The renewal of the exclusive rights to produce Duke University fanwear for the mass retail channel is likely to have a positive impact on HanesBrands' stock in the short term. This partnership extension not only secures a steady revenue stream from the sale of fanwear but also reinforces HanesBrands' position in the apparel market. The deal's exclusivity and the popularity of Duke University's merchandise among fans could drive sales, enhancing the company's financial performance and potentially leading to a positive investor sentiment towards HBI.