There's an inherent risk in viewing 2-day charts on days that follow major market movement--days like today.  The risk is complacency, and it's consequence: getting caught off guard by a reprice you might not have seen coming.

The problem arises because the previous day sets a massive y-axis for the 2-day chart.  Today's movement therefor looks small, and more importantly, non-threatening. 

For instance, charts look pretty good right now, but both Fannie 3.0s and 3.5s are down an eighth of a point from 9:40am levels.  That's enough for negative reprice risk for any lenders pricing around that time. 

Granted, it would take 2-3 more ticks of weakness for negative reprice risk to be widespread, but the point is that SOME level of risk is here already, even though the charts might not have suggested that at first glance.