October 5, 2026 KOSPI Market Brief

★ The jobs miss killed the October hike. Payrolls +29k (vs. +84k), unemployment 4.2% (vs. 4.1%), hourly wages +0.1%. CME odds of an October hike: 17–22% (82.8% hold). December hike odds stayed above 75% (CME, one report).
★ The 10-year still closed higher at 5.28%. Down about 13bp right after the data, then a full reversal to +5bp. On 10/1 it touched 5.342%, the highest since April 2002, before settling near 5.24%. Up roughly 11bp on the week (about 5.17% on 9/25).
Chips led two days running. The Philadelphia Semiconductor Index (SOX) closed at 13,082.0, roughly +3.7% from 12,616.00 on 9/30, versus about +1.2% for the Nasdaq. Micron rose 3% on 10/1.
The G7 pushed oil down; Hormuz held it up. A G7 deal to release 100 million barrels of oil and diesel over four months sent WTI to $91.11 (−1.90%) and Brent to $102.25 (briefly below $100; −1.5% on the week). Over the weekend Iran said the Strait stays closed until Washington accepts its seven-day plan.
Seoul reclaimed 7,000 before the break: KOSPI 7,003.74 (+0.46%) on 10/2. Foreign investors were net sellers for a fifth straight session, but the size shrank from −₩3.2 trillion to −₩0.14 trillion. Tuesday's question is simple: does the foreign selling stop?

This is Mr. Can. Here is the Oct 5, 2026 brief ahead of the Korean market open.

TL;DR — Jobs miss kills October hike; long yields hold

Key Story — Three soft reports, no relief for the 10-year

Korea Variable — Back above 7,000, foreign selling fading

Macro Backdrop — Reserves out, Strait still shut

Checkpoints — Four things to watch before Tuesday

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Written: 2026-10-05 08:09 KST (Vancouver 10/4 16:09 PDT)
Basis: US regular-session closes for Thu 10/1 and Fri 10/2 + US September jobs report (10/2, 8:30 a.m. ET) + oil futures settlements on 10/2 + Seoul closes for 10/1 and 10/2 + weekend news through Sunday 10/4

🟢 Scheduled 16:00 PDT, started 16:02 PDT. On time.
🟡 Korean markets are closed today (10/5). National Foundation Day (Oct 3) fell on a Saturday, so Monday is the substitute holiday. Trading resumes Tuesday 10/6, and Korea closes again on Friday 10/9 for Hangul Day, so this is a three-day week (Tue–Thu). As with the Chuseok edition on 9/23, we are not skipping the slot. This edition is about what piles up while Seoul is shut.
🔴 Missed editions. The 10/1 PM, 10/2 AM and 10/2 PM briefs were not published (cause unknown). This edition therefore covers two US sessions and one Seoul session, and scores the checkpoints set in the 10/1 AM brief.

SEO Intro

The US added just 29,000 jobs in September against expectations of 84,000. The unemployment rate rose to 4.2%, and July and August were revised down by a combined 60,000. That one report took the odds of an October Fed rate hike from roughly 70% a week earlier down to 17–22%.

Stocks cheered. On Friday 10/2 the Dow closed at 51,176.96 (+0.49%), the S&P 500 at 7,722.72 (+0.73%) and the Nasdaq at 27,190.86 (+1.19%), about 50 points shy of its August 22 record (27,244).

The 10-year Treasury yield told a different story. It dropped to roughly 5.15–5.18% right after the release, then reversed through the session and closed at 5.28%, up 5 basis points. After a weak consumer-confidence print on 9/29 and soft inflation on 9/30, this was the third time in one week that good news for rates failed to bring long yields down. Seoul takes a second day off and absorbs all of it at once on Tuesday 10/6.

1. Checkpoint Scorecard

The four set by the 10/1 AM brief (through the 10/1 US close)

The axis was: does New York buy Micron's results the way Asia did, or discount them through a 5.3% long yield?

