KOSPI -5.12% Plunge, KOSDAQ +2.44% Divergence Widens

TL;DR

• 2026-08-03 final close: KOSPI 6,257.45(-5.12%), KOSDAQ 737.35(+2.44%). Style and sector flows diverged sharply across the market.
• Overnight U.S. headlines featured AI, tech, and crypto news. Fed odds (25bp hike after September 'Yes' 55%) and semiconductor and Apple issues are early volatility drivers for the Korean session.

What happened

Korea showed a stark divergence between indices yesterday. KOSPI fell sharply, closing -5.12%, while KOSDAQ rose +2.44%. Overnight coverage highlighted AI names such as Palantir and Nvidia, Apple strategy, and Ethereum and Bitcoin ETF news. Reports also noted mixed moves within semiconductors, between HBM and equipment stocks versus memory names.

By the numbers

• Domestic: KOSPI 6,257.45(-5.12%), KOSDAQ 737.35(+2.44%) [collected 2026-08-04 08:20 KST, figures are 2026-08-03 final closes]
• U.S. sectors (most recent trading day): Consumer Discretionary +6.11%, Communication +1.83%, Financials +1.12%, Materials, Real Estate, Utilities negative
• Domestic sectors (most recent trading day): Healthcare +2.00%, Industrials +0.84%, IT & Semiconductors -0.59%, Materials -0.79%, Utilities -3.03%
• Pollimarket: Fed 25bp hike after September 'Yes' bet 55%

In short, U.S. AI and tech tailwinds lifted selective sectors while selling pressure on Korean large caps pressured the KOSPI, and KOSDAQ, healthcare, and industrials showed relative strength.

PickStock checkpoints

• Foreign and institutional flows: Check whether foreigners and institutions buy or sell KOSPI large caps right after the open, focusing on any further weakness among large-cap anchors.
• Reaction to U.S. and financial events: Monitor how Apple, Nvidia, and Ethereum headlines translate into Korean market moves, especially gaps and volume in semiconductor and AI hardware names.
• Sector differentiation: Track KOSDAQ strength and the relative power of domestic healthcare and industrials to map money rotation, and watch for continued weakness in IT, semiconductors, and materials.
• Rate expectations (Fed bets): The Pollimarket 55% bet for a 25bp hike after September is a sentiment variable that can widen intraday volatility if news shifts.
• Crypto ETF impact: Observe how Ethereum and Bitcoin ETF coverage propagates to tech and crypto-linked stocks.

The trading day began from index divergence, so early flows and news reactions will likely determine the near-term trend. Confirm money direction with real-time prints and volume immediately after the open. Live news

This article is for information only and is not investment advice.