Check out the companies making headlines before the bell. Humana – Shares plunged more than 22% after the healthcare company announced dire preliminary Medicare Advantage data for 2025. The company said in an 8-K filing that 25% of its members are currently enrolled in plans rated 4 stars and above for next year, which is down from 94% in 2024. Nike – Shares sank 7% after the athletic apparel and sneaker company withdrew its full-year guidance . Nike, which posted an earnings beat and revenue miss for its fiscal first quarter, also postponed its investor day as its new CEO prepares to take office. China stocks – Shares of Chinese companies continued to gain amid the broader stimulus rally . E-commerce company JD.com and electric vehicle maker Li Auto both advanced more than 9%, while tech company Baidu and Temu parent PDD moved more than 6% higher. Fellow e-commerce company Alibaba also jumped more than 4%. Lamb Weston – Shares of the French fry maker company fell 5% after the company warned in its fiscal first-quarter that demand looks soft for restaurants and frozen products. Lamb Weston’s adjusted earnings for the period did come in slightly higher than expected at 73 cents per share. Analysts surveyed by LSEG were looking for 72 cents per share. Diamondback Energy – The oil stock rose 3% following an upgrade to overweight from equal weight at Barclays. Analyst Betty Jiang said that Diamondback had one of the “clearest positive event paths,” nodding to the firm’s $26 billion merger agreement with Endeavor Energy Resources. LPL Financial – Shares slid 3.4% after LPL Financial fired CEO Dan Arnold for allegedly violating its “commitment to a respectful workplace.” The firm said Rich Steinmeier, chief growth officer, will take over as interim CEO. Harley-Davidson – The motorcycle maker’s stock fell 4% after receiving a downgrade to neutral from buy at Baird. The firm cited risks to its third-quarter guidance, including both a weak retail outlook and excess inventory. Energy stocks – Shares of energy companies rose following Iran’s missile attack on Israel . APA Corp and Marathon Oil both rose more than 2%, and Occidental Petroleum rose more than 1%. — CNBC’s Lisa Kailai Han, Jesse Pound, Sarah Min and Michelle Fox Theobald contributed reporting.