Here's something I came across called Jitneying, or falsfying volume by churning the stock.
The Jitney Game
Do you ever wonder about these small cap stocks that post a tiny bit of volume and then just climb and climb? One minute the
stock is trading for C$1.33 and with very little volume runs to C$2.50. Amazing? Not at all. It is the jitney game at work. This
practice is SO pervasive in the small cap market that I thought you should know about it. Otherwise, you'll get trapped in the
jitney game and lose a bundle. There are many depths to it and variations on it.