The Ohio Police & Fire Pension Fund was the latest fund to approve investments in master limited partnerships, adding a 5% allocation to the asset class. In recent years, MLPs have exhibited diversification benefits, while providing steady income streams to investors. Between December 2009 and December 2012, the weekly correlation between the Alerian MLP index and the Russell 3000 index was 0.46. The MLP index posted a total return (not annualized) of 69.1% during that time - 40.5% from price appreciation and 28.6% from income yield.