Atlantic's stocks fell 2.86% to a close of 1,360 kuna, ZSE data showed.
At the other end, car parts maker AD Plastic [ZSE:ADPL] led the blue-chip gainers, rising 1.38% to close at 147 kuna.
Out of the ZSE's ten blue-chip companies, five ended Tuesday's session lower, two closed higher and three ended flat.
Hrvatski Telekom [ZSE:HT] generated the largest turnover among the blue chips - of 1.3 million kuna, closing down 0.28% at 176.50 kuna.
ZSE's total trading turnover dropped to 8.2 million kuna ($1.3 million/1.1 million euro) on Tuesday from 10.3 million kuna on Monday.
The bourse's 25-share benchmark CROBEX index lost 0.34% to 1,690.23 after adding 0.63% on Monday.
The narrower of the ZSE's two blue-chip indices, the CROBEX10, which tracks the leading companies in terms of free float, market capitalisation and liquidity, fell 0.50% to 1,055.11 on Tuesday after gaining 0.97% on Monday.
(1 euro = 7.56051 kuna)