Vanguard’s expired patent may emerge as game changer for fund industry
An expired patent — previously held by Vanguard — may spark a shake-up in the exchange-traded fund industry. Wall Street saw the patent as critical to Vanguard’s success because it saved an enormous amount of money in taxes. Now, the firm’s ETF competitors could get a chance to use it, too. “It’s really a game changer,” BNY…