Oracle's shares fell 3 percent after it announced it would raise up to $50 billion to expand AI infrastructure, CNBC reported on Sunday.

As the company disclosed a large fundraising plan to expand data centres and attract AI companies, investor concerns are growing as talk also emerges about possible layoffs, CNBC said.

Oracle plans to raise $45 billion to $50 billion this year to meet demand from cloud customers such as Nvidia, Meta, OpenAI, AMD, TikTok and xAI. Oracle is reviewing layoffs of 20,000 to 30,000 employees, and this could secure $8 billion to $10 billion in cash flow, a TD Cowen analyst said.

Oracle has continued aggressive investment to expand AI infrastructure, including issuing $18 billion of bonds and signing a $300 billion contract with OpenAI.

Michael Field (마이클 필드), a senior analyst at Morningstar, said investors are watching to see whether Oracle and Microsoft succeed with their big bets as they go all-in on AI. He pointed out that Oracle's approach of diluting existing shareholders and increasing debt is unsettling investors.

Microsoft also fell 10 percent on concerns about slowing growth in its cloud business, while Meta rose 8 percent after announcing increased AI investment.