VIX closed Monday May 18 at 18.43, DOWN from Friday's ~19 - inside the 15-20 mid-zone, well below the 25 vol-expansion threshold. The Polymarket 6% Up-open framing implied a vol expansion that did not materialize.
Provenance — node opacity = source trust
- Evidence Strength
Strong- Evidence Observed At
- May 18, 2026 · 8:00 PM UTC
- Citation
- https://www.cboe.com/tradable_products/vix/
- Citation Source
cnbc- About Security
CBOE Volatility Index- Market Metric
Close Price- Observed Value
- 18.43