Turnover was 1.63 billion rupees, up from 688.03 million rupees a day earlier, with stocks of 109 firms closing in the red against 62 gainers.
Foreigners brought 309 million rupees worth shares while selling 1.18 billion rupees of shares.
JKH closed 3.10 rupees lower at 219.40 rupees and Commercial Bank closed 1.60 rupees lower at 115.40 rupees, contributing most to the index negatively.
Lanka Orix Leasing Company closed 1.90 rupees lower at 63.10 rupees and Sri Lanka Telecom closed 50 cents lower at 38.10 rupees, also contributing the index fall.
Ceylinco Insurance closed 80.00 rupees higher at 1,400.00 rupees and DFCC closed 2.90 rupees higher at 122.00 rupees.
Dialog closed 10 cents higher at 9.00 rupees.
Hayleys closed 1.30 rupees lower at 290.00 rupees and Sampath Bank closed 10 cents lower at 171.20 rupees.
Ceylon Tobacco Company closed 1.40 rupees higher at 1,061.30 rupees and Distilleries closed 20 cents higher at 181.70 rupees.
Nestle Lanka closed 14.10 rupees higher at 1,939.20 rupees and Cargills Ceylon closed 50 cents higher at 152.50 rupees.
Bukit Darah closed 1.00 rupees lower at 690.00 rupees and Carson Cumberbatch closed flat at 385.00 rupees.
NDB closed flat at 152.00 rupees and Union Bank closed 30 cents lower at 16.80 rupees.
Commercial Leasing and Finance closed flat at 3.80 rupees.
Aitken Spence closed 50 cents lower at 113.60 rupees and Aitken Spence Hotel Holdings closed 1.40 rupees lower at 65.60 rupees.
Asian Hotels and Properties closed 2.00 rupees lower at 68.00 rupees.
Textured Jersey closed 20 cents lower at 15.50 rupees.
Touchwood closed up 10 cents to 3.80 rupees.
PCH Holdings closed 10 cents lower at 1.50 rupees and PC House also closed flat at 80 cents.