I'd say hoots is the best to ask this. I use the built in...

I'd say hoots is the best to ask this. I use the built in charting system of my IRESS live trading system and the web chart of the westpac web system and my own strange thing I created in XL which tracks the whole portfolio and has proven remarkably accurate in predicting downturns in GXY, even though it actually tracks the portfolio and GXY is not the biggest component of it. Right now, for instance it is very happy, going almost vertical and has been since October, but it has been gyrating madly all year.