GVA's Garrity on AAPL: iPhone Still Drives Profitability(Audio)

(Bloomberg) -- Taking Stock with Kathleen Hays and Pimm Fox. GUEST: David Garrity, Principal at GVA Research, GVA Research on Apple: Berkshire's $1 Billion investment in the company and Apple's investment in China's ride-sharing giant Didi.See omnystudio.com/listener for privacy information.