It invests in preferred stocks and other preferred securities, including convertible preferred securities, as well as in the other fixed income securities.
The fund’s portfolio of primarily comprises investments in agricultural, automobiles/trucks, banks, broker services, chemicals, finance, insurance, leisure, media, oil and gas, real estate investment trust, telecommunications, and utilities sectors.
John Hancock Advisers LLC serves as the investment adviser of the fund.
John Hancock Preferred Income is based in Boston, Massachusetts.

