Check out the companies making headlines before the bell. Domino’s Pizza — Shares plunged more than 13% on the company’s mixed second-quarter results. Domino’s posted $4.03 earnings per share, topping an LSEG estimate of $3.68 per share. However, revenue came in line with estimates at $1.1 billion. U.S. comparable store sales also grew slightly less than expected. United Airlines — Shares of the airline added 1.5% before the bell after it said profit jumped 23% last quarter . However, United also shared a disappointing current-quarter outlook, saying that it anticipates adjusted earnings to range between $2.75 and $3.25 a share. Analysts polled by LSEG had estimated earnings of $3.44 per share. Discover Financial Services — The stock gained 3.5% after posting better-than-expected second quarter results. The bank and payments company posted $6.06 in earnings per share on $4.54 billion in revenue. Analysts polled by LSEG had forecasted $3.07 earnings per share on $4.17 billion in revenue. Warner Bros. Discovery — The stock rallied nearly 6% after the Financial Times reported that the company is weighing over efforts to boost its struggling stock. According to those familiar with the matter, the company is considering a range of options, including spinning off its digital streaming and studio businesses. Alaska Air Group — Shares dipped by more than 1% after the airline posted a revenue miss in the second quarter. The company also narrowed its full-year earnings guidance to a range of $3.50 – $4.50 per share, while analysts polled by FactSet had forecasted $4.52 earnings per share. Blackstone — The investment firm pulled back by 2% after posting a miss on both top and bottom lines in the second quarter. Blackstone reported distributable earnings per share of 96 cents on $2.52 billion in segment revenue. Analysts surveyed by FactSet had estimated 98 cents earnings per share on $2.58 billion in revenue. Beyond Meat – Shares of the alternative meat producer declined 12%. The Wall Street Journal , citing people familiar with the matter, reported that Beyond Meat has engaged with a group of bondholders to start discussions around restructuring its balance sheet. Taiwan Semiconductor — U.S.-listed shares of Taiwan Semiconductor gained 1.2% after the chipmaker posted better-than-expected second-quarter results. The company earned NT$247.85 billion on revenue of NT$673.51 billion. Analysts polled by LSEG expected net income of NT$238.8 billion on revenue of NT$657.58 billion. Alcoa — The aluminum company advanced 1.1%. Alcoa posted adjusted earnings of 16 cents per share, beating analysts’ forecast for 9 cents per share, according to LSEG. Revenue also came in higher than anticipated at $2.91 billion, while analysts had estimated $2.84 billion. Toast – Shares of the restaurant tech stock rose more than 3% after an upgrade to outperform from neutral at Mizuho. The investment firm suggested that Toast may be able to negotiate lower fees to credit card companies as it continues to scale. Kinder Morgan — Shares dropped 2% after Kinder Morgan posted quarterly results that fell below expectations. The pipeline operator reported second-quarter adjusted earnings of 25 cents per share, less than the 26 cents per share anticipated by analysts polled by FactSet. Revenue also missed expectations. Elf Beauty — The beauty stock added 3.5% following an upgrade at Baird to outperform from neutral. The firm cited healthy brand momentum, ongoing distribution expansion and international opportunities as catalysts. It also hiked its price target to $230 from $210, suggesting nearly 35% upside from Wednesday’s close. Gap — Shares rose 2.4% after Morgan Stanley upgraded the retailer to overweight from equal weight. The investment bank also named Gap one of its favorite retail picks, citing promising topline growth and profitability. — CNBC’s Michelle Fox, Jesse Pound and Samantha Subin contributed reporting