Two vol shocks in three days, and how the VIX curve told them apart

The first week of November 2026 gave a clean case study in reading the VIX term structure: two vol events in three days, and the curve told them apart in real time.

Three points on the curve

VIX9D covers the next nine days, the VIX 30 days and VIX3M three months. Event risk shows up at the front. Regime risk shows up at the back.

Into the vote

On 29 October, VIX9D sat under the VIX, 14.6 against 17.2. By the close on Monday 2 November it was 23.1 against 21.2. The election had moved into the front end, priced as a dated event.

Wednesday: the event bleeds

With the result in, VIX9D fell from 21.8 to 15.5 in one session. VIX3M eased only 2.5 points. The premium came out exactly where it had been put in. That is event vol: it bleeds.

Thursday: a regime

The S&P 500 fell 4.4%, a four-sigma day against Wednesday’s VIX. The VIX went from 16.6 to 28.2, VIX3M from 18.8 to 25.6. The back end repriced with the front. Not an event any more: the market was paying for a regime.

Postscript

By the close on Monday 9 November, the back end had given back more than half of it: VIX3M fell from 25.6 to 20.9. A regime does not normalise in two sessions. A positioning flush does.

The read I keep

When only the front is bid, let it bleed. When the back end follows, the move has a different nature, and position sizing has to follow. Reading both halves is the whole point.

The same week seen through the inversion: 5 November 2026: the VIX jumps 70% in one session.