Market

On October 16, 2026, market-reference ETFs declined, with QQQ down 2.50%, SPY down 1.11%, and DIA down 0.38%. Decliners outnumbered advancers across the NYSE, NYSE American, and Nasdaq-listed stocks. Micron Technology and Nvidia ranked among the highest-turnover selected companies, while CoreWeave, Palantir Technologies, and Strategy recorded notable price and volume moves.

The KOSPI finished trading at 5,668.05, up 2.05%. Advancers outnumbered decliners on both the KOSPI and KOSDAQ, while Samsung Electronics and SK hynix ranked among the leaders in trading value.

On October 15, market-reference ETFs were mixed: the Dow-tracking DIA rose 1.08%, the S&P 500-tracking SPY gained 0.28%, and the Nasdaq-100-tracking QQQ slipped 0.13%. Advancers outnumbered decliners across the NYSE, Nasdaq-listed stocks, and NYSE American. Micron led the selected high-turnover companies, while CoreWeave posted the largest selected daily gain and Dell recorded the sharpest decline.

The KOSPI plunged, closing at 5,554.22, down 7.57% from the previous day. Decliners greatly outnumbered advancers on both the KOSPI and KOSDAQ, while Samsung Electronics and SK hynix each recorded trading value in the 12 trillion won range.

October 14 trading featured declines across major market-reference ETFs and broadly negative exchange breadth. SPY fell 1.08%, QQQ dropped 1.97%, and DIA slipped 0.11%. Nvidia and Micron led individual-company turnover, while CoreWeave, Oracle, and Dell recorded notable declines with elevated volume relative to their 20-day averages.

The KOSPI closed at 6,008.81, down 0.44% from the previous trading day. On the KOSPI, advancing stocks outnumbered declining stocks, and trading value was approximately 29.8 trillion won. HMM and Samsung SDI rose more than 5%, while advancing stocks also prevailed on the KOSDAQ.

On October 13, 2026, the S&P 500-tracking SPY, Nasdaq-100-tracking QQQ and Dow-tracking DIA all declined. Breadth was mixed across exchanges, with Nasdaq-listed stocks showing more decliners than advancers. Micron and Nvidia ranked among the highest-turnover selected market leaders, while Applied Materials, Meta Platforms and Johnson & Johnson were highlighted as issue stocks.

The KOSPI closed at 6,035.35, down 5.46% from the previous trading day. Declining stocks outnumbered advancing stocks in both the KOSPI and KOSDAQ, while SK hynix and Samsung Electronics recorded declines in the 9% and 6% ranges, respectively.

Market-reference ETFs were mixed on October 12, with the Nasdaq-100-tracking QQQ down 0.70%, the S&P 500-tracking SPY down 0.06%, and the Dow-tracking DIA up 0.35%. Decliners outnumbered advancers on the New York Stock Exchange, American Stock Exchange, and Nasdaq-listed stocks.

The KOSPI closed at 6,384.24, down 3.65% from the previous trading day. With decliners outnumbering advancers on both the KOSPI and KOSDAQ, Kumho Engineering & Construction rose 24.75%, while LG Innotek fell 15.38%.

On October 9, 2026, market-reference ETFs rose, while advancing stocks outnumbered decliners on the NYSE, Nasdaq-listed stocks, and AMEX. Micron Technology and NVIDIA ranked among the highest-turnover selected companies, while Palantir, Snowflake, and Amazon posted notable gains.

On October 8, market-reference ETFs were mixed: SPY, an S&P 500-tracking ETF, fell 0.42%, QQQ, a Nasdaq-100-tracking ETF, fell 1.34%, and DIA, a Dow-tracking ETF, gained 0.12%. Exchange breadth was positive on the NYSE but negative on Nasdaq and NYSE American. Micron and Nvidia posted the highest turnover among the selected market leaders, while Medtronic and Palantir advanced and Sandisk declined among the selected issue stocks.

The KOSPI closed at 6,625.93, down 2.62% from the previous trading day, with decliners outnumbering advancers. Decliners also outnumbered advancers on the KOSDAQ, but Jusung Engineering and Doosan Tesna rose, while LG Energy Solution gained 4.40%.

On October 7, 2026, market-reference ETFs declined and decliners outnumbered advancers across the NYSE, American Stock Exchange and Nasdaq. Micron Technology gained 4.06% with USD 33.58 billion in turnover, while Strategy fell 6.79%.

The KOSPI fell 1.98% from the previous trading day to 6,803.90, with decliners outnumbering advancers. On the KOSDAQ, decliners also outnumbered advancers; RaonSecure rose 9.95%, while Peptron fell 25.15%.

On October 6, market-reference ETFs finished higher: SPY gained 0.55%, QQQ rose 0.46%, and DIA advanced 0.48%. Breadth was positive on the NYSE and NYSE American, while Nasdaq-listed breadth was nearly balanced. Semiconductor and technology names dominated the selected high-turnover and unusual-movement stocks.

The KOSPI closed at 6,941.39, down 0.89% from the previous trading day, but the number of advancing stocks exceeded the number of declining stocks. Advancing stocks also prevailed on the KOSDAQ, with notable gains in some stocks, including Jusung Engineering and HLB.

On October 5, market-reference ETFs advanced: SPY rose 0.67%, QQQ gained 0.88%, and DIA increased 0.20%. Breadth was mixed across exchanges, with gains on Nasdaq-listed and NYSE American stocks but slightly more decliners than advancers on the NYSE. NVIDIA and SpaceX were the market leaders by turnover, while PTC, Twilio, and Western Digital recorded notable price and volume activity.

On October 2, 2026, the SPDR S&P 500 ETF Trust (SPY) rose 0.74%, the Invesco QQQ Trust (QQQ) gained 1.02%, and the SPDR Dow Jones Industrial Average ETF Trust (DIA) added 0.49%. Advancers outnumbered decliners on the NYSE, NYSE American, and Nasdaq-listed stocks.

KOSPI closed at 7,003.74, up 0.46% from the previous trading day. With gainers outnumbering decliners in both KOSPI and KOSDAQ, KOSDAQ-listed stocks including Jeju Semiconductor, Sungho Electronics, and SIMMTECH posted notable gains.