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South Korea Daily Briefing

Wednesday, 28 October 2026

📈 KOSPI proxy surges 4.5% — SK Hynix 'sold out through 2029' thesis sends HBM cycle bulls back in

It was a standout day for Korean equities. The iShares MSCI Korea ETF added 4.47% to 164.50 — one of the strongest sessions in APAC. The catalyst is unmistakable: a detailed Seeking Alpha analysis arguing SK Hynix is 'sold out through 2029' with a 5x P/E by year-end 2027 (the author's counterintuitive takeaway being the valuation still 'doesn't make sense' at that price, which paradoxically validates the demand story). Separately, Chosun Ilbo reported SK Hynix's 9M 2026 results with approximately 100 trillion KRW in revenue, roughly 80 trillion KRW in gross profit, and 60 trillion KRW in shareholder returns — numbers that reframe this as a cash-return story, not just a growth story. Sector reads confirm: Tech/Semis +1.09%, Banks +1.52%, with only Industrials slightly negative at -0.48%. The KOSPI story today is simple: the HBM upcycle has durability.

By the numbers

iShares MSCI KoreaEWY
165.66
+5.21%(+8.20)

3 things that moved markets

1.

SK Hynix sold out through 2029: the HBM demand thesis that's driving KOSPI

Seeking Alpha's deep-dive analysis argues SK Hynix's High Bandwidth Memory order book is effectively committed through 2029, creating multi-year revenue visibility that the current valuation (even at a still-rich 5x forward P/E) arguably undervalues. The piece's contrarian framing — 'doesn't make sense at this valuation' — is actually a bullish tell: when analysts argue a stock is overvalued yet DRAM supply-demand math demands higher prices, the market tends to price the math, not the multiple.

Read at seekingalpha.com ↗
2.

SK Hynix 9M results: 100 trillion revenue, 60 trillion returned to shareholders

Chosun Ilbo's Korean-language report on SK Hynix's nine-month 2026 financial results shows approximately 100 trillion KRW in revenue and 80 trillion KRW in gross profit through September — establishing this as one of the most profitable semiconductor cycles in the company's history. The 60 trillion KRW in shareholder returns reframes the investment case: this is now a capital-return story layered on top of the HBM growth thesis, which changes the denominator for yield-oriented institutional buyers.

Read at 조선일보 (경제) ↗
3.

Horizon Energy to more than double South Korea's plastic-to-oil capacity

Korea Economic Daily reports Horizon Energy is scaling its chemical recycling footprint in South Korea with a more than doubling of its plastic-to-oil conversion capacity. While not a KOSPI heavyweight mover, this is a read-through for the broader circular economy/ESG-linked industrial theme that POSCO Holdings and LG Chem are also positioning around. For ESG-mandated portfolios, this capacity expansion signals Korean industrial companies are building legitimate green-revenue streams.

Read at Korea Economic Daily ↗

Top movers

Gainers (4)

KBKB+2.05%SHGSHG+1.37%LPLLPL+1.09%WFWF+0.95%

Losers (1)

KEPKEP-0.57%

Sector heatmap

Tech/Semi+1.09%Banks+1.46%Industrials-0.57%

Smart-money note

KOSPI +4.47% in a day when broader APAC was flat-to-down says this was a Korea-specific re-rating, not a macro rally. The KB Financial (+Banks+1.52%) co-movement confirms this isn't just a semi play — Korean banks benefit from the wealth effect of surging semiconductor company valuations (pension/NPS holding exposure). The KRW direction tomorrow matters: won strengthening on risk-on inflows could create a feedback loop where exporters' margins look better in local currency terms, reinforcing the rally.

What to watch tomorrow

Samsung Electronics HBM response to SK Hynix order-book narrative

If SK Hynix is 'sold out through 2029', Samsung's HBM yield improvement and customer qualification timing becomes the next DRAM pricing catalyst

KOSDAQ tech names reaction to KOSPI surge

KOSDAQ rotation into smaller semi/battery names typically follows KOSPI large-cap breakouts with a 1-2 session lag

LG Energy and Samsung SDI K-battery inventory data

EV battery demand outlook for 2027 is the next big disclosure — cell utilization rates and customer re-ordering are the signals to watch

Browse all South Korea briefings →