[2026.06/01~06/05] Korea Stock Market Weekly Preview | KOSPI Eyes 9,000 as US Jobs Report & Broadcom Earnings Loom
📌 Next Week Outlook Summary
A semiconductor super-rally has pushed the KOSPI to the doorstep of the 9,000 milestone, while the KOSDAQ slumped sharply — leaving an extreme divergence between the two indices. The week of June 1–5 will hinge on Friday's US May jobs report, Broadcom's earnings, and whether capital rotates into the laggard sectors that have been left behind.
Welcome to our preview of the Korean stock market for the week of June 1–5, 2026. It is a full five-session trading week (Monday through Friday) with no market holidays. With large-cap semiconductors driving the KOSPI to fresh record highs, the back half of the week — when key US labor data and big-tech earnings land — is expected to set the direction for global technology shares.
📊 Last Week Market Summary (5/26~5/29)
Last week the fortunes of the KOSPI and KOSDAQ diverged starkly. Powered by the relentless climb of semiconductor heavyweights such as Samsung Electronics and SK hynix, the KOSPI surged +5.02% for the week to 8,476.15 — setting back-to-back record highs and bringing the 9,000 level into view. The KOSDAQ, by contrast, was left behind amid the concentration into large caps, tumbling -9.63% to 1,074.80.
| Index | Week Open | Week High | Week Low | Week Close | Weekly Return | Weekly Volume (만 shares) |
|---|---|---|---|---|---|---|
| KOSPI | 8,070.91 | 8,476.15 | 7,841.01 | 8,476.15 | +5.02% | 254,307.9만 |
| KOSDAQ | 1,189.28 | 1,205.12 | 1,058.13 | 1,074.80 | -9.63% | 424,892.4만 |
Daily Performance
| Date | KOSPI Close | Change | KOSDAQ Close | Change |
|---|---|---|---|---|
| 5/26 | 8,047.51 | +2.55% | 1,172.52 | +0.98% |
| 5/27 | 8,228.70 | +2.25% | 1,133.13 | -3.36% |
| 5/28 | 8,185.29 | -0.53% | 1,104.36 | -2.54% |
| 5/29 | 8,476.15 | +3.55% | 1,074.80 | -2.68% |
The KOSPI drew strong buying from the start of the week and trended steadily higher, jumping +3.55% on Friday (5/29) alone to close at its weekly high of 8,476.15. The KOSDAQ, however, fell on every day except the first, laying bare the shadow cast by the large-cap-concentrated market. The most defining feature of the week was the extreme divergence between the two indices. Tellingly, even on Friday when the KOSPI soared +3.55%, the KOSDAQ dropped -2.68% — a clear sign of one-sided capital flows.
The KOSPI's strength was driven squarely by semiconductor large caps. Riding expectations for AI memory (HBM) demand, Samsung Electronics and SK hynix marked successive record highs, lifting the index past the 8,000 level in a single week and on toward 8,476. Foreign and institutional money concentrated in the top market-cap names propelled the index, while the same liquidity drained out of small- and mid-caps — the 'shadow of concentration' that showed up as the KOSDAQ's plunge. The KOSDAQ swung from as high as 1,205 to as low as 1,058 intraday during the week, ultimately falling three straight sessions after the first day to post a near double-digit weekly loss.
This polarization is more than simple stock-level differentiation; it signals that market liquidity is becoming excessively concentrated in a handful of large caps. The key question for next week, therefore, is whether this concentration deepens further, or whether — alongside profit-taking — capital disperses into neglected sectors in a rotation.
🌙 Global Market Trends
Risk appetite in the US is near a peak. The S&P 500 and NASDAQ both set fresh record highs, and the Dow advanced as well, with all three major indices rising together. An AI- and semiconductor-led global tech rally is directly pulling Korea's chip heavyweights higher.
| Index | Close | Change |
|---|---|---|
| S&P 500 | 7,580.06 | +0.22% |
| NASDAQ | 26,972.62 | +0.20% |
| Dow Jones | 51,032.46 | +0.72% |
The USD/KRW rate stands at 1,507.13, with won weakness above the 1,500 mark persisting. A high exchange rate is a burden on foreign capital flows, but works in favor of the translated earnings of export-heavy large caps such as semiconductors. This is part of what explains the divergence of KOSPI large-cap strength versus KOSDAQ weakness. (※ Crude oil and crypto are excluded from this analysis as valid values were not confirmed in this data collection.)
In sum, the primary driver for Korean equities next week is whether the US tech rally can be sustained. With the S&P 500 and NASDAQ at record highs, risk appetite itself is favorable, but 'altitude risk' has grown in tandem. With AI and semiconductor valuations already largely priced in, the US jobs data and Broadcom earnings due late in the week will determine whether markets find justification for further gains — or a pretext for profit-taking. This is shaping up as a pivot point for global equities as a whole.
🔥 Key Themes to Watch Next Week
1. Semiconductors (HBM / Memory) — Bullish
The 'semiconductor super-rally' led by Samsung Electronics and SK hynix is the core engine behind the KOSPI's record-high run. If US AI/tech strength and Broadcom's earnings momentum carry through, the uptrend could extend. That said, watch for volatility from profit-taking after such a sharp short-term surge.
