Softbank has dumped its entire $5.83 billion stake in AI chip supplier Nvidia as it pours more resources into its “all-in” bet on Sam Altman’s OpenAI. The Japanese investment giant, led by CEO Masayoshi Son, sold all of its 32.1 million Nvidia shares in October, according to an earnings statement released Tuesday. Softbank also sold part of its $9.17 billion stake in telecom giant T-Mobile. When asked about the Nvidia sale, Softbank’s chief financial officer Yoshimitsu Goto pointed to the