Check out the companies making headlines in premarket trading. Home Depot — The home improvement retailer gained 2.4% after it stuck by its guidance for the full year . CFO Richard McPhail also told CNBC Home Depot doesn't plan to increase prices due to tariffs. Viking Holdings — Shares of the cruise line fell 5.6% despite first-quarter results coming in better than expected. Viking lost 24 cents per share, excluding items, on revenue of $897.1 million. Analysts polled by FactSet expected a loss of 29 cents per share on revenue of $841.2 million. Hewlett Packard Enterprise — The cloud tech stock gained advanced 3% following an upgrade to outperform from Evercore ISI, with analyst Amit Daryanani labeling its risk-to-reward skew as an attractive entry point for investors. Uber Technologies — Shares gained 1% following news that Uber, as well as Waymo, will partner to foster autonomous ridesharing in Atlanta. Pony AI — The U.S.-listed shares of the autonomous vehicle technology company jumped more than 5%. The Guangzhou, China-based company posted strong quarterly results driven by growing demand for Pony AI's robotaxi services. The company also said it plans to expand its fleet to 1,000 vehicles by year-end. MongoDB — Shares of the database company ticked down 2% after a downgrade to hold at Loop Capital. Analyst Yun Kim cited "lackluster" market adoption of the company's Atlas platform as one of the catalysts for the rating change. Amer Sports — Shares of the sports equipment conglomerate surged 10% after first-quarter results surpassed analyst estimates. Amer reported earnings per share of 27 cents, excluding items, on revenue of $1.47 billion. Analysts surveyed by FactSet were looking for 15 cents per share and revenue of $1.39 billion. Bilibili — The Chinese video sharing company added 3% after first-quarter results beat analyst estimates, while daily active users increased to 106.7 million compared to 102.4 million a year ago. — CNBC's Michelle Fox, Sarah Min and Alex Harring contributed reporting.