It's a combination of the over-valuation of Oracle - popping on the late stage of the AI bubble - and Ellison owning so much of Oracle.

Even after the recent drop, Oracle is trading for ~33 times last four quarters operating income. With their meh growth rate, fair value is closer to half that. Except we're in an AI bubble. Oracle is riding the tail of the AI bubble just as they popped to the moon toward the end of the dotcom bubble. Oracle will contract afterward accordingly. The stock probably won't see this era's highs again for another 20 years, if ever.