One fund in particular that may be among the best investments for growth investors to consider today is the Vanguard Growth Index Fund ETF ( VUG -0.20%). Below, I'll show you why this can be a great option if you want to turn a $50,000 investment into at least $1 million.

Exchange-traded funds (ETFs) are an excellent way to grow your wealth. In other words, there are plenty of fantastic Vanguard ETFs to choose from. In addition, its expense ratio of 0.04% is one of the lowest around.

VGSH ETF's share price in the upper 50s is slightly low, impacting the bid-ask spread and making it less efficient for frequent trading. Click for more on VGSH.

Thinking about your long-term investment strategy? Here's why the Vanguard S&P 500 ETF should be at the top of your list.