U.S. tech stocks were lower again on Dec. 12 as investors continued to reassess the sector’s rapid run-up. Oracle (ORCL) shares sank 10.83% on Dec. 11 and slipped another 4.66% on Dec. 12, extending a sharp selloff that followed the company’s latest earnings report. The weakness, combined with Broadcom’s (AVGO) pullback despite delivering a solid quarter, has added to growing concerns of an AI bubble. Oracle, the 48-year-old cloud and database software company, reported quarterly results on Dec. 10 that ...