However, the prices would be public and therefore, *every other holder of this exotic paper* would have to assign a value to what they were holding. And then bump up their reserves to cover it.
An extremely astute observation.
You’re right.
Following that, the financial markets would have melted down. The credit markets would have frozen solid - for weeks.
The mark-to-market has to happen. The speed with which it has been happening already has caused severe credit market disruptions.
Forcing it yet faster would have finished vapor-locking the credit markets.
And then you would have seen the Fed do some even more extraordinary things.