KOSPI Up, KOSDAQ Lags: KOSPI +4.32%, KOSDAQ -0.03% — Korea Close & Tomorrow Outlook 26/05/11
Hey, Dongchun here.
Here is how the Korean market closed today.
The only thing that matters today is that KOSPI printed a new record at 7,822 even as foreigners dumped roughly 3 trillion KRW. Retail and institutions absorbed the entire foreign block, with all the upside concentrated in two semiconductor names while KOSDAQ went nowhere. Watch tonight's US tape — if Nasdaq futures stay flat or red, expect profit-taking pressure at the open, and the SK Hynix/Samsung response will tell you whether the rally still has fuel.
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1. Korea Market Close
KOSPI closed at 7,822.24, up +4.32% (+324.24pt), printing the first-ever close above 7,800 and a fresh all-time high. KOSDAQ finished flat at 1,207.34 (-0.03%), a striking divergence that signals this rally was a mega-cap event, not breadth.
The single biggest driver was the spillover from a +5.51% SOX move overnight, which detonated Samsung Electronics (+6.33%) and SK Hynix (+11.51%). Apple's reported chip-supply tie-up with Intel and AMD's earnings reinforced the AI-memory thesis, while foreign sellers used a weaker KRW (1,471) to take profits.
Market breadth was narrow. Two semiconductor heavyweights accounted for the bulk of index points while internet platforms (NAVER, Kakao) sold off and KOSDAQ underperformed. VIX printed 18.20, signaling no broad fear regime — yet its +5.88% pop hints at fresh hedging demand.
| Index | Close | Change | Note |
|---|---|---|---|
| KOSPI | 7,822.24 | +4.32% | All-time high |
| KOSDAQ | 1,207.34 | -0.03% | Flat |
2. Foreign Flow Analysis
Foreigners net-sold roughly 3 trillion KRW into the afternoon, marking a third straight session of outflows. Retail bought roughly 2 trillion KRW and institutions added roughly 2 trillion KRW more, fully absorbing the foreign block. The flow signature is classic top-tick distribution: foreign capital walked out as the index hit records.
Institutions concentrated buying in semiconductors alongside retail, which is why two chip names did all the lifting. The KOSDAQ saw foreign and institutional selling together, explaining the index's flat close.
If the foreign-sell streak stretches into a fourth session tomorrow, the index will need even heavier domestic absorption to hold the 7,800 line. US overnight futures are the leading tell — slightly negative as of writing, which complicates the absorption math.
| Investor | KOSPI Net | Trend |
|---|---|---|
| Foreigners | ~-3,000 B KRW | 3-day selling streak |
| Institutions | ~+2,000 B KRW | Buying semis |
| Retail | ~+2,000 B KRW | Aggressive dip-absorber |
3. Sector Breakdown
Today's session was a pure semiconductor story imported from Wall Street. Apple-Intel chip-supply chatter, AMD's beat, and a 22-of-23-session SOX winning run combined into the strongest single-sector tape Korea has seen this year.
The two top sectors were semiconductors and autos. Samsung Electronics (005930) at +6.33% and SK Hynix (000660) at +11.51% led semis, while Hyundai Motor (005380) at +5.38% rode the weaker KRW story.
The laggards were internet/platforms and batteries. NAVER (035420) closed -1.63% and Kakao (035720) at -2.83%, while LG Energy Solution (373220) slipped -1.78% as battery sentiment stayed soft.
