I have noticed this for some time, but never bothered to say much about it. In all charts, there is a high and low green line with the area in between shaded green. Because the charts are just an illustrative approximation, it is not possible for me to do the math to figure out exactly what these lines represent. Is it intra-day high and low? Which is actual? I cannot tell.
Example:
http://pics.bbzzdd.com/users/scleland2000/Chart.jpg
Yes, the green band is the intra-day high and low.
