MARKET CLOSE
Market Close Briefings
Completed-session data and reported market context for Korea and the United States.
On 2026-10-19, the KOSPI and KOSDAQ each ended the regular session with gains of more than 1%. Hyundai Motor rose substantially more than the indices, while SK Square closed unchanged, diverging from the broader market trend.
🇺🇸UNITED STATESMeta Surges 11.34% as Nasdaq Closes Up 2.26%In the September 21, 2026 U.S. regular session, the Nasdaq Composite rose 2.26% and the S&P 500 gained 1.49%. Meta surged 11.34%, while SanDisk declined 1.41%.
Briefing archive
- Korea
KOSPI Rebounds 1.76%, Hyundai Motor Closes Up 3.69%
On 2026-10-19, the KOSPI and KOSDAQ each ended the regular session with gains of more than 1%. Hyundai Motor rose substantially more than the indices, while SK Square closed unchanged, diverging from the broader market trend.
- Korea
KOSPI Closes at 7,017.91… Semiconductor Stocks Diverge
In South Korea’s regular session on September 22, 2026, the KOSPI rose 0.15% while the KOSDAQ fell 0.23%. Samsung Electronics rose, but SK hynix fell, resulting in divergent closing moves among the tracked semiconductor stocks.
- United States
Meta Surges 11.34% as Nasdaq Closes Up 2.26%
In the September 21, 2026 U.S. regular session, the Nasdaq Composite rose 2.26% and the S&P 500 gained 1.49%. Meta surged 11.34%, while SanDisk declined 1.41%.
- Korea
KOSPI Tops 7,007.72; Samsung Electronics and SK Square Rally
In Korea’s regular session on September 21, 2026, the KOSPI rose to close at 7,007.72 points and the KOSDAQ at 836.27 points. Samsung Electronics and SK Square outpaced the index, while Hyundai Motor declined.
- United States
Dow, Nasdaq Rise About 1%; SanDisk Falls 3.50%
All four major indexes closed higher in the U.S. regular session on September 11, 2026. Large-cap technology stocks generally rose, while SanDisk, Micron, and Nvidia moved differently from the broader market.
- Korea
KOSPI 6,909.91 and KOSDAQ 820.64 Both Decline
In South Korea’s regular session on September 11, 2026, the KOSPI and KOSDAQ fell 1.76% and 1.95%, respectively. Among the tracked stocks, SK Square and Samsung Electronics posted larger declines than the indices.
- United States
Small Caps and Semiconductors Weaken Despite Apple +3.56% Divergence
All four major indexes fell in the September 10, 2026 U.S. regular session, with the Russell 2000 posting the largest decline. Apple and Alphabet rose, while Micron and SanDisk declined sharply.
- Korea
KOSPI Falls to 7,033.92, KOSDAQ Rebounds to 836.92
In South Korea’s regular session on September 10, 2026, the KOSPI fell 0.25% while the KOSDAQ rose 0.79%. Hyundai Motor was the only tracked stock to close higher.
- United States
Four Major Indexes Fall Together Even as Meta Rises 6.55%
All four major indexes declined in the September 9, 2026 U.S. regular session, with the Russell 2000 posting the largest drop. Meta and Micron rose, moving against the broader index trend.
- Korea
KOSPI 7,051.64 and KOSDAQ 830.37 Both Close Higher
In Korea’s regular session on September 9, 2026, the KOSPI rose 1.40% and the KOSDAQ gained 2.28%. SK hynix climbed 3.51%, while Samsung Electronics closed unchanged.
- United States
Tesla +3.98% Moves Against Trend as Dow -1.18%
In the September 8, 2026 U.S. regular session, the Dow fell 1.18% while Tesla rose 3.98%. Index and tracked-stock closing data are presented separately from moves in yields and oil prices.
- Korea
KOSPI Closes at 6,954.52…Some Semiconductor Tracking Stocks Rise
On September 8, 2026, both the KOSPI and KOSDAQ closed lower. SK hynix and SK Square posted modest gains despite the index declines.
- Korea
KOSPI Closes at 6,995.39, SK Hynix Surges 8.26%
On September 7, 2026, the KOSPI rose 4.61% to close just below 7,000. Among the tracked stocks, SK Hynix and SK Square posted gains in the 8% range.
- United States
Russell Rises as Memory Stocks Surge Amid Tesla Plunge
In the September 4, 2026 U.S. regular session, the S&P 500, Nasdaq, and Dow declined, while the Russell 2000 rose. Tesla fell 5.92%, while SanDisk and Micron posted sharp gains.
- Korea
KOSDAQ Surges 2.95%, SK Square Gains 6.12%
On September 4, 2026, the KOSPI and KOSDAQ both closed higher. Among tracked stocks, SK Square and SK hynix posted larger gains than the indexes.
