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

Korea on Oct 27: KOSPI 200 +3.17%

From the BlogSK hynix, Kioxia Slide: 3 Reasons Asia's Chip Stocks Fell Together

On Oct 27, 2026 the KOSPI 200 moved +3.17%, weighting each stock by its market value: 124 stocks rose, 70 fell and 7 were unchanged. The largest sector move was Electrical & Electronics, +4.50% across 22 stocks. On Oct 27, 2026 the KOSDAQ 150 moved +2.41%, weighting each stock by its market value: 96 stocks rose, 50 fell and 4 were unchanged. The largest sector move was Batteries, +5.22% across 11 stocks.

Biggest rises, Oct 27

  1. SK Square+7.67%
  2. Samsung E-M+7.42%
  3. BNK Financial Group+7.13%
  4. SK+6.87%
  5. ISU Petasys+6.59%

Biggest falls, Oct 27

  1. Samsung Bio.−5.37%
  2. Asia Holdings−3.55%
  3. LG Uplus−2.78%
  4. HYBE−2.70%
  5. Pan Ocean−2.50%

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 2026-10-27 close.

Method and notes ↓

More to readAll articles →

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Method

Boxes are grouped by KRX industry and sized by market value at the latest close. Moves use KRX regular-session closing prices, adjusted for splits and other share changes. During the KRX session, today’s prices are the latest trades, updated about every 15 minutes; the closing prices replace them after the close. Every period uses today’s index members, so a stock that joined recently is shown as n/a for periods that start before it listed.

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.