# Micron and Sandisk Rise About 4% Each in U.S. Premarket Trading By Enna Lee Canonical URL: https://www.tokenpost.com/news/investing/34746 Published: 2026-10-19T11:51:42.000Z Updated: 2026-10-19T11:51:42.000Z Section: Investing > CXMT fell 7.77% in Shanghai, a deeper decline than an earlier 6.5% reading. Micron Technology and Sandisk rose about 4% each in U.S. premarket trading Monday, Oct. 19, after last week’s selloff, while Chinese memory-chip maker ChangXin Memory Technologies fell in Shanghai. ChangXin Memory Technologies (CXMT) was down 7.77%, a later reading than the 6.5% decline covered alongside [its preliminary nine-month profit forecast](). The forecast covers January through September 2026 and is unaudited. CXMT competes with Micron in DRAM memory. Sandisk makes NAND flash storage, a different memory product. The U.S. gains were premarket moves, before the regular trading session opened. ## Links in this article - [its preliminary nine-month profit forecast](https://www.tokenpost.com/news/investing/34561)