Stocks making the biggest moves after hours: Yum China, Western Digital, ZoomInfo and more

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Check out the companies making headlines in extended trading.

Yum China — The restaurant franchiser's shares fell 3.4% following its mixed second-quarter results. The company announced 47 cents in adjusted earnings per share on $2.65 billion in revenue. Analysts polled by Refinitiv had expected 46 cents earnings per share on $2.68 billion in revenue. Management noted that same-store sales across its restaurants still remained below pre-pandemic levels. 

ZoomInfo Technologies – Shares shed 17% in extended trading after the company posted a weak outlook for third-quarter revenue. The data company anticipates $309 million to $312 million in revenue, while analysts called for $326 million, according to Refinitiv. ZoomInfo's revenue in the latest quarter also missed expectations, coming in at $309 million, while analysts estimated $311 million.

Western Digital — The data storage company's stock gained 2% after a better-than-expected fiscal fourth quarter earnings report. Western Digital posted a loss of $1.98 per share on $2.67 billion in revenue. Analysts had estimated a loss of $2.01 per share on $2.53 billion in revenue, according to Refinitiv. 

Arista Networks — Shares rose more than 11% after the company's quarterly earnings topped analysts' expectations. Arista reported adjusted earnings of $1.58 per share, versus consensus analyst estimates of $1.44 per share, according to Refinitiv. Revenue also came in higher than expected at $1.46 billion, compared to analyst expectations of $1.38 billion. 

Lattice Semiconductor — The stock declined 2.6% after management noted that the company «is not immune to macroeconomic challenges» impacting the chip sector. Lattice reported second-quarter earnings of 52 cents