SK hynix Inc. (NASDAQ:SKHY) just posted the most profitable quarter in its history. The stock is having its worst month in 24 years.

July’s decline stands at 47%, the steepest since June 2002.

Second-quarter operating profit hit 60.54 trillion won ($41.9 billion) on a 76% margin, more than the company earned in all of 2025.

It still missed analyst estimates.

The iShares MSCI South Korea ETF (NYSE:EWY) closed Tuesday 31% below its 52-week high.

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