Check out the companies making headlines before the bell: Berkshire Hathaway — Class B shares of Warren Buffett’s conglomerate dipped nearly 1% in premarket after Berkshire’s operating profit fell 4% year over year to $11.16 billion in the second quarter, affected by a decline in insurance underwriting. Buffett’s cash hoard of $344.1 billion remained near a record high. The conglomerate was a net seller of stocks for the 11th quarter in a row. Amphenol — The cable parts supplier rose 2% after agreeing to acquire CommScope’s connectivity and cable solutions business for $10.5 billion in cash. The sale is expected to close within the first half of 2026. Shares of CommScope surged 42%. Loews — Shares added 2% after the insurance company reported second-quarter earnings of $1.87 per share, higher than its year-ago profit of $1.67 per share. The company’s last-quarter revenue of $4.56 billion also marked a 7% rise from its year-ago sales of $4.27 billion. Energizer — The stock jumped 9% after the battery manufacturer reported a revenue beat for its third quarter and raised its full-year guidance. Energizer now anticipates adjusted earnings between $3.55 to $3.65 per share for the full year, up from its prior guidance of $3.30 to $3.50 per share. That’s above the consensus estimate of $3.37 per share, according to FactSet. Wayfair — The furniture retailer surged 9.5% after it blew past Wall Street expectations for the second quarter. Wayfair earned 87 cents per share, excluding items, on $3.27 billion in revenue, while analysts polled by FactSet anticipated 33 cents in earnings per share and $3.13 billion in revenue. Tyson Foods — The maker of Ball Park franks and Jimmy Dean sausage rallied 4% after fiscal third-quarter adjusted earnings of 91 cents per share topped the 80 cents estimated by analysts surveyed by FactSet. Revenue of $13.88 billion also came in above the expected $13.54 billion. On Semiconductor — The semiconductor maker dropped 7% after issuing lackluster third-quarter guidance of 54 cents to 64 cents per share, while analysts polled by FactSet anticipated 58 cents per share. The lower end of expected revenue of $1.465 billion to $1.565 billion fell short of the consensus estimate of $1.50 billion. On Semi met earnings expectations and topped revenue estimates in its second quarter. Bruker — The maker of scientific instruments for molecular research shed 4% after lowering fiscal-year earnings and revenue guidance. Bruker expects earnings to reach $1.95 to $2.05 per share, down from a previous $2.40 and $2.48 per share. Bruker’s updated revenue guidance to a range of $3.43 billion to $3.5 billion, also below the prior $3.48 billion to $3.55 billion. Boeing — The maker of commercial jetliners slipped less than 1% after 3,200 machinists in the St. Louis area went on strike on Monday. The strike began after the workers, represented by the International Association of Machinists and Aerospace Workers union, rejected Boeing’s latest labor proposal. Spotify — Shares gained 4% after Spotify said it would raise the price for its premium individual subscription in several markets. Tesla — The electric vehicle stock added 2% after Tesla’s board approved a compensation package for CEO Elon Musk consisting of 96 million shares of restricted stock valued at a total of about $29 billion. — CNBC’s Michelle Fox, Alex Harring, Yun Li and Sarah Min contributed reporting.
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