ETFs have surged in popularity in recent years in part because of the numerous advantages they offer over traditional actively-managed mutual funds: lower costs, potential tax efficiencies, intraday trading, and enhanced transparency. But ETFs aren’t without potential drawbacks of their own. Although most funds appear relatively simple on the surface, there are some rather complex [...] Related Stories: Five Ways To Slash Your ETF Expenses Why The Cheapest ETFs Aren’t Always The Best Low Cost ETFs: Complete List Of The Cheapest Exchange-Traded Funds