SK Hynix earnings coincide with a 6.63% KOSPI surge

A market commentary describes a 6.63% jump that took the KOSPI back above 6,000 as SK Hynix delivered what it calls a blowout quarter. It asks whether earnings, buybacks and foreign inflows can sustain the rebound. Separately, a market observer says the US Semiconductor Index fell more than 21% over the period in which its ratio to the S&P 500 dropped 26% from a June peak.