MSCI's global share index rose 0.2 percent to 433.59 points, its highest since June 2015
Oil and commodities firms gained the most as oil and metal prices rose
Last month the curve traded as low as 73 basis points, the flattest since 2007
The dollar's weakness gave gold a leg up, with the precious metal gaining 0.9% to $1,352.26 an ounce
Wall Street looked set to open flat to higher on Wednesday with futures on the Dow Jones, S&P and Nasdaq up around 0.1 per cent
Tuesday's surprise interest rate cut in Australia and downgraded growth and inflation forecasts from the European Commission also weighed
Japan's Nikkei sank 3.5% in its steepest daily fall since mid-February, dragging down shares across Asia