Market state
Market Temperature
Reading builds after US close. First snapshot lands tonight.
Full lab →Daily check-in · 2026-09-18
Friday, September 18, 2026. Everything fresh from the ecosystem on one page.
The Morning 10 Fri, Sep 18, 2026 ~90 seconds 08:00 CET
Yen — the Bank of Japan hikes and the dollar holds 157: the carry trade pays, the lines held, chips +3.4% over $505
Two central banks raised rates this week and the market has now answered both. The Federal Reserve hiked on Wednesday and the belly of the curve sold, the 10-year closed above 5% for the first time in the cycle, and the equity lines were lost at the bell. On Thursday the same curve fell six basis points in parallel — 10-year 4.947%, 5-year 4.801%, 30-year 5.296% — the VIX fell 13% to 15.4, gold was bought back +1.7% after two days sold on the hike, and every equity line we carry was retaken and held into the close: the S&P 500 ETF $762.60 above $757.83, the Nasdaq-100 fund $716.92 above $708.69, the semiconductor ETF $519.10 above $505 and above last Thursday’s $517.43, the Magnificent Seven fund $70.78 above 69.5. The memory ETF closed $57.78, twenty-two cents under the $58 it lost on Monday; it is the one line still owed. The equal-weight S&P +0.5%, the Dow +0.6%, the Russell +0.5% — narrower than the cap-weighted number, which is how a chip-led day looks from the inside.
Then the Bank of Japan. It raised its policy rate a quarter point to 1.25% on Friday morning, the highest in 31 years, exactly as the wires expected, and the yen fell: 157.2 to the dollar at 06:00 UTC, 0.8% weaker on the day, through the 156 it carried into the meeting. Reuters’ headline was ‘Yen slumps after BOJ hikes rates as expected’; CNBC’s that the bank ‘flags concerns over inflation’. Tokyo bought the decision — the Nikkei +1.6% at 65,159, Tokyo Electron +4.2%, SoftBank +1.7% — and Seoul bought harder, the Kospi +2.8% at 6,903 with SK Hynix +6.0% and Samsung +3.5% following Micron and SanDisk; the Taiex closed +1.9% with TSMC +1.4%. The dollar index is 100.3, Brent $103.52 and under $107.63 a fourth day, gold futures $4,412, bitcoin $77,400, US futures +0.3%. The Thursday tape in New York and the Friday tape in Asia say the same thing from two sides: the hike was absorbed and the currency that could have made it dangerous did not move the wrong way.
Inside the AI trade the sort paused rather than closed. The design side was bought wide — Arm +8.6%, Intel +7.7%, AMD +6.4% to $545.09, Micron +5.5% to $977.50, Marvell +4.8%, TSMC +3.0%, Nvidia +2.5% to $219.34, Astera Labs +9.1% — and the equipment three only stopped falling: Applied Materials +0.5%, Lam Research flat, KLA +1.0%. Rubin closed +1.5% at 1,904.95 on its Foundry and Architects layers while its Japanese constituents fell 0.9% — Sumco −3.7%, Resonac −4.0% — which makes Tokyo Electron’s +4.2% this morning the first equipment name on either continent to join the reclaim. Software recovered less than chips, the software ETF +0.8%, and the Agentic Winners 40 +0.4%; Oracle +5.2% to $150.59 closed back above the line it was marked sold at on Tuesday, Adobe $252.67 stayed under the line it was paid above. Friday is the quarterly options expiry: the strikes with the largest open interest tend to pin the indices, and the release comes Monday. Line 11 is the desk’s diary entry on why moderately, durably higher US rates may be what keeps the yen from surging — and up to what level that holds.
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The Midday 10 Thu, Sep 17, 2026 ~60 seconds 12:30 ET
The day after the hike, the bond market is buying back what it sold into the statement. The 10-year Treasury yield is 4.947% at midday, six basis points under Wednesday's 5.006% close and back below the 5% line it crossed for the first time this cycle last night; the 5-year is 4.797%, down from 4.859%, and the 30-year 5.296%. The whole curve is lower by the same six basis points, which is a different message from Wednesday's bear flattener: yesterday the belly sold and the long end was bought, the market pricing more hikes and believing they work; today everything is bought, the market saying the price it reached was enough. The Wall Street Journal's line is that yields are falling because the Fed regained trust; Reuters has the rate-options market signalling it can absorb higher yields. Both are the same reading from different desks — a hike the market believes lowers the term premium it demands.
