Meta Platforms (META.O) fell about 9% to a four-month low after reporting a sharp decline in Q2 cash flow.

Arm (ARM.O) extended losses in after-hours trading, down 8%.

Naxin Microelectronics launched the NSM350x series, billed as China’s first Hall-effect dual-code-track Vernier magnetic encoder chip, enabling high-precision single-turn absolute angle detection. The release makes Naxin the first domestic chipmaker to offer dual-code-track Vernier encoder products using both magnetic sensing and eddy-current sensing, expanding its high-precision angle-detection product lineup.