Stock futures are edging higher after a four-day sell-off that shaved more than 300 points off the Dow Jones industrial average.

U.S. markets are bucking global indexes, which continued to be hammered Tuesday by the prospect of a retreat by the Federal Reserve from aggressive monetary policies that have flooded markets with cash.

Dow Jones industrial futures are up 20 points to 15,022. S&P futures have added 2.8 points to 1,647.70. Nasdaq futures are up 5.5 points to 3,076.

The Fed's bond-buying program has kept interest rates low and lured investors to developing markets in Asia and elsewhere. It is those markets taking a hit in recent days.

U.S. futures are getting a lift from retailers Tuesday. Home Depot and Best Buy topped Wall Street expectations before the opening bell.

[Associated Press]

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