erythrite, you are saying "a sell is not accumulation" but if the buying volume (shares hitting the ask) exceed the selling volume (shares being sold on the bid) it's possible for a stock to go down in price but still be under accumulation.
if you cannot watch level 2 with scottrade then i would suggest subscribing to alphatrade. but my guess is you already have access to L2 via your brokerage account. just call them and ask how you can pull up a L2 window for DPDW and they will walk you through it.
Cmf can expose accumulation which may not appear from tape watching; also distribution. All short term stuff. I try not to get distracted by it.......Sam
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