Release: Interest Rate Spreads
On September 26, 2016 the Board of Governors announced changes to several data series from the H.15 releases (http://www.federalreserve.gov/feeds/h15.html). Because of these changes the series has been discontinued.
Series is calculated as the spread between Moody's Seasoned Aaa Corporate Bond (https://fred.stlouisfed.org/series/DAAA) and 10-Year Treasury Constant Maturity (https://fred.stlouisfed.org/series/DGS10).
Federal Reserve Bank of St. Louis, Moody's Seasoned Aaa Corporate Bond Yield Relative to Yield on 10-Year Treasury Constant Maturity (DISCONTINUED) [AAA10Y], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/AAA10Y, December 3, 2016.