Adjustable Rate Mortgage (ARM) Index

The final December value of the National Average Contract Mortgage Rate for the Purchase of Previously Occupied Homes by Combined Lenders is 3.29 percent. This is a decline of 0.07 percent from last month's rate. Many lenders use this rate in adjusting some adjustable-rate mortgages. This index was the only index rate that federally chartered savings and loan associations could use as an adjustable-rate mortgage index in the early 1980s.

Interested parties can receive up-to-date information on this index value by calling (202) 649-3993. The January index value will be announced on Feb. 26, 2013.

Announce Date Index Month Index Rate
January 29, 2013  December 2012  3.29 
December 27, 2012  November 2012  3.36 
November 29, 2012  October 2012  3.44 
October 30, 2012  September 2012  3.56 
September 27, 2012 August 2012  3.56 
August 28, 2012  July 2012  3.66 
July 26, 2012  June 2012  3.67 
June 26, 2012  May 2012  3.78 
May 29, 2012  April 2012  3.93 
April 26, 2012  March 2012  3.90 
March 27, 2012  February 2012  4.08 
February 28, 2012  January 2012  4.25* 
January 26, 2012  December 2011  4.15* 
December 22, 2011  November 2011  4.22* 
November 22, 2011  October 2011  4.19* 

*This number was based on a weighted sample.  The FHFA now calculates the contract rate using un-weighted survey data.
Click here to view a Complete History of this index dating from 1980.