Ten S&P 500 stocks — including Garmin (GRMN), Expeditors International of Washington (EXPD) and Franklin Resources (BEN) — carry the highest percentages of sell ratings, says FactSet. On average, 39% of analysts rate these stocks a sell. And that's noteworthy now. Only 5% of the ratings on S&P 500 stocks are sells, says FactSet. And that's slightly below the five-year average of 5.4%. "The utilities sector ... has the highest percentages of sell ratings," says John Butters of FactSet. Look Out Below Followi ...