The 20-share benchmark CROBEX added 0.70% to close at 2.434,93 points.
The narrower equity index CROBEX10, which tracks the top ten issuers in terms of free float, market capitalisation and liquidity, advanced 1.35% to end at 1,482.57 points.
Podravka was the most traded company with a turnover of 482,000 euro ($526,000) as its shares soared 4.93% to close at 149 euro.
Hrvatski Telekom [ZSE:HT] was the second most liquid stock with a turnover of 265,000 euro as its shares ended flat at 26.60 euro.
The regular bourse turnover reached 5.1 million euro from 3.1 million euro on Wednesday due to a 3.7 million euro trading with government bonds.
($ = 0.916 euro)