ETFs were originally embraced by buy-and-hold investors as an optimal, low-cost vehicle for inclusion in a long-term retirement portfolio. But in recent years they have become popular among more active traders who value their liquidity and efficiency in providing exposure to various asset classes. Once used primarily by beta grazers, ETFs have become a favorite [...] Original Post Related Stories: Sector ETF Analysis: Industrials Surge, Utilities Lag Who Else Wants Ex-Sector ETFs? Low Cost ETFs: Complete List Of The Cheapest Exchange-Traded Funds