Session 14: Fixed Income: Valuation Concepts Reading 56: Valuing Bonds with Embedded Options 
 LOS g: Interpret an option-adjusted spread with respect to a nominal spread and to benchmark interest rates. 
  
  
Which part of the nominal spread does the option-adjusted spread (OAS) capture? 
 
 
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 A)  | 
interest rate and volatility risk. |    |  
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 B)  | 
credit and liquidity risk. |    |  
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The OAS removes the amount that is due to option risk from the nominal spread leaving just the credit and liquidity risk.   |