According to @CNBC, Oracle (ORCL) shares dropped about 11% in U.S. premarket trading, dragging AI-related equities lower ahead of the open. According to @CNBC, the coverage references AI names such as Nvidia (NVDA) and CoreWeave as part of the broader pressure in AI-exposed stocks, and @CNBC did not cite any immediate reaction in cryptocurrencies such as BTC or ETH.