European equities reversed sharp gains to finish firmly in the red on Thursday, following comments by Mario Draghi.
Asian stocks were mixed, as traders digested Chinese economic data and interest rate decisions from central banks in New Zealand and South Korea.
The euro rose to a three week-high against the dollar on Thursday, rallying from a six-week low.
Gold rebounded by 1 percent on Thursday as the euro bounced back from a six-week low against the dollar.
U.S. oil prices fell on Thursday, as refinery maintenance threatened to raise record inventories of crude.
U.S. stocks closed higher in low volume trade Wednesday, helped by a rise in oil prices, as investors awaited Thursday's European Central Bank decision on monetary policy.
U.S. stock index futures pointed to a sharply higher open, as markets started to digest the aggressive easing measures announced Thursday by the ECB.
U.S. government debt prices fell on Wednesday, supporting yields as oil prices bounced back and investors eyed a 10-year auction.
European stocks closed mostly higher on Wednesday, as investors eyed the fluctuation in commodity stocks.
Asian markets were mixed Wednesday, with China shares dropping, as analysts pointed to renewed investor concerns over the mainland's economy.
The euro held firm on Wednesday in choppy trading as investors awaited an European Central Bank meeting.
Gold fell on Wednesday as oil prices and world stock markets rose.
U.S. stock index futures indicated a higher open on Thursday as traders eyed a meeting of the European Central Bank in Frankfurt, Germany.
A huge draw in U.S. gasoline inventories last week convinced the market that energy demand was improving.
U.S. stocks closed lower Tuesday, as a reversal in oil prices weighed and after weaker-than-expected Chinese trade data renewed concerns about global growth.
European equities ended lower on Tuesday, after trade data out of China hit European miners hard and oil prices fell sharply.
China shares eked out gains Tuesday even as most Asian markets slipped, with traders digesting weaker-than-expected trade data from the mainland.
Goldman Sachs suggested the recent rally was unsustainable and as analysts expected another U.S. stockpile build.
Weak Chinese trade data stoked safe-haven demand for the yen on Tuesday.
U.S. stock index futures indicated a lower open on Tuesday as investors paused for breath after a recent rally.