KOSPI Rebounds 4.56% as Household Loans Jump 6.4 Trillion Won | Korea Weekly Wrap.zip Nov 9-13

Korea Daily Brief
By BriefZip Editorial
Korea Weekly Wrap.zip briefing for the week of Nov 9-13 2026

The KOSPI closed at 5,290.53 on Nov 13, up 4.56% from 5,059.69 a week earlier, the session when a 6% plunge had tripped a circuit breaker. The rebound came alongside a 6.4 trillion won jump in October household loans, a record 1.63 trillion won fine on 15 government bond dealers, a chain of data leaks that reached crypto exchange Coinone, and another round of record-breaking export numbers led by semiconductors.

Cover card for the week of Nov 9-13 2026 listing five stories: KOSPI up 4.56% in a week, October household loans up 6.4 trillion won, a 1.63 trillion won bond-rigging fine, a Coinone data leak and more, and October ICT exports up 202%

Key numbers for the week:

  • KOSPI: 5,290.53, up 4.56% from the Nov 6 close of 5,059.69
  • KOSDAQ: 699.66, up 8.60% from 644.27
  • October household loans, all financial sectors: up 6.4 trillion won
  • Bond-rigging fine: 1.63 trillion won on 15 primary dealers
  • Exports for Nov 1-10: $33.5 billion, up 111.9% from a year earlier
  • October ICT exports: $70.35 billion, up 202%

A two-day rally after the circuit breaker

KOSPI rose from 5,059.69 on Nov 6 to 5,290.53 on Nov 13, up 4.56%, while KOSDAQ gained 8.60%; KOSPI jumped 4.39% on Nov 10 and touched 5,504.44 intraday on Nov 13 before closing down 0.98%

The week started where the previous one ended, under pressure. On Nov 6 the KOSPI fell 6.02% and triggered a circuit breaker, as we covered in last week's Korea Weekly Wrap. Monday, Nov 9, brought another small loss. Then the market turned sharply.

DateKOSPI closeDaily change
Nov 6 (Fri)5,059.69-6.02%
Nov 9 (Mon)5,018.85-0.81%
Nov 10 (Tue)5,239.13+4.39%
Nov 11 (Wed)5,375.36+2.60%
Nov 12 (Thu)5,342.73-0.61%
Nov 13 (Fri)5,290.53-0.98%

Laid out by day, almost all of the weekly gain came on Tuesday and Wednesday. The KOSPI jumped 4.39% on Nov 10, and on Nov 11 the KOSDAQ rose more than 5% and set off a buy-side sidecar for a second straight day. A sidecar is a brake used by the Korea Exchange: when futures prices swing sharply, program trading is paused for five minutes.

Thursday and Friday were both down days. On Nov 13 the KOSPI reached 5,504.44 during the session and then slid to close at 5,290.53. By our calculation the close was 3.89% below the intraday high, a give-back of more than 200 points in a single session.

On Nov 13 foreign investors sold a net 550.5 billion won of KOSPI shares, while domestic institutions bought a net 533.1 billion won. The won was calmer: the 3:30 p.m. daytime close moved from 1,330.7 per dollar on Nov 12 to 1,336.7 on Nov 13, a change of six won.

The rebound was clear, but the day-to-day swings stayed large: +4.39% on Nov 10, then a 3.89% slide from the Nov 13 intraday high.

Household loans turn up again, led by a credit-loan swing

October all-sector household lending rose 6.4 trillion won after a 2.2 trillion won drop in September, credit loans swung from minus 2.9 trillion to plus 1.2 trillion won, and overdraft balances at the five big banks hit 44.26 trillion won on Nov 12

According to the Financial Services Commission's preliminary October household lending report, released Nov 11, household loans across all financial sectors rose 6.4 trillion won in October. That reversed a 2.2 trillion won decline in September and matched the 6.4 trillion won rise in July.

CategorySeptemberOctober
All household loans-2.2 trillion won+6.4 trillion won
Mortgages+3.2 trillion won+4.0 trillion won
Credit loans-2.9 trillion won+1.2 trillion won

Mortgages remained the bigger driver, rising 4.0 trillion won. The more telling line is credit loans. They swung from a 2.9 trillion won decline in September to a 1.2 trillion won increase in October, a turnaround of 4.1 trillion won.

By our calculation, credit loans accounted for about 19% of the October increase. A Bank of Korea official said net stock purchases by individuals contributed to the rise in other loans, Segye Ilbo reported.

