I have seen this happen on wamuq and other stocks before. I dont know why but when MM change their prices from say .03 to .04 I see the price go .03,.02,.01,.02,.03,.04 then it stops changing. I see this on my L2 etrade on wamuq all the time. Sometimes a buy or sell will pop in durring the change. It is never very many shares but I would like to be the lucky one to get those instant profits.