The Fed publishes Moody's seasoned corporate bond yields here.
These yields are not broken out by maturity.
According to this website, the yields represent "long-term" bonds, with minimum and average maturities of 20 and 28 years, respectively. First of all, can anyone validate this?
Second - are there short/medium term 'Moody's seasoned corporate bond yields' published for free anywhere.
If not - where can I find a free data source for short term, medium and long term corporate bond yields?
I want to compare corporate bond yields against the treasury yield curve to assess credit spreads. Unfortunately, if the above is true, I only have data for the long end.