One of Warren Buffett’s favorite ETFs attracts $100B for first time

Berkshire Hathaway CEO Warren Buffett, as usual, was onto something when the company picked up Vanguard’s S&P 500 ETF (VOO), a few years ago. 

Since then, the exchange-traded fund has gradually become a darling of retail investors, crossing $100 billion in net cash flow for the first time th