During QE, the Fed acquired Treasury securities and mortgage-backed securities (MBS) guaranteed by Fannie Mae, Freddie Mac, and Ginnie Mae. During the QE-Unwind, the Fed is shedding those securities. According to its plan, announced last September, the Fed would reduce its holdings of Treasuries and MBS by no more than:
$10 billion a month in Q3 2017. $20 billion a month in Q1 2018 $30 billion a month in Q2 2018 $40 billion a month in Q3 2018 $50 billion a month in Q4 2018 and continue at this pace.
This would shrink the balance of Treasuries and MBS by up to $420 billion in 2018, by up to an additional $600 billion in 2019 and every year going forward until the Fed decides that the balance sheet has been "normalized" enough — or until something big breaks.
For February, the plan called for shedding up to $20 billion in securities: $12 billion in Treasuries and $8 billion in MBS.
"Pg. 116 – From 2000 to 2007, Washington Mutual and Long Beach securitized at least $77 billion in subprime and home equity loans. WaMu also sold or securitized at least $115 billion in Option ARM loans. Between 2000 and 2008, Washington Mutual sold over $500 billion in loans to Fannie Mae and Freddie Mac, accounting for more than a quarter of every dollar in loans WaMu originated."
$500 billion in loans sold to Fannie Mae and Freddie Mac is more than 1/4th of loans WaMu originated.
What happened to the Other 3/4th of loans WaMu originated?