Cumulative household loan growth for January through October reached 42.4 trillion won, already 4.4 trillion won more than the 38.0 trillion won added in all of 2025. The trend continued into November: Yonhap reported that overdraft balances at the five largest banks reached 44.26 trillion won on Nov 12, the highest in four years and three months.

We explained what that number means in our overdraft loan explainer. The next checkpoint is Nov 18, when the Bank of Korea releases third-quarter household credit. At the end of June that total stood at 2,019.8 trillion won.

A record fine for rigging government bond auctions

The Fair Trade Commission fined 15 primary dealers, 10 brokers and 5 banks, 1.63 trillion won over 150 rigged auctions between 2020 and 2023, about 2.2 times the previous record cartel fine of 747.6 billion won, and referred seven firms to prosecutors

On Nov 11 the Korea Fair Trade Commission said 15 primary dealers, 10 securities firms and five banks, colluded in 150 Korean Treasury Bond auctions between January 2020 and June 2023. It imposed fines totaling 1.6266 trillion won and referred seven firms for prosecution. Primary dealers are the institutions licensed to bid directly in government bond auctions. The regulator concluded that the collusion pushed winning yields higher and cost the treasury money, because a higher auction yield means the government pays more interest on the same amount of borrowing.

The fine is about 2.2 times the previous record cartel penalty of 747.6 billion won.

Mirae Asset Securities reported a third-quarter operating loss of 502.3 billion won in a regulatory filing and said it was reviewing whether to book the fine in its accounts. Yonhap reported that the industry is weighing lawsuits. We covered the case in detail in our bond dealer fine story.

A chain of data leaks reaches Coinone

Coinone logo with data leaks from Coinone to Yellow Umbrella: Coinone said a hack at call-center contractor Metaem leaked names, bank accounts and ID numbers customers had shared, its member, trading and wallet systems run separately, and Yellow Umbrella, a mutual aid fund with 1.92 million members, may have leaked names and partial ID numbers

Crypto exchange Coinone said in a notice on Nov 15 that an outside attacker broke into the servers of Metaem, the contractor that runs its customer support, and leaked personal data, Yonhap reported. The exposed fields were information customers had typed into support chats, including names, email addresses, phone numbers, bank account numbers, resident registration numbers, home addresses and wallet addresses. Coinone said its member accounts, trading and wallet systems run separately from the contractor's servers and that it found no sign of a direct intrusion. It reported the incident to the Korea Internet & Security Agency, the privacy regulator and the Financial Supervisory Service, and warned customers about phishing calls impersonating the exchange.

The same pattern appeared elsewhere. The Korea Federation of SMEs said personal data on the website of Yellow Umbrella, a mutual aid fund that helps small business owners save for retirement, may have leaked, including names and the first seven digits of resident registration numbers. The fund has 1.92 million active members. Yonhap also reported that the Financial Security Institute, which oversees security for the financial sector, was hacked on Nov 9, with about 130 files from 48 companies believed to have leaked.

Chips keep breaking export records

Exports for Nov 1-10 hit 33.5 billion dollars, up 111.9% from a year earlier, October ICT exports reached 70.35 billion dollars, up 202%, the fastest growth on record, chips were 56.47 billion dollars, up 259.4%, and ICT made up 61% of all exports

The Korea Customs Service said on Nov 11 that exports for the first 10 days of November reached $33.5 billion, up 111.9% from a year earlier on a preliminary basis. There were 7.5 working days this year against 7.0 last year, so the daily average gain was a still-huge 97.7%. Chip exports were $16.6 billion, the most ever for that period.

On Nov 15 the Ministry of Science and ICT and the trade ministry said October ICT exports rose 202% to $70.35 billion, the fastest growth rate on record, Yonhap reported. Semiconductors made up $56.47 billion of that, up 259.4%, and server solid-state drive exports grew 584.3%. ICT goods accounted for 61% of Korea's total exports of $115.28 billion. By our calculation, chips were about 80% of ICT exports and about 49% of total exports.

The destination mix shows where the demand came from. ICT exports to the United States reached $15.56 billion, up 522.4%, while shipments to China, including Hong Kong, were $27.11 billion, up 213.1%, Yonhap reported. ICT imports rose 52.7% to $19.8 billion, leaving an ICT trade surplus of $50.55 billion, the second month in a row above $50 billion.

