US stocks broke a multi-day win streak as the Dow slid 1.13% | Nasdaq -0.19%, S&P -0.41% — Korea Open Preview 26/05/05

Hey, Dongchun here.

DONGCHUN'S TAKE

The single thing that matters today is that geopolitics flipped a record-high tape into a one-day risk-off pivot, with Brent +5.24% and the VIX +7.65%. Watch this signal because oil pushing the 10-year yield up 7 bps to 4.45% restarts the inflation-rerating channel that froze Fed cut expectations earlier this year. Tonight AMD reports after the close — its data-center print sets the next leg for SK Hynix and HBM allocation reads.

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1. US Session Recap

The S&P 500 closed at 7,200.75 (-0.41%), Nasdaq at 25,067.80 (-0.19%), Dow at 48,941.90 (-1.13%), and Russell 2000 at 2,796.00 (-0.60%). After hitting a record above 7,229 in late April, the S&P 500 broke its winning streak as risk-off bid took hold across cyclicals and small caps.

The single biggest catalyst was an escalation in the Middle East. The UAE confirmed it intercepted Iranian missiles for the first time since the recent ceasefire, US frigates exchanged fire near the Strait of Hormuz, and a fire was reported at the Fujairah oil hub. Brent crude jumped 5.24% to $113.84 per barrel, the highest in years.

Market breadth was negative — only the energy sector closed positive among S&P 500's eleven sectors. The Russell 2000 (-0.60%) underperformed Nasdaq (-0.19%), and the VIX spiked 7.65% to 18.29, the largest single-day jump in weeks though still below the 20 panic line.

For Korean investors, the read-through is mixed. SOX -0.57% pressures Samsung Electronics and SK Hynix after yesterday's record foreign buying, while higher Brent prices benefit refining names like S-Oil and SK Innovation. Defense and shipbuilding stand to benefit from the geopolitical premium.

IndexCloseChange
S&P 5007,200.75-0.41%
Nasdaq25,067.80-0.19%
Dow Jones48,941.90-1.13%
Russell 20002,796.00-0.60%

2. Korea Market Snapshot

KOSDAQ printed 1,192.35 (-2.29%), unwinding more than the prior session's +1.79% gain in a single move. KOSPI data was unavailable. The KOSDAQ drop signals that the global risk-off tone hit small-cap and growth names hardest.

Yesterday's foreign inflow of 2.74 trillion KRW was concentrated 97% in electronics, with Samsung Electronics +5.44% and SK Hynix +12.52%. After today's Brent +5.24% spike and US Dow -1.13% close, the question becomes whether that single-day record allocation holds or partially reverses.

Institutional flows were marginal yesterday and retail dumped 4.18 trillion KRW into the rally. The combined pattern argues for foreign concentration as the primary swing factor in the next session.

IndexPrev CloseChangeKey Level
KOSDAQ1,192.35-2.29%1,180 support
InvestorKOSPI Net (5/4)Trend
Foreigners+2,741 B KRWSingle-day record electronics buying
Institutions+102 B KRWMarginal
Retail-4,182 B KRWAggressive profit taking

3. Korea Sector Breakdown

The dominant theme of the US session was a geopolitical risk-off pivot — energy was the only S&P 500 sector that closed green, while technology, financials, and small caps all sold off. Aerospace and defense names extended their 2026 gains.

Korean refiners and shipbuilders benefit directly. SK Innovation (096770) and S-Oil (010950) get a tailwind from Brent at $113.84, while HD Korea Shipbuilding (009540) carries May 7 earnings catalysts plus geopolitical premium.

Korean memory and internet platforms face headwinds. Samsung Electronics (005930) and SK Hynix (000660) face profit-taking pressure after yesterday's foreign-driven rally meets a SOX -0.57% backdrop. NAVER (035420) and Kakao (035720) weakened ahead of Kakao's May 7 earnings.

