Check out the companies making headlines in premarket trading. Walmart â The retail giant gained about 4% after posting fiscal third-quarter results that surpassed Wall Street’s estimates. Walmart also boosted its guidance as customers buy more than groceries. Lowe’s â The home improvement retailer’s shares fell 1.7%. Although the company reported a top- and bottom-line beat in the fiscal third quarter, it estimates sales will fall year over year. Lowe’s forecasts comparable sales to drop from 3% to 3.5%, slightly better than the 3.5% to 4% decline it previously anticipated. Super Micro Computer â The server maker soared around 26% after announcing BDO as its new auditor. The news came after Ernst & Young stepped down last month. Super Micro also provided a plan to the Nasdaq on how it will stay in compliance with exchange’s rules. Symbotic â The automation technology company surged 28.5% after beating expectations for revenue in the fourth fiscal quarter. Revenue came in at $576.8 million in the fourth quarter, well above the $470.2 million figure penciled in by Wall Street. Symbotic also offered strong current-quarter top-line guidance. AeroVironment â The stock dropped 5% after the defense contractor announced it was acquiring BlueHalo in an all-stock transaction valued at $4.1 billion. AeroVironment said the deal will “usher in the next ear of defense technology” for the company. BioNTech â Shares gained 1.9% after Evercore ISI upgraded the German biotechnology company to outperform from in line. Evercore ISI said the “chaos” following President-elect Donald Trump’s election of Robert F. Kennedy Jr.’s nomination to the Department of Health and Human Services is a buying opportunity for investors. Nvidia â Stock in the artificial intelligence darling and market bellwether advanced about 1.5% in premarket trading. Nvidia is set to report third-quarter results on Wednesday, and investors will be paying particularly close attention to demand for the company’s Blackwell chip . â CNBC’s Sarah Min, Samantha Subin, Hakyung Kim, Sean Conlon, Brian Evans and Michelle Fox contributed reporting