The Trump administration is preparing to sell stock in mortgage giants Fannie Mae and Freddie Mac in an offering it believes could raise around $30 billion and kick off later this year, according to people familiar with the matter.

Fannie Mae (FNMA) and Freddie Mac (FMCC) stocks jumped in Friday late morning trading after a media report that the Trump administration is planning to sell stock in the two mortgage titans, a long-awaited step that could start later this year.

The Trump administration is reportedly looking to sell stock in Freddie Mac and Fannie Mae, which could be valued at roughly $500 billion.