The main risk that would pop a bubble — if there indeed is one — is Fed rate hikes, Michael Hartnett said.

Nvidia set another record for quarterly revenue with $57 billion in sales. The company's gross margin was 73.4% and is expected to improve in the fourth quarter. The stock jumped 4% in after-hours ...

An international team of scientists has successfully shown that swarms of rising bubbles create turbulence that behaves exactly as predicted by a well-known theory developed nearly a century ago. For ...

Want more stock market and economic analysis from Phil Rosen directly in your inbox? Subscribe to Opening Bell Daily’s newsletter. The AI industry is barreling ahead with two conflicting narratives: ...