Korea Chip Exports Triple, Kospi Touches 7,000, Tokyo Shut

Asian Chips — Korea’s chip exports more than tripled and the Kospi touched 7,000, with Tokyo shut

South Korean customs reported $34.12 billion of semiconductor exports in the first twenty days of September, up 259.4% on the year and 47.8% of everything the country shipped — the highest share on record. The Kospi topped 7,000 intraday for the first time in eight sessions and Samsung traded as much as 4.6% higher. All of it happened without Japan: Tokyo’s cash market is closed Monday, Tuesday and Wednesday and does not reopen until Thursday — the same day Seoul leaves for Chuseok. Asia’s two largest chip markets do not trade on the same day this week.

In this edition

The Morning 10 Mon, Sep 21, 2026 ~90 seconds 08:00 CET

The ten points

The hardest number this morning is not a share price, it is a customs receipt. South Korea shipped $71.4 billion of goods in the first twenty days of September, 78.3% more than a year ago and the largest twenty-day total the country has ever recorded — the previous best was $61.7 billion in June. Semiconductors were $34.12 billion of that, up 259.4% on the year, and they were 47.8% of everything Korea sold abroad, an all-time high share. Imports rose 26.7% to $48.4 billion, leaving a $23.0 billion surplus in twenty days. Korea is the first place in the world where AI demand shows up as a settled number rather than a forecast, and it has just printed the biggest one it has.

Seoul bought it. The Kospi topped 7,000 intraday for the first time in eight sessions, around 7,023 at its best, and stood at 6,996.62 at 05:55 UTC, up 1.5%; Samsung Electronics was ₩273,000, up 4.6% on Friday’s close, SK Hynix ₩1,870,000, up 0.7%. Taipei added 1.1% to 47,718.84 with TSMC NT$2,480. Hong Kong rose 0.6%. What is missing from that list is Japan, and its absence is the structural fact of the week: the Tokyo Stock Exchange is closed today for Respect for the Aged Day, closed tomorrow for the bridge holiday and closed Wednesday for the autumn equinox, reopening Thursday 24 September. Seoul then shuts Thursday and Friday for Chuseok and returns on the 28th; Taipei shuts Friday for the Mid-Autumn Festival. Asia’s two largest chip markets are open on zero common days this week.

New York goes in with the lines held but the week behind it uneven. Friday’s closes: the S&P 500 ETF $761.69, down a tenth on the day but a second close above $757.83; the Nasdaq-100 fund $721.45, up 0.6%; the semiconductor ETF $533.07, up 2.7% and through its fifty-day at $525.67; the memory ETF $59.61, up 3.2% and finally back above the $58 it had owed since Monday; the Magnificent Seven fund $70.46, above 69.5. Underneath, the equal-weight S&P and the Russell both fell about half a percent and the software fund fell 1.4% — the third session running in which the chip bid was paid for out of everything else. This morning US futures are up around 0.4 to 0.6%, the VIX is 14.81, the 10-year is back at 4.998%, the dollar index 100.34 and the yen 157.04. Brent is $97.98, down 1.3%, after a Houthi ballistic missile aimed at Riyadh on Saturday was intercepted. And on Thursday, in Washington, Donald Trump meets Xi Jinping.

