John Hancock Preferred Income Fund is a closed ended fixed income mutual fund launched by John Hancock Funds, LLC. It is co-managed by John Hancock Advisers, LLC and John Hancock Asset Management. The fund adopts a value-oriented approach to invest in preferred securities, including convertible preferred securities of companies operating in diversified industries. It makes its investment in preferred stocks or other fixed income securities which are rated investment grade or higher by Moody's or Standard and Poor's at the time of investment. The fund benchmarks the performance of its portfolio against the Merrill Lynch Preferred Stock Hybrid Securities Index, the Lehman Brothers Aggregate Index, the Lehman Brothers Government Bond Index, 10-Year Treasury Bond, and the NAREIT Equity REIT Index. John Hancock Preferred Income Fund was formed on August 27, 2002 and is domiciled in the United States.