- United States
Tesla Surges 5.42%, Nasdaq Rises 1.40%
All four major indexes rose in the September 3, 2026 U.S. regular session, led by the Nasdaq Composite. Tesla and Meta led gains among tracked stocks, while Micron and SanDisk posted more limited gains than the index.
- Korea
KOSPI Rebounds 0.26%, KOSDAQ Falls 1.71%
On September 3, 2026, the KOSPI closed modestly higher while the KOSDAQ declined. Hyundai Motor rose, while the tracked semiconductor stocks were weak.
- United States
Russell 2000 Rebounds 1.13%, Nvidia and Meta Strengthen
All four major U.S. indexes rose in the regular session on September 2, 2026, with the Russell 2000 posting the largest gain. Nvidia, Meta, and Micron were strong, while Microsoft and Apple closed in directions that differed from the broader indexes.
- Korea
KOSPI Plunges 3.99%, SK Square Falls 7.97%
On September 2, 2026, both the KOSPI and KOSDAQ closed lower. Among the tracked stocks, SK Square and Hyundai Motor posted steeper declines than the indexes.
- United States
Russell 2000 Falls 1.23%, Apple Alone Rises 2.61%
All four major indexes fell in the September 1, 2026 U.S. regular session, with the Russell 2000 posting the largest decline. Tesla and Micron weakened, while Apple and Meta rose.
- Korea
KOSPI Closes Higher Near 6,835; KOSDAQ Falls 1.56%
On September 1, 2026, the KOSPI edged higher to 6,835.80 points, while the KOSDAQ fell to 821.25 points. SK Square and SK hynix gained, while Hyundai Motor closed lower.
- United States
Tesla and SanDisk Gain as Russell 2000 Falls 1.92%
In the August 31, 2026 U.S. regular session, all major indexes declined, with the Russell 2000 posting the largest loss. Closing moves among tracked stocks diverged sharply, with Nvidia falling while Tesla and SanDisk rose.
- Korea
KOSPI Reclaims 6,820 as Large Caps Gain Amid KOSDAQ Decline
On August 31, 2026, the KOSPI rose to 6,820.02 points while the KOSDAQ fell to 834.29 points. Tracked large-cap stocks, including Samsung Electronics and SK hynix, outperformed the KOSPI.
- United States
Nvidia Falls 4.57%, Russell 2000 Drops 1.39%
In the August 28, 2026 U.S. regular session, the Russell 2000 and Nasdaq Composite posted notable declines. Nvidia’s sharp drop and Amazon’s surge coincided with sharply diverging closing moves among large technology stocks.
- Korea
KOSPI Falls 1.79% as Semiconductor Weakness Leaves KOSDAQ Flat
In Korea’s regular session on August 28, 2026, the KOSPI fell 1.79% and the KOSDAQ rose 0.09%. This closing recap covers weakness in tracked semiconductor stocks and Hyundai Motor’s relative strength.
- United States
Nasdaq Rises 1.57% as Nvidia Surges 8.74%
In the August 27, 2026, U.S. regular session, the Nasdaq Composite rose 1.57% and the S&P 500 gained 0.72%. Nvidia surged 8.74%, while Amazon, Meta, and Alphabet declined.
- Korea
KOSPI Closes Higher at 6,912, Hyundai Motor Falls More Than 2%
On August 27, 2026, both the KOSPI and KOSDAQ closed higher. SK hynix rose strongly, while Hyundai Motor weakened.
- United States
Dow Falls 0.21%, Megacap Tech Stocks Mixed
The four major U.S. indexes edged lower in the regular session on August 26, 2026. Meta and Apple rose, while Nvidia, Alphabet, and Tesla each fell more than 1%.
- Korea
KOSPI Rises Above 6,808 as Hyundai Motor Falls 3%
On August 26, 2026, the KOSPI rose 0.97%, while the KOSDAQ fell 0.03%. Samsung Electronics gained 1.75%, while Hyundai Motor declined 3.09%.
- United States
Nasdaq Rises 0.66% as Semiconductor Stocks Gain and SanDisk Declines
All four major indexes rose in the August 25, 2026 U.S. regular session. Nvidia, Meta, and Micron gained, while SanDisk and some large-cap technology stocks declined.
- Korea
KOSPI Rebounds to 6,742 Level; KOSDAQ Also Rises to 827 Level
On August 25, 2026, the KOSPI closed up 0.68% and the KOSDAQ up 1.70%. Hyundai Motor rose 1.69%, while SK Square fell 1.49%.