  1. Korea’s 1–20 September customs print: total exports $71.4bn, +78.3% year on year and a record for any twenty-day tally (previous $61.7bn, June); semiconductors $34.12bn, +259.4%, 47.8% of all exports and an all-time high share; imports $48.4bn, +26.7%; trade surplus $23.0bn; petroleum products +47.8%, ships +63%, cars +9.3%
  2. Asia’s chip tape runs on a rotating skeleton crew this week: Tokyo closed Monday (Respect for the Aged), Tuesday (bridge holiday) and Wednesday (autumn equinox), reopening Thursday 24th; Seoul open Monday to Wednesday then closed Thursday and Friday for Chuseok, back on the 28th; Taipei open Monday to Thursday, closed Friday for the Mid-Autumn Festival; Hong Kong open throughout
  3. Friday’s US closes and the lines: S&P 500 ETF $761.69, −0.1% but a second close above $757.83; Nasdaq-100 fund $721.45, +0.6%, above $708.69 and clear of the 704 shelf; semiconductor ETF $533.07, +2.7%, above $505 and through the fifty-day at $525.67; memory ETF $59.61, +3.2%, above the $58 owed since Monday; Magnificent Seven fund $70.46, −0.5% but above 69.5; equal-weight S&P −0.5%, Russell 2000 −0.5%, software fund −1.4%
  4. The equipment three rose hard on Friday and still lost the week: Applied Materials $444.57, +6.5% on the day and −2.6% over five sessions; Lam Research $288.11, +7.0% and −3.4%; KLA $176.99, +4.7% and −2.0%. SanDisk $1,791.82, +11.0% on the day and +9.7% on the week; Micron $1,015.80, +3.9% and +4.2%, its first close above $1,000 since 9 September; Nvidia $222.27, +1.3%; Broadcom $357.61, +3.0%; ASML $1,679.92, +3.1%
  5. Rubin Build-Out EW closed Friday at 1,954.97, +2.6% on the day but −0.4% on the week and −0.4% on the month; by layer, Design +2.5% on the day and +3.3% on the week — the only layer positive over five sessions — against Fabrication +2.8% and −0.3%, Assembly & Test +3.7% and −0.4%, Infrastructure +2.4% and −1.5%
  6. HALO Growth 100 EW 1,005.28 Friday, −0.7% on the day, −1.5% on the week and −7.6% on the month; Agentic Ecosystem EW 1,633.12, −0.8% on the day but +6.6% on the week and +5.8% on the month; AW40 EW 909.94, −1.5% on the day, flat on the week, −2.2% on the month
  7. Oil sold into an attack: Brent $97.98 at 05:55 UTC, −1.3% from Friday’s $99.29 and back under $100 after the $108 spike; WTI $94.46, −1.7%; a Houthi ballistic missile aimed at Riyadh on Saturday was intercepted by the Saudi-led coalition, with a fire at a fuel depot near King Khalid International Airport and further attempts reported at Bisha, Taif, Farasan and Yanbu
  8. Rates, the dollar, the yen and gold at 05:55 UTC: 10-year 4.998%, back at 5.00% after Friday’s 4.947%; VIX 14.81 against Friday’s 15.44; dollar index 100.34, +0.1%; yen 157.04 to the dollar, three days after the Bank of Japan hiked to 1.25%; euro $1.1477; gold futures $4,389.60, −0.8%, with the gold ETF’s Friday close of $401.17 still under its two-hundred-day at $416.22; bitcoin $81,534, +1.3%
  9. Washington, Thursday 24 September: Donald Trump meets Xi Jinping at the White House. Treasury Secretary Scott Bessent and Vice Premier He Lifeng opened preparatory talks in New York on Sunday and Bessent called the meeting successful; the agenda reported by Reuters, Bloomberg and CNBC covers trade and investment, artificial intelligence, the Iran war, rare-earth and critical-mineral flows, tariff cuts, and whether the trade truce that expires on 10 November is extended
  10. The clock: Seoul and Taipei trade today, Tokyo does not; Cintas reports Wednesday, BlackBerry and Costco Thursday; the Trump–Xi summit Thursday; Tokyo reopens Thursday as Seoul leaves for Chuseok; Taipei closed Friday; Micron reports 30 September; the lines — S&P ETF $757.83, Nasdaq-100 fund $708.69 and 704, chip ETF $505 and the fifty-day $525.67, memory ETF $58, Magnificent Seven fund 69.5, the 10-year 5.00%, the yen 156 and 160, Brent $100, bitcoin $82,139 and $76,838
  1. Korea’s 1–20 September customs print: total exports $71.4bn, +78.3% year on year and a record for any twenty-day tally (previous $61.7bn, June); semiconductors $34.12bn, +259.4%, 47.8% of all exports and an all-time high share; imports $48.4bn, +26.7%; trade surplus $23.0bn; petroleum products +47.8%, ships +63%, cars +9.3%

    Context

    005930.KS000660.KSMUSNDKDRAM

    What
    The Korea Customs Service publishes a twenty-day tally three times a quarter, and it is the highest-frequency hard read on semiconductor demand that exists — it is settled trade, not a survey and not guidance. September 1–20 came in at $71.4 billion of total exports, 78.3% above the $40 billion of the same twenty days in 2025 and comfortably past the $61.7 billion record set in June. Semiconductors alone were $34.12 billion, up 259.4% on the year, and their share of total exports reached 47.8% — the highest the 1–20 series has recorded. Non-chip exports were not weak either: petroleum products +47.8%, ships +63%, cars +9.3%. Imports rose 26.7% to $48.4 billion, so the surplus was $23.0 billion in twenty days. The Korea Times, Korea Herald and Seoul Economic Daily all led on the chip line; the SBS write-up put the semiconductor share at 48%.
    If
    The full-month print at the start of October confirms the twenty-day run rate rather than fading into the month-end, and the October 1–20 tally holds a chip share above 45%.
    Why
    A 259% year-on-year move in a $34 billion line is not a pricing artefact and not a restock — it is volume arriving against orders placed months ago, and it lands nine days before Micron reports. Korea is where the build-out becomes a receipt, and the receipt is larger than any published forecast of it.
    Then
    We read this as the order-book fact of the quarter arriving early, and we will hold it against Micron’s 30 September print rather than against any share price this week. The number we carry forward is the 47.8% share, because a concentration that high is both the strength of the read and its fragility.
  2. Asia’s chip tape runs on a rotating skeleton crew this week: Tokyo closed Monday (Respect for the Aged), Tuesday (bridge holiday) and Wednesday (autumn equinox), reopening Thursday 24th; Seoul open Monday to Wednesday then closed Thursday and Friday for Chuseok, back on the 28th; Taipei open Monday to Thursday, closed Friday for the Mid-Autumn Festival; Hong Kong open throughout

