That is because a) the market has little knowledge of Probe and b) only 3rd party assays matter. It would be more upsetting if Probe drilled the Northern targets and hit 8/gpt over 120 meters true width and the stock moved only ten cents. That being said, it appears supplies of stock are small, as per the market depth.
How are you getting the news stories of Probe? There are multiple means of media dissemination, is Probe hitting all of them? There is a lot to marketing a story.
As one shareholder put it, there are companies with junk properties that have a stock that trades and trends higher, solely because they know how to market.
Here is Probe, with an eye opening gold property, in a mining friendly location, close to power and transportation, but little marketing.
Give Dave a call, ask him how he will close the knowledge gap?