$Lululemon Athletica $ is slated to report its results for the third quarter of fiscal 2021 after the market close on Thursday, Dec. 9.Investors in the athletic apparel retailer are probably feeling optimistic about the report. Last quarter, revenue and earnings crushed Wall Street's consensus estimates, third-quarter guidance for both the top and bottom lines came in higher than analysts had been expecting, and management significantly hiked its full-year outlook for both revenue and earnings.