Well, there it goes again. If it was the same buyer and seller...

Well, there it goes again. If it was the same buyer and seller each day, one would think that someone would have bought or sold enough to register either a "change of substantial holding" or "becoming a substantial holder". That didn't happen all the way down from 21c. This implies to me that there is a certain amount of churning going on, i.e. moderate holders repeatedly buying and selling between each other to give an illusion of depth. One reason I can think of is to keep the VWAP down and scare away retail investors, which implies someone with an agenda. This is purely IMHO and pure speculation, there may be a perfectly legitimate reason for the SP action, such as the fall in price of gas.