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Construction workers build a Toll Brothers home in Boca Raton, Florida.

Check out the companies making headlines in extended trading.

Palo Alto Networks — Shares gained 3.5% after the company's fiscal third-quarter earnings and revenue topped estimates. The cybersecurity company posted adjusted earnings of $1.10 per share and revenue of $1.72 billion. Analysts polled by Refinitiv had estimated earnings of 93 cents per share and $1.71 billion in revenue. The company's earnings guidance for the fiscal fourth quarter also surpassed expectations. 

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