Sam Altman’s Business Buddies Are Getting Stung

As investors start to take sides in the AI race, Sam Altman’s buddies are getting burned.

SoftBank Group Corp.’s shares have tumbled 40% from late October, while Oracle Corp.’s stock has given up all gains made since early September, when the legacy database software company all of a sudden got an AI halo after announcing a $300 billion computing deal with OpenAI Inc. The trio are partners in the $500 billion Stargate AI infrastructure project, which aims to build data centers across the US. In addition, in March, SoftBank’s Chairman Masayoshi Son managed to strike a venture capital deal with Altman, promising to invest $30 billion by year-end.

Smart money

Investors are now questioning the ChatGPT maker’s dominance after Alphabet Inc. released its newest multipurpose Gemini 3 model — which won glowing reviews — as well as how a weakened OpenAI may affect its partners’ businesses.

Valuing OpenAI at $500 billion, SoftBank’s stake in the unicorn accounts for just over 20% of its net asset value, or NAV. But what if OpenAI is not worth that much? It would be a substantial hit to the Japanese conglomerate. In the September quarter, SoftBank reported its best earnings in three years, thanks to a $12.8 billion fair value gain from its OpenAI shares. That will have to be reversed if the startup can’t maintain its current valuation at future funding rounds.

As an investment management company, SoftBank is assessed based on its NAV. One key metric investors pay attention to is how liquid its portfolio is and how quickly SoftBank can distribute cash back to shareholders. Currently, private holdings, including the 11% OpenAI stake, account for about 36% of SoftBank’s NAV, versus 21% at the beginning of the year, according to Bloomberg Intelligence.