cents higher at 152.00 rupees.
Hayleys closed 30 cents lower at 293.00 rupees and Sampath Bank closed 70 cents lower at 165.30 rupees.
Dialog Axiata closed flat at 9.00 rupees and Ceylinco Insurance closed 18.00 rupees lower at 1,282.00 rupees.
Asian Hotels and Properties closed flat at 69.80 rupees and Lion Brewery closed flat at 340.00 rupees.
Bukit Darah closed 1.00 rupee lower at 674.00 rupees and Cargills Ceylon closed flat at 150.00 rupees.