Notes vs High Yield Corporate Bond Investment

[Jeff Severson]

I own a bond mutual fund that holds high yield corporate bonds.  All bonds in the fund mature in 2020 and the fund will liquidate at the end of 2020.  The SEC yield has gone from 3.5 percent to 8 percent.   I am considering additional investment in the mutual fund with the premise that during 2020 the 70 companies in this fund should be able to pay off or refinance their bonds.  Also wondering if note yields have or will increase similar to non-investment grade bonds.  Thoughts?