I counted prior to the last two big volume days 6.8 million shares traded from April 1st til 2 days ago. With the last two high volume days another odd 2 million was traded. That means the entire float has turned over in that time. More importantly approx 25% has changed hands in the past 4 days..
In short we have some profit takers, rookies, investors etc..Nevertheless, the snowball is moving up the hill and we should see a definite nice pop on lighter than expected volume as the float gets munched..Many will be left behind at a moments notice, imo..