Qorvo's Chinese toll.

• Position: TRIAD REGION

China's slowing economy is proving expensive for shareholders of Qorvo, the Greensboro-based company created this year after the merger of RF Micro Devices and Hillsboro, Ore.-based TriQuint Semiconductor. The company's shares declined 14% on July 30, a day after it missed profit expectations of industry analysts, and in mid-August traded for about 15% less than when the merger took effect in January. Qorvo blamed slowing sales of its wireless infrastructure equipment and soft sales in China.

Most industry analysts view the dip as a blip, with 15 of 17 giving Qorvo a "buy" rating in August. "Qorvo is expected to leverage the core strengths of both the merged companies to rapidly translate research and development advances into large-scale production," Zacks Investment Research noted in a July report. Merger-related cost cuts should save $75 million annually in 2015-16, while spending to develop products expands from $257.5 million last year, according to the company. Qorvo relies on mobile customers for more than 80% of its revenue...