--- title: "Micron, Nvidia, AMD on Watch as Asia's Chip Selloff Sends Warning to Wall Street" type: "News" locale: "en" url: "https://longbridge.com/en/news/294074622.md" description: "US semiconductor stocks, including Micron, Nvidia, AMD, and Intel, extended losses in premarket trading following a sharp sell-off in South Korea's Kospi. The decline was triggered by a retail-leverage unwind affecting Samsung and SK Hynix. This downturn raises concerns about the sustainability of the AI-driven 'memory supercycle' narrative as investors scrutinize capital demands and supply chain impacts." datetime: "2026-07-28T13:16:06.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/294074622.md) - [en](https://longbridge.com/en/news/294074622.md) - [zh-HK](https://longbridge.com/zh-HK/news/294074622.md) --- # Micron, Nvidia, AMD on Watch as Asia's Chip Selloff Sends Warning to Wall Street The chip-stock bloodbath that started in Seoul overnight is crossing the Pacific — and Wall Street’s premarket screens are flashing red. - _SNDK stock is red today. See the chart and price action here._ U.S. semiconductor names extended Monday’s steep losses into Tuesday’s premarket session, with **Micron Technology** (NASDAQ:MU) sliding more than 5% and **Advanced Micro Devices Inc.** (NASDAQ:AMD) and **Intel Corp.** (NASDAQ:INTC) each dropping over 4%, according to Benzinga Pro. **Nvidia Corp.** (NASDAQ:NVDA), **SanDisk** (NASDAQ:SNDK) and Intel were also lower in early trading, extending Monday’s rout that saw Nvidia fall roughly 5% and SanDisk plunge over 11%.  The Philadelphia Semiconductor Index, tracked by the **iShares PHLX SOX Semiconductor Sector Index Fund** (NASDAQ:SOXX), shed about 2% in the prior session. **Applied Materials** (NASDAQ:AMAT) is also on trader watchlists Tuesday. The chip-equipment maker has a track record of moving in lockstep with its memory-chip customers this cycle — it slid alongside Micron and Intel during July’s earlier selloffs — making it a bellwether for how far the pain spreads into the semiconductor supply chain today. **Read Also: Nvidia Funds AI Frenzy: Timeline of its Circular Financing Deals … So Far** ## The Kospi Trigger The trigger was a brutal overnight session in South Korea, where the Kospi slumped 10.8% as **Samsung Electronics** and **SK Hynix**  — down 13.4% and 14.7%, respectively — got hit by a wave of retail-leverage unwind.  SK Hynix has now lost 47% of its value since the end of June; Samsung is off 38% over the same stretch, according to Trade Nation’s **David Morrison**.  Adding fuel to the fire: China’s **ChangXin Memory Technologies** (CXMT), fresh off a jaw-dropping 470% IPO debut Monday, is now cooling but remains China’s most valuable listed company — a fresh reminder that Beijing’s chip ambitions are creeping closer to Samsung and SK Hynix’s turf. Nvidia’s own eye-popping ~$500 billion AI-memory supply agreement with **SK Hynix** (NASDAQ:SKHY) — meant to be bullish — is instead being read by some as proof of just how much capital the AI buildout is devouring. Watch the open: if Micron, AMD, Nvidia and Applied Materials can’t stabilize early in the session, expect the “memory supercycle” narrative that’s driven this year’s AI trade to come under further scrutiny. **Read Also: EXCLUSIVE: Webull Just Made 'Smart Money' Bond Strategy Available For $500** _Photo: Shutterstock_ ### Related Stocks - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [INTC.US](https://longbridge.com/en/quote/INTC.US.md) - [NVDA.US](https://longbridge.com/en/quote/NVDA.US.md) - [SKHY.US](https://longbridge.com/en/quote/SKHY.US.md) - [AMD.US](https://longbridge.com/en/quote/AMD.US.md) - [NVDX.US](https://longbridge.com/en/quote/NVDX.US.md) - [MUD.US](https://longbridge.com/en/quote/MUD.US.md) - [MULL.US](https://longbridge.com/en/quote/MULL.US.md) - [INTW.US](https://longbridge.com/en/quote/INTW.US.md) - [AMDD.US](https://longbridge.com/en/quote/AMDD.US.md) - [NVDQ.US](https://longbridge.com/en/quote/NVDQ.US.md) - [AMUU.US](https://longbridge.com/en/quote/AMUU.US.md) - [NVD.US](https://longbridge.com/en/quote/NVD.US.md) - [NVDU.US](https://longbridge.com/en/quote/NVDU.US.md) - [MUU.US](https://longbridge.com/en/quote/MUU.US.md) - [NVDD.US](https://longbridge.com/en/quote/NVDD.US.md) - [NVDS.US](https://longbridge.com/en/quote/NVDS.US.md) - [NVDY.US](https://longbridge.com/en/quote/NVDY.US.md) - [AMDL.US](https://longbridge.com/en/quote/AMDL.US.md) - [04335.HK](https://longbridge.com/en/quote/04335.HK.md) - [07788.HK](https://longbridge.com/en/quote/07788.HK.md) - [07388.HK](https://longbridge.com/en/quote/07388.HK.md) - [EWY.US](https://longbridge.com/en/quote/EWY.US.md) - [MUYY.US](https://longbridge.com/en/quote/MUYY.US.md) - [MUZ.US](https://longbridge.com/en/quote/MUZ.US.md) - [LINT.US](https://longbridge.com/en/quote/LINT.US.md) - [INYY.US](https://longbridge.com/en/quote/INYY.US.md) - [NVDB.US](https://longbridge.com/en/quote/NVDB.US.md) - [NVDG.US](https://longbridge.com/en/quote/NVDG.US.md) - [NVDL.US](https://longbridge.com/en/quote/NVDL.US.md) - [NVDO.US](https://longbridge.com/en/quote/NVDO.US.md) - [NVDW.US](https://longbridge.com/en/quote/NVDW.US.md) - [NVYY.US](https://longbridge.com/en/quote/NVYY.US.md) - [NYYY.US](https://longbridge.com/en/quote/NYYY.US.md) - [DIPS.US](https://longbridge.com/en/quote/DIPS.US.md) - [MAGX.US](https://longbridge.com/en/quote/MAGX.US.md) - [AMDG.US](https://longbridge.com/en/quote/AMDG.US.md) - [DAMD.US](https://longbridge.com/en/quote/DAMD.US.md) - [AMDY.US](https://longbridge.com/en/quote/AMDY.US.md) - [AMDW.US](https://longbridge.com/en/quote/AMDW.US.md) - [SMH.US](https://longbridge.com/en/quote/SMH.US.md) - [SOXX.US](https://longbridge.com/en/quote/SOXX.US.md) - [SOXL.US](https://longbridge.com/en/quote/SOXL.US.md) - [SOXQ.US](https://longbridge.com/en/quote/SOXQ.US.md) - [XSD.US](https://longbridge.com/en/quote/XSD.US.md) - [PSI.US](https://longbridge.com/en/quote/PSI.US.md) - [FTXL.US](https://longbridge.com/en/quote/FTXL.US.md) - [03121.HK](https://longbridge.com/en/quote/03121.HK.md) - [09388.HK](https://longbridge.com/en/quote/09388.HK.md) - [SNDK.US](https://longbridge.com/en/quote/SNDK.US.md) - [AMAT.US](https://longbridge.com/en/quote/AMAT.US.md) - [SSNGY.US](https://longbridge.com/en/quote/SSNGY.US.md) - [NVD.DE](https://longbridge.com/en/quote/NVD.DE.md) - [SMSN.UK](https://longbridge.com/en/quote/SMSN.UK.md) ## Related News & Research - [OpenAI boosts AI chip dreams with AI patents from Altman-backed startup](https://longbridge.com/en/news/295148688.md) - [Firmus nearly doubles valuation to over $10.5 billion in 4 months with Nvidia-backed fundraise](https://longbridge.com/en/news/295169706.md) - [Nvidia is quietly staffing a new AI safety team as it doubles down on open models](https://longbridge.com/en/news/295080576.md) - [AMD's AI-powered revenue forecast fails to wow investors](https://longbridge.com/en/news/294886015.md) - [Micron or SK hynix: One AI Chip Stock Is a Bargain, the Other Too Expensive](https://longbridge.com/en/news/295285687.md)