A weak year alone is not a reason to sell a mutual fund. But persistent benchmark underperformance, style drift and rising risk levels may signal deeper problems. Here are five indicators investors can use to determine whether a fund still deserves a place in their portfolio. A weak year alone is not a reason to sell a mutual fund. But persistent benchmark underperformance, style drift and rising risk levels may signal deeper problems. Here are five indicators investors can use to determine whether a fund still deserves a place in their portfolio. by Soban News (international And National News)