KEY POINTS
  • IBM closed its $34 billion acquisition of Red Hat, the companies announced Tuesday.
  • The acquisition of Red Hat, an open-source, enterprise software maker, marks the close of IBM's largest deal ever.
  • The move was originally announced in October, when the companies said IBM would buy all shares in Red Hat at $190 each in cash.

IBM closed its $34 billion acquisition of Red Hat, the companies announced Tuesday.

Shares of IBM were down less than 1% in late-morning trading.