Nvidia stock rides the 'iPhone moment of AI' to add $87 billion in market cap through the banking crisis

• Nvidia has breezed through the banking turmoil, and is the S&P 500's best performer with a 81% rise year-to-date.
• The chipmaker has added $87 billion in market value since Silicon Valley Bank was taken over by regulators.
• "We are at the iPhone moment of AI," CEO Jensen Huang said this week amid the ChatGPT buzz.

For two weeks now, anxiety has run high across global markets as a string of bank implosions — from Silicon Valley Bank in the US and to Credit Suisse in Europe — whipsawed assets from stocks to bonds and commodities.