# · Test as written · Result (10/1 US close) · Verdict / 1 · Micron regular session above +3% / below −3% · +3% (reported; decimals not secured) · 🟡 Right on the line, leaning toward "New York bought it" / 2 · Did SOX beat the Nasdaq? · Nasdaq +0.04% · SOX 10/1 close 🔲 · 🟡 Pending · over two days SOX ≈ +3.7% vs. Nasdaq +1.2% / 3 · 10-year close above 5.33% / below 5.25% · Intraday 5.342% → close ≈ 5.24% · ✅ Below 5.25%, the week's first pause in rate...

[Interpretation] 10/1 was a day when both sides bought

Checkpoints 1 and 3 pointed the same way: New York bought Micron, and the 10-year backed off after a new high. The feared split, where Micron's home market discounts what Asia bought, did not show up on 10/1. That helps explain why Seoul held 7,000 on 10/2. [Observation] One caveat: Micron's next-quarter gross-margin guidance of 86.25% came in below expectations, which management attributed to higher employee pay (reported). Revenue impressed; margins were merely very good.

2. Today's Key Story: The October Hike Is Gone. Long Rates Are Not Moving.

[Fact] US September Employment Report (10/2)

Item · Actual · Expected / Nonfarm payrolls · +29k · +84k / Unemployment rate · 4.2% (Aug 4.1%) · 4.1% / Average hourly earnings (m/m) · +0.1% · Below forecast / Participation rate · 61.8% (4-month high) / July + August revisions · −60k combined

[Fact] Market Reaction (10/2 US close)

Item · Value / CME October hike odds · 17–22% (82.8% hold) · ~70% a week ago, 35–37% on 9/30 / CME December hike odds · Above 75% (one report) · Kalshi 65% / US 10-year · ~5.15–5.18% after the release → closed 5.28% (+5bp) / US 2-year · 4.84% (+5bp, one report) · still below 4.90% on 9/30 / Nasdaq / S&P / Dow · +1.19% / +0.73% / +0.49% / VIX · 15.31 (−6.59%)

★ [Interpretation] The same picture, a third time

The Treasury market showed the same scene three times this week:

9/29: Consumer confidence at its lowest since 2014 → 30-year at its highest since 2002
9/30: PCE inflation below forecast → 10-year at its highest since May 2002
10/2: Jobs shock → 10-year fell 13bp, then reversed to +5bp

Each report argued the Fed could do less, and short-end expectations (October hike odds) responded every time. Long yields did not come down once. The bear steepening described in the 9/30 brief, where long-term borrowing gets more expensive regardless of what the Fed does, has now survived three data points in a row.

[Observation] December hike odds staying above 75% point the same way. Markets read Friday as a hike pushed from October to December, not the end of hikes.

[Interpretation] What matters for Korea is that this mix was not bad for stocks. Nasdaq +1.19%, SOX +3.7% over two days. Equities heard "the Fed won't hike right now." Bonds heard "long money is still expensive." As our 9/18 notes put it, the two should be scored separately. Whichever weighs more will decide what Korean chip stocks follow on Tuesday.

3. The Korea Variable: Back Above 7,000, Foreign Selling Fading

[Fact] Seoul close, Friday 10/2

Item · Value / KOSPI · 7,003.74 (+0.46%) · intraday low 6,927.88; institutions bought in the final hour / KOSDAQ · 893.29 (−0.11%) · briefly back above 900 for the first time in ~3 months / Foreign / Institutional / Retail · −₩136.7bn / +₩381.4bn / −₩1.72tn / Samsung Electronics · ₩276,000 (0.00%) / SK hynix · ₩1,841,000 (+0.44%) / USD/KRW · 1,350.6 (−7.8 won)

[Observation] Five days of foreign net selling

Date · Foreign net · KOSPI / 9/28 (Mon) · −₩3.23tn · 6,889.74 (−2.70%) / 9/29 (Tue) · −₩2.90tn · 6,870.81 (−0.27%) / 9/30 (Wed) · −₩2.27tn · 6,838.04 (−0.48%) / 10/1 (Thu) · ≈ −₩0.34tn to −₩0.55tn (sources differ) · 6,971.35 (+1.95%) / 10/2 (Fri) · −₩0.14tn · 7,003.74 (+0.46%)

