(Reuters) -Futures for Wall Street’s main indexes were higher on Monday, kicking off a packed week that includes AI giant Nvidia’s earnings and resumption of government data releases, while Alphabet jumped after Berkshire Hathaway disclosed a stake in the company.

Google-parent Alphabet gained 5.6% in premarket trading after Berkshire Hathaway revealed a new $4.3 billion stake in the company and further reduced its stake in Apple.

Apple shares, down 0.3%, lagged most megacap and growth stocks.

Nvidia’s shares inched 0.4% higher ahead of its quarterly earnings after markets close on Wednesday. The company has been a bellwether for AI-related stocks that have propped up several tech names in this year’s Wall Street rally.

At 5:02 a.m. ET, S&P 500 E-minis were up 29.5 points, or 0.44%, Na

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