Check out the companies making the biggest moves midday: Freeport-McMoRan — The miner rose 3.1% as gold and other metals scaled to record levels. Target — The retailer rose more than 1% after the Financial Times reported, citing sources, that hedge fund Toms Capital Investment Management made a big investment in Target. Pressure from the activist investor comes as Target is down more than 27% for the year. Coupang — The Korean e-commerce company rallied 8% after the company said the perpetrator of a cybersecurity incident had been identified. The company added that leaked data pertained to only 3,000 accounts and was limited . Nvidia — The semiconductor firm’s stock rose 1% after it agreed to pay $20 billion to acquire assets from artificial intelligence startup Groq, marking its largest purchase ever. Airline stocks — Shares of airlines fell as a winter storm threatened to foil flight schedules. United Airlines and American Airlines shed 0.7% and 1.9%, respectively. Delta lost 0.6%. — CNBC’s Liz Napolitano contributed reporting.