What is the value of a 1986 US half dollar?
Assuming you have a Kennedy half dollar with that date, any coin
you find in change will be worth only 50 cents. All circulation
half dollars dated 1971 and later are made of copper-nickel, not
silver, and have no precious metal value.
If you have an uncirculated or proof 1986 JFK half, its retail value as of 12/2009 is about $3.50
If you have a commemorative 1986 half dollar issued to honor the centennial of the Statue of Liberty, please see the Related Question.