S&P 500 (+0.12% to 7,173.91) and Nasdaq (+0.20% to 24 | Nasdaq +0.20%, S&P +0.12% — Korea Open Preview 26/04/28

Hey, Dongchun here.

DONGCHUN'S TAKE

The single most important fact today is that US risk assets ignored Iran headlines, ignored AMD weakness, and pushed both S&P 500 and Nasdaq to fresh record closes right before the most loaded earnings week of 2026. That signals conviction in the AI-CAPEX cycle even as positioning gets stretched. Watch tonight's FOMC tone from a lame-duck Powell and Wednesday's MSFT, GOOGL, META results — those decide whether the rally extends or stalls.

Previous post: Read it →

1. US Session Recap

The S&P 500 closed at 7,173.91 (+0.12%) and the Nasdaq Composite at 24,887.10 (+0.20%), both fresh all-time records. The Dow Jones slipped 0.13% to 49,167.79, and the small-cap Russell 2000 added roughly 0.18%, signaling broad-based risk appetite even with modest large-cap leadership.

The single biggest catalyst was positioning ahead of a heavy earnings week and the FOMC two-day meeting starting April 28. Communication services, financials, and tech led; consumer staples lagged. Micron surged about 5.6% on memory-cycle momentum while AMD fell 3.44% on an analyst downgrade — a clean signal of intra-semiconductor differentiation.

VIX dropped 3.11% to 18.71, well below the 20 risk threshold. WTI crude rose 0.97% to $95.32 on continued Strait of Hormuz disruption, but the dollar index slipped to 98.47, suggesting markets are looking past geopolitical noise toward earnings catalysts.

For Korea, this is a constructive setup — record US closes, weaker dollar (USD/KRW down 0.48% to 1,469.60), and softer VIX should support the KOSPI open. Samsung Electronics and SK Hynix get a direct memory-cycle boost from Micron's surge.

IndexCloseChange
S&P 5007,173.91+0.12%
Nasdaq24,887.10+0.20%
Dow Jones49,167.79-0.13%
Russell 2000—+0.18%

2. Korea Market Snapshot

KOSPI closed yesterday (April 27) at 6,615.03 (+2.15%, all-time record), and KOSDAQ at 1,226.18 (+1.86%). Both indices set new historic highs as foreign and institutional capital flooded into semiconductors.

Foreigners net-bought +1,752 billion KRW on KOSPI, concentrated in Samsung Electronics (005930) and SK Hynix (000660). The signal is clear: this is conviction buying around the HBM/AI memory cycle, not rotational flow. Institutional capital added another +787 billion KRW.

Retail was the lone net seller, taking profits at record highs. The dual-buy from foreigners and institutions tilts the next session bullish if US futures hold and FOMC tone stays neutral.

IndexPrev CloseChangeKey Level
KOSPI6,615.03+2.15%All-time high; resistance 6,650
KOSDAQ1,226.18+1.86%Record high; support 1,200
InvestorKOSPI NetKOSDAQ NetTrend
Foreigners+1,752 B KRWNet buyMulti-day buying
Institutions+787 B KRWMixedSemi-focused
RetailNet sellNet sellProfit-taking at highs

3. Korea Sector Breakdown

The dominant theme is a memory-cycle reacceleration, with Micron +5.6% in the US session reinforcing the same HBM thesis that drove SK Hynix +5.73% in Korea on Monday. Big-tech AI CAPEX expectations remain the macro tide.

Top gainers (Korea, prior session): Semiconductors with SK Hynix (000660) +5.73% and Samsung Electronics (005930) +2.28%, both lifted by foreign conviction in HBM. Autos were second with Hyundai Motor (005380) +2.14% on export tailwinds.

Top laggards: Secondary battery sector with LG Energy Solution (373220) -3.53% on cautious 2026 guidance disclosure. Watch battery-materials peers for follow-through weakness today.

SectorUS SessionKorea StockKorea MoveWatch
SemiconductorsMicron +5.6%, AMD -3.44%Samsung (005930), SK Hynix (000660)+2.28% / +5.73%KODEX Semiconductor
AutosMixedHyundai (005380)+2.14%KRX Auto
Internet▲ Comm servicesNAVER (035420)+0.47%TIGER Internet
Batteries▼ WeakLG Energy (373220)-3.53%TIGER 2차전지

4. Stocks on My Radar

TickerPriceSession %Key Event
BMNR$21.55-2.66%ETH holdings hit world-record 5,078,386 tokens (4.21% of supply); total crypto+cash $13.3B
NVO$41.20+0.07%Updated DKK 15B share buyback program; oral Wegovy outperforming Lilly's Foundayo in early scripts
ZETA$18.09+3.19%Bid into Q1 earnings on April 30; consensus revenue $370M (+39.9% YoY)
ORCL$172.96-0.18%Closed $16B financing for Saline, MI data center; AI CAPEX overhang persists
SMR$12.65+5.77%DOE loan support flagged for first wave of SMRs; HSBC initiated Hold at $13
COIN$196.68-1.55%Bitcoin 2026 conference in Las Vegas (Apr 27–29); BTC hovering near $80K
LAES$2.85-3.39%Q1 revenue $4.1M (+200% YoY); Quantum Vertical Stack launch slated Q3 2026
ASTS$77.20+1.05%Rakuten sold 5.1M shares but still holds 7.2%; BlueBird-8/9/10 launches imminent

BMNR's record ETH stack is a clean fundamental catalyst, but the share price slipped 2.66% as crypto-treasury proxies tracked Bitcoin softness. SMR rallied on US Energy Secretary signaling DOE loans for the first 5–10 SMR projects, with HSBC initiating coverage at $13. ORCL closed a $16B data center financing, but the broader AI-capex digestion theme keeps a lid on the stock.

ASTS shrugged off Rakuten's open-market sale, reflecting steady retail conviction ahead of the BlueBird-8/9/10 launch campaign.

5. Today's Trade Setup

KOSPI is set to open with a constructive bias, supported by US record closes, a softer dollar, and a memory-cycle tailwind from Micron +5.6%. The expected open direction is flat-to-up, targeting a test of 6,650 if foreign flow holds.

The single most important indicator at the 9:00–9:05 KST open is foreign net buy/sell in Samsung Electronics (005930). Samsung opens the foreign-flow tape for the entire KOSPI — a positive print typically translates into broad-based foreign buying across the day, while a sell print signals profit-taking risk into FOMC.

Two sectors to focus on: (1) Semiconductors — Samsung Electronics (005930), SK Hynix (000660), and HBM-supply names like Hanmi Semiconductor (042700); (2) Nuclear/SMR-adjacent Korean plays following the US SMR +5.77% rally on DOE loan signals.

ScenarioTrigger ConditionKOSPI Target
BullForeign net buy in Samsung > +500B KRW at open, Nasdaq futures positive6,650–6,680
NeutralMixed foreign flow, FOMC pre-meeting holding pattern6,580–6,640
BearForeign net sell > 300B KRW, AMD-style selective semi weakness spreads6,500 support test

Base case: KOSPI consolidates 6,580–6,640 ahead of tonight's FOMC and Wednesday's MSFT/GOOGL/META results, with semis holding firm and batteries staying heavy. International readers without KRX access can track the move via EWY (iShares MSCI Korea ETF) or Samsung's GDR.

DONGCHUN'S WRAP

Records are records, but the real test is Powell's last meeting tone and Big Tech AI capex guidance. As long as foreign hands keep buying Korean semis, the trend is your friend.

That's the AM breakdown for April 28. Trade safe.

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