Remember when we talked about comparing stock price behaviour over the current month to historical months? >No. Well, it's here. The spreadsheet finds the "best" historical match to the current month and extrapolates to see what next month might be like. Anyway, I ran across a website that mentioned this comparison spreadsheet. He calls it the Ponzo Time Machine. However, the author does one better: He identifies the five best historical matches and extrapolates from all five. That is **SO** slick. Now why didn't I think of that!?

DOW: extrapolated

Anyway, I've modified the spreadsheet to allow you to go forward or backward to check out all the "best" matches.
Now that's great fun!!

Here's what I get for the DOW (where, by "best", I minimize the max |error|:

Best match: Max|error| =11.63

2nd-Best match: Max|error| =14.46

3rd-Best match: Max|error| =17.76

4th-Best match: Max|error| =19.23