Freddie Mac officials said market conditions provided the opportunity for the government-sponsored enterprise to issue its second package of strip securities in 2004. The company announced last week that it had priced $2.5 billion of Freddie Mac strip certificates, the second such deal recorded this year. In January, the GSE completed a $2.0 billion strip deal, but a Freddie official said the firm does not have a set schedule for issuing these instruments.