It's been a disappointing year for this premium apparel stock.Oh, how the mighty have fallen. Since hitting a record of $511.29 at the end of 2023, share prices of Lululemon Athletica (LULU -1.72%) have cratered 44%. This is despite the S&P 500 generating an impressive 18% total return during the same period.To be clear, this apparel stock has still been a massive market outperformer in the past decade (up 650%). However, investors have become pessimistic about the state of the business.What's the best cour ...