A recent article summarizes the findings of Cogent Research's 2011 study on investment advisers' preferences and trends.  The article includes a ranking of the fund groups that were found to have the highest level of adviser loyalty and discusses how these rankings have changed since 2010.  The rankings were based on both current adviser loyalty and how advisers anticipate investing in the future.  The study also found that over the past year there has been an increase in the use of mutual funds by advisers, although this use may decline as advisers expect to invest more in ETFs and separately managed accounts over the next two years.