Broadcom -15% Despite Record Earnings, Dow +874pt to Record — Semis-to-Financials Exodus
Hey, Dongchun here.
KOSPI and KOSDAQ open on June 05, 2026 after US markets closed with Nasdaq -0.09% and S&P 500 +0.41%. Here is the Korean stock market preview for foreign investors.
The single most important fact today is that Broadcom fell ~15% despite record earnings, dragging SOX -2.15% while the Dow hit an all-time high. Why it matters: the market punished an AI revenue guide of $16B versus a $17.2B expectation, proving valuations now outrun even record results, and capital rotated into Healthcare and Financials. Watch tonight's US May jobs report — it decides whether this rotation hardens into a trend or reverses.
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1. US Market Close: Impact on Korean Stocks
The Dow Jones surged +1.73% to a record 51,561.93 on June 4, jumping 874.86 points, while the Nasdaq slipped -0.09% to 26,830.96. The S&P 500 added +0.41% to 7,584.31 and the Russell 2000 rose +1.45% to 2,935.33. The split tape showed leadership broadening out of mega-cap tech.
The single biggest catalyst was Broadcom. Despite record fiscal Q2 revenue of $22.2 billion (+48% YoY) and AI semiconductor revenue of $10.8 billion (+143% YoY), the stock fell roughly 15% because its next-quarter AI revenue target of $16 billion undershot the ~$17.2 billion Wall Street expected.
Breadth was broad, not narrow. Eight of eleven S&P 500 sectors advanced, with Healthcare (~+2.9%) and Financials (~+2.3%) leading and UnitedHealth up over 5%. VIX fell -4.11% to 15.40, signaling rotation rather than fear, even as SOX dropped -2.15%.
The direct Korea implication is mixed. The Broadcom-driven AI profit-taking pressures Samsung Electronics and SK Hynix sentiment, but the non-tech strength offers an offsetting bid to Korean financials and defensives.
| Index | Close | Change |
|---|---|---|
| S&P 500 | 7,584.31 | +0.41% |
| Nasdaq | 26,830.96 | -0.09% |
| Dow Jones | 51,561.93 | +1.73% |
| Russell 2000 | 2,935.33 | +1.45% |
2. KOSPI and KOSDAQ Today: Korean Market Opening Outlook
KOSPI closed +0.15% at 8,801.49, edging above 8,800 for the first time on a closing basis as non-tech strength held the index near record territory. KOSDAQ moved the opposite way, falling -2.29% to 1,026.03 as AI and growth small-caps gave back gains. Within one market, large-cap resilience and growth-stock weakness decoupled.
Flow stayed defensive at the index level. KOSPI printed a fresh closing high even as bellwether large-caps sagged, meaning financials and defensives carried the tape while chips and growth names weighed. Foreign direction at the open remains the key swing factor for the next session.
The combined pattern mirrors Wall Street's rotation almost exactly — money favoring non-tech over AI-linked semiconductors. Whether tonight's US jobs report cools or reignites rate-cut hopes will set the tone for foreign flows.
| Index | Prev Close | Change | Key Level |
|---|---|---|---|
| KOSPI | 8,801.49 | +0.15% | resistance 8,850 |
| KOSDAQ | 1,026.03 | -2.29% | support 1,020 |
| Investor | KOSPI Net | KOSDAQ Net | Trend |
|---|---|---|---|
| Foreigners | Net selling bias | Net selling bias | Streak watch at open |
| Institutions | Index support | Mixed | Dip absorber |
| Retail | Defensive buying | Net buying | Large-cap defender |
3. Korean Sector Breakdown: What is Moving Today
The dominant theme was a US-led rotation out of AI semiconductors into Healthcare and Financials, transmitted straight into Korea. The Broadcom guidance miss set the tone, punishing high-valuation chip names while non-tech caught the bid.
The laggards in Korea were chips and growth. Samsung Electronics (005930) -2.50% and SK Hynix (000660) -2.63% absorbed the Broadcom-driven profit-taking, while KOSDAQ growth names dropped the index -2.29%. NAVER (035420) -4.63% and LG Energy Solution (373220) -4.63% also fell sharply.
