https://www.cnbc.com/2018/07/03/micron-shares-tumble-after-rival-says-a-chinese-court-banned-chip-sale.html

Micron shares fell as much as 8 percent during regular trading on Tuesday after Taiwanese rival United Microelectronic Corporation (UMC) released a statement claiming a Chinese court had temporarily banned sales of Micron chips in China.

Micron closed down 5.5 percent on the day.