Keep in mind that we are nearing the official close of the markets for today (30 minutes from now), and that we don't put significant stock in price fluctuations after that time.
However, we are testing the bottom support level of one of our technical indicators currently with the 5.5 down 1 tick on the day at 99-20. Granted, this is not worse than the lows of the day, but considering the recent trading activity, and the technical probabilities it suggests, this is a danger zone.
If we drop another tick and possibly hold that level for 5 minutes, reprices for the worse could become more likely.
It is unlikely that you will see a reprice for the worse simply owing to the current state of the data. This is a heads up that an early technical indicator (which would take too much time to explain on an alert) is suggesting potential weakness.