CNBC Daily Open: It's a boom, it's a bubble, it's still not enough for investors: It's AI

Group 1: AI Investment and Market Trends - Investors are increasingly enthusiastic about artificial intelligence, despite concerns regarding high valuations in the sector [1] - The S&P 500, Dow Jones Industrial Average, and Nasdaq Composite all reached new intraday highs, driven by gains in technology stocks [2] - Nvidia's stock rose nearly 5%, while Microsoft saw an increase of approximately 2%, contributing to their market capitalizations exceeding $4 trillion [2] Group 2: Corporate Developments - Nvidia announced a significant $1 trillion investment in Nokia, aimed at advancing its AI initiatives [3] - Microsoft holds a 27% stake in OpenAI's for-profit business, positioning itself for substantial potential gains if AI becomes a sustainable revenue-generating sector [4] - OpenAI has completed its restructuring as a nonprofit with a controlling stake in its for-profit arm, indicating a strategic shift in its business model [4] Group 3: Future Outlook - Investors in technology are poised for significant returns, with expectations of a transformative technology revolution driven by AI, as noted by Cathie Wood of Ark Invest [5]