- United States
A Day When the Dow Rose While the Nasdaq and Semiconductor Stocks Fell
In the August 24, 2026 U.S. regular session, the Dow Jones rose, while the S&P 500, Nasdaq Composite, and Russell 2000 fell. Semiconductor stocks weakened, while some large-cap technology stocks closed higher.
- Korea
Samsung Electronics Plunges 8.70%, KOSPI Falls 3.12% While KOSDAQ Rebounds
On August 24, 2026, the KOSPI fell 3.12%, while the KOSDAQ rose 1.42%. Samsung Electronics plunged 8.70%, while Hyundai Motor posted a comparatively limited decline.
- United States
Dow Rebounds 0.98%, Tesla Surges 5.14%
All four major indexes rose in the U.S. regular session on August 21, 2026, with the Dow Jones posting the largest gain. Tesla surged more than 5%, while some semiconductor stocks, including Nvidia and Micron, declined.
- Korea
KOSPI Rises 0.88% While KOSDAQ Falls 4.63%
On August 21, 2026, the KOSPI rose to 6,912.95 points, while the KOSDAQ fell to 801.94 points. Samsung Electronics and SK hynix gained, but Hyundai Motor declined.
- United States
Micron Rises 3.97% as Dow and Russell Fall More Than 1%
All four major indexes declined in the August 20, 2026 U.S. regular session, with the Russell 2000 and Dow each falling more than 1%. Micron and SanDisk rose against the index declines.
- Korea
KOSPI Rebounds 5.89%…SK hynix Surges 12.73%
On August 20, 2026, the KOSPI closed up 5.89% at 6,852.58 points. SK hynix, SK Square, and Samsung Electronics outperformed the index.
- United States
Russell Rises 0.50% as Tesla Surges and Semiconductor Stocks Decline
In the August 19, 2026 U.S. regular session, all four major indexes rose, with the Russell 2000 posting the largest gain. Tesla and Amazon climbed while SanDisk and Nvidia declined.
- Korea
KOSPI Plunges 5.80%…SK Square and Semiconductor Stocks Extend Losses
In South Korea’s regular session on August 19, 2026, the KOSPI fell 5.80% to 6,471.17 points. Among the tracked stocks, SK Square and SK hynix posted particularly steep declines.
- United States
Apple rises as memory stocks plunge; Nasdaq falls 1.33%
All four major indexes fell in the August 18, 2026 U.S. regular session. Sharp declines in SanDisk, Micron, and Meta contrasted clearly with Apple’s gain.
- Korea
KOSPI Closes at 6,869.83; KOSDAQ Falls 3.52%
On August 18, 2026, both the KOSPI and KOSDAQ closed lower. SK Hynix was the only tracked stock to rise, while institutions were net sellers of 7,951억원.
- United States
SanDisk Surges 8.88% Amid Meta and Microsoft Weakness
All four major indexes declined in the August 17, 2026 U.S. regular session. Weakness in Meta and Microsoft contrasted sharply with strength in SanDisk and Micron.
- United States
Russell and Memory Stocks Rise Despite Large-Cap Index Declines
US large-cap indexes edged lower on August 14, 2026, while the Russell 2000 rose. A closing-bell review of gains in Sandisk and Micron and the rise in interest rates.
- Korea
KOSPI Rises 2.42%, Hyundai Motor Surges 8.24%
The KOSPI closed at 6,977.94 after crossing 7,000. Hyundai Motor rose 8.24%, while foreign investors recorded net purchases of 3 trillion won and 387 hundred million won.
- United States
Sandisk Surges as Nasdaq Rises, While Amazon Falls
The Nasdaq and S&P 500 rose on August 13, 2026, while the Dow lagged. This market-close briefing covers Sandisk’s surge, Amazon’s decline, and the divergence between Treasury yields and the VIX.
- Korea
KOSPI Surges 3.56%, Led by SK Square at 9.08%
On August 13, 2026, the KOSPI surged 3.56%, while the KOSDAQ rose 0.29%. SK Square and semiconductor stocks outperformed the index.
- United States
Russell, Nasdaq Rise; Memory Stocks Outperform
The Russell 2000 and Nasdaq rose on August 12, 2026, while the Dow edged lower. SanDisk, Micron, and Nvidia posted notable gains.
- Korea
Semiconductor Stocks Surge as KOSPI Gain Far Outpaces KOSDAQ
On August 12, 2026, the KOSPI rose 3.68%, while the KOSDAQ gained only 0.12%. SK Square and Samsung Electronics surged 8.36% and 6.68%, respectively.
- United States
Russell 2000 and Memory Stocks Rebound as Large Caps Weaken
On August 11, 2026, the Nasdaq fell 0.60%, while the Russell 2000 rose 0.32%. Weakness in Alphabet and Amazon contrasted with gains in Sandisk.
