Four major Artificial Intelligence companies are reportedly planning to raise more capital than the entire U.S. IPO market has in the past five years, prompting investor consideration.

Major investment funds are significantly increasing their exposure to artificial intelligence (AI) companies and stocks. This includes Bill Ackman's hedge fund, which has allocated 38% of its $15 billion stock portfolio to AI, and Carmel's AI-heavy portfolio, which has added Garrett Motion.

Nvidia is investing billions in two artificial intelligence (AI) companies that are now set to join the S&P 500 index.