Reading message boards can give some hints of info
Post# of 72440
Not to mention the gigantic volume in the past few days, the much lesser volume today (but, the very large buys in the last 15 minutes), and the extremely peculiar behavior we've seen in the inaccurate Level 2. By that I mean the gigantic supposed "asks" (e.g., 77,000 shares) which magically disappear the millisecond that a real buyer comes in at that level; the large bids which move up as soon as a bid comes in one cent above the large bid; the 100 share "trades" that were one cent below the level where a real purchaser had a bid sitting (this, to make it look as if the stock were declining, after a big purchase); and other odd things.