Characterize the news's sentiment using the following options.
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Berkshire Hathaway Inc. started buying more shares of Activision Blizzard Inc. since Microsoft Corp. announced its plan to acquire the videogame maker in January and now has a 9.5% stake, Warren Buffett said Saturday at Berkshire's annual meeting. Buffett said those purchases were his decision and are a bet that the deal will close.
positive