In case you missed yesterday, it was a doozy.  Here are a few links that would help you get caught up:

Long-story short, the Fed announced an end of the balance sheet runoff process by October 1, 2019, and a decrease of $15bln/month in the runoff amount starting in May 2019.  Any decrease in the runoff amount is equivalent to an increase in Fed bond-buying.  To be clear, that's an extra $15bln a month in May, another $15bln a  month in October, PLUS another $15bln or so from MBS proceeds (which weren't part of the plan over the next 6 months, but will be completely out of the runoff game on October 1st).

The only catch with MBS is that when the runoff ends, the MBS proceeds will be diverted to buy more Treasuries.  The Fed says this has to do with wanting to be out of the mortgage market, and I suppose that's plausible.  The conspiracy theorist might wonder if it has more to do with ballooning Treasury issuance and lackluster fiscal revenue.  At first glance, this is bad for the mortgage market. 

At second glance, we already knew the Fed wanted to hold Treasuries and not MBS--an overture that goes all the way back to Bernanke.  As long as investors aren't panicked about MBS (and they're not), mortgage rates will be able to hold within a certain range of Treasuries regardless of Fed demand.  From there, excess Treasury demand lowers Treasury yields and indirectly benefits MBS/mortgage rates.

From a technical standpoint, so many good things happened in the past 24 hours.  2.63% in 10yr yields was confirmed as a ceiling.  The short-term consolidation pattern (yellow lines) was broken in our favor.  The previous long-term low of 2.55% was broken (and now has a chance to become a technical ceiling).  And momentum metrics aren't even at extreme 'overbought' levels (i.e. there was a much stronger case for an overbought bounce during the late 2018 rally, as seen the white circled areas at the bottom of the chart).

2019-3-21 open

With the above chart in mind, anything other than a substantial sell-off would be a victory today.  Simply holding under 2.55% means all of the positive technical cues are confirmed.

MBS Pricing Snapshot
Pricing shown below is delayed, please note the timestamp at the bottom. Real time pricing is available via MBS Live.
FNMA 3.5
101-01 : +0-02
10 YR
2.5160 : -0.0210
Pricing as of 3/21/19 10:25AMEST

Tomorrow's Economic Calendar
Time Event Period Forecast Prior
Thursday, Mar 21
8:30 Philly Fed Business Index * Mar 4.5 -4.1
8:30 Jobless Claims (k) w/e 225 229
8:30 Continued jobless claims (ml) w/e 1.772 1.776
10:00 Leading index chg mm (%) Feb 0.1 -0.1