The title of the Day Ahead commentary on Monday was "Don't Get Too Attached."  In a nutshell, the suggestion was to not get too attached to any decisive move in markets because wouldn't really be as decisive (due to lighter volume and liquidity).  Today's overnight and early morning trading provide a good example of this theme in action.  Whereas stocks panicked and bonds followed on Monday, the move runs the risk of happening in the opposite direction today.

2018-12-26 open

It doesn't really matter if these early trends continue through the rest of the day for the same reason the Christmas Eve move didn't matter.  The chart above falsely suggests it was just the pre-Christmas trading environment that was serendipitous while today is somehow more "real."  No...  Today is actually part of the same overall holiday-week theme.  It too could be seen as a mere temporary diversion by the time January's momentum ramps up.  If you prefer, you could think of it as a small-scale example of the holiday theme.

All we can do at this time of year is watch and wait.  To whatever extent major technical levels are broken, we could hold out some hope that rate floors remain broken or that rate ceilings are only temporarily broken.  We can consider the bigger picture implications of the moves we see, but we can't consider them very effectively until the 2nd week of January.

MBS Pricing Snapshot
Pricing shown below is delayed, please note the timestamp at the bottom. Real time pricing is available via MBS Live.
FNMA 4.0
101-19 : +0-00
10 YR
2.7490 : -0.0040
Pricing as of 12/26/18 10:02AMEST

Tomorrow's Economic Calendar
Time Event Period Forecast Prior
Wednesday, Dec 26
9:00 CaseShiller 20 mm nsa (%) Oct -0.1 0.0
9:00 CaseShiller 20 mm SA (%) Oct 0.2 0.3