GDP Beat, Chip Surge Lift KOSPI

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GDP Beat, Chip Surge Lift KOSPI

105.40 Consumer Confidence1 GDP Growth3.40 GDP Growth Year-over-Year78 Business Confidence

KOSPI5,638.34+3.09%

KOSDAQ743.83+2.29%

USD/KRW1,342.53+1.34%

Samsung241,000.00+8.56%

Market Snapshot

Asset	Level	Change
KOSPI	5,638.34	+3.09%
KOSDAQ	743.83	+2.29%
USD/KRW	1,342.53	+1.34%
Samsung	241,000.00	+8.56%
SK Hynix	1,470,000.00	+9.62%
Brent Crude	110.44	-3.02%
Gold	4,081.20	+0.16%
Bitcoin	81,315.65	+0.63%
Korea 3Y Govt Yield	3.76%	-3 bp
Korea 10Y Govt Yield	4.03%	-4 bp

Prior Economic Events

Data	Prior	Cons	Actual
Consumer Confidence Index	106.60	-	105.40
GDP Growth Quarter-over-Quarter Advance Estimate	0.60	0.70	1
GDP Growth Year-over-Year Advance Estimate	3.70	3	3.40
Business Confidence Index	79	-	78

Today's Economic Events

Data	Prior	Cons	Time

Saturday (2026-10-31)
Exports Year-over-Year	83.70	-	20:00

Q3 GDP advanced 1.0% q/q and 3.4% y/y, well above consensus, driven by semiconductor exports and capex.
KOSPI jumped 3.09% to 5,638.34 as SK Hynix surged 9.62% on record AI-driven earnings; Samsung gained 8.56%.
Won weakened 1.34% to 1,342.53/USD ahead of the Fed; BoK flags financial-stability risks from debt-fueled AI capex.

Yesterday's Recap

South Korea's Q3 advance GDP printed at 1.0% q/q versus 0.7% consensus and 0.6% prior, while y/y growth came in at 3.4% against a 3.0% consensus and 3.7% prior — a strong beat powered by semiconductor exports and investment. Consumer confidence slipped to 105.4 from 106.6, and the business confidence index eased to 78 from 79, suggesting sentiment has not kept pace with hard activity data. Equities rallied hard on the AI chip cycle: the KOSPI closed at 5,638.34 (+3.09%) and the KOSDAQ at 743.83 (+2.29%), with SK Hynix up 9.62% and Samsung up 8.56% after SK Hynix reported quarterly operating profit up roughly 630% on-year.

Rates moved lower, with the 3-year yield down 3 bp to 3.76% and the 10-year down 4 bp to 4.03%. The won weakened sharply, USD/KRW rising 1.34% to 1,342.53, as dollar strength ahead of the FOMC weighed on the currency despite the growth beat. Brent crude fell 3.02% to $110.44, a modest terms-of-trade positive for Korea's energy-import-heavy economy.

The Day Ahead

The domestic calendar is light, with no top-tier Korea releases scheduled for today or tomorrow. The next scheduled Korean data point is October exports (y/y), due Saturday 31 October at 20:00 ET, with the prior reading at 83.7% — a print that will be scrutinized for confirmation that the chip-led export boom is carrying into Q4. Markets will instead take direction from the Fed decision and accompanying guidance, given the won's sensitivity to US rate differentials.

With the BoK in a hold stance at 3.00% and the next MPC on 26 November, there are no domestic policy events to trade. Flows will likely stay concentrated in semiconductor names following SK Hynix's results, with positioning risk around whether the AI capex narrative holds.

Other Economic Notes

The Q3 GDP composition reinforces Korea's dependence on the AI capex cycle, with chip exports and related investment doing the heavy lifting while domestic demand indicators — consumer and business confidence — softened. The BoK has warned that exports could fall by up to $100 billion in a downside scenario, underscoring concentration risk in the semiconductor complex. ↓ p.2

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Other Economic Notes (continued)

Separately, BoK analysis suggests Korea needs roughly KRW 840 trillion of investment in energy supply infrastructure, a multi-year capex theme with inflation and fiscal implications. Carbon-neutrality policy costs are estimated to shave 0.06–0.07 percentage points off annual growth through 2060, a slow-burn drag rather than a near-term market factor. September CPI at 2.88% remains above the 2% target, keeping the BoK cautious on easing.

Global Macro News

The Federal Reserve is widely expected to skip a rate move despite elevated inflation, a stance that keeps US yields elevated and pressures rate-sensitive EM currencies including the won. Dollar strength ahead of the FOMC has already pushed USD/KRW to 1,342.53, and further greenback appreciation would tighten Korean financial conditions. The global AI infrastructure buildout remains the dominant swing factor for Korean equities, with Goldman Sachs reportedly staying bullish on Korean memory names even as the BoK flags debt-financed AI expansion as a financial-stability concern.

Brent at $110.44 keeps imported inflation risks alive for Korea, though the 3% daily drop offers marginal relief. Thai assets held steady after a rate hold, a reminder that regional central banks are largely in wait-and-see mode. Global bond yields and chip-sector earnings momentum will jointly determine whether the KOSPI's surge extends.

Continuation

BoK Watch

The BoK held the base rate at 3.00% at its 22 October decision, and the next MPC meeting is set for 26 November. The hold reflects a committee balancing GDP strength against CPI at 2.88%, still above target, and a won that has weakened past 1,340. The Bank has explicitly flagged financial-stability concerns around AI's debt-fueled expansion, suggesting it is watching credit growth in the tech-capex complex rather than rushing to tighten.

Its warning that exports could drop by up to $100 billion in a downside scenario signals a cautious growth outlook despite the Q3 beat, and argues against reading the GDP print as a trigger for near-term hikes. With the committee having voted to hold, markets should expect an extended pause absent a CPI surprise or disorderly won move. For rates, the hold plus soft confidence data supports the front-end rally (3-year at 3.76%); for the won, the BoK's stability focus limits tolerance for further weakness toward 1,350.

Korea Macro Daily(Beta Mode)