Financial giant Fidelity bumped up the valuation of two Elon Musk-owned companies, social media platform X and AI startup xAI in October.

Elon Musk's artificial intelligence company, xAI, reportedly reached a valuation of $50 billion just 16 months after its founding in July 2023. It is now worth more than what the billionaire paid for Twitter.

xAI is looking to compete in an increasingly crowded AI space dominated by companies including OpenAI, Anthropic, and Big Tech companies including Google and Microsoft. Apple, the world's largest tech company, has also entered the AI space with its gradual launch of Apple Intelligence on some of its devices.

Fidelity marked up the value of its X Holdings shares by 32.37% in October, the largest monthly increase since helping Elon Musk buy the company in 2022. The big picture: Even with the valuation boost,

Fidelity has raised the estimated value of its stake in Elon Musk’s X (formerly Twitter) by 32.37% in October, according to an Axios report. Despite the boost, the social media platform is still valued at nearly 72% less than the $44 billion Musk paid to acquire it in 2022.

Fidelity marked up the value of its holdings in Elon Musk's X by 32.37% in October, Axios reported Sunday, possibly boosted by the social media's stake in xAI.  Despite the markup, Fidelity still values the platform formerly known as Twitter at a 72% discount to the $44 billion Musk purchased it for in 2022.