Investors need to tread carefully when considering mid-cap blend ETFs and mutual funds, as no ETFs or mutual funds in the mid-cap blend style allocate enough value to attractive-or-better-rated stocks to earn an attractive rating.

FORBES: Don't Fall Into Midcap Traps

Investors need to tread carefully when considering large-cap blend ETFs and mutual funds, as only one ETF and 68 mutual funds in the large-cap blend style allocate enough value to attractive-or-better-rated stocks to earn an attractive rating.

FORBES: Large-Cap Blend Funds Need More Microsoft, Less BofA

Starboard Investment Trust: Roumell Opportunistic Value Fund (RAMVX) is my worst-rated all-cap blend mutual fund and earns my very dangerous rating.

FORBES: Turn Off The TiVo And Get Some Bed, Bath In Your All-Cap Blend Funds