Event Vol Isolation · Foundations
Free to readHow to Read the Event Vol Tool
Set the inputs, read the split between baseline and events, and check which catalysts your tenor actually spans. Three moves.
The tool takes a VolDex® reading and deconstructs it into the diffusive baseline and the scheduled events inside the window. Here's how to work it.
What every control does
Set the deconstruction inputs — the underlying and the tenor (typically 7 or 30 days). The VolDex® Deconstruction then shows the total implied reading split into the event-stripped baseline (diffusive vol) and the contribution of each scheduled event — FOMC, CPI, PCE, NFP, earnings — that falls inside that tenor. Each event is listed with its date and a flag for whether your tenor actually spans it.
Total VolDex® splits into the baseline and the events your tenor spans. Here NFP falls outside the 30-day window, so it contributes nothing.
What to look at first
Three passes. First, the split: how much of the total is baseline versus events? A reading that's mostly events is "expensive" for a reason that will vanish at the print. Second, the which events: is the premium a Fed meeting, an earnings date, a CPI — each behaves differently. Third, the spanning flags: are you accidentally counting an event that's outside your tenor, or missing one just inside it? The window's edges are where mistakes hide.
Two common misreads
Reading the chart is free. To pull your own: ETFs with ETF Analytics, single stocks with ETF + Equities, full deconstruction history via Everything.
See plans →Educational content from Nations Indexes. VolDex® is a registered mark of Nations Indexes. The figures above are illustrative. Nothing here is investment advice.