Market research group Sentix released its investor confidence index for the Eurozone on Monday. The index increased to 18.5 in July from 17.1 in June, missing expectations for a decline to 18.7.
A reading above 0.0 indicates optimism, below indicates pessimism.
The index rose despite the uncertainty over the Greek debt crisis.
The current conditions index jumped to 14.5 in July from 11.8 in June. It was the highest level since July 2011.
The expectations index fell to 22.3 in July from 22.5 in June.
German investor confidence index remained unchanged at 26.8 in July.