A Single Session That Reframed the Story
Tuesday 13 October ended with the KOSPI at 6,035.35, down 5.46% on the day from Monday's close of 6,384.24. The index briefly traded as low as 5,911.11 and triggered a sell-side trading curb. The trigger came from outside Seoul: China's CXMT reported progress on a next-generation memory cell, and investors immediately asked how much longer the memory upcycle can run.
SK Hynix closed at 1,443,000 won, down 10.09%, and Samsung Electronics at 232,000 won, down 7.39%. Two tickers produced most of the index move. That arithmetic is the central fact about Korean equities sixteen months after Lee Jae-myung took office on 4 June 2025, promising higher household incomes and the end of the "Korea discount."
The Index Path in Numbers
The KOSPI closed at 2,698.97 on 2 June 2025, the last session before the inauguration. It finished 2025 at 4,214.17 and peaked at a closing high of 9,114.55 on 22 June 2026. A 10.84% fall took it to 6,023.66 on 28 July after Wall Street's memory-stock sell-off, followed by a recovery to 7,003.74 on 2 October and a renewed slide.
| Date | KOSPI close | Context |
|---|---|---|
| 2 June 2025 | 2,698.97 | Session before inauguration |
| End 2025 | 4,214.17 | Full-year close |
| 22 June 2026 | 9,114.55 | Closing high |
| 28 July 2026 | 6,023.66 | After memory sell-off |
| 2 October 2026 | 7,003.74 | Recovery peak |
| 13 October 2026 | 6,035.35 | Down 5.46% |
Even after the drop, the index sits 43% above its end-2025 level and 124% above where it stood before Lee's inauguration. It is also 34% below the June high. Both statements are true at once, which is why the Korean story divides opinion.
Where the Export Boom Actually Comes From
Trade data for September, released on 1 October by the Ministry of Trade, Industry and Resources, show an engine with one cylinder. Exports rose 83.5% year on year to a record $120.9 billion. Semiconductors reached $60.3 billion, up 263%, close to half the total. Shipments to the United States climbed 137% to $24.33 billion and to China 123% to $26 billion.
Cars moved the other way, falling 5.5% to $6.05 billion. The monthly trade surplus set a record at $49.85 billion, and January–September exports passed $800 billion, already above the full-year 2025 record of $709.3 billion. This is largely DRAM and high-bandwidth memory pricing flowing into national accounts rather than broad global demand.
Growth Forecasts Catch Up
The Bank of Korea puts 2025 growth at 1.0%, down from 2.0% in 2024. The current year looks nothing like it. GDP rose 3.8% year on year in the first quarter and 3.7% in the second, with quarter-on-quarter gains of 1.8% and 0.6%. Real exports added 8.9% in the second quarter and private consumption 2.4%.
In August the central bank lifted its 2026 growth forecast to 3.3% from 2.6% and projected 2.9% for 2027. On 13 October the IMF matched that figure, raising its own 2026 call to 3.3% from 2.6% three months earlier and naming semiconductor exports as the reason.
Tariffs, Pledges and a Political Detour
Trade with Washington has been rebuilt around a 15% tariff. The July 2025 agreement cut reciprocal and auto tariffs on Korean goods to that level, effective 1 November 2025. Seoul committed $350 billion of investment in the United States, including $150 billion for shipbuilding, to be deployed at roughly $20 billion a year.
In late January 2026 President Trump threatened to raise tariffs on Korea to 25%, arguing the National Assembly had not formalised the deal. Parliament passed a special act implementing the investment pledge in March, defusing the threat.
Monetary Tightening and a Firmer Won
The Bank of Korea held its base rate at 2.50% for seven consecutive meetings into April, then changed course. It raised the rate to 2.75% on 16 July, the first increase since January 2023, and to 3.00% on 27 August, citing above-target inflation, oil prices and household credit. Consumer prices rose 3.2% in June, 3.1% in August and 2.9% in September.
The won ended 2025 near 1,438 per dollar, weakened to roughly 1,554 in early June and traded around 1,339 on 13 October, according to Yahoo Finance — about 7% stronger than in January.
Governance Reform and the Case for a Higher Multiple
Policy carried part of the rerating. The 2024 Value-up programme asked listed firms to publish shareholder-return plans. Lee's legislative majority went further, amending the Commercial Act twice in 2025: directors now owe a fiduciary duty to shareholders rather than only to the company, electronic shareholder meetings became mandatory, and board-election voting rules were tilted toward minority investors.
A February 2026 revision made cancellation of treasury shares mandatory, stripping chaebol families of a long-used control-defence tool. The package resembles the Tokyo Stock Exchange's price-to-book campaign: it reshapes the incentive to hoard cash, but works slowly and depends on enforcement.
Pay Packets Tell a Different Story
The Ministry of Employment and Labor's monthly labour survey shows the average worker at a firm with at least one employee earning 4.316 million won in July 2026, up 2.5% year on year — about $3,220 a month at 1,340 won per dollar. Adjusted for inflation, real wages fell 0.3%, the fourth consecutive monthly decline.
Regular workers averaged 4.6 million won against 1.7 million won for temporary and daily staff. Firms with 300 or more employees paid 6.5 million won on average, roughly $4,850, versus 3.8 million won, about $2,840, at smaller employers. Large-firm pay rose 3.3%, small-firm pay 1.7%.
The 2026 minimum wage is 10,320 won an hour, up 2.9% from 10,030 won, equal to 2,156,880 won on a standard 209-hour month, around $1,610. On 14 July 2026 the Minimum Wage Commission set the 2027 rate at 10,700 won, up 3.7%, by 17 votes to 11; the monthly equivalent is 2,236,300 won, roughly $1,670. Raises of 2.5% to 3.7% against inflation near 3% leave households roughly where they started.
Credit Cools, Seoul Apartments Do Not
Household loans at the five largest banks fell by 1.28 trillion won in September to 780.83 trillion won, the first decline in six months, though home-backed loans still edged up to 621.39 trillion won. Housing-backed loans in the Seoul area have been capped at 600 million won since June 2025.
Prices have ignored the cap. Korea Real Estate Board data show Seoul apartment values rising for a record 87th straight week, up 0.12% in the latest week and 8.31% since the start of the year. The leadership has rotated: Gangnam fell 0.34%, Seocho 0.27% and Songpa 0.19%, while Seodaemun and Gangbuk gained roughly 0.35%.
What Foreign Money Is Really Buying
The iShares MSCI South Korea ETF closed on Monday 12 October at $170.11, up 75% from $97.22 at the end of 2025 but 22% below its closing high of $219.20 on 18 June. As of 9 October SK Hynix accounted for 24.10% of the fund and Samsung Electronics 23.48%. Tuesday's 5.46% drop in Seoul is not yet reflected in that price.
In analyst Ruslan Averin's view, three readings decide the next leg: the Bank of Korea decision on 22 October, where a third hike or a pause is in play; monthly chip exports measured against the $60.3 billion September level, the earliest signal on memory pricing; and the won near 1,339, since a firmer currency lifts dollar returns while squeezing exporters. Governance reform supports a higher multiple than before 2025, but offers no shelter from a memory downcycle.