[Interpretation] The five-day total is roughly −₩9 trillion, but the direction is clear: daily selling fell to about one-twentieth of where it started. Since the 9/29 brief we have asked whether the selling was about the chip outlook or about rates and positioning. Selling dropped sharply from 10/1, the day Micron's results landed, which fits the view that worries about the outlook have partly eased. There has not yet been a day of net buying.

[Fact] Korea this week

Tue 10/6: Trading resumes, pricing in Friday's US jobs report and Monday's US session in one go
This week: Samsung Electronics Q3 preliminary results, reported as 10/7 or 10/8 depending on the source. Consensus: revenue about ₩200.7 trillion, operating profit about ₩106.9 trillion (the first ₩100 trillion-plus quarter)
Fri 10/9: Hangul Day holiday

[Interpretation] The currency discount flagged on 9/30, where a stronger won shrinks the won value of dollar earnings, gets its first hard number in these results. USD/KRW is well below its end-of-June level and fell further to 1,350.6 on 10/2.

4. Macro Backdrop: Reserves Released, Strait Still Shut

[Fact] (10/2 closes and settlements)

Item · Value · Note / US 10-year · 5.28% (+5bp) · 10/1 intraday 5.342%, highest since April 2002 / US 2-year · 4.84% · one report / US 30-year · Week's high 5.69% · Friday close 🔲 / WTI · $91.11 (−1.90%) · down as much as 5% intraday / Brent · $102.25 (−0.06%) · briefly below $100; −1.5% on the week / Gold · Down more than 3% on the week · bond selloff, firm dollar / VIX · 15.31

[Fact] Two forces on oil

G7 agrees to release 100 million barrels (10/2): coordinated through the International Energy Agency over four months, with diesel front-loaded in the first 20 days. The deal followed pressure from President Trump on Europe to tap its diesel stockpiles (reported).
Hormuz remains effectively closed: Iran's chief negotiator, the parliament speaker, said on 10/4 that the Strait stays shut until the US accepts Tehran's seven-day plan. A Kuwaiti-flagged tanker was struck on 10/1, and Iran's oil minister has resigned (reported).

[Interpretation] Goldman Sachs estimates the release offsets only about half of the recent rise in diesel prices (reported). Strategic reserves buy time; they do not plug a supply hole. Brent dipping below $100 and bouncing back to $102 shows the market grasped that gap immediately. Whether oil rejoins the forces pushing yields higher will be decided by Hormuz, not the G7.

5. Until Seoul Reopens on Tuesday 10/6: Checkpoints

[Observation] Schedule around the reopen (KST)

Mon 10/5, 22:30 US market opens (Korea closed)
Tue 10/6, 09:00 Korean market reopens
10/7–10/8 Samsung Electronics Q3 preliminary results (date reports differ)
Thu 10/8, 03:00 Minutes of the September FOMC (10/7, 2 p.m. ET)
Thu 10/8 Mainland China markets reopen after Golden Week
Later this week US September PPI and CPI (dates differ across sources; 🔲 to be confirmed)
Fri 10/9 Hangul Day holiday

✅ Four Checkpoints (through the 10/6 Seoul close)

The axis first: these four test whether the jobs shock finally pulls long yields down or, once again, moves only the short end, and how foreign investors in Seoul respond. The answer decides whether this week's Korean chip trade reads as "rate pressure easing" or "earnings carrying the load alone."

Do foreign investors turn net buyers in Seoul on Tuesday? Net buying would be the first in six sessions and the first evidence that position-cutting is done. Another ₩1 trillion-plus of selling would mean Friday's lull was just pre-holiday caution. (Most important)
US 10-year Monday close below 5.20% / above 5.30%. Below means the jobs shock reached long yields a day late; above means they shrugged off a fourth data point.
Does SOX beat the Nasdaq again on Monday? A third straight day would say the memory story is stronger than rates; lagging would mean giving back the two-day +3.7%.
Brent below $100 / above $105. Below means the G7 release is beating the Strait headlines; above means the time bought by reserves is already running short.