Equities are trading that reading in full. The S&P 500 ETF is $762.12, up 1.1%, back above Thursday's $757.83 after Tuesday's close of $757.39 and Wednesday's of $754.05 put it under the line twice; the Nasdaq-100 fund is $716.33, up 1.6%, above $708.69; the semiconductor ETF is $518.02, up 3.2%, above $505 for the second midday in a row and now 2.5% from its 50-day average near $531. The chip bid is the design side again, wider than yesterday: AMD +6.4% to $545.38, Micron +5.5% to $977.94 with the memory ETF +4.4% to $57.63, a whisker under the $58 line it lost on Monday, Broadcom +2.9%, Nvidia +2.3% to $218.74, TSMC +2.1%. The software ETF is +0.9% at $105.93 — the buyers of compute recovering less than the sellers, because the discount rate moved six basis points, not sixty. The Magnificent Seven fund is $70.56, back above 69.5; the equal-weight S&P +0.6%, the Dow +0.6%, the Russell 2000 +1.2%; the VIX 15.7, down 11%.
The prices around the tape agree. Gold is +2.1%, the gold ETF at $400.13, the hedge bought back after two days of selling on the hike; the dollar index 100.24, flat; Brent $103.68, down 2.0%, under Thursday's $107.63 for a third session and heading for the $100 handle the wires are already writing about. The yen is 155.87 into the Bank of Japan's decision overnight, and the Bank of England held this morning. In the print record, Oracle is +5.5% to $151.57, back above the $148.35 line it was sold under on Tuesday; Adobe is flat at $250.19, still under the $256.29 line it was paid above. We wrote yesterday at this hour that a relief tape before the decision was a position, not a verdict, and the close proved it — every line lost by four o'clock. Today's relief is larger and comes after the event rather than before it, which changes the odds but not the rule: a line is a close, the close is at 20:00 UTC, and tomorrow is a quarterly expiry.
US midday, intraday quotes (delayed, ~11:56 ET); Europe near its close, Asia closed; oil, gold, rates and currencies live. The Bank of England held rates this morning; the Bank of Japan decides overnight into Friday. Wednesday's closes are the reference for every move.
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Wednesday's curve sold the belly and bought the long end — the market pricing a sequence of hikes and believing it works. Thursday's curve is lower everywhere by roughly the same six basis points: the 10-year at 4.947% is back under the 5% it closed above last night for the first time this cycle, the 5-year 4.797% from 4.859%, the 30-year 5.296% from 5.349%. A parallel move lower the day after a hike is the market saying the level it reached was enough — the Journal calls it the Fed regaining trust, Reuters' desk reads the rate-options market as able to absorb higher yields. We keep 5.00% as the line and note that one session under it, at midday, is a reprieve and not a reversal of a two-month trend.
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Every equity line this diary carries is above its mark at midday for the first time since Monday's sort began. The S&P 500 ETF at $762.12 is $4.29 over $757.83 after two closes under it; the Nasdaq-100 fund at $716.33 is $7.64 over $708.69 and well off the 704 shelf it sat on for four sessions; the semiconductor ETF at $518.02 is $13 over $505 and 2.5% from its 50-day average near $531; the Magnificent Seven fund is a dollar over 69.5. The one line not yet retaken is $58 on the memory ETF, at $57.63 after +4.4%. Breadth is narrower than the headline: the equal-weight S&P +0.6% and the Dow +0.6% against the Nasdaq-100's +1.6% — the long-duration funds lead again, as they did at this hour on Wednesday before the close took it all back.
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The chip sort has a wider buy side today. AMD +6.4% to $545.38 leads for a third session, Micron +5.5% to $977.94 puts the memory economy within 37 cents of the $58 line on its ETF, Broadcom +2.9% and Nvidia +2.3% to $218.74 join, TSMC +2.1% follows Taipei's +1.0%. Wednesday's leaders sit this one out: Lumentum −0.4% after +9.6%, Coherent +1.2% after +6.9% — the wiring was bought yesterday, the design names today, which is a rotation inside a sector being bought, not a sector being sold. The equipment three we watch at each close are not in this list because the midday probe does not carry them; the close will say whether Applied Materials, Lam and KLA joined.
Market state
Reading builds after US close. First snapshot lands tonight.
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