Not only that, but it's a set of volume days, grouped, what they look like, and if a set like this came earlier, compare, look for signs of a PPS rise from latest verses other, disparate volume, etc.
This one looks great http://www.nasdaq.com/symbol/rdml/historical especially if no one else is playing it, pumping, so that if not it definitely increases the chance someone who knows more than 100% of just 'average investors' is buying.
Paper trails from stop-signs, SOS, other paper activity that makes it's way along the line... sometimes gets attention from someone/ones reading it.
Some of the really great PPS plays are those that someone buys into, not a lot of shares, then it sets for a few weeks or even months.
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