BUZZ-Nvidia, AI stocks rebound as markets assess DeepSeek

Updates after markets open

** Shares of U.S.-listed companies linked to artificial intelligence recovered ground in choppy trading after a steep slump in the previous session

** Selloff in global technology shares eases after Monday's rout, sparked by Chinese startup DeepSeek's launch of a free AI assistant

** Despite day's rebound, continued volatility likely as investors question the dominance of U.S. AI companies and the need for expensive chips

** AI darling Nvidia NVDA.O rises 2.5% after slumping 17% on Monday and losing $593 billion from its market value, a record one-day loss for any company

** Nvidia shares briefly turned negative when markets opened before turning higher

** Chip stocks mixed: Broadcom AVGO.O reverses premarket gains to trade 0.6% lower, Philadelphia SE Semiconductor Index .SOX down 0.9%

** U.S.-listed shares of Taiwan Semiconductor Manufacturing TSM.N up 2.4%, Marvell Technology MRVL.O gains 2.3%, U.S. listing of Arm Holdings ARM.O up 1%

** Apple AAPL.O jumps 4%

** Alphabet GOOGL.O gains 1.4%, Microsoft MSFT.O up 1.7%, Meta Platforms METAO> rises 2.2%

** Software company Oracle ORCL.N up 2.8%, Palantir Technologies PLTR.O rises 4.4%

** C3.ai AI.N up 4.3%, cloud computing provider Arista Networks ANET.N gains 2%

** AI server maker Super Micro Computer SMCI.O down 3.5% after 12.6% drop on Monday