Thanks cfudge - welcome! I really like your comment that "You got me thinking yesterday". That is what collaboration does, we are not using the same old assumptions and actually starting to look at the charts. When we do that, we start to see different correlations. Your observation of the AO is sound that in many cases (more often than not) a color change does indicate a price swing. How far and how long? Who is to say. But we are working in the same direction here. I love it!