Stock futures slip; results lift Home Depot in premarket

By Ryan Vlastelica NEW YORK (Reuters) - U.S. stock index futures edged lower on Tuesday, with investors finding few reasons to buy following a rally that took the S&P 500 to an all-time intraday high. * SolarCity Corp , the largest residential solar installer in the United States, said it expects to install fewer panels in a seasonally weak first quarter due to cold weather.

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