Look at the Bid and Ask Spread
Lots of confidence on the part of ENTB stockholders, it looks like to me. Bidders are trying to get in on the new ground floor (2.00), which is a .10 improvement on the opening, too. Nice, strong stock this week, is my guess. I think it stays above that new ground floor even on end-of-day profit taking activities.
Looks like the price was just bid up, almost back to its high today. That's nice, considering it's only 1:00PM on the East Coast.