From Jun. 22 FOMC statement release: The Committee will complete its purchases of $600 billion of longer-term Treasury securities by the end of this month and will maintain its existing policy of reinvesting principal payments from its securities holdings. The Committee will regularly review the size and composition of its securities holdings and is prepared to adjust those holdings as appropriate.
so QE2.5 should be from June 22, not June 27.
I remember that QE1 also reinvestment it's principal.
So what's the difference of QE1.5 and QE2.5?