MUTUAL FUNDS• Actively managed exchange-traded funds have attracted big-name mutual fund players in recent months, with Legg Mason and T. Rowe Price Group the latest to add their names to the roster. But active ETFs have failed thus far to garner substantial investor assets or trading volume — and many registered investment advisers remain wary of using them. “As a general statement, I don’t think it’s a bad thing to have active management in anything,” says James Holtzman, an adviser at Pittsburgh-based Legend Financial Advisors. Still, he doesn’t use actively managed ETFs in client portfolios because he hasn’t been able to find “a good fit” for his clients among the limited number of actively trading ETFs. “Especially for an advisory firm, if you’re moving a lot of money, you have to be very careful how much volume is trading; if you’re buying for a lot of...