I finally got my Excel add-in update to keep track with the Yahoo quote severs which underwent some very dislocating changes. I haven't been able to work with historical data for over a month.
I have modified the spread sheets in the intro here to try to capture some rotation within the Fidelity Sector funds.
Take a look and let me know if it is of any use for you. I do find the sector rotation information to be eminently useful and is changing my views on things quite a bit.
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