The relative outperformers were the index-level non-tech segments that kept KOSPI near its record. Watch whether financials and defensives keep absorbing the chip weakness tomorrow.
| Sector | US Session | Korea Stock | Korea Move | Watch |
|---|---|---|---|---|
| Semiconductors | ▼ SOX -2.15% | Samsung (005930), SK Hynix (000660) | -2.50% / -2.63% | KODEX Semiconductor |
| Internet | ▼ Nasdaq -0.09% | NAVER (035420) | -4.63% | growth de-rating |
| 2차전지 | ▼ Weak | LG Energy (373220) | -4.63% | TIGER 2차전지 |
| Healthcare/Financials | ▲ +2~3% | Korea defensives | index support | rotation read-through |
4. Korean Stocks on My Radar
| Ticker | Price | Session % | Key Event |
|---|---|---|---|
| BMNR | $17.89 | +5.86% | ETH-treasury play rebounds with crypto; volume 41.27M vs 31.77M average |
| SMCI | $46.90 | -1.10% | Eased after a prior ~+10% pop on Taiwan anti-diversion cooperation; clipped by semi selloff |
| ASTS | $107.29 | -0.41% | Reaffirmed 2026 guidance; three BlueBird Falcon 9 launches mid-June; one fair-value read $170 |
| POET | $15.48 | +0.62% | AI optical-interconnect momentum intact after a sharp run |
| RBLX | $43.35 | -0.76% | Tagged 45 resistance then faded; Roth Capital cut target to $65 from $84, keeps Buy |
BMNR +5.86% led, recovering with a crypto bounce as its ETH-treasury exposure rebounded on above-average volume. ASTS -0.41% held nearly flat after reaffirming full-year 2026 revenue guidance and keeping its mid-June BlueBird Falcon 9 launch schedule on track.
POET +0.62% stayed firm as the AI optical-interconnect theme held up against the semi selloff. SMCI -1.10% and RBLX -0.76% eased modestly, with Broadcom-driven chip weakness and profit-taking weighing on high-beta names.
5. Earnings Watch
Earnings mattered today because a single report — Broadcom — dictated the entire session's rotation.
| Company | EPS Est | EPS Actual | Rev Est | Rev Actual | Result | After-Hours |
|---|---|---|---|---|---|---|
| Broadcom | $2.40 | $2.44 | $22.27B | $22.19B | EPS beat, slight rev miss, AI guide light | -15% |
Broadcom's results were strong — non-GAAP EPS of $2.44 topped the $2.40 consensus and revenue rose 48% to a record $22.2 billion, with AI chip revenue up 143% to $10.8 billion. The miss was expectations, not fundamentals: the next-quarter AI revenue target of $16 billion fell short of the ~$17.2 billion the Street wanted, and the stock fell ~15%.
Tonight's earnings calendar is light, with the US May jobs report at 8:30 AM ET dominating instead of corporate results.
The Korea read-through runs through memory. Broadcom-driven AI profit-taking pressures Samsung Electronics and SK Hynix near-term sentiment, but the guidance shortfall reflects elevated expectations rather than weakening demand — a distinction worth separating from the memory super-cycle thesis.
6. How to Trade KOSPI Today: Setup and Levels
KOSPI's next session sets up flat-to-firm near its fresh record above 8,800, driven by US non-tech strength offsetting chip weakness. Overnight futures echo the split — Dow futures +1.68% versus Nasdaq futures -1.08% — implying a soft semiconductor gap but a supported index.
The single most important indicator is foreigners' net buy/sell in Samsung Electronics (005930) at the 9:00–9:05 AM KST open. Samsung is the heaviest KOSPI constituent, so its foreign flow typically leads index direction; a turn to net buying would confirm the Broadcom shock is one-off, while continued selling signals the AI de-rating is spreading.
Two sectors to focus on: semiconductors via Samsung Electronics (005930) and SK Hynix (000660) for any SOX read-through, and financials/defensives as the rotation beneficiaries that held the index at its record.
| Scenario | Trigger Condition | KOSPI Target |
|---|---|---|
| Bull | Solid-not-hot jobs report, foreign net buy in Samsung, USD/KRW holds 1,530 | Tests 8,850 |
| Neutral | Non-tech strength offsets chip weakness, pre-data caution | 8,700–8,850 range |
| Bear | Jobs surprise pushes back rate cuts, SOX extends loss, USD/KRW breaks 1,540 | Tests 8,650 support |
Base case: KOSPI holds the 8,700–8,850 lane just under fresh highs, with the Samsung foreign-flow signal and tonight's US payrolls as the two binary inputs. International readers without KRX access can track Korea exposure via EWY (iShares MSCI Korea ETF) or the Samsung Electronics GDR.
On the day a record-earnings chipmaker collapsed, the market reminded everyone it trades expectations, not results. A record Dow and a sinking SOX in one tape is the whole story — let tonight's jobs print settle it.
So — which way does Korea swing at the open today?
That's the AM breakdown for June 05, 2026. Trade safe.
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