Just a couple of comments on the trading. One is that when stocks are experiencing weakness or a pullback, the MMs take it down to it's lowest point before 11:00 AM eastern to flush out the folks that have to settle any debit balances that were buying on margin or debit. Most brokers require you to settle trades by 11:00 am Eastern when you have a debit balance. This forces folks who are at a loss to sell before then.
Second point: When a stock is trading above its announced PP price, it is very bullish.