US memory chip stocks edge up in pre-market trading, Micron Technology rises 1.6%

According to MSX.COM data, US memory chip stocks edged up in pre-market trading. Micron Technology (MU.O) rose 1.6%, SK Hynix (SKHY.O) gained 1.36%, SanDisk (SNDK.O) climbed 1.13%, while Seagate Technology (STX.O) and Western Digital (WDC.O) both rose 1.14%.