The joint SRX index of the bourses in Belgrade and Vienna backed off 1.25% to 312.13 on Thursday.
The Belgrade bourse's total turnover fell to 33 million dinars ($510,155/355,856 euro) from 43 million dinars on Wednesday. Trade in government securities accounted for 1.2 million dinars of turnover on Thursday, down from 3.0 million a day earlier.
Blue-chip lender Komercijalna Banka fell 2.62% to 33,500 dinars in the highest turnover of 10.7 million dinars.
Its blue-chip peer Privredna Banka was the biggest gainer on Thursday, adding 2.29% to 669 dinars.
Industrial gas producer Messer Tehnogas posted the biggest loss, dropping 6.96% to 5,210 dinars.
Thirteen stocks advanced on Thursday, 21 declined and 21 remained unchanged.
(1 euro=93.3946 Serbian dinars)