2. Rotation Candidates (Neglected Sectors) — Watch
With concentration in semiconductors so extreme, brokerages are flagging the possibility of a rotation into non-leading sectors next week. The key is whether beaten-down KOSDAQ and small/mid-caps, along with long-neglected groups such as autos, financials, and biotech, stage a 'catch-up' rebound.
3. KOSDAQ / Small- & Mid-Caps (Oversold) — Caution
The 9.63% weekly plunge has badly dented investor sentiment. If large-cap concentration persists, further weakness is possible, so a selective, defensive approach is warranted until a rotation signal is confirmed.
4. Export Large-Caps (Weak-Won Beneficiaries) — Watch
The high USD/KRW environment above 1,500 is favorable for the translated earnings of export large caps in semiconductors and autos, such as Samsung Electronics and Hyundai Motor. Monitor the direction of the exchange rate alongside shifts in foreign flows.
🎯 Scenario Outlook
| Scenario | Conditions | Expected Path |
|---|---|---|
| Bull | Strong Broadcom earnings + US tech strength, with the May jobs report supporting a soft landing (rate-cut hopes) | Led by semiconductors, the KOSPI breaks above 8,476 and attempts the 9,000 milestone; if rotation into laggards joins in, the KOSDAQ could target a recovery toward 1,100 |
| Neutral | Record-high altitude fatigue crossing with profit-taking on the semiconductor surge | KOSPI consolidates near its highs in the 8,300–8,500 range, with a stock-picking/rotation market as polarization gradually eases |
| Bear | A US jobs shock or disappointing Broadcom results triggers tech profit-taking | The sharply-risen semiconductor heavyweights lead a pullback, testing KOSPI support at 8,000; if high-FX pressure compounds, the KOSDAQ risks breaking below its weekly low of 1,058 |
Overall, with record-high altitude fatigue crossing with profit-taking on the short-term semiconductor surge, a high-level consolidation in the KOSPI 8,300–8,500 range looks most likely. At the same time, there is a strong chance of a stock-picking market in which the polarization between large caps and the KOSDAQ gradually narrows.
📅 Next Week's Economic Schedule
The biggest variables next week are the US May employment report on Friday (6/5) and Broadcom's earnings released the same day. Because the strength of jobs and wage growth directly feeds Fed rate-path expectations, the results could shake rate-cut hopes and tech valuations alike. Below are the major high-impact global events for the week (times in KST).
| Date | Time (KST) | Country | Event | Forecast / Previous |
|---|---|---|---|---|
| 6/1 (Mon) | 23:00 | US | ISM Manufacturing PMI | 53.3 / 52.7 |
| 6/2 (Tue) | 23:00 | UK | BOE Gov Bailey Speaks | - / - |
| 6/3 (Wed) | 10:30 | Australia | GDP q/q | 0.5% / 0.8% |
| 6/3 (Wed) | 17:30 | Japan | BOJ Gov Ueda Speaks | - / - |
| 6/3 (Wed) | 21:15 | US | ADP Non-Farm Employment Change | 116K / 109K |
| 6/3 (Wed) | 23:00 | US | ISM Services PMI | 53.8 / 53.6 |
| 6/4 (Thu) | 14:00 | Australia | RBA Gov Bullock Speaks | - / - |
| 6/5 (Fri) | 21:30 | US | Non-Farm Employment Change | 95K / 115K |
| 6/5 (Fri) | 21:30 | US | Unemployment Rate | 4.3% / 4.3% |
| 6/5 (Fri) | 21:30 | US | Average Hourly Earnings m/m | 0.3% / 0.2% |
| 6/5 (Fri) | 21:30 | Canada | Employment Change / Unemployment Rate | 10.2K · 6.9% / -17.7K · 6.9% |
Beyond these, Chair Powell's remarks on 6/1, US JOLTS job openings, and the euro-zone flash CPI estimate on 6/2 are also factors that could sway direction. On the earnings front, Broadcom's quarterly results — due after the US market close — are seen as the pivotal event for the trajectory of global semiconductor shares.
⚡ Investment Checkpoints
- Attempt at 9,000 vs. profit-taking pressure: The first thing to watch is whether the KOSPI's record-high run continues, or whether profit-taking emerges after the sharp short-term semiconductor surge.
- KOSDAQ support at 1,075: Monitor both the risk of further declines and any signs of a rotation into neglected names.
- 6/5 US jobs report & Broadcom earnings: The biggest variables determining the direction of global semiconductor and tech shares — be wary of excessive chasing and leverage ahead of the events.
- High USD/KRW above 1,500: Watch how a sustained high exchange rate affects foreign capital flows.
- Easing of polarization: Whether the gap between KOSPI large-cap concentration and KOSDAQ weakness narrows is the key criterion for stock-level positioning.
⚠️ Investment Disclaimer
Disclaimer: This post is for informational purposes only and does not constitute investment advice. All investment decisions are the sole responsibility of the investor. Past performance does not guarantee future results. Market conditions can move differently from expectations — especially in the current phase, with indices at record-high territory and severe divergence between them, volatility may be larger than usual. Always verify the latest prices and official schedules directly before trading, and remain mindful of diversification and risk management.
🇰🇷 Korean Version: https://kai-search.tistory.com/manage/posts/
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