What to watch next week

Coming up in Korea time: the IMF Article IV mission wraps up on Nov 17, Nvidia Q3 results on Nov 18 at 6:20 a.m., Bank of Korea Q3 household credit and the KDI economic outlook on Nov 18, and Anthropic's expected Nasdaq debut on the night of Nov 19

The IMF's annual Article IV consultation with Korea wraps up on Nov 17 with a briefing on its findings. On Nov 18 the Bank of Korea releases third-quarter household credit and the Korea Development Institute publishes its economic outlook, the same morning Nvidia reports quarterly results at 6:20 a.m. Korea time. Anthropic's Nasdaq debut is expected on the night of Nov 19, Korea time.

Key terms

  • Circuit breaker: a market-wide trading halt triggered when an index falls by a set percentage in one session.
  • Sidecar: a five-minute pause on program trading when futures prices swing sharply.
  • Primary dealer: a financial firm licensed to bid directly in government bond auctions.
  • Credit loan: an unsecured personal loan, including overdraft lines, granted on the borrower's credit.

Bottom line

The KOSPI won back 4.56% in the week after its circuit breaker, but credit loans turned up again and a wave of contractor hacks reached a crypto exchange. Nov 18 brings Bank of Korea household credit data and Nvidia's results on the same morning.

Sources: FSC October 2026 household lending report, KFTC announcement on the government bond auction cartel, Yonhap report on the Coinone data leak

Comments

Post a Comment

Popular posts from this blog

Korea Today.zip Nov 4: KOSPI Recovers From a 4% Intraday Drop as Coupang Posts a Loss

Korea Today.zip Nov 4: KOSPI Recovers From a 4% Intraday Drop as Coupang Posts a Loss
South Korea's stock market took buyers on a wild ride on Wednesday, November 4, 2026. The benchmark KOSPI index slid as much as about 4% during the session, then turned around in the afternoon to close 0.62% higher at 5,683.80. The same day, e-commerce company Coupang reported a third-quarter operating loss despite higher sales, Hyundai Motor Group showed a new building block for large hydrogen plants, and a consumer dispute panel ordered Mercedes-Benz Korea to compensate electric-car buyers who were misled about their batteries. This briefing walks through each story, explains the numbers and terms, and ends with what to watch next. Won amounts are converted at about 1,341.5 won per dollar, the Seoul market reference rate at 3:30 p.m. on November 4, unless another rate is noted. Stocks: a 400-point swing in one day The KOSPI, which tracks the stocks listed on the main board of the Korea Exchange, closed up 35.01 points, or 0.62%, at 5,683.80. The KOSDAQ, Korea's market ...
Read more

Korea Today.zip Nov 6: KOSPI Trips a Circuit Breaker and Closes Down 6%

Korea Today.zip Nov 6: KOSPI Trips a Circuit Breaker and Closes Down 6%
South Korean stocks suffered a second straight heavy loss on Friday, November 6. The KOSPI fell more than 8% early in the session, which triggered a market-wide circuit breaker, and it closed at 5,050.29, down 6.19%. The KOSDAQ dropped 5.04% to 644.25. The government responded the same morning by suspending a margin loan rule to slow forced selling, a court paused part of Coupang's record privacy fine, and Hankook Tire reported third-quarter results. Dollar figures below use 1,357 won per dollar, Woori Bank's November 6 reference rate. KOSPI: a 20-minute halt and a 6% drop The KOSPI is the main index of the Korea Exchange's main board. It opened 2.24% lower at 5,263.26 and kept sliding. At 9:03 a.m. it had stayed more than 8% below the previous close for one minute, so a first-stage circuit breaker stopped all trading for 20 minutes. After trading resumed, the slide continued and a sell-side sidecar, which pauses program sell orders for five minutes, was triggered at 9...
Read more

US Today.zip Nov 2: Oil Slides 7%, Dow Edges Up as Nasdaq Falls 1%

US Today.zip Nov 2: Oil Slides 7%, Dow Edges Up as Nasdaq Falls 1%
Wall Street split on Monday, Nov. 2. Crude oil fell more than 7% intraday on hopes for a US-Iran diplomatic breakthrough, while the Dow rose 0.41%, while the tech-heavy Nasdaq Composite slid 1.07%. Factory data came in strong, and two big corporate deals landed in the chip and cloud space. Stocks and oil The Dow closed at 51,983.98, up 213.67 points. The S&P 500 fell 0.51% to 7,541.40, and the Nasdaq dropped 272.68 points to 25,164.32. Market commentary described the day as a rotation out of technology stocks. The three benchmarks do not hold the same mix of companies. The Dow follows 30 large blue-chip businesses and is price-weighted, so a company's share price affects its influence. The Nasdaq Composite has a particularly large technology presence, while the S&P 500 covers a broader group of large US companies. A rise in the Dow alongside a decline in the other two is therefore not a contradiction: it shows that the day's gains and losses were distributed uneve...
Read more