[Interpretation] Checkpoint 1 carries the most information. It is the first test of whether the drop from ₩3 trillion a day to ₩0.1 trillion is a real stop or just a pause before the holiday, and it comes right before Samsung's results (the currency-discount test) and the FOMC minutes. In a three-day week, the first day's direction is likely to set the tone for all of it.

6. Study Note: The Unemployment Rate Rose. Is That Only Bad News?

Concept

The unemployment rate divides people who want work but cannot find it by the labor force, everyone working or actively looking. So it can rise for two reasons:

The bad reason: people who had jobs lose them (the top of the fraction grows).
The less-bad reason: people who were sitting out start looking for work (top and bottom grow together).

The number that reveals the second case is the participation rate. In September it hit 61.8%, a four-month high.

Analogy

Think of a line outside a restaurant. A longer line could mean diners are being turned away, or that many new customers just showed up. Line length alone cannot tell you which. You also need to count the new arrivals.

Real example (10/2)

Unemployment 4.1% → 4.2%: worse on the surface.
Participation at a four-month high: much of the rise reflects new job seekers, by most readings (reported).
But hiring itself was only 29,000, and July and August were cut by 60,000. Even with the less-bad reason in the mix, the pace of job creation has slowed.

One-line takeaway

Always read unemployment alongside participation. September looks more like "hiring slowed" than "layoffs rose," which is why markets treated it not as a collapse but as enough cooling to delay an October hike.

7. Corrections and Open Items

Corrections

None. Because of the three missed editions (10/1 PM, 10/2 AM, 10/2 PM), the 10/1 AM checkpoints are scored two days late, in Section 1.

Source discrepancies (values used in the text)

Item · Discrepancy · Used / 10-year on 10/2 · "down ~6bp to 5.18%" / "up ~5bp to 5.281%" / "fell to ~5.15%" · 5.15–5.18% intraday → 5.28% close; the declines refer to just after the release / CME October hike odds · 21.59% / 17% / 82.8% hold · 17–22% / Foreign flow 10/1 · −₩336.6bn / −₩547.3bn · Range shown (same as 10/1 AM) / Samsung preliminary date · 10/7 / 10/8 · 10/7–10/8 / US September CPI date · listed as "Thu 10/9", but 10/9/2026 is a Friday · �...

🔲 Not yet secured

Item · Status / SOX 10/1 standalone close · 🔲 (two-day total only) / US 30-year close and Dollar Index on 10/2 · 🔲 / Sunday oil futures reopen · 🔲 / Korea 10-year government bond · offshore NDF · 🔲 (KTB 10-year missing 8 editions running)

8. Event Calendar (KST)

Time (KST) · Event · Note / Mon 10/5 · Korea closed (substitute holiday) · US trades normally / Tue 10/6, 09:00 · Korean market reopens · 4 checkpoints / 10/7–10/8 · Samsung Q3 preliminary results · OP consensus ≈ ₩106.9tn / Thu 10/8, 03:00 · September FOMC minutes / Thu 10/8 · Mainland China reopens / Later this week · US September PPI & CPI · dates to be confirmed / Fri 10/9 · Korea closed (Hangul Day) / 10/28–29 · FOMC (US 10/27–28) · October hike od...

Sources

Market Analyst · We do not make buy or sell recommendations on individual stocks. This brief offers macro context and interpretation.

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Oct 5, 2026 KOSPI Market Brief — What to Watch Before the Korean Open

SEO Intro

1. Checkpoint Scorecard

The four set by the 10/1 AM brief (through the 10/1 US close)

[Interpretation] 10/1 was a day when both sides bought

2. Today's Key Story: The October Hike Is Gone. Long Rates Are Not Moving.