Forex Pros - Investor confidence in the euro zone declined significantly more-than-expected in June, industry data showed on Monday.
In a report, market research group, Sentix said its index of investor confidence tumbled to 3.5 in June, compared to May's reading of 10.9.
Analysts had expected the index to decline to 8.6 in June.
On the index, a level above 0.0 indicates optimism, below indicates pessimism.
Following the release of the data, the euro was down against the U.S. dollar, with EUR/USD edging 0.07% lower to hit 1.4626.
Meanwhile, European stock markets were down. The EURO STOXX 50 slumped 0.6%, France's CAC 40 fell 0.55%, Germany's DAX shed 0.3%, while the FTSE 100 dipped 0.35%.