In 2007 over $1 trillion of mortgage debt in Adjustable Rate Mortgages will switch from their initial fixed rate to the current rate Posted on June 16, 2005 In 2007 over $1 trillion of mortgage debt in Adjustable Rate Mortgages will switch from their initial fixed rate to the current rate In other words: this might be the margin-call trigger before the bubble burst – all right before the 2008 election