What happened
The worst day since October 2025. The Nasdaq-100 fell 4.8% — 1,450 points — and the VIX exploded 40% to 21.5, clearing its 200-day average. Tech participation crashed from 60% to 47%, a formal regime break, and the monthly momentum gauge was rejected hard from the 77.88 threshold, collapsing to 70.8.
The catalyst stack: Broadcom's AI-chip outlook missed, Meta announced a large share sale, and a hot jobs report sent rate-hike odds to 70% by December — yields spiked across the curve, with 20- and 30-year rates above 5%. Chips fell 10–15%. The one calm voice: credit markets barely moved, marking this as an orderly repricing rather than a panic.
The dashboard
Below the 60% line — the index is being carried by a minority of its stocks.
7.04 points below the 77.88 threshold — the three-peak caution pattern remains in force.
Mid-range — momentum neither stretched nor washed out.
Negative — decliners outweigh advancers beneath the surface.
The trend at a glance
Reference levels on this date
| Reference | Level | Plain meaning |
|---|---|---|
| NDX · 200-day average | 25,552 | The long-term trend line. |
| NDX · deep-value band (QEMA5) | 25,123 | The quarterly EMA-5 — the zone that has caught nearly every major dip this cycle. |
| SPX · 200-day average | 6,858 | The long-term trend line. |
| SPX · deep-value band (QEMA5) | 6,719 | The equivalent deep-support reference for the broad index. |
Framework read
Both of the framework's rollover triggers fired the same day — price and volatility. Calm credit kept it classified as 'orderly Path C', not shock.