Broad Rally: KOSPI +5.12%, KOSDAQ +1.79% — Korea Close & Tomorrow Outlook 26/05/04

Hey, Dongchun here.

Here is how the Korean market closed today.

DONGCHUN'S TAKE

The single thing that defines today is foreign 2.74 trillion KRW in concentrated semiconductor buying — SK Hynix +12.52% breached the 1 quadrillion KRW market cap line. Watch this signal because Nvidia's accelerated CPO timeline has reset the global memory and optical interconnect cycle. Tonight Palantir earnings will set the tone, and tomorrow morning we want to see whether foreign flows persist after a single-day +5% surge.

Previous post: Read it →

1. Korea Market Close

KOSPI closed at 6,936.99, up 338.12 points or +5.12%, while KOSDAQ rose 1.79% to 1,213.74. The intraday high pushed near 6,863 — a fresh 52-week peak — leaving the index just shy of the 7,000 milestone.

The single biggest driver was foreign inflows worth 2.74 trillion KRW, with virtually all of it routed into electronics. Nvidia's decision to bring forward its co-packaged optics (CPO) roadmap by five years reset the global memory and optical interconnect cycle, making Korean semiconductor names the biggest beneficiary.

Today's rally was narrow rather than broad — semiconductors carried the entire index. NAVER and Kakao closed slightly negative as profit takers rotated out of platforms. With the VIX at 17.36, risk appetite remains intact going into the US session.

IndexCloseChangeVolume
KOSPI6,936.99+5.12%Heavy turnover led by SK Hynix, Samsung
KOSDAQ1,213.74+1.79%Moderate, semis-heavy

2. Foreign Flow Analysis

Foreign investors net bought 2.74 trillion KRW on KOSPI, with 2.67 trillion KRW concentrated in the electronics sector alone. Samsung Electronics +5.44% and SK Hynix +12.52% absorbed the bulk of the inflow — a clear signal that global money is rerating Korean memory exposure on the back of HBM and CPO themes.

Institutions added a modest 102 billion KRW. Retail investors were the primary sellers, dumping 4.18 trillion KRW in profit taking after the index reached fresh highs.

The flow pattern — heavy foreign buying versus heavy retail selling — is consistent with a top-down global allocation shift rather than a domestic momentum chase. With Nasdaq futures +0.37% overnight, the leading indicator favors continuation, though tonight's Palantir earnings is the swing factor.

InvestorKOSPI NetKOSDAQ NetTrend
Foreigners+2,741 B KRWn/aSingle-day record buying in electronics
Institutions+102 B KRWn/aMarginal long bias
Retail-4,182 B KRWn/aAggressive profit taking

3. Sector Breakdown

Semiconductors dominated the session as the only theme that mattered. The semis and semi equipment sub-index rallied +5.82%, fueled by Nvidia's accelerated CPO roadmap and continued HBM tightness.

The two leading sectors were semiconductors — SK Hynix (000660) +12.52% breaking above 1.44M KRW with a market cap above 1 quadrillion KRW, and Samsung Electronics (005930) +5.44% reclaiming 232,500 KRW. Optical communication names rallied alongside on the CPO read-through.

The two laggards were internet platforms — NAVER (035420) -0.95% and Kakao (035720) -0.42% — both pressured by rotation out of growth ex-semis. Autos and batteries underperformed the index despite positive prints from Hyundai (+1.51%) and LG Energy Solution (+2.50%).

SectorDirectionKey StockChangeReason
Semiconductors▲ StrongSK Hynix (000660)+12.52%Nvidia CPO acceleration, HBM cycle
Semiconductors▲ StrongSamsung Electronics (005930)+5.44%Foreign concentrated buying
Internet Platform▼ WeakNAVER (035420)-0.95%Rotation out of platforms
Internet Platform▼ WeakKakao (035720)-0.42%Pre-earnings drift, weak guidance fears

4. Stocks on My Radar

TickerPriceSession %Key Event
BMNR$21.88+2.24%Ethereum treasury strategy, 6-month +612% momentum
NVO$43.88+3.93%Oral Ozempic US launch day
ZETA$18.60+0.98%Quiet drift
ORCL$171.83+6.47%Pentagon AI deal + Bloom Energy 2.8GW expansion
SMR$12.14-2.57%ENTRA1 $495M payment overhang and class action
COIN$191.25+1.85%Bitcoin tracking, no fresh catalyst
LAES$2.87-1.03%Pre-AGM (May 7) drift
ASTS$70.89-4.07%Continued BlueBird 7 satellite loss fallout

ORCL led the session up +6.47% as the Department of War announced an eight-firm AI integration partnership and Oracle expanded its Bloom Energy fuel-cell deployment to 2.8GW for AI data centers.

