A callable bond is a debt security that can be redeemed or called back by the issuer before its stated maturity date at a predetermined price and call date. The predetermined price that the issuer has to pay to call a callable bond is known as the call price. These bonds come with an initial lock‐in period (also known as call protection) during which the issuer cannot call back the bonds. The issuer exercises this buy back option usually when interest rates fall, allowing them to refinance debt at a lower cost.
Call provisions allow the bond issuer to retire the high yield bonds and sell low rate bonds in a bid to lower debt cost. As these bonds give issuers the flexibility to repurchase it, investors face the reinvestment risk as they have to reinvest the principal at the lower yields.







