[2026-07-31] KOSPI & KOSDAQ Market Close | KOSPI Explodes +16.97% on Semiconductor Limit-Up Rally

📊 Today's Market at a Glance

On Friday, July 31, 2026, Korean equities staged a historic explosive rally, recovering most of a three-day plunge in a single session. The KOSPI surged +16.97%, gaining nearly 950 points, as semiconductor heavyweights raced to their limit-up (daily +30% ceiling) and led the market higher.

IndexOpenHighLowCloseChangeVolume
KOSPI5,657.796,548.645,629.766,542.82+16.97%33,797.5만
KOSDAQ666.47716.46663.25716.37+11.10%36,864.8만
ItemClose
USD/KRW Exchange Rate1,442.28

📈 KOSPI Analysis

The KOSPI closed at 6,542.82, up +16.97% and roughly 949 points higher than the prior session. It opened at 5,657.79, climbed to an intraday high of 6,548.64, and finished near that high, reflecting overwhelming buying pressure into the close.

A technical rebound after three consecutive days of steep losses combined with an overnight rally in U.S. chip stocks (NASDAQ +2.78%) to act as the trigger. Buying was so explosive that buy-side sidecars were activated early in the session. Trading volume also jumped to about 337.97 million shares, underscoring the extreme volatility regime.

Investors should note, however, that even after this surge the KOSPI's monthly decline for July still stands at -22.1% — the third-largest on record — meaning the broader picture remains one of recovering from a sharp sell-off rather than a fresh uptrend.

📉 KOSDAQ Analysis

The KOSDAQ closed at 716.37, rising +11.10%. It opened at 666.47, advanced to 716.46 intraday, and settled near its high, moving in tandem with the KOSPI.

Buying concentrated in small- and mid-cap semiconductor materials and equipment names, sending Tes, Jeju Semiconductor, Techwing, Simmtech, TSE, MK Electron and Samyoung S&C straight to their limit-up. The KOSDAQ also triggered buy-side sidecars amid clearly speculative demand, but its gain lagged the KOSPI (+16.97%), suggesting the concentration in large-cap chip leaders was relatively stronger.

🔥 Key Themes & Sectors

Today's advance was characterized by buying that spread across the entire semiconductor value chain.

SectorChange
Semiconductors & Semiconductor Equipment+28.03%
Electronic Equipment & Instruments+26.79%
Electrical Equipment+21.18%
Industrial Conglomerates+16.75%
Life Insurance+16.69%
Communications Equipment+15.13%
  • Semiconductors (memory, materials, equipment): Led by surges in heavyweights SK Hynix and Samsung Electronics, the Semiconductors & Equipment sector jumped +28.03% to drive the market. On the KOSDAQ, materials and equipment names hit the limit-up en masse.
  • Semiconductor leveraged ETFs/ETNs: TIGER 200 IT Leverage, KODEX Semiconductor Leverage and SK Hynix single-stock leverage products all locked limit-up. Notably, from today a rule took effect raising the base deposit for single-stock leveraged ETFs from KRW 10 million to KRW 30 million — an institutional check against speculative overheating.
  • Electronic & electrical equipment (chip-linked): Electronic Equipment & Instruments +26.79%, Electrical Equipment +21.18% and Communications Equipment +15.13% rose together.
  • Inverse 2X (semiconductors/indices): SOL SK Hynix Inverse 2X fell to its limit-down, and inverse products broadly plunged, mirroring the index surge.

💰 Foreign & Institutional Flow

Detailed net-buying data by investor type (foreign, institutional, retail) was not compiled in this dataset. However, prior-session coverage cited a return of foreign buying, and the simultaneous activation of buy-side sidecars on both markets points to broad-based inflows. Taken together, the move likely reflects a combination of foreign and institutional bargain-hunting focused on semiconductors and a technical rebound. The precise flow direction should be confirmed against finalized figures.

🌍 Global Factors

Overnight, U.S. equities rose across all three major indices on a rebound in chip stocks, providing the catalyst for the sharp recovery in Korean semiconductors.

