The U.S. dollar traded mixed against the most major currencies. The greenback remained supported by expectation that the Fed will start to hike its interest rate this year.

There will be released no major economic reports in the U.S. today.

The euro traded lower against the U.S. dollar after the weaker-than-expected German consumer inflation data. German preliminary consumer price index remained flat in December, missing expectations for a 0.1% gain.

On a yearly basis, German preliminary consumer price index decreased to 0.2% in December from 0.6% in November, missing forecasts for a decline to 0.4%. That was the lowest level since October 2009.

These figures has added to concerns that the Eurozone could slip into deflation.

Investors speculate that the European Central Bank could decide on its policy meeting on January 22 to purchase government bonds.

Speculation on quantitative easing measures by the European Central Bank and political uncertainty in Greece also weighed on the euro. There is speculation that Greece could leave the Eurozone. Greeks will elect new parliament later this month.

The Sentix investor confidence index for the Eurozone increased to 0.9 in January from -2.5 in December. Analysts had expected the index to climb to -0.9.

The British pound traded lower against the U.S. dollar due to the weaker-than-expected construction data from the U.K. Markit's and the Chartered Institute of Purchasing & Supply's construction purchasing managers' index (PMI) for the U.K. fell to 57.6 in December from 59.4 in November, missing expectations for a decline to 59.2. The U.K. construction sector expanded at the slowest pace in 17 months.

The Swiss franc traded lower against the U.S. dollar. The manufacturing purchasing managers' index in Switzerland rose to 54.0 in December from 52.1 in November, exceeding expectations for a rise to 52.9.

The New Zealand dollar rose against the U.S. dollar. In the overnight trading session, the kiwi decreased against the greenback in the absence of any major reports from New Zealand.

The Australian dollar traded higher against the U.S. dollar. In the overnight trading session, the Aussie decreased against the greenback in the absence of any major reports from Australia.

The Japanese yen rose against the U.S. dollar. In the overnight trading session, the yen traded mixed against the greenback. Japan's final manufacturing purchasing managers' index (PMI) fell to 52.0 in December from 52.1 in November.