Read Achilles
United States
Mon Oct 12 · 300 advancers / 170 decliners / 2 unchanged · 472 stocks with data · sector moves via SPDR ETFs
Global closebook
Monday U.S. and European closes, Friday holiday baselines, and Tuesday Asia or premarket observations are separated row by row.
DATES ON EVERY ROW
Tuesday state · October 13 · ~5am ET
Asia update and U.S. pre-open
- KOSPI closed 6,035.35, down 5.46% Tue Oct 13; Nikkei closed 67,632, down 2.03%, on its reopen after Sports Day.
- U.S. equity futures were mixed: S&P 500 −0.1%, Nasdaq-100 −0.2%, Dow +17 points (~+0.05%) in the Tue-AM window ahead of bank earnings.
- Shanghai’s Tue Oct 13 close was not verified. Only the 3,760.80 open (−0.96%) is shown. Cash Treasury closes remain Fri Oct 9; early Tuesday quotes are labeled separately.
Ten developments that matter
News from Monday daytime through Tuesday ~5am ET, with dates, public-source attribution and reported or single-source caveats retained.
MON OCT 12 → TUE OCT 13 ~5AM
True top ten most-moved
U.S. rankings use the Mon Oct 12 regular session. Canada remains the Fri Oct 9 session because the TSX was closed Monday.
US MON OCT 12 · CA FRI OCT 9
United States · top ten
MON OCT 12 · S&P 500 + NASDAQ-100 · ≥$10M 50D AVG $ VOLUMECompanyPrice1 day5 day + pathVol / 50dCatalyst
Mon Oct 12, 2026 regular session · 472 names with data of 490 requested; 18 missing, including BAC, DE, FCX, MRK and ON.
Canada · top ten
FRI OCT 9 · TSX COMPOSITE PROXY · ≥C$2M 50D AVG $ VOLUMECompanyPrice1 day5 day + pathVol / 50dCatalyst
Fri Oct 9, 2026 regular session · TSX Composite proxy: top 240 TSX common stocks by 50-day average daily dollar volume; 211 names with data after the C$2M filter. TSX was closed Mon Oct 12.
Sector breadth
U.S. sector ETFs use Mon Oct 12; Canada’s equal-weight proxy remains Fri Oct 9.
SESSION-SPLIT BREADTH
Canada
Fri Oct 9 · 158 advancers / 52 decliners / 1 unchanged · 211-stock TSX proxy · equal-weight sector averages
Top-movers heat maps
Top 50 by absolute one-day move for each market’s stated session. Tile area follows market cap; color intensity follows trading volume versus its average.
US MON OCT 12 · CA FRI OCT 9
Encodingtile size = market cap (square-root scaled)<0.95× volume~1.0× neutral>1.05× volume>1.5× strong
United States · top 50
Mon Oct 12, 2026 · all sectors · S&P 500 + Nasdaq-100 universe. Every tile shows ticker, one-day move and volume ratio.
Canada · top 50
Fri Oct 9, 2026 · all sectors · TSX Composite proxy; TSX closed Mon Oct 12. PLTR.TO and AMZN.TO use parent-company global market caps.
What the data says
Interpretation keeps Monday U.S., Friday Canada/Treasury and Tuesday live observations distinct.
NO MIXED-DATE SNAPSHOT
Headline calm hid a hardware reset
On Mon Oct 12, the Dow gained 0.38%, but the Nasdaq fell 0.44% and technology lost 1.22%. The 300-to-170 advance/decline count was positive, yet optical, memory and AI-infrastructure names dominated the downside as the CXMT story and AI-capital caution spread. Two distinct forces drove it: a competition scare (CXMT’s 4F2 claim, still without volumes or yields) and a returns scare (Hock Tan’s casino remark, landing on a tape already questioning what AI spending earns back).
Tuesday’s Asia close made that stress explicit: KOSPI −5.46% and Nikkei −2.03% on Oct 13, with the KOSPI’s intraday low of 5,911.11 (−7.4%) and a foreign-selling wave amplified by the end of chipmaker buybacks. Bank earnings today and CPI Wednesday now test whether the rotation stays contained. For readers: the tell this week is not the index level — it is whether bank prints and CPI re-anchor the AI-spending story or confirm a broader de-rating. Until then, treat chip bounces as relief, not reversal.
Coverage notes
Coverage limits and calculation details for this fixed Tuesday morning edition.
PUBLIC SOURCES · FIXED SNAPSHOT
Reporting access
- No newsletter issues were available today. Bloomberg full text (subscriber) underpins the France and Broadcom items; other Bloomberg references use public headlines/ledes or named secondary reporting.
- Developments use the named public sources shown under each item. Vendor claims, conflicts and single-source figures are labeled in the story.
- Oil settles were cross-checked between BirrMetrics and Sharecafe, consistent with verified Fri Oct 9 settles.
United States
- Yahoo Finance public daily bars; current S&P 500 + Nasdaq-100 members, common stock only, ≥$10M 50-day average daily dollar volume; 472 of 490 requested names with data; 18 missing, including BAC, DE, FCX, MRK and ON.
- Movers, breadth and heat map use Mon Oct 12. Cash Treasury yields are Fri Oct 9 official closes because the market was closed Monday; Tuesday early quotes are separate.
- Bank EPS estimates are vendor ranges where LSEG and FactSet differ.
Canada & cross-asset
- Yahoo Finance public daily bars; TSX Composite proxy of the top 240 TSX common stocks by 50-day average daily dollar volume, ≥C$2M; 211 names with data. The authoritative member list is not publicly enumerable.
- Canada movers, breadth and heat map use Fri Oct 9 because the TSX was closed Mon Oct 12. Nikkei Friday baseline and Tuesday update are separate.
- DXY and ETH are shown as ranges because source snapshots conflict. Shanghai’s Tue close was not verified; only the Tue open is shown.
Gaps & corrections. Corrected: KOSPI Tue intraday low to 5,911.11 (−7.4%), from −6.6% in the morning edition. Seoul reports differed on the exact Samsung/SK Hynix closes, so this edition uses rounded figures (roughly −7% / −10%). Citi and Goldman earnings estimates still differ materially between vendors (see story 3). Shanghai’s Tue close remains unverified; the Amazon–Decart talks are unconfirmed; CXMT has disclosed no volumes or yields. Full text unavailable via public sources for WSJ/Barron’s subscriber articles; Bloomberg full text was obtained for the France and Broadcom items; other enrichment uses public reporting and named secondary accounts. Patch (Bloomberg reconciliation, Oct 13): Broadcom contested-rendering framing replaced with Bloomberg News full text (Oct 12) — ~10% fall-then-recovery, custom-accelerator / customer-backed-demand distinction; demand-beats-supply counterpoint dropped (not separately sourced in file). France item gained Bloomberg full-text street dimension (Oct 13): ~200 schools closing Tue, 57% support (Cluster 17), understaffing/overcrowding/schedule grievances, budget constraint, Nov 5 follow-up protests. Also removed: an unverified ~7,000-arrests figure and an arcade-credits Tan line, both previously carried under Bloomberg attribution but not present in the Bloomberg full text obtained.