Peter Lynch
Peter Lynch.
  • Peter Lynch regrets not investing in Apple when even tech-skeptic Warren Buffett saw its potential.
  • The famed stock picker noted the iPod's large profit margins and Apple's strong finances years ago.
  • Buffett's company counts its $150 billion Apple stake as the top holding in its stock portfolio.

Peter Lynch kicked himself for not investing in Apple years ago when even Warren Buffett, a longtime skeptic of technology companies, spotted the iPhone maker's potential and bought its stock.

"How dumb was I?" the legendary stock picker said during a CNBC interview on Tuesday.