The Trading Day · Wednesday, August 19, 2026

The day after the wire, the tape breaks — Korea's sidecar night, dollar-yen back under 159.5, and the sovereign tell reads equity-led

Tuesday's US close did more damage to the AI build-out complex in a single session than any day since the July leg down. SOXX fell −4.96% to 531.39, XSD −5.75%, SMH −4.09%, and the DRAM ETF broke its 60 shelf outright, down −8.76% to 55.10 from 60.39 — the shelf yesterday's Pulse had it sitting exactly on did not survive the session. Fabrinet, which closed Monday at 598.58 on a clean double beat, finished Tuesday at 482.59, down −19.38% on the day — the full arc, beat, sold after hours, then sold again into the close, took roughly a fifth off the stock in 24 hours. Coherent fell −12.75%, CoreWeave −12.10%, Nebius −7.60%, Lumentum −9.87%, Applied Materials −3.92%. The tape split hard by sector rather than by size: software held or rose (IGV −0.03%, CLOU −0.47%, and the large caps were green — Salesforce +2.71%, Adobe +3.58%, Intuit +4.41%) while hyperscalers split among themselves — Apple +1.45%, Microsoft +0.27%, Alphabet +0.06% against Nvidia −2.34% and Meta −4.45%. Momentum gave back its lead outright: SPMO fell −2.75% to 150.90 while SPLV rose +0.38% to 76.03, a full reversal of Monday's momentum-led read. VIX rose +4.28% to 15.84, matching what the price action was already saying.

The Morning 10

The day after the wire, the tape breaks — Korea's sidecar night, dollar-yen back under 159.5, and the sovereign tell reads equity-led

  1. 1 Korea's Sidecar Night
  2. 2 Semis' Hardest Session Since July
  3. 3 The Sovereign Co-Tell: Equity-Led, Not Sovereign-Led
  4. 4 The Split Tape Widens
  5. 5 Factor Flip: Momentum Gives Back the Lead
  6. 6 Oil's Fourth Day
  7. 7 The Memory-Week Anomaly Survives the Crash
  8. 8 Family Dispersion: AW40 the Green Outlier
  9. 9 Print Record Day: Clean Beats Sold, ADI Before the Open
  10. 10 Today's Calendar

Print-record cards of the day

  • ADI — Analog Devices: EPS beats 10/10 · revenue 10/10 · reactions 3 up / 7 flat / 0 down · next print 2026-08-19

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