

If you look beyond just the S&P 500, there are intriguing opportunities in small caps, value, and international stocks.

These exchange-traded funds (ETFs) have low fees and offer strong diversification, making them enticing options to just buy and hold.

The Vanguard Growth ETF solely focuses on America's largest growth companies.

Making its debut on 05/08/2007, smart beta exchange traded fund First Trust Large Cap Growth AlphaDEX ETF (FTC) provides investors broad exposure to the Style Box - Large Cap Growth category of the market.

Billionaire investor Bill Ackman has built a reputation as one of Wall Street's most successful stock pickers, generating exceptional long-term returns through a high-conviction, concentrated portfolio.

Vanguard's cheapest growth ETF carries a nearly perfect long-term track record and a three-cent price tag, but crack open the holdings and a very different story starts to take shape.

Pick between the Schwab U.S. Large-Cap Growth ETF (NYSEARCA:SCHG) and the Vanguard Growth ETF (NYSEARCA:VUG), and you are choosing between twins raised in different houses.

Dollar-cost averaging into these four Vanguard ETFs could help you build long-term wealth.