The value of a paper savings bond can be checked by using the savings bond calculator on the TreasuryDirect website and entering this information found on bond: The U.S. Treasury stopped issuing ...

"The par value remains constant throughout the life of the bond and is used to calculate the bond's coupon payments and final repayment to the bondholder at maturity." For example, a $1,000 par ...

For example, when interest rates rise, bond prices decline, and vice versa. Investors can calculate the modified duration for the bonds they own to decide whether it's better to hold or sell ...

That's where it becomes the financial advisor's job to help clients understand the value of bonds in a portfolio and factors such as bond duration. In a March 10 blog post, Vanguard's John Croke ...