You’ll Never Guess This Year’s Top-Performing ETF

Guess this year’s top-performing non-leveraged exchange traded fund. Think it is a niche play like the Guggenheim Solar ETF (NYSEArca: TAN) or maybe a high-flying currency hedged fund? Perhaps a biotechnology ETF? All of those are good guesses, but they are all wrong. To this point in 2015, the...