Check out the companies making headlines before the bell: Hanesbrands , Gildan Activewear — The T-shirt maker surged more than 42% after the Financial Times reported , citing people familiar with the matter, that Hanesbrands was nearing a deal to be acquired by Gildan for nearly $5 billion. Gildan shares slid more than 5%. Sinclair — Shares soared more than 18% after Sinclair, one of the largest owners of television stations, started a strategic review of its business that could result in a merger or spinoff of its Ventures business. On Holding AG — U.S. shares of the Swiss sportswear company rallied about 11% on reported second-quarter revenue of 749 Swiss francs, exceeding the expectation for 705 million francs from analysts polled by LSEG. The company also hiked its full-year revenue guidance. Celanese — The chemical manufacturer tanked 15% after the company’s CEO said demand remains weak and uncertain, overshadowing a second-quarter earnings beat. BigBear.ai — The IT service management company plunged more than 30% after disappointing second-quarter results. BigBear.ai lost 71 cents per share, more than a loss of 6 cents per share estimated by analysts polled by FactSet. Revenue of $32.5 million trailed the Street’s $40.6 million forecast. Circle Internet Group — The stablecoin issuer repo …