European market closed mostly up on Wednesday, as the prospect of a Federal Reserve rate hike buoyed U.S. financial shares.

Minutes of the Fed's April 26 - 27 meeting are due out at 2 p.m. local time.

In Europe, the European Central Bank is moving in the opposite direction on rates. European Union data out earlier showed consumer prices in the Eurozone and European Union were down 0.2% on the year in April, after prices stagnated in March.

The FTSE 100 ended the day 0.03% down at 6,165.80.

Shares in ARM Holdings (ARMH) rose 1.9% today, after the chip maker announced it paid $350 million to buy Apical, a U.K.-based imaging products manufacturer. ARM is the producer of processors for Apple iPhones.

Miners dragged down the index today, with Anglo American losing more than 3.5% and Antofagasta (ANFGY)    down almost 3%. Antofagasta slid after its chairman Jean-Paul Luksic said that he expects "another year or two of low copper prices."

Burberry (BURBY) (BBRYF) was one of the biggest losers on the index today, closing 2.7% after it warned of challenging times ahead. The luxury goods maker announced plans to cut operating costs by 10% over the next three years. Burberry also announced it will begin a £150 million ($216.2 million) share buyback.

Banking stocks jumped today after several polls on the 'Brexit' referendum showed the remain camp had widened its lead. Analysts have pointed out that banks have been the biggest defenders of staying in the European Union.

Royal Bank of Scotland (RBS) , Standard Life (SLFPY) and Barclays (BCS) all rose around 4%.

In Frankfurt, the Dax was up 0.54% to close at 9,943.23 and the Cac 40 closed at 4,319.30, 0.51% up in Paris.

In Helsinki. Nokia (NOK - Get Report) share price was up 2.9% after it announced that Nokia brand mobile phones would be given a new lease of life. Microsoft (MSFT - Get Report) sold its Nokia feature phone business to HMD today in a $350 million deal.