Check out the companies making headlines in midday trading. Dick’s Sporting Goods — Shares jumped 14% after the sporting goods retailer posted fourth-quarter results that exceeded expectations. Dick’s Sporting Goods reported earnings of $3.85 per share on revenue of $3.88 billion. Analysts surveyed by LSEG, formerly Refinitiv, had expected earnings per share of $3.35 on revenue of $3.80 billion. Lennar — Shares slid 5.3% after the homebuilder posted a revenue miss. In its first quarter, Lennar reported revenue of $7.31 billion, weaker than the $7.39 billion expected by analysts polled by LSEG. Dollar General — The discount retailer added 1.8% after fourth-quarter results came in stronger than expected. Dollar General earned $1.83 per share on $9.86 billion in revenue, beating predictions of $1.75 in earnings per share and $9.78 billion in revenue from analysts polled by LSEG. SentinelOne — Shares tumbled more than 15% even after the artificial intelligence-powered cybersecurity provider posted quarterly results that were stronger than expected. SentinelOne reported a fourth-quarter adjusted loss of 2 cents per share on revenue of $174 million. Analysts surveyed by LSEG had anticipated a loss per share of 4 cents on revenue of $170 million. First-quarter revenue guidance, meanwhile, came in line with expectations. Robinhood Markets — The fintech stock popped 7% after Robinhood said its equity trading volumes rose 41% in February on a year-over-year basis. RTX — Shares rose 1.9% after Wells Fargo upgraded RTX to an overweight. The bank said headwinds from an jet engine recall in July are fading. United States Steel — Shares dipped 1.3%, extending losses from Wednesday. The decline comes following reports President Joe Biden expects to disclose “serious concern” over the proposed acquisition of U.S. Steel by Japanese company Nippon Steel. UiPath — Shares tumbled 7.4% after the enterprise automation company posted revenue guidance that was weaker than expected. UiPath forecasts first-quarter revenue of $330 million to $335 million, lower than the FactSet consensus estimate of $346.8 million. Otherwise, the company beat on the top and bottom lines, according to FactSet consensus estimates. Under Armour — Shares dropped 12.8% on news that the sportswear company’s founder, Kevin Plank, is returning as chief executive. Plank’s return is a clear signal that Under Armour’s strategy is not working as the company’s performance continues to deteriorate in the current quarter, Evercore ISI said, downgrading the stock to underperform from in line. Fisker — Shares halved to 15 cents per share following a Wall Street Journal report , citing people familiar, said the electric vehicle developer hired restructuring advisers for a potential bankruptcy filing. MicroStrategy — Shares gained 1.6% after MicroStrategy said it’s raising $500 million to buy additional bitcoin . The gain also comes after the software developer, which serves as a proxy for bitcoin, had risen 11% on Wednesday. WW International — Shares of weight loss company fell nearly 27% on a report from 9fin that a group of Weight Watchers lenders have hired lawyers to prepare for debt talks. The stock has fallen sharply since Oprah Winfrey left the board late last month. —CNBC’s Lisa Kailai Han, Alex Harring and Pia Singh contributed reporting.