Here’s a look at the companies making headlines in extended trading: Discover Financial — Shares edged down 1%. The financial services company reported third-quarter results that beat expectations, with earnings of $3.69 per share on revenue of $4.45 billion. Analysts polled by London Stock Exchange Group (LSEG) expected earnings of $3.42 per share on revenue of $4.35 billion. CSX – The rail transportation company’s third-quarter results fell short of Wall Street expectations, sending shares down 4%. CSX reported earnings of 46 cents per share on revenue of $3.62 billion, while analysts polled by LSEG expected earnings of 48 cents per share on revenue of $3.67 billion. Overall sales volume increased by 3% compared with the same period last year, but unit revenue fell by approximately 1%. Alcoa — Shares of the aluminum producer rose nearly 9%. Alcoa’s third-quarter adjusted earnings per share were 57 cents, higher than analysts’ expectations of 28 cents per share, according to LSEG data. Revenue met the target at $2.9 billion, compared with Wall Street expectations of $2.97 billion. Lucid Group — The electric car maker announced a public offering of more than 262 million shares, sending its shares down 10%. Lucid also said that Ayal Third Investment Company, an affiliate of the Public Investment Fund, said it would buy more than 374 million shares. Kinder Morgan — Shares of the energy infrastructure company fell 2.7% on disappointing third-quarter results. Kinder Morgan reported adjusted earnings of 25 cents per share on revenue of $3.7 billion. Meanwhile, analysts expected earnings of 27 cents per share on revenue of $3.98 billion. Management also announced that it expects adjusted EBITDA and adjusted earnings per share to be 2% and 4% below budget, respectively. PPG Industries — The paint maker missed third-quarter revenue and profit targets, sending shares down less than 1%. PPG Industries reported adjusted earnings of $2.13 per share on revenue of $4.58 billion. Analysts polled by LSEG expected earnings of $2.15 per share and revenue of $4.65 billion. The challenging global industrial production backdrop has put pressure on company performance. SL Green — Shares of the office tower-focused company fell about 3% after third-quarter revenue fell short of expectations. SL Green reported quarterly revenue based on rental income of $139.6 million, while analysts polled by LSEG had expected $142.5 million. Meanwhile, it lost 21 cents per share, compared with Wall Street forecasts of a loss of 50 cents per share. Equifax — Shares of Equifax fell nearly 5% after the consumer credit reporting company issued weak guidance. Equifax forecast fourth-quarter adjusted earnings of $2.08 to $2.18 a share, while analysts polled by LSEG were looking for $2.20 a share. The revenue outlook for the quarter also missed expectations. Steel Dynamics — Shares of the steelmaker rose 3%. Third-quarter earnings were $2.05 per share, beating analysts’ expectations of $1.97 per share, according to LSEG. Steel Dynamics’ revenue also beat expectations, coming in at $4.34 billion, while Wall Street expected $4.18 billion. —CNBC’s Darla Mercado contributed reporting.