Municipals-Over-Bonds Spread (MOB) The difference in yields between a municipal bond and a Treasury bond with the same time to maturity. The MOB is sometimes used for determining tax strategies. Investopedia Says: Most MOB spread calculations actually use the yield implicit in futures prices for munis and Treasuries listed on the Chicago Board of Trade. The MOB spread is essentially a comparison of the interest rate spread between federal government debt (Treasuries) and state/municipal debt (municipal bonds). Related Terms: Chicago Board of Trade - CBOE Futures Contract Municipal Bond Placement Ratio Sub-Sovereign Obligation - SSO Treasury Bond |