TLDR
- SK Hynix surged more than 7% on Monday, hitting a record high
- The rally was sparked by strong earnings signals from Intel (INTC)
- Intel’s results reignited expectations of strong AI semiconductor demand
- SK Hynix outperformed rival Samsung Electronics (005930.KS), which rose 2.5%
- Samsung’s gains were held back by concerns over a potential worker strike in May
SK Hynix jumped more than 7% on Monday, reaching a record high as chipmakers got a lift from Intel’s latest earnings results.

Intel’s numbers came in strong enough to renew investor confidence in AI-driven chip demand. That optimism rippled through the semiconductor sector, with SK Hynix — one of Nvidia’s key memory chip suppliers — among the biggest winners of the session.
The move pushed the South Korean firm to an all-time high, a milestone that reflects how closely tied it has become to the AI supply chain.
Samsung Electronics also gained ground, rising around 2.5% during the same session. But that gain came with a cloud hanging over it.
The company is facing the prospect of a strike by unionized workers in South Korea next month. That uncertainty kept a lid on Samsung’s rally and widened the gap between the two rivals on the day.
For SK Hynix, the session was a clean run. No such headwinds weighed on its stock.
Intel’s Earnings Spark the Move
Intel’s results were the catalyst. While Intel itself surged around 23% following its report, the broader read-through for AI chip demand was what moved companies like SK Hynix.
Memory chips are a critical part of AI infrastructure. As demand for AI accelerators grows, so does the need for the high-bandwidth memory that SK Hynix produces. Investors responded accordingly.
The earnings beat from Intel gave the market a reason to believe AI hardware spending remains on track — and SK Hynix sits squarely in that spending path.
SK Hynix vs. Samsung
The 7%-plus gain for SK Hynix versus Samsung’s 2.5% rise tells a story on its own. Both companies operate in the same space, but SK Hynix has positioned itself more tightly within the AI chip ecosystem through its Nvidia relationship.
Samsung, despite its scale, carried extra baggage into Monday’s session. The potential May strike adds a layer of operational risk that investors are pricing in, even if the outcome remains uncertain.
SK Hynix has no such distraction right now, and Monday’s session showed the difference that can make.
The stock’s record high comes as global demand for advanced memory chips continues to climb. SK Hynix’s session gain of over 7% was one of the standout moves across Asian markets on Monday.
Intel’s stock surged approximately 23.7% following its earnings report, which served as the trigger for the broader chip sector rally.
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