关键词：Microsoft Corp,Amazon.com Inc,Alphabet Inc,Oracle Corp,CNBC Magnificent 7 Index,ARK Venture Fund,Kratos Defense and Security Solutions Inc,ARK Innovation ETF ,Palantir Technologies Inc,商业新闻
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关键词：Microsoft Corp,Amazon.com Inc,Alphabet Inc,Oracle Corp,CNBC Magnificent 7 Index,ARK Venture Fund,Kratos Defense and Security Solutions Inc,ARK Innovation ETF ,Palantir Technologies Inc,商业新闻