SOX exploded +4.48% to 11,472.75 as AMD's earnings beat extended | Nasdaq +2.02%, S&P +1.46% — Korea Open Preview 26/05/07
Hey, Dongchun here.
The only thing that matters today is that SOX surged +4.48% in a single session as the AMD-led semiconductor thesis extended into day two with no fatigue. This matters because the trifecta of AMD's data-center +57% YoY beat, the US-Iran peace headline triggering a -6.19% WTI plunge, and a 6bp drop in the 10-year yield aligned in one session — the cleanest risk-on macro setup of 2026 so far. Watch tomorrow's Korea open for whether Samsung Electronics and SK Hynix can extend the gap-up into a sustained leg, and whether the 5/7 Korean earnings cluster (Celltrion, Kakao, LG, HD shipbuilders) confirms or breaks the index momentum.
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1. US Session Recap
The S&P 500 closed at 7,365.12 (+1.46%), Nasdaq at 25,838.94 (+2.02%), Dow at 49,910.59 (+1.24%) and Russell 2000 at 2,886.77 (+1.47%) — all four major indices printed fresh all-time highs in the same session. The S&P 500 cleared 7,300 for the first time, and the Nasdaq's +2.02% session ranks among the strongest single-day prints since the AI cycle started.
The single biggest catalyst was a stacked trifecta — AMD's Q1 data-center revenue +57% YoY beat extending into a second-day rally with AMD +17.77%, Super Micro Computer +24.5% on its own beat, Nvidia +5.5% and Intel +4.22%. On top of the chip leg, Axios reported the US and Iran were nearing a one-page agreement to end the two-month war, sending Brent crude -7.26% to $101.89 and WTI -6.19% to $95.94, which dragged the 10-year Treasury yield 6bps lower to 4.36%.
Breadth was wide, not narrow. Russell 2000 +1.47% kept pace with the mega-caps, signaling participation beyond the chip complex. VIX held at 17.39 (+0.06%), well within the risk-on regime, while gold +3.22%, silver +6.56% and copper +4.00% confirmed metals are joining rather than fighting the rally.
The Korea read-through is direct and concentrated. SOX +4.48% feeds straight into Samsung Electronics (005930) and SK Hynix (000660) on HBM and AI memory allocation visibility, while a -7.26% Brent print compresses domestic refining margins for S-Oil and SK Innovation. The metals leg is bullish for Korea Zinc and Korea's industrial-metal exposure.
| Index | Close | Change |
|---|---|---|
| S&P 500 | 7,365.12 | +1.46% |
| Nasdaq | 25,838.94 | +2.02% |
| Dow Jones | 49,910.59 | +1.24% |
| Russell 2000 | 2,886.77 | +1.47% |
2. Korea Market Snapshot
Korea's prior-session reference shows KOSPI at 6,936.99 (+5.12%) and KOSDAQ at 1,213.74 (+1.79%) per the data feed used for this analysis. The KOSPI/KOSDAQ divergence — KOSPI tripling KOSDAQ's gain — points to a pure mega-cap rally driven by foreign concentration into memory leaders.
Foreign investor flow drove the entire session, with concentration into Samsung Electronics (266,000 won, +14.41%) and SK Hynix (1,601,000 won, +10.64%). Both prints align with AMD's data-center beat thesis and Micron's HBM-sold-out-through-2026 reports as the fundamental basis for the rally. Domestic flow (institutions and retail) was net-sell, the textbook foreigners-vs-domestics asymmetry seen during structural re-rating phases.
