Take a look at the companies making headlines in midday trading. Dick’s Sporting Goods — Shares of Dick’s Sporting Goods rose 15.5% after the sporting goods retailer reported fourth-quarter results that beat expectations. Dick’s Sporting Goods reported earnings of $3.85 per share on revenue of $3.88 billion. Analysts polled by LSEG (formerly Refinitiv) expected earnings of $3.35 per share and revenue of $3.8 billion. Lennar — Shares fell 7.6% after the homebuilder reported revenue that missed expectations. Lennar’s first-quarter revenue was $7.31 billion, below the $7.39 billion expected by analysts polled by LSEG. Dollar General — The discount retailer fell 5.1% despite stronger-than-expected fourth-quarter results. Dollar General earned $1.83 per share on revenue of $9.86 billion, beating analysts polled by LSEG who had forecast earnings of $1.75 per share on revenue of $9.78 billion. SentinelOne — Shares of SentinelOne plunged 16.6% even as the artificial intelligence-powered cybersecurity vendor reported stronger-than-expected quarterly results. SentinelOne reported a fourth-quarter adjusted loss of 2 cents per share on revenue of $174 million. Analysts polled by LSEG expected a loss of 4 cents a share on revenue of $170 million. At the same time, first-quarter revenue guidance was in line with expectations. Robinhood Markets — Robinhood said stock trading volume rose 41% year over year in February, sending the financial technology stock up 5.2%. RTX — Shares of RTX rose 1.3% after Wells Fargo upgraded the stock to an overweight rating. The bank said the headwinds from a July jet engine recall were fading. U.S. Steel Corp. — Shares fell 6.4%, extending losses from Wednesday. It was previously reported that US President Joe Biden is expected to express “serious concerns” about Japan’s Nippon Steel Co.’s proposed acquisition of U.S. Steel. UiPath — The enterprise automation company reported weaker-than-expected revenue guidance, sending its shares down 6.9%. UiPath forecast first-quarter revenue of $330 million to $335 million, below the FactSet consensus of $346.8 million. Beyond that, the company is outperforming on both top and bottom lines, according to FactSet consensus estimates. Under Armor — Shares of the sportswear company fell 10.7% on news that founder Kevin Plank has returned as CEO. Evercore ISI said Plank’s return is a clear sign that Under Armor’s strategy isn’t working as the company’s results continue to deteriorate in the quarter, which downgraded the stock to underperform from consensus. Fisker – The electric car developer’s stock price has roughly halved to 15 cents a share after the company hired restructuring advisers to file for bankruptcy protection, the Wall Street Journal reported, citing people familiar with the matter. MicroStrategy — Shares fell 5.1%. The stock was trading up 1.6% earlier in the session after MicroStrategy said it would raise $500 million to buy additional Bitcoin. This comes after the software developer that acts as a proxy for Bitcoin saw its shares rise 11% on Wednesday. WW International — A 9fin report said a group of lenders to Weight Watchers had hired lawyers to prepare for debt negotiations, sending shares of the weight-loss company down 20.4%. 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.