Oracle shares fell more than 10% in after-hours trading on Wednesday after the company reported revenues below Wall Street estimates. The tech giant posted $16.06 billion for its fiscal quarter ending in November, missing the $16.21 billion forecast. Revenue grew 14% overall, with Oracle Cloud Infrastructure (OCI), its AI business, booming with a 68% sales jump. However, this strong AI showing failed to ease fears about an AI bubble among investors. In September, Oracle struck a major $300 billion, five-year deal with OpenAI, the maker of ChatGPT. This deal helped Oracle shares hit new highs, and chairman Larry Ellison briefly became the world's richest man after the announcement. Despite this, Oracle's stock has dropped 40% since then. Still, it remains up over a third since the start of the year. Ellison issued a cautious statement, saying, "There are going to be a lot of changes in AI technology over the next few years and we must remain agile in response to those changes." He stressed Oracle's "chip neutrality" policy, stating, "We will continue to buy the latest GPUs from Nvidia, but we need to be prepared and able to deploy whatever chips our customers want to buy." Market analysts are concerned about Oracle’s deep partnership with OpenAI amid questions about OpenAI's profitability. Jacob Bourne, analyst at Emarketer, said, "Oracle's earnings arrive as investors weigh whether its massive OpenAI partnership might mean overexposure with a customer currently in the spotlight over profitability concerns." Oracle also faces scrutiny over its large debt, having raised a record $18 billion in bonds to build data centers. Bourne added, "Although Oracle's shares are buoyed by its September surge, this revenue miss will likely exacerbate concerns among already cautious investors about its OpenAI deal and its aggressive AI spending." The Ellison family, supporters of US President Donald Trump, recently bought Paramount and aim to acquire Warner Brothers Discovery.