CNBC Daily Open: Investors suffer from whiplash as AI stocks gyrate CNBCStocks Tumble as Early Rally Gives Way to Tech Anxiety The New York TimesStock market today: Dow, S&P 500, Nasdaq futures stall with Wall Street set to end roller-coaster week Yahoo FinanceCNBC Daily Open: From AI enthusiasm to bubble worries in one day CNBCGoldman’s Flood Sees ‘Extreme’ Focus on Hedging Driving Selloff Bloomberg.com