When you see trades at the ask, and the ask drops, or the ask and the bid, but, this can also be dilution, you need to see the size of the trades, usually they use 9,900,000 size orders to dilute.
is there a site that you recommend for real time quotes and/or that give the ability to see volume on individual trades? I use my brokerage account through my bank, Wells Fargo, but there are many tools missing.