It gets knocked out of the game during periods of more volume, but it's been chipping the price down for a while now.
It's an algo design that bases it's movements on weighted volume, so it will automatically sell into the bid price at a per determined interval underneath a certain volume/time period.
usually every 30 - 90 odd seconds as that gives the illusion of more volume for others looking only at # of trades.
Very common, very annoying...
It's pretty oversold now under under the VWAP, if your looking at charts there's an argument for a B (ABC)wave correction but I'm still keeping an eye on the 200 EMA as a big deal...
