SK Hynix completed a Nasdaq listing of American Depositary Receipts on Friday, raising more than $26 billion at $149 per ADR that opened at $170 and closed up 12.8 percent. On the following Monday, reports differed on the size of any decline in Seoul trading while the broader KOSPI fell 2.8 percent. SK Hynix holds 58 percent of the high-bandwidth memory market, ahead of Samsung and Micron at 21 percent each.