U.S. stock-index futures were little changed as investors awaited a speech by Federal Reserve Chair Janet Yellen for cues on the timing of higher interest rates.

Global markets:

Nikkei 15,539.19 -47.01 -0.30%

Hang Seng 25,112.23 +118.13 +0.47%

Shanghai Composite 2,240.81 +10.35 +0.46%

FTSE 6,772.89 -4.77 -0.07%

CAC 4,259.08 -33.85 -0.79%

DAX 9,360.8 -40.73 -0.43%

Crude oil $93.52 (-0.49%)

Gold $1279.50 (+0.32%)