https://www.reuters.com/article/us-apple-results/apple-soars-past-sales-profit-targets-with-strong-iphone-demand-warns-of-chip-shortages-idUSKBN2CF2PX >Apple Inc on Wednesday posted sales and profits far ahead of Wall Street expectations and announced a $90 billion share buyback as customers continued to upgrade to 5G iPhones but warned that supply constraints from a global chip shortage would cost it billions in revenue in the current quarter, hitting Macs and iPads.