MBS & US Treasury Markets
1/9 8:26:48AM EST : Delayed Data

The newswire in question:

TRUMP: INSTRUCTING MY REPRESENTATIVES TO BUY $200 BLN DOLLARS IN MORTGAGE BONDS

The reaction:

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We don't know exactly how this will play out yet, but MBS traders are clearly willing to react this afternoon.  Based on the fact that there's almost exactly $200bln of balance sheet room for the GSEs, this doesn't seem like a random, spur of the moment comment.