Alphabet's share price plunges on traffic drop testimony / Alphabet Analyst Says 'Complete Breakup' Needed for Stock Gains / Alphabet faces 'watershed moment' if AI erodes search dominance, analysts say / Stocks making the biggest moves midday: Alphabet, Disney, Arista Networks, Super Micro and more / Here are Thursday's biggest analyst calls: Nvidia, Apple, Uber, Alphabet, Disney, Netflix, Carvana, Arm, Nike & more / Stock Bounce Wanes Before Fed as Alphabet Tumbles: Markets Wrap.com / Alphabet shares sink 7% after Apple's Cue says AI will replace search engines / Alphabet shares slide as Apple seeks AI alternatives to Google search / After Earnings, Is Alphabet Stock a Buy, a Sell, or Fairly Valued? / Google Parent Alphabet Reports 12% Increase in Revenue