pvoutov (10/18/2011)
There are two different ways to calculate weekly returns. The methodology you're using implies holding for an entire week (using weekly prices). A more complicated methodology would compound daily, I'd be interested in seeing a CTE solution for it if one exists.
Supply some sample data in an easily-consumed format, a sample of required output...and wait a while.
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
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