Check out the companies making headlines before the bell: Nvidia — The chipmaker dropped around 2% to lead tech shares lower, with traders trimming positions in the AI giant as global trade tensions escalate following President Donald Trump’s latest tariff threat over Greenland. J.B. Hunt Transport Services — The transportation and logistics company fell more than 2% after it reported a year-over-year revenue decline for the fourth quarter. Final mile services revenue of $206 million fell short of the $213 million FactSet estimate, down 10% from “general soft demand across many of the end markets served and a change in mix.” Micron — Shares fell 1.5%, after the semiconductor company signed a letter of intent to buy Powerchip Semiconductor Manufacturing Corporation’s fab in Taiwan for $1.8 billion in cash. 3M — The maker of Post-it Notes and Scotch Tape fell 4% after releasing its latest earnings results and full-year guidance. 3M sees earnings in the range of $8.50 to $8.70 per share for the full year, compared to the FactSet consensus estimate of $8.64. It reported mixed results for the fourth quarter, topping earnings estimates but falling short of revenue expectations. Fifth Third Bancorp — Shares added 1% after the regional bank reported fourth-quarter earnings of $1.04 per share, exceeding the $1 per share estimate analysts polled by FactSet had provided. However, the company’s net interest income of $1.53 billion came in under the forecast $1.54 billion, while its net interest margin was in line with estimates at 3.13%. D.R. Horton — The homebuilder climbed 2.9% higher after its fiscal first-quarter results beat expectations. D.R. Horton’s earnings came in at $2.03 per share, beating the $1.93 a share expected from analysts polled by FactSet. Revenue was $6.89 billion, topping the $6.59 billion consensus estimate. KeyCorp — Shares fell 3% as the bank’s fourth-quarter results, while above analyst expectations, underwhelmed investors. Revenue came in at $2.01 billion, topping a FactSet consensus estimate of $1.96 billion. Net interest income was $1.22 billion for the three-month period, or higher than analysts’ forecast of $1.2 billion. Fastenal — The maker of fasteners slid more than 4% after posting results that showed earnings and revenue come about in line with estimates. Fastenal posted earnings of 26 cents per share on revenue of $2.03 billion. Analysts polled by FactSet anticipated earnings of 26 cents per share on revenue of $2.04 billion. Lululemon — The athletic apparel stock fell 1.8% after Semafor reported , citing people familiar, that founder Chip Wilson is trying to excise private equity firm Advent from the company’s board in an ongoing proxy battle. JPMorgan — The stock dropped 1.6% following President Donald Trump’s threat over the weekend to sue JPMorgan Chase , after alleging it debanked him following the Jan. 6 riot in the U.S. Capitol. US Bancorp — Shares gained 1.2% after U.S. Bancorp posted a beat in its fourth-quarter earnings report. U.S. Bancorp posted earnings of $1.26 per share, better than the $1.19 expected by analysts polled by FactSet. Net interest income of $4.31 billion exceeded the consensus forecast for $4.27 billion. — CNBC’s Michelle Fox, Lisa Han, Liz Napolitano and Fred Imbert contributed reporting