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South Korea Daily Briefing

Thursday, 30 July 2026

📈 KOSPI proxy +10.6% — Samsung's 89.5T KRW H1 operating profit (99.7% from semiconductors) triggers one of the sharpest single-session re-ratings in recent memory

iShares MSCI Korea surged +10.59% to 159.48 on July 30 — a move of this magnitude in a single session requires a structural catalyst, and Samsung Electronics delivered exactly that: H1 2026 operating profit of 89.5T KRW with semiconductors accounting for 99.7% of that figure. Tech/Semi sector +7.53% was the engine room, with LPL +7.53% leading; Banks +6.33% (Woori Financial WF +7.08%, KB Financial KB +6.86%, Shinhan SHG +5.05%) caught the risk-on spillover; Industrials +5.27% (Korea Electric Power KEP +5.27%) completed the sweep. Zero losers in the top-movers universe today — a clean bull signal. When a session has no red names, you are witnessing sentiment capitulation from bears, not sector rotation. The AI capex super-cycle is the structural frame: global big tech is deploying approximately 7,600T KRW (roughly $5.3T) in AI infrastructure buildout, and Samsung Electronics and SK Hynix sit at the intersection of every HBM and DRAM spending line in that stack. Korean securities firms are registering their best-ever H1 results (Kiwoom Securities net profit >1T KRW), which confirms the retail investor bid — domestic liquidity is not breaking down, it is accelerating.

By the numbers

iShares MSCI KoreaEWY
159.94
+10.91%(+15.73)

3 things that moved markets

1.

Samsung 89.5T KRW H1 OP: semiconductors = 99.7%

Samsung Electronics reported H1 2026 operating profit of 89.5T KRW with semiconductors delivering 99.7% of that total — a concentration ratio that removes any ambiguity about where Samsung's value is accruing. This is the defining earnings print for the Korean market in 2026: it validates the HBM supercycle thesis, it confirms that AI datacenter spending is landing in Samsung's order book at scale, and it resets the KOSPI earnings trajectory for the full year. Samsung Electro-Mechanics (a separate entity) also reported Q2 operating profit of 440.4B KRW, up 107% YoY — the entire Samsung supply chain is inflecting simultaneously. The chaebol governance discount, which had historically capped KOSPI multiples, is becoming structurally harder to sustain when semiconductor profitability is running at these levels.

Read at 조선일보 (경제)
2.

Big tech 7,600T KRW AI capex race: semiconductor demand is solid

Global big tech companies are collectively committing approximately 7,600T KRW (roughly $5.3T) to AI infrastructure, according to Chosun Ilbo's analysis — a number that puts semiconductor demand certainty in a different category from previous tech cycles. This is not a demand-pull story based on consumer adoption; it is hyperscaler-led capacity-reservation spending that flows directly into HBM3e, DRAM bit growth, and advanced packaging at Samsung and SK Hynix. The implication for Korean equities is straightforward: KOSPI's semiconductor sector has a committed demand floor that makes the earnings trajectory more predictable than in any prior upcycle. SK Hynix's decision to run 'half-day deep AI aptitude interviews' signals that the company is hiring aggressively — this is an expansion posture, not a maintenance one.

Read at 조선일보 (경제)
3.

K-battery 3 companies simultaneously turn Q2 profitable

LG Energy Solution, Samsung SDI, and SK On — Korea's three major EV battery producers — all returned to profitability in Q2 2026 simultaneously, the first time this has happened since the EV demand deceleration began. This is the most underappreciated data point in the July 30 session: the market's attention was on Samsung Electronics semiconductors, but the K-battery inflection is equally significant for the KOSDAQ complex and for Korea's EV supply chain names. The question now is whether Q2 profitability is structural (EV demand floor is in) or cyclical (inventory restocking ahead of Q3 production ramp). If Q3 guidance confirms sustained black numbers, the K-battery re-rating trade — which has been a crowded short — becomes a forced-cover scenario into year-end.

Read at 조선일보 (경제)

Top movers

Gainers (5)

WFWF+7.56%KBKB+7.48%LPLLPL+6.45%KEPKEP+5.71%SHGSHG+4.88%

No decliners today

Sector heatmap

Tech/Semi+6.45%Banks+6.64%Industrials+5.71%

Smart-money note

Samsung Electronics' 89.5T KRW H1 operating profit with 99.7% semiconductor concentration is the single most important Korean earnings print of the year — it doesn't just beat consensus, it reframes what the Korean market is structurally worth. At this profitability level, the standard chaebol governance discount that KOSPI has historically traded at becomes mathematically difficult to justify. SK Hynix running half-day deep AI capability interviews is a real-time hiring signal: they are staffing for expansion, which means they have visibility on order intake that gives them confidence to add fixed costs now. KB Financial +6.86% and Woori +7.08% are not just risk-on momentum — Korean banks have NIM tailwinds from a higher-for-longer BoK rate environment, and their wealth management AUM is swelling alongside the broader retail investor rally confirmed by Kiwoom's >1T KRW net profit. The K-battery simultaneous Q2 profitability turn is the sleeper catalyst: LG Energy, Samsung SDI, and SK On have been a crowded-short consensus trade — forced covering into a confirmed black quarter is the mechanical tailwind. Key forward watch: Samsung's Q3 HBM mix guide. If they confirm >50% HBM3e penetration in memory revenue by Q4, KOSPI 3,200 becomes a realistic target within this upcycle.

What to watch tomorrow

Samsung HBM Q3 mix guide

The 89.5T KRW H1 print is backward-looking; the Q3 HBM3e revenue share and bit-growth guidance is the number that drives the next leg of KOSPI upward. A commitment to >50% HBM3e mix in memory revenue by Q4 would validate the AI-demand stack thesis and push KOSPI multiple expansion; any downward revision to the HBM ramp timeline reopens the short case.

BoK rate path and KRW

The KOSPI ETF's +10.59% single-session move implies KRW strengthening pressure — a strong KRW limits BoK's room to cut rates, which matters for domestic consumption names and housing. Watch the KRW/USD level tomorrow: if the won strengthens past 1,350, BoK will face a policy dilemma between export competitiveness and inflation management.

K-battery Q3 guidance durability

Q2 was the first simultaneous profitable quarter for all three K-battery makers since the EV ramp deceleration. Q3 order books and production guidance from LG Energy, Samsung SDI, and SK On will determine whether the profitability inflection is structural or a one-quarter restocking bounce — the KOSDAQ EV supply chain is positioned on this outcome.

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