According to FNMA Announcement 09-16, effective September 1, 2009, Fannie Mae will discontinue offering commitments to purchase Constant Maturity Treasury (CMT) indexed Home Equity Conversion Mortgages (HECMs). Fannie Mae will continue to offer commitments to purchase monthly adjustable-rate London Interbank Offered Rate (LIBOR) indexed HECMs and fixed-rate HECMs. Fannie Mae's decision to discontinue offering commitments to purchase CMT-indexed HECMs is intended to help standardize and simplify HECM product offerings, build liquidity for the product, and encourage a market shift toward securitization.