NVLT.OB has had a powerful breakout over the last coouple of days.
The stock has traded around 4M shares (float 44M) over the past two days (avg vol is typically around 300k over a two day period) and rose from $0.78 to close at $1.18 today, one penny off of its high for the day. The previous high was $1 so it's a little extended, but it looks like the momentum could continue based on the volume.
There hasn't been any news from the company itself which makes the action even more compelling IMO. If the company does put out news, this thing may really takeoff.