Apple cracks Fortune 500 list's top 5

(CNN) – Apple fan boys were already plotting which non-essential organs to sell so they could buy whatever new gizmo out of the company's big development conference Monday.

Instead, Apple announced a new operating system, and there was a virtual cameo from Dr. Dre.

Ever since Tim Cook took over the tech giant, Apple has had fewer and fewer of the splashy innovations and mock turtlenecks watched came to expect from Steve Jobs.

And still, the company is more profitable than ever.

This year, for the first time, Apple cracked the top five of the Fortune 500 list of the world's most valuable companies, joining the likes of WalMart, and energy power-house Exxon Mobil.

Assistant managing editor for Fortune Magazine Leigh Gallagher joins CNN's "The Lead with Jake Tapper" to discuss.