Marvell Agrees to Buy Lumentum in All-Stock Deal at $115 Billion Enterprise Value

Marvell Agrees to Buy Lumentum in All-Stock Deal at $115 Billion Enterprise Value
Marvell Technology agreed on Nov. 2 to acquire Lumentum in an all-stock deal valued at about $115 billion in enterprise value. No cash changes hands: Lumentum holders receive Marvell shares. The deal is expected to close in the first half of 2028. Why Marvell wants Lumentum Marvell designs chips that move electrical signals between processors and servers inside data centers, along with custom AI chips. Lumentum makes lasers, optical transceivers and optical circuit switches that send data as light. The companies said copper links are hitting speed and power limits as AI data centers grow, accelerating the shift to optical connections. Optical transceiver: a part that turns electrical signals into light for fiber links, and back again on the other end. The strategic point is that faster processors are useful only when the rest of the system can keep them supplied with data. Electrical chips, network equipment and optical components perform different jobs along that path. Marvell i...
Read more

US Today.zip Nov 3: Chip Rebound Lifts Nasdaq as Apple Drags the Dow

US Today.zip Nov 3: Chip Rebound Lifts Nasdaq as Apple Drags the Dow
Wall Street split again on Tuesday, November 3, 2026, as Americans voted in the midterm elections. A rebound in chip stocks lifted the Nasdaq Composite 0.83% , while the Dow Jones Industrial Average slipped 0.38% as Apple fell. September job openings came in above expectations, Apple's record quarter was overshadowed by a softer margin outlook, and Palantir reported that revenue nearly doubled from a year earlier. This briefing walks through the market close, the jobs data and the two company reports, with the numbers explained and what to watch next. Stocks: chips bounce back on Election Day The Nasdaq Composite closed at 25,372.01, up 207.65 points. The S&P 500 gained 27.52 points, or 0.36%, to 7,568.92. The Dow fell 197.26 points, or 0.38%, to 51,786.72. Chip stocks had sold off hard the previous session, and many of them recovered on Tuesday. Because the Nasdaq Composite is heavily weighted toward technology companies, it tends to move most when semiconductors and so...
Read more

Korea Today.zip Nov 3: KOSPI Falls 3.59%, IPO Cornerstone Rules Set for Nov. 13

Korea Today.zip Nov 3: KOSPI Falls 3.59%, IPO Cornerstone Rules Set for Nov. 13
South Korean stocks had a rough Tuesday. The benchmark KOSPI fell 3.59% on Nov. 3, and the tech-heavy KOSDAQ dropped 4.08%. On the same day, the government finalized the details of a new rule that lets long-term institutional investors receive IPO shares in advance, Kia announced a plan to supply electric vans to a major Japanese taxi operator, and the navy launched a new 3,600-ton submarine built with 70 domestically made systems. Here is what happened and why it matters. Stocks: a broad sell-off The KOSPI, which tracks large companies listed on the Korea Exchange's main board, closed at 5,648.79, down 210.29 points. The KOSDAQ, Korea's smaller market dominated by technology and biotech growth companies, closed at 704.39, down 29.97 points or 4.08%. Both indexes stayed weak through the session. Market commentary pointed to the burden of heavy artificial intelligence investment and the funding needed to pay for it, even though international oil prices were lower. On Nov....
Read more

AMD MEXT Cuts Server DRAM Needs by Up to 75%: What It Means for Memory Makers

AMD MEXT Cuts Server DRAM Needs by Up to 75%: What It Means for Memory Makers
AMD has introduced software that lets servers run with far less DRAM, the fast working memory that sits next to a processor. The company says its MEXT software can cut the DRAM a workload needs by 20% to 75%, depending on the job, while keeping up to 99% of the performance of an all-DRAM setup. The timing matters. Memory prices have surged as artificial intelligence data centers buy up supply, and many server buyers want to spend less on it. For the two biggest memory makers, Samsung Electronics and SK hynix, the news raises a fair question: what happens to demand if customers learn to need less DRAM? What is AMD and what is MEXT? AMD, short for Advanced Micro Devices, is a U.S. chip designer best known for the CPUs, or central processing units, that act as the brain of PCs and servers, along with graphics chips. In June 2026 it bought a startup called MEXT, which had built software that treats flash storage as an extension of system memory. AMD presented the technology alongside it...
Read more