Yield to Maturity

Yield to Maturity is the amount of interest you will earn if you keep a debt instrument the full term.

John bought a 10 year $10,000 bond that pays 5% interest. If he keeps the bond the full 10 years, his yield to maturity will be 5%. If John sells the bond before the 10 years are up, he will make a profit or loss on the sale of the bond which will affect his yield.

https://accounting.uworld.com/cpa-review/lc/accounting-dictionary/term/yield-to-maturity/