    Structure

    8035.T6857.T3436.T4004.T2330.TW

    What
    The Japan Exchange Group has a three-day equity closure this week — 21, 22 and 23 September — with cash trading resuming on the 24th; JPX keeps its derivatives market running through it, so Japanese risk can be hedged but not owned. Korea Exchange trades Monday through Wednesday and then closes Thursday the 24th and Friday the 25th for Chuseok, returning Monday the 28th; KRX has also suspended overnight derivatives trading from 18:00 on the 23rd because trades that night would not settle until the 28th. Taiwan trades Monday to Thursday and closes Friday the 25th for Mid-Autumn. Lay the four calendars over each other and Tokyo and Seoul — the two exchanges where the memory and equipment complex actually lives — share no open session at all this week.
    If
    A chip-relevant headline lands Tuesday or Wednesday and the only Asian venues that can price it are Seoul and Taipei; or one lands Thursday or Friday and the only one left is Tokyo, freshly back from three days off.
    Why
    Price discovery in this complex is normally a relay — New York closes, Tokyo and Seoul take the baton, Taipei confirms, New York opens against all three. This week the relay has gaps in it, which means gap risk rather than trend risk: the reopening exchange prices three days of news at once rather than one day of it.
    Then
    We do not treat any single Asian session this week as a broad signal, and we will read Thursday’s Tokyo reopen as a three-day catch-up print, not a verdict. Our Rubin index’s 25 Japanese constituents are marked at Friday’s closes until then, and we will say so wherever those figures appear.
  3. Sector Rotation Where the money is rotating across the eleven sectors — the board behind the day’s leadership story. Open the rotation board →
  4. Friday’s US closes and the lines: S&P 500 ETF $761.69, −0.1% but a second close above $757.83; Nasdaq-100 fund $721.45, +0.6%, above $708.69 and clear of the 704 shelf; semiconductor ETF $533.07, +2.7%, above $505 and through the fifty-day at $525.67; memory ETF $59.61, +3.2%, above the $58 owed since Monday; Magnificent Seven fund $70.46, −0.5% but above 69.5; equal-weight S&P −0.5%, Russell 2000 −0.5%, software fund −1.4%

    Context

    SPYQQQSOXXDRAMMAGSRSPIWMIGV

    What
    Every line the desk carries is now on the right side of its level, and the last one outstanding was paid on Friday: the memory ETF closed $59.61 after spending the week under the $58 it lost on Monday. But the index that matters most for breadth went the other way — the S&P 500 ETF actually fell a tenth of a percent on the day even as the chip ETF added 2.7%, and the equal-weight S&P, the Russell 2000 and the software fund all fell. The ex-tech Nasdaq cut closed $96.73, down 0.7%. This was expiry Friday, so the closing prints carry mechanical weight that a normal session does not, which is the caveat we flagged on Thursday and it still stands: today’s close is the first unencumbered read on whether the reclaim is owned or merely expired into.
    If
    Today’s close holds the same four lines without the expiry mechanics — and the equal-weight S&P and the Russell stop falling on chip-up days.
    Why
    A tape where the semiconductor fund gains 2.7% and the broad index still finishes red is not a rally, it is a transfer. The reclaim is real on the lines we track and thin everywhere else, and a fourth consecutive week of cap-weight beating equal-weight is the stated limit of what we called a normal rotation.
    Then
    We treat the lines as held and the breadth as unconfirmed, and we will not upgrade the read until a session gains on the chip complex without the broad index paying for it.

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C · point 11 · members

Today in line 11: the desk’s diary entry on where the price of the AI build-out is actually being set this week — why a customs receipt from Seoul has become a higher-quality read on demand than any company’s guidance, what it means that the two exchanges which price the physical half of the complex share no open session for five days, why a reopening market prices three days at once instead of one, and what we will and will not conclude from Thursday’s Tokyo print.

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