Pacific Tape Asia-Pacific chip stocks, explained for investors overseas
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Chips +1.36% Memory +0.06% Samsung Elec. −1.16%SK hynix −0.16%TSMC(Oct 22) −1.45%Kioxia −1.61%Micron +2.98%Nvidia +2.39%Broadcom +2.33% USD/KRW 1,323.1 −0.11%USD/JPY 156.9 +0.25%USD/TWD 32.58 −0.09%

Market Map

Chip stocks on Oct 26: +1.36%

From the BlogNAND Outlook Up, Shares Down: Sandisk and Kioxia Report October 29-30

41 chip stocks from Korea, Taiwan, Japan and the United States, picked by rule. The pool is the union of the constituents of global and regional semiconductor indexes as of October 2026. From it we drop China and Hong Kong listings, companies whose main business is not chips, and anything below US$10 billion in market value (US$50 billion for US stocks, so the largest US names sit beside the Asian ones without crowding them out). Boxes are grouped by role in the supply chain or by country, and sized by market value in US dollars. The list is reviewed when the indexes change.

Biggest rises, Oct 26

  1. Texas Instruments+4.72%
  2. NXP+4.64%
  3. Analog Devices+4.31%
  4. Intel+4.04%
  5. Lam Research+3.22%

Biggest falls, Oct 26

  1. King Yuan Electronics (KYEC)−5.58%
  2. Global Unichip (GUC)−5.19%
  3. Nanya Technology−5.15%
  4. ASE Technology−4.39%
  5. SCREEN Holdings−4.34%

How to read this map

Size
Market value at each market’s latest close, or at the latest update while that market is open. On the semiconductor maps you can also size boxes by the square root of market value, or compare only within a group.
Color
The move over the period you pick: green up, red down, gray flat. Every number carries + or −.
Updates
About every 15 minutes while a market is open (Japan and Taiwan 20 minutes delayed); each market keeps its closing prices after it closes.
Data
KRX closing-auction prices (adjusted) and Korea Exchange statistics (한국거래소 통계정보) via KRX Open API (earlier closes); Taiwan Stock Exchange (TWSE OpenAPI); Tokyo Stock Exchange closing prices; US regular-session closes (S&P 500, Nasdaq-100, Dow Jones Industrial Average and PHLX Semiconductor Sector Index members, GICS sectors, shares outstanding from SEC filings); FX: Bank of Korea ECOS. Summary above as of 2026-10-26 close.

Method and notes ↓

More to readAll articles →

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Method

Boxes are grouped by role in the chip supply chain (or by country) and sized by market value in US dollars at each market’s latest close. Moves use each market’s regular-session closing prices, adjusted for splits; a 20-day move counts 20 sessions of that market, so the dates differ a little between countries. While a market is open its boxes show the latest trades (Japan and Taiwan 20 minutes delayed), updated about every 15 minutes; a closed market keeps its closing prices. Members are picked by rule from the constituents of global and regional semiconductor indexes: China and Hong Kong listings and non-chip businesses are left out, and a market value of at least US$10bn (US$50bn for US stocks) is needed on the Chips map.

The size-weighted move weights each stock by its market value at the start of the period, so it is the return of holding every box on the map in proportion to its size.

A map shows what moved, not why. Nothing here is a recommendation to buy or sell.

Market map notes

All Market Map articles →

Pictures first, short explanations after. Nothing here is a recommendation to buy or sell.