IndexCloseChange
S&P 5007,437.63+1.66%
NASDAQ25,122.18+2.78%
Dow Jones52,208.06+1.19%

The won/dollar rate held at an elevated 1,442.28, keeping won-weakness pressure in place — though this can be favorable for semiconductor exporters. Bitcoin traded around USD 64,725. The Bank of Japan's monetary policy decision (policy rate expected held at <1.00%) and related Asian events also formed a backdrop for the recovery in risk appetite.

🏆 Notable Stocks

  • Tes: A leading KOSDAQ semiconductor equipment name, closed limit-up at KRW 130,000, spearheading the materials and equipment surge.
  • Jeju Semiconductor: A memory chip fabless firm, closed limit-up, up KRW 15,000 to KRW 65,100, emerging as a face of the small/mid-cap chip rally.
  • TSE: A semiconductor test equipment maker, closed limit-up at KRW 186,600 — a straight limit-up even among high-priced stocks.
  • Simmtech: A semiconductor substrate (PCB) name, closed limit-up at KRW 82,900 on packaging-materials demand expectations.
  • Techwing: A semiconductor test-handler equipment maker, closed limit-up at KRW 41,450 on HBM-related optimism.

📋 Special Stock Status

  • Limit-up stocks: Numerous semiconductor materials and equipment names including Tes, Jeju Semiconductor, Techwing, Simmtech, TSE, MK Electron, Samyoung S&C, Taesung and Bonne. (On the KOSPI, leveraged ETFs/ETNs such as TIGER 200 IT Leverage and KODEX Semiconductor Leverage also locked limit-up.)
  • Limit-down stocks: SOL SK Hynix Futures Single-Stock Inverse 2X (inverse products slumped on the index surge).
  • Trading halt: About 20 names, including Dreamus Company, Daejin Advanced Materials, Hanwha, Hanwha 3B(P), Korea Capital, SI Resources, TN Entertainment, Nice Information Service, Woori E&L, Komico, Hanul&Jeju, Laon People, Daishin Information & Communication, Korea Paper, NP, Hanwha Plus No.5 SPAC, Paratech, KS Industries, Vessel and Dexter.
  • Audit report delay: None.

📅 Today's Economic Events Results

Global (High impact only)

Time (KST)CountryEventForecast / PreviousActual
12:11JapanBOJ Outlook Report- / -TBD
12:11JapanBOJ Policy Rate<1.00% / <1.00%TBD
12:11JapanMonetary Policy Statement- / -TBD
15:30JapanBOJ Press Conference- / -TBD
21:30CanadaGDP m/m0.2% / 0.5%TBD

Domestic

No major DART disclosures were compiled for today. Among related news, Bank of Korea monetary-policy and FX issues (coverage related to Governor Shin Hyun-song) were cited as market backdrop.

🔮 Next Session Outlook

On the next trading day (Monday, Aug 3), the market is likely to see high volatility caught between profit-taking after today's surge and the continuation of the rebound. The direction of U.S. chip stocks and the won/dollar rate (in the 1,440s) are the key variables. Because today's spike was largely a technical rebound from a three-day plunge, whether semiconductor leaders can extend gains early on Monday will be decisive for a genuine trend reversal. Watch how the small/mid-cap chip materials and equipment names behave after their limit-up moves (consolidation-then-resume vs. surge-then-retrace).

⚠️ Investment Disclaimer

  • Even after today's surge, July's monthly decline of -22.1% (third-largest on record) means the broader trend remains one of recovering from a steep sell-off.
  • Tighter rules — such as the higher base deposit for single-stock leveraged ETFs (KRW 10M → 30M) — could weaken leveraged buying momentum.
  • The elevated won/dollar rate of 1,442 poses FX-loss pressure for foreign investors and a risk of capital outflows.
  • Individual-stock credit and liquidity issues, including trading halts on roughly 20 names.
  • Risk of a sharp pullback if the single-theme concentration in semiconductors is not accompanied by sector rotation.

Disclaimer: This post is for informational purposes only and does not constitute investment advice. All investment decisions are the sole responsibility of the investor. Past performance does not guarantee future results.

🇰🇷 Korean Version: https://kai-search.tistory.com/manage/posts/

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