Take a look at the companies making headlines in midday trading. Tesla — Shares of Tesla fell about 4% after the electric car company missed third-quarter deliveries. Deliveries were 462,890 units, compared with the FactSet estimate of 463,310 units. Nike – The sportswear and footwear stock fell 6% after the company withdrew its full-year guidance and postponed its investor day scheduled for November due to an impending chief executive change. However, the company reported fiscal first-quarter profit and revenue that beat Wall Street expectations. Humana – The healthcare stock plunged more than 17% after releasing preliminary 2025 Medicare Advantage data. Humana said in its 8-K filing that 25% of its membership is currently enrolled in plans rated 4 stars and above next year. This is down from 94% in 2024. CHINA STOCKS – Chinese stocks continue to rise, driven by China's sweeping stimulus measures. JD.com rose 5%, rising for a fifth consecutive day. Pinduoduo ( PDD ), another e-commerce brand, rose 3%. Overseas exchange-traded funds tracking China's stock market rose even though mainland markets were closed for the week, with the Kingsoft CSI China Internet ETF (KWEB) rising nearly 4%. Harley-Davidson – The stock fell 3% after Baird downgraded the stock to neutral from buy. The motorcycle maker's third-quarter forecast is at risk after dealers reported weak retail activity, excess inventory and subdued sentiment, the company said. Lamb Weston Holdings — Shares of Lamb Weston Holdings rose more than 2% after the French fry giant's fiscal first-quarter results beat expectations. Lamb Weston reported earnings of 73 cents per share on revenue of $1.65 billion. Analysts polled by LSEG expected earnings of 72 cents per share on revenue of $1.56 billion. Lamb Weston warned of weak demand but announced spending cuts to improve cash flow. Diamondback Energy — Shares of Diamondback Energy rose 1% after Barclays upgraded the energy company to overweight from equal weight, citing its $26 billion merger agreement with Endeavor Energy Resources. Conagra Brands — The packaged foods company's shares fell 9% after disappointing fiscal first-quarter results. Earnings per share were 7 cents below expectations. The company reported revenue of $2.79 billion, compared with FactSet's estimate of $2.84 billion. —CNBC’s Lisa Han, Yun Li, Jesse Pound, Michelle Fox and Sean Conlon contributed reporting