Haven't seen these kind of immediate swings in a good while.
Dare I say the market is 'coiling up' for a good 5 dollar upward move? Last time this happened (IIRC) was when silver shot from around 18-the 25 mark....then from 25 to almost 30. I believe this was around a year and a half ago before the long period of sideways movement.
Then again, could be a precursor to a free-fall, lol. As we all realize, only Ben and puppet-masters know.