Investors are warming up to exchange-traded funds, so much so that many fundholders say they’re on the way to portfolios 100% loaded with ETFs. That’s the takeaway from a new Schwab Asset Management study that concludes 62% of ETF investors “envision putting their entire investment portfolios into ETFs, with 50% saying they could be fully invested in ETFs in the next five years.” That could be a leading-edge issue on the consumer investment front, as 66% of ETF investors included in Schwab Asset Manageme ...