There is no evidence to support the shrinking margin theory. Management did admit that we cannot expect 40% growth forever and that 20% is more likely. I doubt this note affect the stock one way or the other.
With the recent sell off since our good and greedy friends on top sold out, wouldn't be suprised if it did. Throw in the sequester, Europe and the other crapola and I think more people are easily shaken out than even a couple weeks ago. Have you read the full report? I haven't been able to but did they give reasons for their opinion margins were nearing the end of the runway?
There is so much manipulation now that were I not following them to gauge possible sentiment changes I would throw it all in the trash. Can you believe that people are still trying to push COH as a bargain? Seems like they can slant anything anyway they want, knowing enough readership will likely be swayed by their opinions.