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With the Income You Need to Buy a Median-Priced Home rising, you may need to Learn About Adjustable Rate Mortgages to preserve affordability.

With the Income You Need to Buy a Median-Priced Home rising, you may need to Learn About Adjustable Rate Mortgages to preserve affordability.

ARM Indexes: Weekly Treasury Securities / Constant Maturities

Treasury Securities ("T-Secs", also known as TCM, or CMT, or T-Sec) values are calculated by the Treasury Department and reported by the Federal Reserve in Publication H.15.  Below, you will find current and historical weekly yields for 3 month, 6 month Treasuries, as well as values for 1-, 2-, 3-, 5-, 7-, 10-, 20-, and 30 year treasuries.

The official name of this index is "Yield on U.S. Treasury Security Adjusted to a Constant Maturity of One Year" (or 6 months, or 2 years, etc.). Confusion can arise when lenders use the term "One Year Treasury Bill"; the 52-week bill is a completely different index, and rarely used on ARMs. To be certain, check your mortgage contract for the specific language.

Treasuries have both monthly and weekly values; for ARMs, the weekly value is most often used. Since it's often paired with ARMs that have annual rate adjustments, the most common version used is the One Year Treasury Security. Most frequently, your new interest rate will be determined by the index value 30 to 45 days before your next scheduled rate change; check your mortgage Note or Adjustable Rate Rider for details. A margin is added to this index by the lender when your ARM's rate is adjusted.

You can compute your new mortgage rate as soon as the relevant index value is released; see our ARM Check Kit for complete instructions and worksheets. Need monthly treasury index values instead?

L O A D I N G

ARM Indexes: Weekly Treasury Securities / Constant Maturities from July 2021 to July 2022

Date 3-Month TCM 6-Month TCM 1-Year TCM
Jul-01-2022 1.76000 2.54000 2.85000
Jun-24-2022 1.67000 2.45000 2.83000
Jun-17-2022 1.70000 2.30000 2.94000
Jun-10-2022 1.30000 1.81000 2.34000
Jun-03-2022 1.17000 1.65000 2.14000
May-27-2022 1.07000 1.54000 2.02000
May-20-2022 1.05000 1.54000 2.11000
May-13-2022 0.94000 1.44000 2.00000
May-06-2022 0.88000 1.43000 2.10000
Apr-29-2022 0.85000 1.40000 2.03000
Apr-22-2022 0.82000 1.30000 1.96000
Apr-15-2022 0.76000 1.22000 1.81000
Apr-08-2022 0.67000 1.15000 1.77000
Apr-01-2022 0.55000 1.07000 1.67000
Mar-25-2022 0.52000 0.96000 1.55000
Mar-18-2022 0.43000 0.84000 1.30000
Mar-11-2022 0.38000 0.75000 1.15000
Mar-04-2022 0.35000 0.67000 1.02000
Feb-25-2022 0.34000 0.71000 1.14000
Feb-18-2022 0.38000 0.69000 1.08000
Feb-11-2022 0.31000 0.64000 0.98000
Feb-04-2022 0.21000 0.49000 0.80000
Jan-28-2022 0.19000 0.41000 0.69000
Jan-21-2022 0.17000 0.36000 0.58000
Jan-14-2022 0.12000 0.28000 0.48000
Jan-07-2022 0.09000 0.23000 0.41000
Dec-31-2021 0.06000 0.20000 0.37000
Dec-24-2021 0.07000 0.17000 0.29000
Dec-17-2021 0.05000 0.13000 0.27000
Dec-10-2021 0.06000 0.13000 0.29000
Dec-03-2021 0.06000 0.10000 0.25000
Nov-26-2021 0.06000 0.09000 0.21000
Nov-19-2021 0.05000 0.06000 0.18000
Nov-12-2021 0.05000 0.07000 0.16000
Nov-05-2021 0.05000 0.07000 0.15000
Oct-29-2021 0.06000 0.06000 0.14000
Oct-22-2021 0.06000 0.06000 0.11000
Oct-15-2021 0.05000 0.06000 0.11000
Oct-08-2021 0.04000 0.05000 0.09000
Oct-01-2021 0.04000 0.05000 0.09000
Sep-24-2021 0.03000 0.05000 0.08000
Sep-17-2021 0.04000 0.05000 0.07000
Sep-10-2021 0.05000 0.06000 0.08000
Sep-03-2021 0.05000 0.06000 0.07000
Aug-27-2021 0.05000 0.06000 0.07000
Aug-20-2021 0.06000 0.05000 0.07000
Aug-13-2021 0.06000 0.06000 0.08000
Aug-06-2021 0.05000 0.06000 0.08000
Jul-30-2021 0.05000 0.05000 0.07000
Jul-23-2021 0.05000 0.05000 0.07000
Jul-16-2021 0.05000 0.05000 0.08000
Jul-09-2021 0.06000 0.06000 0.08000
Jul-02-2021 0.05000 0.06000 0.08000

3-Month TCM
6-Month TCM
1-Year TCM

More ARM Indexes & Info

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