This is what happens when you have long term oversold conditions, ie an imbalance in supply and demand, and now you're seeing a complete lack of sellers at these levels. The buying will now snowball, you'll see some shorts get squeezed, but essentially this is simply a reflection that the market is now recognizing that it priced Jones too low. The market has a tendency to move to far in whichever direction it's trending, and now we're seeing not only a reversion to the mean but also a possibly much more bullish outlook.
Closer to what's been going on over the past few weeks. There were a few larger than usual individual trades trades than recent days days but a largr number of trades like 802 shares or many 150 share trades.