Colonial has thrown up some interesting numbers.

337 up to 457 gave a range of 120. 406 up to 598 gave a range of 192. 461 up to 647 gave a range of 186.

Up around 630 to 640 indicated therefore a selling zone and probable retracement. This was also the third leg up, indicating the next retracement could be to the mid point of the larger time frame - on the monthly, half way between say 340 and 640, which CGH is doing now it seems. $ 5 may be a buy zone.

There was another interesting feature showing 640 as a sell zone. The double bottom at 460 was confirmed when 540 broke, giving an upside target of 460 + (2x(540-460)) = 620