Guaranteed Mortgage Certificates
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Guaranteed Mortgage Certificates (GMC)
Guaranteed Mortgage Certificate
A mortgage-backed security issued by Freddie Mac. As with all mortgage-backed securities, the coupons on guaranteed mortgage certificates are paid out of the principal and interest on a pool of mortgages underlying the securities. However, GMCs have a guaranteed average life, meaning that Freddie Mac protects the investor from prepayment risk by guaranteeing principal and interest payments in the event that too many mortgage holders pay back their loans early, depriving the pool of interest it otherwise would have received. See also: collateralized mortgage obligation.