| Sector | Direction | Key Stock | Change | Reason |
|---|---|---|---|---|
| Semiconductors | ▲ Strong | Samsung (005930) | +6.33% | SOX +5.51% spillover |
| Semiconductors | ▲ Strong | SK Hynix (000660) | +11.51% | HBM/AI memory thesis |
| Autos | ▲ Strong | Hyundai (005380) | +5.38% | Weaker KRW tailwind |
| Internet | ▼ Weak | NAVER (035420) | -1.63% | Rotation out of platforms |
| Batteries | ▼ Weak | LG Energy (373220) | -1.78% | Soft sentiment |
4. Stocks on My Radar
| Ticker | Price | Session % | Key Event |
|---|---|---|---|
| BMNR | $22.17 | +0.77% | $4B buyback authorization remains active |
| NVO | $46.07 | +0.59% | Wegovy pill nearly doubled Q1 consensus |
| ZETA | $17.14 | -0.81% | Q1 rev $396M beat $370M est |
| ORCL | $195.95 | +0.70% | RPO at $523B, +438% YoY |
| SMR | $12.55 | -0.24% | DOE loan signal supports nuclear thesis |
| COIN | $201.16 | +4.25% | Needham keeps $220 PT vs Barclays $107 |
| LAES | $2.92 | -4.26% | Post-AGM profit-taking after May 7 |
| ASTS | $75.05 | +14.84% | Q1 update call tonight 5pm ET |
BMNR held strong despite a tight range; the quadrupled buyback ($1B→$4B) plus 4.8M ETH treasury holding keeps the structural bid intact. NVO crawled back as Wegovy oral pulled in DKK 2.26B versus DKK 1.16B consensus in its first full US quarter.
ORCL's $523B RPO underscores how AI-cloud backlog is reshaping the multiple. SMR holds the 5-year DOE loan narrative even after a small daily slip. COIN rebounded +4.25% despite a $394M Q1 net loss — analyst views remain split.
LAES gave back gains as the May 7 AGM event passed; the 200% YoY Q1 revenue jump stays intact as a fundamental anchor. ASTS exploded +14.84% into tonight's earnings call — FCC NGSO authorization expansion and a mid-June BlueBird launch are the catalysts in focus.
5. Earnings Watch
Tonight's tape is light for direct Korea read-through, but the calendar this week stays active. Korean reporting kicks off tomorrow with KT.
| Company | Date | EPS Est (KRW) | Revenue Est |
|---|---|---|---|
| KT | 2026-05-12 | 1,391 | 6.77T KRW |
| KEPCO | 2026-05-13 | 3,743 | 24.73T KRW |
| SK Innovation | 2026-05-13 | 2,320 | 20.84T KRW |
| SK | 2026-05-21 | 11,019 | 30.86T KRW |
The biggest read-throughs come on May 13. KEPCO's print will reset the utility tape, while SK Innovation reports into a backdrop of WTI +3.80% to $99/bbl — refining margins and oil-price translation are the variables to watch.
For Korean memory exposure (Samsung, SK Hynix), the dominant earnings event remains Nvidia on May 20 — until then, today's SOX-led rally sets the tone for tomorrow's open.
6. Tomorrow's Korea Open
US overnight futures are slightly red: Nasdaq -0.12%, S&P 500 -0.10%, Dow -0.11%. After the cash session's +1.71% Nasdaq print, this looks like normal profit-taking rather than a regime change. For KOSPI tomorrow, the implication is gap-up exhaustion risk rather than gap-down — opening levels may try to extend, but absorption matters.
After-hours focus is ASTS (Q1 update at 5pm ET). No direct Korean read-through, but the broader risk-on tone matters for Samsung Electronics (005930) and SK Hynix (000660) at the open. The May 20 Nvidia earnings remains the dominant medium-term catalyst for Korean memory exposure.
Macro watch tonight includes any Fed speaker commentary; the next FOMC follows April 29's 3.50–3.75% hold. VIX at 18.20 keeps the risk regime constructive, but the +5.88% daily jump warrants attention — hedging demand is rebuilding even at low absolute levels.
| Scenario | Trigger Condition | KOSPI Target |
|---|---|---|
| Bull | Nasdaq futures recover above flat, foreign selling slows below 1T KRW | Retest 7,900 |
| Neutral | Futures flat, foreign selling continues at similar pace | 7,750–7,850 range |
| Bear | Nasdaq futures break below -0.5%, foreign outflow accelerates | Test 7,700 support |
Base case for tomorrow's Korea session is sideways consolidation around 7,800 with intraday profit-taking pressure on Samsung/SK Hynix. Readers without direct KRX access can track exposure via EWY (iShares MSCI South Korea) or the Samsung Electronics GDR.
Foreigners sold the top, locals bought the dream — the question for tomorrow is whose conviction is real.
So — where does this leave us going into tomorrow?
That's the PM breakdown for May 11. Trade safe.
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