Microsoft (MSFT.US) returns to the U.S. investment-grade bond market after 9 years, plans to raise $25 billion to ramp up AI investment.

Zhitong Finance APP has learned that Microsoft (MSFT.US) is seeking to raise at least $25 billion through its first U.S. investment-grade bond issuance in more than nine years, joining rivals' financing rush to raise funds to support the artificial intelligence (AI) investment boom.