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The Trading Day · Tuesday, October 13, 2026

Korea — Kospi −5.5% breaks its 18-month uptrend; SK Hynix and Samsung about −8% on a China memory scare

Korea is the story this morning. The Kospi closed down 5.5% at 6,035, after falling as far as about 5,914 and briefly below 6,000 — enough to trigger the exchange's sell-side curb on computer-driven trading for the first time in about two months. The two memory makers carry it: SK Hynix and Samsung Electronics traded down around 8%, as reported, after China's CXMT flagged progress on a new memory chip.

The Morning 10

Korea — Kospi −5.5% breaks its 18-month uptrend; SK Hynix and Samsung about −8% on a China memory scare

  1. 1 Korea — Kospi −5.5%, under 6,000 at the low; a sell-side curb for the first time in two months
  2. 2 Kospi chart — three failed tries at 7,200, then the break of the line from April 2025
  3. 3 Memory makers — SK Hynix and Samsung about −8% as China's CXMT flags a new memory chip
  4. 4 US memory and optics — Micron −3.9% to below $1,000, SanDisk −6.0%, Lumentum −9.8%
  5. 5 AI indices — Rubin −6.9% on the week, Agentic Winners +2.1%: the money moves from chips to software
  6. 6 Tokyo and Taiwan — Nikkei −1.8% back from its holiday, Taiex −1.9%; Hong Kong flat, Shanghai +0.1%
  7. 7 Wall Street — S&P 500 flat at 7,807, Nasdaq −0.4%; Meta +3.4%, energy fund +1.4%
  8. 8 Oil and rates — Brent −1.3% overnight after Monday's high close; the US bond market reopens after Columbus Day
  9. 9 Print Record — JPMorgan, Goldman Sachs and UnitedHealth report today; PepsiCo is scored at tonight's close
  10. 10 Europe and futures — DAX +0.8% on Monday; S&P 500 futures −0.1%, bitcoin +2.3%

Daily Pulse — Banks — More Profit, Still Not Enough

The first big earnings day of the season: JPMorgan and Wells Fargo earned more than a year ago and still fell short — JPMorgan missed on profit and revenue, Wells Fargo on revenue — and both traded about 2% lower before the open. Goldman Sachs beat widely, $17.01 a share against about $13.02, and Citigroup beat on both lines. Health care did better too: UnitedHealth and Johnson & Johnson beat and raised their 2026 outlooks.

Print-record cards of the day

  • JPM — JPMorgan Chase: EPS beats 9/10 · revenue 9/10 · reactions 2 up / 8 flat / 0 down · next print 2026-10-13
  • GS — Goldman Sachs: EPS beats 10/10 · revenue 9/10 · reactions 1 up / 8 flat / 1 down · next print 2026-10-13
  • UNH — UnitedHealth: EPS beats 8/10 · revenue 5/10 · reactions 2 up / 5 flat / 3 down · next print 2026-10-13
  • C — Citigroup: EPS beats 9/10 · revenue 9/10 · reactions 2 up / 8 flat / 0 down · next print 2026-10-13
  • WFC — Wells Fargo: EPS beats 8/10 · revenue 5/10 · reactions 2 up / 8 flat / 0 down · next print 2026-10-13
  • JNJ — Johnson & Johnson: EPS beats 9/10 · revenue 9/10 · reactions 1 up / 9 flat / 0 down · next print 2026-10-13
  • BLK — BlackRock: EPS beats 10/10 · revenue 7/10 · reactions 1 up / 8 flat / 1 down · next print 2026-10-14
  • BAC — Bank of America: EPS beats 10/10 · revenue 9/10 · reactions 2 up / 8 flat / 0 down · next print 2026-10-14
  • MS — Morgan Stanley: EPS beats 10/10 · revenue 5/10 · reactions 0 up / 7 flat / 3 down · next print 2026-10-14
  • ASML — ASML: EPS beats 8/10 · revenue 8/10 · reactions 1 up / 6 flat / 3 down · next print 2026-10-14
  • TSM — TSMC: EPS beats 9/10 · revenue 10/10 · reactions 3 up / 4 flat / 3 down · next print 2026-10-15
  • SAP — SAP: EPS beats 7/10 · revenue 5/10 · reactions 6 up / 3 flat / 1 down · next print 2026-10-21
  • IBM — IBM: EPS beats 9/10 · revenue 6/10 · reactions 5 up / 0 flat / 5 down · next print 2026-10-21

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