US stocks ended mixed as worries about the US-China trade dispute offset news that the US central bank does not plan any interest rate rises this year.
Shares on Wall Street gains made earlier in the session after a report that the US and China are in dispute over some measures to end their trade war.
US stocks rally in late trade, but gains are limited as Boeing and Facebook shares take a hit as both face regulatory threats.
Stocks rally in Europe after the UK Parliament backs the latest plan put forward by Prime Minister Theresa May, this time to delay leaving the European Union.
Share markets across Europe and the US fall after the European Central Bank does an about-face on potential rate rises, sending the euro plunging against major currencies and the Australian dollar down against the greenback.
US stocks fall in late trade, despite the most recent economic growth figures showing the world's biggest economy growing much faster than most analysts expected.
Wall Street is cautious and the Australian dollar lower after the US trade representative said there was a lot of hard work ahead for the US and China to reach a trade deal.
US stocks retreat from a rally in late trade at the end of a volatile session, despite the Federal Reserve chairman reiterating that official US interest rates will remain on hold for now.
The Australian dollar is up on the latest US-China trade truce, as are US stocks, but the local share market is not poised to follow.
A surprise slump in US pre-Christmas retail sales renews fears the world's biggest economy is joining a worsening global economic slowdown and sinks Wall Street.