Zhang Peng/LightRocket via Getty ImagesLululemon’s (NASDAQ:LULU) stock has been on a strong run, up over 55% since last March when I started the stock with a “Buy” rating. At the time, I noted that it was a growth luxury brand that deserved a premium valuation and that margin and macro worries were overblown. That has thus far proven the case. Back in August, meanwhile, I noted I was a little less bullish in the near term, but that my long-term view was unchanged. LULU was though once again able to post ...