SectorUS SessionKorea StockCatalyst
Energy▲ Only positive sectorSK Innovation (096770)Brent +5.24%
Defense▲ ITA strengthLIG Nex1, Hanwha AerospaceHormuz tension premium
Semiconductors▼ SOX -0.57%Samsung (005930), SK Hynix (000660)Profit taking after +12% rally
Internet▼ Risk-offNAVER (035420), Kakao (035720)Pre-earnings drift

4. Stocks on My Radar

TickerPriceSession %Key Event
BMNR$22.79+4.16%NYSE main board uplisting, 5.18M ETH ($10.2B) holdings disclosed
NVO$44.39+1.16%Oral Ozempic US launch day (70K+ pharmacies)
ZETA$18.46-0.75%Q1 revenue +49.9% YoY beat, FY26 guidance raised to $1.79B
ORCL$180.29+4.92%Software peer guidance lifts (Atlassian, Twilio)
SMR$12.18+0.33%Q1 earnings May 7 (consensus -$0.11 EPS)
COIN$202.99+6.14%BTC above $80K, CLARITY Act May markup confirmed
LAES$2.97+3.48%Q1 revenue $4.1M (+215% YoY), $200M backlog
ASTS$68.43-3.47%CEO pay disclosure confirms missed satellite milestone

ORCL gained +4.92% as Atlassian raised annual forecast and Twilio beat Q1 revenue, lifting the broader software complex. COIN +6.14% rallied with Bitcoin above $80,000 and confirmed bipartisan CLARITY Act markup for May.

BMNR +4.16% benefited from a triple positive — NYSE main-board uplisting, 5.18M ETH holdings ($10.2B) disclosure, and a buyback authorization expanded from $1B to $4B. Annualized staking revenue is now $297M.

ZETA -0.75% drifted despite Q1 revenue of $396.3M (+49.9% YoY, beating consensus by 7%). FY26 revenue guidance was raised to $1.79B at the midpoint. ASTS -3.47% extended weakness on CEO compensation proxy disclosures confirming the satellite milestone miss tied to BlueBird 7.

5. Earnings Watch

Tonight's AMD print after the close, on the heels of Palantir's clean Q1 beat last night, is the next AI-demand checkpoint with direct read-through to Korean memory.

CompanyEPS EstEPS ActualRev EstRev ActualResultAfter-Hours
Palantir$0.28$0.33$1.54B$1.63BBeat both+1.47%
Zeta Global-$0.06-$0.05$370.5M$396.3MBeat both-

Palantir was the largest beat — Q1 US commercial revenue grew 104% YoY, total revenue +85%, and management raised FY26 guidance to $7.65B-$7.66B (consensus $7.27B). No clean miss in our coverage tonight.

CompanyTime (ET)Consensus EPSWatch For
AMDAfter close$1.27-$1.29Data center revenue, OpenAI deal, MI300X traction
Super Micro (SMCI)After close-Options pricing ±10% move
DisneyPre-market-First quarter under new CEO Josh D'Amaro

For Korea read-through, AMD is the most direct catalyst — its data-center commentary and HBM allocation guidance set tomorrow's open for SK Hynix (000660) and Samsung Electronics (005930). Palantir's beat sustains AI infrastructure spending narrative which supports NAVER cloud and Korean AI server suppliers indirectly.

6. Today's Trade Setup

KOSPI is set to open with a gap-down bias driven by overnight Dow futures at -1.12%, S&P futures at -0.41%, and Nasdaq futures at -0.29%. The primary driver is a Middle East geopolitical pivot rather than a fundamental shock to AI demand.

The single most important indicator to watch is foreign net flow into Samsung Electronics (005930) at the 9:00–9:05 AM KST open. After yesterday's 2.74 trillion KRW foreign concentrated buying in electronics, today's first five minutes of tape will reveal whether that allocation holds or reverses. Samsung flow is the cleanest early read on KOSPI direction because foreigners drove 97% of yesterday's inflow.

Two sectors warrant focus today. First, refining and shipbuilding — SK Innovation (096770), S-Oil (010950), and HD Korea Shipbuilding (009540) — get direct Brent +5.24% tailwind. Second, the semis complex — Samsung Electronics (005930) and SK Hynix (000660) — faces profit-taking risk against an SOX -0.57% backdrop and tonight's AMD earnings.

ScenarioTrigger ConditionKOSPI Target
BullOvernight futures recover above -0.3%, foreign net buy in Samsung > +200B KRW6,950 retest
NeutralFutures hold -0.5%, no fresh oil headlines6,850–6,950 range
BearBrent breaks above $115, foreign net sell > -500B KRW6,800 support test

Base case is a modest gap down with sector rotation favoring energy and defense over semis and platforms. International readers can track the iShares MSCI South Korea ETF (EWY) or Samsung Electronics GDR for a clean read.

DONGCHUN'S WRAP

Yesterday's 2.74 trillion KRW foreign inflow into Korean semis met today's geopolitical wall — whether the same money holds the same names is the only test that matters this morning.

That's the AM breakdown for May 05. Trade safe.

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