We're at the lows of the day, but the trading range has been very tight : from 101-21 to 101-29.  So we're eight ticks down from the peak.  If you suspect your lender priced at the peak around 10AM, you might see a reprice for the worse.  But the likelyhood and the severity are both miniscule, especially considering what's likely to come in the first part of January. 

We're currently at 101-21 on 4.5's.  Treasuries are in the tank on the long end and slightly off on the short end.  Tons of tightening today.