"Everyone is waiting for the next results and as someone on the McF hub used to say : "the price is what the market values the company in the moment" (which I believe is BS)."

It's hard to accurately determine what the value of a company is at any point in time owing to the fact that all the information necessary to make a valid appraisal is seldom available.  Suffice to say that the value is somewhere on the pendulum swing between the very optimistic and the MM's or market conditions.

What ever the price of the company on the tape is in that moment is the price of that stock if you sell at that time.  Granted it is perhaps not it's true value, but it is what people are willing to pay for it.  Supply and demand.