On August 4, SK hynix rose 3.17% overnight, trading at $146.85/share, with turnover of $6.97 million. The rebound follows two key positive catalysts that offset the prior session's decline.

On the news front, SK hynix and SanDisk jointly published the first HBF (High Bandwidth Flash) technology specification, advancing the Open Compute Project's global standardization efforts and marking a milestone for industry-wide norms in high-bandwidth flash memory. Additionally, Moody's upgraded SK hynix's credit rating to A3 with a stable outlook, reflecting further international recognition of the company's strengthening credit profile.

The overnight recovery comes after SK hynix fell over 3.75% in the prior regular session, pressured by UBS cutting its target price from KRW 3.2 million to KRW 3.0 million and a sharp sell-off in Korean equities that dragged the broader memory sector lower. UBS noted that while the company's accelerated long-term supply agreement signings may cap near-term average selling price upside, they are favorable for long-term margins and returns.

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