For Thursday's session, US overnight futures sit at S&P +1.29% and Nasdaq +1.97% — much stronger than the prior overnight setup, supporting a meaningful gap-up. The dominant variable shifts to whether the 5/7 earnings cluster confirms or breaks the momentum.
| Index | Prev Close | Change | Key Level |
|---|---|---|---|
| KOSPI | 6,936.99 | +5.12% | Continuation toward record territory |
| KOSDAQ | 1,213.74 | +1.79% | Lagging mega-cap rotation |
| Investor | KOSPI Flow | KOSDAQ Flow | Trend |
|---|---|---|---|
| Foreigners | Net buy (concentrated) | Net sell | Multi-day mega-buy streak |
| Institutions | Net sell | Mixed | Trimming into rally |
| Retail | Net sell | Net buy | KOSPI profit-taking, KOSDAQ rotation |
3. Korea Sector Breakdown
The dominant theme is AI memory leadership extending from US chip prints into Korean semiconductor mega-caps, plus a metals-complex tailwind running parallel. AMD's data-center +57% YoY beat is no longer a single-session catalyst — it is now a confirmed two-session rally with broad chip-line participation.
Top gaining Korean sectors carry over from the US setup: semiconductors led by Samsung Electronics (005930) +14.41% and SK Hynix (000660) +10.64% on AMD/Micron HBM tailwinds, and metals/mining beneficiaries with copper +4.00% and silver +6.56% feeding into Korea Zinc and Korean industrial-metal exposure. Brokerages remain a record-volume play.
Top lagging Korean sectors point to refining/energy under pressure as WTI -6.19% to $95.94 and Brent -7.26% to $101.89 compress S-Oil and SK Innovation margins, plus internet platforms drifting on Kakao (035720) -1.70% pre-earnings and NAVER (035420) -0.48% sympathy.
| Sector | US Session | Korea Stock | Korea Move | Watch |
|---|---|---|---|---|
| Semiconductors | ▲ SOX +4.48% | Samsung (005930), SK Hynix (000660) | +14.41% / +10.64% | KODEX Semiconductor |
| Metals/Mining | ▲ Silver +6.56%, Copper +4.00% | Korea Zinc (010130) | watching | TIGER Metals |
| Nuclear/SMR | ▲ SMR +13.9% | Doosan Enerbility (034020) | watching | Korean nuclear basket |
| Internet | Pre-earnings drift | Kakao (035720) | -1.70% | 5/7 Q1 print |
| Refining | ▼ WTI -6.19% | S-Oil, SK Innovation | margin pressure | Crack spreads |
4. Stocks on My Radar
| Ticker | Price | Session % | Key Event |
|---|---|---|---|
| BMNR | $22.91 | -0.82% | ETH 5.18M tokens + $13.1B crypto/cash holdings stack intact, mild profit-taking |
| NVO | $45.76 | +1.98% | Q1 revenue +32% YoY (constant FX), Wegovy pill 1.3M scripts (2x consensus), FY26 guide raised |
| ZETA | $17.23 | -3.47% | Software-complex weakness extends, AI-ROI concerns continue to weigh |
| ORCL | $194.03 | +4.68% | Wedbush Outperform with $225 PT initiation, AI-cloud infrastructure thesis |
| SMR | $13.52 | +13.90% | Pre-earnings rally into 5/7 Q1 print at 4 PM ET, AI data-center power demand momentum |
| COIN | $197.96 | +0.11% | Flat into 5/7 Q1 print (consensus EPS $0.36 vs prior $1.94), 14% layoff announcement |
| LAES | $3.32 | +14.09% | Quantum-chip momentum, Q1 revenue +200% YoY visibility, $200M backlog intact |
| ASTS | $70.68 | +10.66% | FCC authorization for 248-satellite constellation + $1B+ contract revenue disclosure rebound |
ORCL +4.68% extended its AI-cloud breakout on Wedbush's $225 price target initiation — with $553B in remaining performance obligations and 84% cloud-infrastructure revenue growth, the AI-infrastructure thesis is hard to fade. NVO +1.98% delivered a clean Q1 beat with the Wegovy pill at 65% of US new prescriptions and FY26 guidance raised to a smaller contraction range.
SMR +13.90% and LAES +14.09% led the speculative-tech leg — SMR on pre-earnings positioning into 5/7 4 PM ET, LAES on quantum-chip momentum and a $200M backlog stretching to 2029. ASTS +10.66% rebounded sharply on the FCC's 248-satellite authorization and the $1B+ contracted revenue disclosure, recovering from the BlueBird-7 launch anomaly drawdown.
