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SK Hynix falls 10% in Seoul as chipmaker sell-off extends to South Korea

South Korean chipmaker SK Hynix fell 10% in Seoul on Tuesday, pulling broader semiconductor shares in the region lower with it. The session extended a rout already underway in the chip sector after Wall Street turned in…

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NewsMV Markets Desk
3 min read
28 July 2026Markets desk
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South Korean chipmaker SK Hynix fell 10% in Seoul on Tuesday, pulling broader semiconductor shares in the region lower with it. The session extended a rout already underway in the chip sector after Wall Street turned in another weak performance. The sell-off deepened across two trading sessions on opposite sides of the Pacific.

Sector-wide pressure in Seoul

The headline number was 10% for SK Hynix, but the session's broader character matters as much as the single name. South Korean semiconductor shares tumbled across the board on Tuesday, widening the scope of a sell-off that had been building in chip stocks.

A sector-wide move reads differently than a company-specific decline. When pressure spreads across an entire sector, it reflects conditions in the market rather than any one name's story. Tuesday's session in Seoul was the former.

Wall Street's role in the setup

Another weak session on Wall Street preceded Tuesday's decline in Seoul. South Korean chip stocks extended a rout that had already taken hold in the United States. The two markets moved in the same direction, with weakness arriving first in U.S. trading before carrying through to the South Korean session.

SK Hynix absorbed a 10% decline. The broader South Korean semiconductor sector moved alongside it.

What to watch

The immediate question for the chip tape is what Wall Street's next session delivers. South Korean semiconductor shares tracked U.S. weakness into Tuesday's close. The rout is now on the tape for both markets, and the direction of U.S. chip names in the sessions ahead will be the clearest signal of whether the sell-off continues or stabilizes.

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Filed via cnbc.com

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Key takeaways

Frequently asked

How much did SK Hynix fall and where?

SK Hynix fell 10% in Seoul trading on Tuesday.

Was this decline specific to SK Hynix?

No, South Korean semiconductor shares tumbled across the board, making it a sector-wide sell-off that reflects broader market conditions rather than one company's story.

What triggered the sell-off in Seoul?

The Seoul decline extended a chip-sector rout that had already taken hold in the United States after another weak session on Wall Street.

Which market moved first?

Weakness arrived first in U.S. trading before carrying through to the South Korean session, with the two markets moving in the same direction.

What should investors watch next?

The direction of U.S. chip names in the sessions ahead will be the clearest signal of whether the sell-off continues or stabilizes.