Auction Rate Bond - ARB

DEFINITION of 'Auction Rate Bond - ARB'

A debt security with an adjustable interest rate and fixed term of 20-30 years. An auction rate bond's (ARB) interest rate is determined through a modified Dutch auction (where the price starts high and gets lower and lower until buyers are found) on a set schedule every seven, 14, 28 or 35 days. Non-profit institutions and municipalities utilize ARBs as a means to reduce borrowing costs for long-term financing.

BREAKING DOWN 'Auction Rate Bond - ARB'

The rates on ARBs are set in a similar way to how rates on new U.S. Treasury bills are set when they are issued. However, when an auction fails due to a lack of buyers, both bondholders and bond issuers are negatively impacted. The bondholders can't sell what is supposed to be a liquid investment and issuers are forced to pay higher default rates (set when the bonds were initially sold).

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