5. Earnings Watch
Earnings matter today because the 5/7 Korean cluster — five large-caps reporting on the same day — represents the largest single-day idiosyncratic risk window of the month, landing one session after a major US risk-on print.
| Company | EPS Actual | Rev Actual | Result | After-Hours |
|---|---|---|---|---|
| Novo Nordisk | Q1 rev +32% YoY (96.8B DKK constant FX) | Wegovy pill 2x consensus (1.3M scripts) | Beat + FY26 guide raised | NVO +1.98% |
| AMD (extension) | EPS $1.37 (est $1.27) | $10.3B (+38% YoY) | Data-center +57% YoY | +17.77% follow-through |
| Super Micro | Beat | Strong beat | AI server demand visibility | +24.5% |
The biggest beat was Super Micro Computer at +24.5% on AI server demand visibility, and Novo Nordisk's Wegovy pill print at 2x consensus is the cleanest beat in healthcare. There were no major misses among the headline names.
| Company | Time (ET) | Consensus EPS | Watch For |
|---|---|---|---|
| NuScale Power (SMR) | 4:00 PM | -$0.11 | Commercial module shipment visibility, AI data-center power demand |
| Coinbase (COIN) | After close | $0.36 | Q1 global volume -48% backdrop, subscription/services resilience |
Korea read-through is concentrated. The chip-cycle confirmation directly supports Samsung Electronics and SK Hynix on HBM allocation visibility regardless of the 5/7 Korean cluster outcomes. The Korean cluster itself dominates Friday's tape — shipbuilding super-cycle confirmation (HD Korea Shipbuilding, HD Hyundai Heavy beats) lifts Hanwha Ocean and Samsung Heavy by sympathy, while a Kakao miss drags NAVER and the broader internet complex.
6. Today's Trade Setup
US overnight futures at S&P +1.29%, Nasdaq +1.97% and Dow +1.18% point to a strong gap-up open on KOSPI. The primary driver is SOX +4.48% feeding directly into Samsung Electronics and SK Hynix HBM allocation visibility on top of the AMD beat.
The single most important indicator to watch is foreign net buy in Samsung Electronics (005930) during the 9:00–9:05 AM KST window. After a session where Samsung printed +14.41%, foreign continuation flow is the single cleanest signal for whether the structural re-rating extends — a slowdown there would be the first sign that the move is consolidating rather than extending.
Top sectors to focus on are semiconductors (Samsung Electronics 005930, SK Hynix 000660) on the SOX +4.48% tailwind, and the 5/7 earnings cluster names — Celltrion (068270), Kakao (035720), LG Corp (003550), HD Korea Shipbuilding (009540), HD Hyundai Heavy (329180). The cluster decides whether the sympathy trade extends or fragments by sector.
| Scenario | Trigger Condition | KOSPI Target |
|---|---|---|
| Bull | Nasdaq futures hold +1.5%+, foreign net buy in Samsung > +300B KRW at open, 5/7 cluster earnings beat majority | Fresh record high attempt |
| Neutral | Gap-up opens but foreign buying decelerates, earnings cluster mixed | Gap-up consolidation range |
| Bear | US futures slip, foreign flips net sell, multiple earnings misses | Partial gap-fill pressure |
Base case is a strong gap-up open followed by a wait-and-see consolidation as the 5/7 earnings cluster results land throughout the session. International readers without direct KRX access can track iShares MSCI South Korea ETF (EWY) or the Samsung Electronics GDR for clean exposure.
AMD's first-day shot turned into a second-day artillery barrage across the entire SOX line, and Iran-ceasefire headlines cleared the macro path by smashing oil and yields at once. The next test is whether Korean memory mega-caps can keep climbing on top of a setup this cleanly stacked.
That's the AM breakdown for May 07. Trade safe.
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