Session 16: Fixed Income: Analysis and Valuation Reading 66: Yield Measures, Spot Rates, and Forward Rates
LOS f: Differentiate between the nominal spread, the zero-volatility spread, and the option-adjusted spread.
Which of the following statements regarding the option adjusted spread (OAS) is least accurate? The option adjusted spread:
A) |
is the spread added to the Treasury spot rate curve that the bond would have if it were option-free. | |
B) |
is the spread that accounts for non-option characteristics like credit risk, liquidity risk, and interest rate risk. | |
C) |
for a putable bond is the Z-spread minus the cost of the option. | |
Since the buyer of a putable bond must pay extra for the put option, the OAS spread for a putable bond is the Z-spread plus the put option cost in percent. |