- Korea
Samsung Electronics Surges 4.13%, KOSPI Gains 0.73%
The KOSPI and KOSDAQ rose 0.73% and 0.39%, respectively, on August 11, 2026. Samsung Electronics gained 4.13%, while Hyundai Motor fell 1.23%.
- United States
Nasdaq and Semiconductor Stocks Fall as Oil Prices Surge
All major US indexes fell on August 10, 2026. WTI surged 5.15%, while Nvidia declined and Sandisk gained.
- Korea
KOSDAQ Surges 6.97% as KOSPI Nears 6,300
KOSDAQ surged 6.97%, while KOSPI rose 0.65%. We examine Hyundai Motor’s strength, semiconductor stocks’ weakness, and foreign investors’ net selling based on closing data.
- United States
Sandisk Bucked the Trend as Tech Stocks Rebounded
On August 7, 2026, the Nasdaq Composite rose 1.30%. Tesla and Nvidia gained, while Sandisk fell 3.68%.
- Korea
KOSPI Falls 0.60%, While Samsung Electronics Rises 0.22%
The KOSPI and KOSDAQ fell 0.60% and 0.36%, respectively, on August 7, 2026. This market-close briefing reviews diverging semiconductor stocks and foreign investors’ net selling.
- United States
Dow Falls 0.85%, SanDisk Plunges 6.81%
The Dow was the weakest major index on August 6, 2026, falling 0.85%. Microsoft rose 2.54%, while SanDisk dropped 6.81%.
- Korea
KOSPI Plunges 4.58%, While KOSDAQ Rises 0.26%
The KOSPI plunged 4.58% on August 6, 2026, while the KOSDAQ rose 0.26%. SK Square and SK hynix posted particularly steep declines.
- United States
Dow Rises 0.49%, Nasdaq Falls 0.83%
The Dow rose, while the Nasdaq and Russell 2000 declined. Nvidia gained 3.43%, while Sandisk and Alphabet fell sharply.
- Korea
KOSPI Rises 3.76%, Led by Semiconductor Stocks
The KOSPI and KOSDAQ rose 3.76% and 2.42%, respectively, on August 5, 2026. Foreign investors were net buyers, and SK hynix gained 5.77%.
- United States
Amazon Falls Despite Nasdaq’s 2.59% Gain
The Nasdaq Composite led the major indexes higher with a 2.59% gain. SanDisk and Micron surged, while Amazon and Meta declined and the VIX rose.
- Korea
KOSDAQ Surges 5.88%, KOSPI Rebounds 1.62%
The KOSDAQ surged 5.88% on August 4, 2026, while the KOSPI rose 1.62%. SK Square gained, but Hyundai Motor declined.
- United States
Nasdaq Rises 2.13%, Apple Moves the Other Way
The Nasdaq Composite led the major indexes higher with a 2.13% gain. Meta and Sandisk surged more than 6%, while Apple fell 1.78%.
- Korea
KOSPI Plunges 5.12%, While KOSDAQ Rises 2.44%
The KOSPI fell 5.12% as major semiconductor stocks plunged. The KOSDAQ and Hyundai Motor rose, showing sharply divergent moves within the market.
- United States
Amazon Surges, Apple Plunges as Megacap Stocks Diverge
The Nasdaq rose, while the Russell 2000 declined. Sharp gains in Amazon and Alphabet and weakness in Apple and memory stocks widened the gap among individual stocks.
- Korea
KOSPI Surges 17.91%, Semiconductor Stocks Near Daily Upper Limit
The KOSPI and KOSDAQ posted double-digit gains during the regular session on July 31, 2026. SK hynix and SK Square rose nearly 30%.
- United States
Nasdaq Rebounds 2.78%, Semiconductor Stocks Surge
US stocks rebounded across the major indexes on July 30, 2026. SanDisk, Micron, and Microsoft surged, while Meta fell 7.95%.
- Korea
KOSDAQ Falls 2.70% as SK Group Stocks Extend Losses
The KOSPI and KOSDAQ both declined during the July 30, 2026 regular session. Despite net buying by foreign investors, SK hynix and SK Square each fell more than 5%.
- United States
Stocks Tumble After Fed Holds Rates, Dow Falls 2.19%
US stocks closed lower across all major indexes on July 29, 2026. Micron and Sandisk plunged, while volatility and oil prices rose.
- Korea
KOSPI and KOSDAQ Plunge About 6% as Semiconductor Losses Widen
The KOSPI and KOSDAQ fell about 6% during the regular session on July 29, 2026. SK hynix and SK Square posted steeper declines than the indexes.