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Up for the quarter, down for the year? See what's happening with home affordability in our latest "Income you need to buy a home in the top 50 metro areas".

Up for the quarter, down for the year? See what's happening with home affordability in our latest "Income you need to buy a home in the top 50 metro areas".

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 June 2022 to June 2023

Date 3-Month TCM 6-Month TCM 1-Year TCM
Jun-02-2023 5.52000 5.48000 5.18000
May-26-2023 5.37000 5.43000 5.15000
May-19-2023 5.26000 5.31000 4.91000
May-12-2023 5.26000 5.15000 4.75000
May-05-2023 5.26000 5.09000 4.72000
Apr-28-2023 5.15000 5.03000 4.72000
Apr-21-2023 5.17000 5.08000 4.80000
Apr-14-2023 5.08000 4.99000 4.68000
Apr-07-2023 4.90000 4.88000 4.53000
Mar-31-2023 4.87000 4.91000 4.58000
Mar-24-2023 4.77000 4.85000 4.46000
Mar-17-2023 4.75000 4.82000 4.34000
Mar-10-2023 5.02000 5.27000 5.12000
Mar-03-2023 4.90000 5.18000 5.04000
Feb-24-2023 4.85000 5.07000 5.06000
Feb-17-2023 4.82000 4.98000 4.97000
Feb-10-2023 4.74000 4.89000 4.87000
Feb-03-2023 4.69000 4.80000 4.70000
Jan-27-2023 4.72000 4.81000 4.69000
Jan-20-2023 4.71000 4.80000 4.66000
Jan-13-2023 4.70000 4.81000 4.70000
Jan-06-2023 4.60000 4.79000 4.73000
Dec-30-2022 4.45000 4.75000 4.73000
Dec-23-2022 4.35000 4.68000 4.64000
Dec-16-2022 4.34000 4.71000 4.66000
Dec-09-2022 4.32000 4.72000 4.72000
Dec-02-2022 4.37000 4.69000 4.73000
Nov-25-2022 4.41000 4.67000 4.76000
Nov-18-2022 4.33000 4.56000 4.65000
Nov-11-2022 4.29000 4.58000 4.73000
Nov-04-2022 4.23000 4.57000 4.74000
Oct-28-2022 4.14000 4.49000 4.56000
Oct-21-2022 4.05000 4.43000 4.57000
Oct-14-2022 3.74000 4.24000 4.38000
Oct-07-2022 3.46000 4.02000 4.15000
Sep-30-2022 3.37000 3.90000 4.07000
Sep-23-2022 3.31000 3.86000 4.08000
Sep-16-2022 3.22000 3.72000 3.91000
Sep-09-2022 3.06000 3.45000 3.62000
Sep-02-2022 2.96000 3.32000 3.48000
Aug-26-2022 2.84000 3.25000 3.33000
Aug-19-2022 2.71000 3.14000 3.25000
Aug-12-2022 2.64000 3.13000 3.28000
Aug-05-2022 2.54000 3.01000 3.12000
Jul-29-2022 2.49000 2.96000 3.01000
Jul-22-2022 2.50000 3.02000 3.12000
Jul-15-2022 2.31000 2.88000 3.11000
Jul-08-2022 1.93000 2.63000 2.86000
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

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

More ARM Indexes & Info

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