Tim Cook’s final words of warning as Apple CEO: US now at risk from ‘hundred-year flood’ — even Elon Musk is worried

The Tim Cook era at Apple is officially over — at least in the CEO's office. After 15 years at the helm of one of the world's most valuable companies, Cook stepped down as chief executive on Sept. 1,

Tim Cook, Elon Musk, Andy Jassy, and Jensen Huang All Just Warned Investors About the Same Thing. Spoiler Alert: It's Fantastic News for Micron and Sandisk.

The story is straightforward: The companies writing the biggest checks just told investors that memory prices are still going up, supply remains tight, and they are going to keep spending anyway. For investors who own shares of Micron Technology ( MU +2.42%) or Sandisk ( SNDK +1.08%), this should be music to your ears.

15 Years Ago, Steve Jobs Bet on Tim Cook’s Competence. It Paid Off to the Tune of $4 Trillion

Tim Cook's era at Apple is coming to a close. Here's how his impact will be remembered—and what John Ternus needs to tackle first.