Most of Nvidia's gargantuan $3 trillion market cap can be attributed to its dominance in AI chips. Estimates say the company commands somewhere between 70% to 95% market share for GPUs designed for the AI market.

WASHINGTON - Nvidia Chief Executive Jensen Huang announced this week that his company plans to invest a half-trillion dollars in U.S. infrastructure needed to manufacture semiconductors and to build the supercomputers that enable artificial intelligence.

KEY TAKEAWAYS Nvidia shares are surging in premarket trading as two of its key customers—Microsoft and Meta Platforms—posted strong results and committed to continuing their heavy artificial intelligence (AI) spending.