President Mario Draghi expected to announce extension to quantitative easing programme past March 2017.
A Reuters poll showed that most analysts expect the ECB to keep interest rates unchanged.
Yen rallies over 2.5% against the dollar as Bank of Japan disappoints investors.
The ECB has said it will wait for at least another six weeks before deciding on the stimulus.
The ECB President played down fears over the impact of Brexit saying markets have been resilient.
US data-backed price support for the oil markets proven to be short-lived and precious metals also declined.
Euro holds steady against dollar after the ECB keeps monetary policy unchanged as expected
Brexit could limit amount of government bonds available for purchase to the ECB.
Regulators reportedly demanded updates from major banks' trading desks every six hours following the vote.
Jake van der Kamp lambasts the ECB and says the European project has not followed its own rules.
Europe to see deep shockwaves whichever way the vote goes says independent consultancy.
ECB and Bank of England would negotiate opening of lines to allow swapping of euros and sterling after vote.
Negative deposit rates have come under criticism by banks and investors, particularly in Germany.
European Central Bank leaves headline interest rate unchanged at 0.00% and deposit rate at -0.40%.
ECB widely expected to keep rates on hold but what will Mario Draghi say?
Edmund Shing explains why you should invest in UK banking group Lloyds.
New measures by the ECB means Eurozone banks are catching up with British peers.
The European Central bank expanded its asset purchasing programme by €20bn to €80bn a month.
Market volatility and increased stress in the banking sector are worrying signs of deterioration in Europe.
Draghi extended the QE programme in December but did not increase the amount spent on assets.
The minutes revealed Ian McCafferty was the only member of the MPC to go against the grain.
Budget passes 153-145 after bitter debate in Greek parliament.