"Our research also shows that 41 percent of investors with multiple retirement accounts believe that maintaining separate accounts makes for a more diversified portfolio. While Americans are more savvy about investing, many have lost sight of what 'diversification' really means -; spreading out money over different types of investments such as stocks, bonds and cash to manage risk -; which can't be assured simply by having multiple accounts."
In reviewing the portfolios of nearly half a million investors over the past year, Fidelity found that many need to be reminded of three basic tenets for managing a diversified portfolio: Know what you own; know how much you're paying; and know when it's time to seek guidance.
Many investors who maintain multiple accounts don't realize the makeup of their overall investments and may be heavily overweighted or underweighted in a specific type of investment sector or security.