Observations

May 2026: 6.56

Updated: Jun 5, 2026 1:50 PM CDT

Units:

Percent,

Not Seasonally Adjusted

Frequency:

Monthly

Notes

Title	Release Dates

99-Year High Quality Market (HQM) Corporate Bond Spot Rate	2016-12-05	2026-06-05

Source

U.S. Department of the Treasury	2016-12-05	2026-06-05

Release

Corporate Bond Yield Curve	2016-12-05	2026-06-05

Units

Percent	2016-12-05	2026-06-05

Frequency

Monthly	2016-12-05	2026-06-05

Seasonal Adjustment

Not Seasonally Adjusted	2016-12-05	2026-06-05

Notes

The spot rate for any maturity is defined as the yield on a bond that gives a single payment at that maturity. This is called a zero coupon bond. Because high quality zero coupon bonds are not generally available, the HQM methodology computes the spot rates so as to make them consistent with the yields on other high quality bonds. The HQM yield curve uses data from a set of high quality corporate bonds rated AAA, AA, or A that accurately represent the high quality corporate bond market. The HQM methodology projects yields beyond 30 years maturity out to 100 years maturity to get discount rates for long-dated pension liabilities. For more information see https://www.treasury.gov/resource-center/economic-policy/corp-bond-yield/Pages/Corp-Yield-Bond-Curve-Papers.aspx	2016-12-05	2026-06-05

Release Tables

Corporate Bond Yield Curve