Very simple....

See above 2 day chart on 6.0's...

Notice the almost unbreakable line established yesterday at 100-28.

Then notice the almost unbreakable line today at 100-28.

Then consider the fact that we closed today at 100-28+, and the case continues to be built for higher highs and higher lows.

All in all, a perfect day for our long term outlook on MBS.  We knew we had to take a down day sometime soon.  We knew today woudl probably be the day.  It was.  And rather than getting pounded, we were simply able to ride the 100-28 trendline.

Float confidently in the absence of headline risk, spread blowouts, etc...  

Take profits if you are short term, but for you longer termers (2-3 weeks), this weeks price action, fundamentals, and technicals bode well for the near future.