At last count from Invesco PowerShares, there were about 350 smart-beta ETFs available to U.S. investors, and the total value of those assets is more than $230 billion. That figure is up from a mere 212 smart-beta funds in 2010 that had less than $65 billion in assets.

Smart-beta ETFs now have become popular among the general investing public, and not just with savvy investors and “early adopters” like yours truly who saw their value years ago.