U.S. stock-index futures were little changed as investors awaited Friday's speech from Federal Reserve Chair Janet Yellen for clues on when to expect higher borrowing costs.

Global Stocks:

Nikkei 16,597.30 +99.94 +0.61%

Hang Seng 22,820.78 -178.15 -0.77%

Shanghai 3,085.82 -3.88 -0.13%

FTSE 6,852.33 -16.18 -0.24%

CAC 4,449.92 +28.47 +0.64%

DAX 10,647.13 +54.25 +0.51%

Crude $47.29 (-1.68%)

Gold $1336.60 (-0.71%)