Процентная ставка
Interest rate changes can affect the value of a bond. If the interest rates fall, then the bond prices rise and if the interest rates rise, bond prices fall. When interest rates rise, bonds are more attractive because investors can earn higher coupon rate, thereby holding period risk may occur. Interest rate and bond price have negative correlation. Lower fixed-rate bond coupon rates meaning higher interest rate risk and higher fixed-rate bond coupon rates meaning lower interest rate risk.