OAS spread

what is the z spread, OAS spread? Thanks.

z-spread (static spread) adds the same amount to the treasury spot rate curve so that the PV of the cash flows = the market price. OAS removes the option.

OAS spread = Z spread - option cost remember when you remove the option that the OAS spread gives you a better comparison on two bonds liquidity risks

and credit risk if compared to treasuries.

indeed

so, OAS spread account for credit risk and liquidity risk? Thanks. as I searched, OAS account for option. Niblita75 Wrote: ------------------------------------------------------- > and credit risk if compared to treasuries.

yes if the benchmark is treasuries or industry…BUT if benchmark is the issuing company (since credit is the same) the OAS spread is only for liquidity

Only accounts for credit risk above a benchmark if the benchmark is a higher credit rating.

so, which spread account for embedded option , llike callable bond or putable bond? Thanks. mwvt9 Wrote: ------------------------------------------------------- > Only accounts for credit risk above a benchmark if > the benchmark is a higher credit rating.

OAS