NVO climbed +3.93% on the launch of oral Ozempic across more than 70,000 US pharmacies — the first FDA-approved oral GLP-1 for type 2 diabetes. Q1 earnings drop May 6.

SMR slipped -2.57% on overhang from a $495M ENTRA1 payment disclosure, a securities class action, and Citi's reaffirmed Sell rating with a price target cut to $9.

ASTS fell -4.07% as the BlueBird 7 satellite was deemed lost after Blue Origin delivered it to the wrong altitude, despite the recent FCC approval for a 248-satellite constellation.

5. Earnings Watch

Korean Q1 earnings season hits next week, with Celltrion, Kakao, KT, LG Corp, HD KSOE and HD Hyundai Heavy all reporting May 7, followed by SK Telecom (May 11), KEPCO and SK Innovation (May 13).

CompanyReport DateEPS Consensus (KRW)Revenue Consensus
Celltrion2026-05-071,0371.12T KRW
Kakao2026-05-07357.652.01T KRW
KT2026-05-071,3916.77T KRW
LG Corp2026-05-072,9731.95T KRW
HD KSOE2026-05-0710,6197.96T KRW
HD Hyundai Heavy2026-05-077,1035.59T KRW
SK Telecom2026-05-111,2664.42T KRW
KEPCO2026-05-133,74324.73T KRW
SK Innovation2026-05-132,32020.84T KRW

Shipbuilding heavyweights HD KSOE and HD Hyundai Heavy carry the highest absolute EPS expectations, reflecting a strong order backlog cycle. Kakao closed -0.42% today and remains the most sensitive print given pre-earnings weakness.

For Korea read-through tomorrow, the most relevant near-term US earnings are Palantir (tonight) for AI demand sentiment, AMD (May 5 close) for HBM allocation reads to SK Hynix, and Super Micro (May 5 close) for AI server momentum.

6. Tomorrow's Korea Open

Nasdaq futures sit at 27,937.75 (+0.37%) and S&P 500 futures at 7,271.75 (+0.19%) heading into the Asia open. The setup implies a small gap up for KOSPI, though after a single-day +5.12% surge, profit taking is the primary risk to fade the gap.

Palantir reports tonight after the close — consensus EPS $0.28 (+115% YoY) on revenue of $1.54B (+74% YoY). A clean beat would extend AI momentum into Korean semis. AMD reports May 5 after close (consensus EPS $1.29, revenue $9.89B), which directly impacts SK Hynix (000660) HBM allocation reads, and Super Micro reports the same day.

Disney reports May 5 pre-market under new CEO Josh D'Amaro.

NY Fed President Williams speaks May 4. The week's macro pipeline is dense: ISM Services and JOLTS on May 5, ADP on May 6, NFP on May 8. VIX at 17.36 keeps the risk-on tape intact for now.

ScenarioTrigger ConditionKOSPI Target
BullNasdaq futures hold +0.3%+, Palantir beats, foreign net buy > +500B KRW7,000 breakout attempt
NeutralFutures flat, mixed Palantir print6,900–6,980 range
BearPalantir misses, Nasdaq futures fall below -0.5%, foreign outflow6,820 support test

Base case: KOSPI opens marginally higher and consolidates near 6,950 as profit taking offsets continued foreign demand. International readers without KRX access can track Samsung Electronics GDR or the iShares MSCI South Korea ETF (EWY) for a clean read on tomorrow's session.

DONGCHUN'S WRAP

Foreign 2.74 trillion KRW in one sector in one day is not noise — the 7,000 KOSPI level is now a question of whether tomorrow's tape confirms today.

That's the PM breakdown for May 04. Trade safe.

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