Turnover was 688.03 million rupees, up from 571.79 million rupees a day earlier, with stocks of 113 firms closing in the red against 47 gainers.
Foreigners brought 459 million rupees worth shares while selling 456 million rupees of shares.
Ceylon Tobacco Company closed 45.80 rupees lower at 1,059.90 rupees and Dialog closed 20 cents lower at 8.90 rupees, contributing most to the index negatively.
Index heavy JKH closed 1.30 rupees lower at 222.50 rupees, also contributing the index fall, ahead of a 15 percent fall in quarterly earnings reported after the market closed.
Nestle Lanka closed 13.20 rupees lower at 1,925.10 rupees.
Cargills Ceylon closed 6.60 rupees higher at 152.00 rupees and Bukit Darah closed 5.40 rupees higher at 691.00 rupees.
Distilleries closed 50 cents lower at 181.50 rupees and Sri Lanka Telecom closed 10 cents lower at 38.60 rupees.
Lanka Orix Leasing Company closed flat at 65.00 rupees and Carson Cumberbatch closed flat at 385.00 rupees.
DFCC closed 10 cents lower at 119.10 rupees and Commercial Bank closed 50 cents higher at 117.00 rupees.
NDB closed flat at 152.00 rupees and Union Bank closed 20 cents lower at 17.10 rupees.
Ceylinco Insurance closed 19.90 rupees higher at 1,320.00 rupees and Commercial Leasing and Finance closed 10 cents lower at 3.80 rupees.
Aitken Spence closed 1.00 rupees higher at 114.10 rupees and Aitken Spence Hotel Holdings closed 1.00 rupees higher at 67.00 rupees.
Asian Hotels and Properties closed flat at 70.00 rupees. Touchwood ended down 20 cents to 3.70 rupees.
PCH Holdings closed 10 cents lower at 1.60 rupees and PC House also closed 10 cents lower at 80 cents.