Margin Calls Threaten Two Mortgage Companies/Investorshttp://www.mortgagenewsdaily.com/372008_Mortgage_Margin_Calls.aspThe Carlyle Fund announced this week that it had failed to meet margins calls on its $21.7 billion portfolio. The second company, Thornburg Mortgage , Inc also announced this week that it was facing default as it failed to meet "a substantial number"enCommunityServer 2008 SP2 (Build: 31106.96)