Check out the companies making headlines in midday trading. Nvidia – Shares fell nearly 5% as Nvidia took a breather from its winning streak. Earlier in the session, the stock hit a new 52-week high. The chipmaker has gained 7% since the beginning of the week and is on its way to its ninth consecutive winning week. Marvell Technology — The chip company fell more than 10% on the back of first-quarter earnings and revenue forecasts. Marvell Technology said it expects adjusted earnings of 23 cents a share for the first quarter, below the 40 cents expected by analysts surveyed by LSEG, formerly known as Refinitiv. Carvana — The automotive e-commerce platform rose more than 5% after RBC Capital Markets upgraded the stock from sector underperformer to underperformer, citing a reasonable valuation. Costco — The stock fell 7% after the department store club reported revenue of $58.44 billion for the fiscal second quarter, below the consensus estimate of $59.16 billion, according to LSEG. However, earnings per share beat expectations. Eli Lilly — Shares of the pharmaceutical company fell 2% after the U.S. Food and Drug Administration postponed approval of its Alzheimer’s drug known as donanemab. An independent advisory committee is expected to review the drug further. Broadcom — Chip stocks came under pressure, falling nearly 7% as semiconductor names sold off and gave back some of their 2024 gains. The drop also came after Goldman Sachs reiterated its rating of buy on Broadcom, saying investors should buy after the dip. Textron — Textron advanced 2% after Bank of America upgraded the aircraft maker to a buy rating, citing its strong revenue growth prospects. MongoDB — The database software company fell more than 6% after posting softer-than-expected forecasts for the first quarter and full year. Despite the disappointing forecast, MongoDB beat estimates in its latest quarter, posting adjusted earnings of 86 cents per share on revenue of $458 million. Gap — Gap rallied nearly 4% thanks to strong holiday quarter results. The retailer reported earnings of 49 cents a share on $4.30 billion in revenue, beating the 23 cents a share and $4.22 billion in revenue expected by analysts surveyed by LSEG. The company also said its Old Navy brand returned to growth for the first time in over a year. New York Community Bancorp – Shares of the regional bank fell 5% even after Moody’s Investors Service announced it had placed NYCB on “upgrade review.” The stock is still well above Wednesday’s weekly lows, which came before NYCB announced a $1 billion capital raise. Samsara – Internet of Things stock jumped 10% after Samsara beat fourth-quarter revenue expectations and a rosy revenue forecast. Samsara posted revenue of $276 million, compared to analysts’ expectations of $258 million, according to LSEG. DocuSign — The stock gained 4.8% after the company, which provides electronic signature products, beat fourth-quarter earnings expectations and gave positive guidance for the first quarter. DocuSign reported adjusted earnings of 76 cents per share on revenue of $712 million for the period. Analysts polled by LSEG had expected earnings of 64 cents a share on revenue of $699 million. Amylyx Pharmaceuticals – The pharmaceutical stock plunged more than 80% after announcing that its ALS drug failed to meet its goal in a late-stage trial. Amylyx Pharmaceuticals said it may withdraw the drug from the market. UBS – Shares of the U.S.-listed Swiss bank rose more than 3% after Morgan Stanley raised the stock to overweight from equal weight. Morgan Stanley said an increase in investment banking activity could boost UBS shares. Li Auto – The Chinese auto company’s U.S.-listed shares fell less than 1% even after Deutsche Bank named the stock a top pick. The Wall Street firm called Li Auto “the sweet spot in China’s automotive electrification megatrend.” – CNBC’s Yun Li, Jesse Pound, Pia Singh, Sarah Min, Michelle Fox and Hakyung Kim contributed reporting.