Vanguard’s Largest Fund Is Closing in on an All-Time High. Is There More Room to Run?

Vanguard is a massive investment management company, offering mutual funds, exchange-traded funds (ETF), 401(k) plans, and many other financial products and tools. The company's founder, Jack Bogle, popularized low-cost passive investing through index funds. Warren Buffett is a big fan of Bogle, famously saying, "If a statue is ever erected to honor the person who has done the most for American investors, the hands down choice should be Jack Bogle."