IBM, United Airlines, Zions Bancorp and more

Pedestrians walk past the IBM building in New York.

Scott Mlyn | CNBC

Check out the companies making headlines after the bell on Monday:

IBM – Shares of the computer hardware company rose 2.9% after IBM reported better-than-expected results for the first quarter. IBM posted earnings per share of $ 1.77 on revenues of $ 17.73 billion. Analysts polled by Refinitiv expected earnings per share of $ 1.63 on sales of $ 17.35 billion.

United Airlines – Shares of United Airlines fell 1.8% after the company reported worse-than-expected first-quarter results. United lost $ 7.50 a share on sales of $ 3.22 billion. Analysts polled by Refinitiv expected a loss per share of $ 7.08 on revenue of $ 3.26 billion.

Equity Lifestyle – Shares of the real estate company rose slightly after Equity Lifestyle reported first quarter results that exceeded analyst expectations. The company recorded earnings per share of 64 cents on sales of $ 296 million. Analysts polled by FactSet predicted earnings per share of 60 cents on revenue of $ 274.8 million.

Zions Bancorp – Stocks of the bank rose 1.8% on a stronger-than-expected profit. Zions Bancorp made $ 1.90 per share. Analysts polled by FactSet expected earnings per share of $ 1.18.

Steel Dynamics – Shares of the steelmaker fell slightly, even after the company reported better-than-expected first-quarter results. Steel Dynamics posted earnings per share of $ 2.10 on revenues of $ 3.54 billion. Analysts polled by FactSet predicted earnings per share of $ 1.86 on revenues of $ 3.41 billion.

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