European shares edged up as Sweden's central bank announced an expansion of its bond buying program. It was the first reaction to the ECB's hints of more easing in December. The news pushed Swedish main stock index OMXS30 up 0.21%. The Swedish crown fell to a two-month low against Euro, before recovering to 1.0893.

Britain's FTSE 100 rose 37 points, or 0.58% to 6,402, helped by strong quarterly results for some UK companies. Germany's DAX rose 57 points, or 0.55% to 10,750, helped by Volkswagen reporting better than expected results. France's CAC 40 gained 19 points, or 0.39% to 4,866.

Wall Street opened up ahead of Fed, with Dow Jones rising 40 points, or 0.23% to 17,620. S&P 500 gained 2 points, or 0.11% to 2,068. NASDAQ fell however, giving up 8 points, or 0.17% to 5,020.

Dollar retreated a bit as investors bite the nails ahead of Fed, with the dollar index DXY falling 0.26% to 96.66. It fell to a five-day low against Euro at 1.1076. It slid for the third day against Yen to 120.34. It rose however to a two-week high against the battered Sterling to 1.5285.

Oil gained ground, with Brent futures for December rising 51 cents, or 1.09% to $47.32 a barrel. U.S. oil futures gained 55 cents, or 1.27% to $43.75 a barrel.

The rise in oil helped Canadian dollar gain ground, to trade at C$1.3200 per dollar. Australian dollar fell however as prospects of policy easing intensify, it last traded at a three-week low at $0.7133.

Spot gold rose $15, or 1.30% to $1,181 an ounce. Silver gained 40 cents, or 2.52% to $16.28 an ounce.