But this is not the end of the jostling in the ever-evolving $10.7 trillion ETF space. Anyone paying even cursory attention to the asset flow data beneath the ETF industry can app

The oldest exchange-traded fund listed in the U.S. has just been surpassed in assets under management by a Vanguard ETF that more cheaply tracks the S&P 500 index.

The Vanguard S&P 500 ETF has an exceptionally low expense ratio. Having your money in an S&P 500 ETF instantly diversifies your portfolio. Slow and steady is a great way to earn money over time. Here are a few reasons why putting $100 into the Vanguard S&P 500 ETF right now and holding it for the long term is a wise decision.