who or what body sets the MTA Index? I am not asking how it is set. Thanks, Ofer

Providing I've found the correct item, it seems that anyone can
calculate the index.

"12-MTA index is based on yields published in the release entitled the
?Selected Interest Rates-H15? which is published by the Federal
Reserve Board on the first Tuesday of each month. Home Loans Group
Finance performs a simple calculation of the preceding 12-month annual
yield to come up with the current yield number shown on the Bank?s
Pricing Guides."
http://www.mrates.com/MTA_guidelines.html

"12-MTA index is based on yields published in the release entitled the
"Selected Interest Rates-H-15". which is published by the Federal
Reserve Board on the first Tuesday of each month. Investor Capital
Markets performs a simple calculation of averaging the preceding
12-month annual yield to come up with the current index value."
http://www.lendere-source.com/customers/h8897rzz2lm/WL/WL12.htm

"The 12-MTA Index is based on yields published in the release entitled
the "Selected Interest Rates G-13" which is published by the Federal
Reserve Board on the first Tuesday of each month. Mortgage Banking
Finance performs a simple calculation of the preceding 12-month annual
yield to come up with the current yield number shown on the Bank?s
Pricing Guides."
http://www.aami.net/MTA/fixedpay_60__120_mta_options.htm

"12-MTA index is based on yields published in the release entitled the
"Selected Interest Rates-H-15" which is published by the Federal
Reserve Board on the first Tuesday of each month. The investor
performs a simple calculation of averaging the preceding 12-month
annual yield to come up with the current index value that is published
on the pricing guide."
http://www.comunitylending.com/loanlib/WAMU/WAMU_Option_ARMs.htm

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