The job
Early warning on systemic stress before crisis is obvious — so capital and operators can move before markets fully price the break.
That job is not the same as “publish a dated crisis call,” and it is not the same as “show me equity-option fear.”
Three layers desks already use
| Layer | Typical tools | Job | | --- | --- | --- | | Priced / market | VIX, MOVE, spreads, many FCIs | Read stress in prices | | News / narrative | GPR, geo desks, Top Risks | Read how loud geopolitics is | | Structural / sealed | Entropy Index | Read adaptive-system load on frozen physics |
Most “early warning indicators” literature lives in the first row. Entropy Index is built for the third. Detail: Structural vs market early warnings · VIX · GPR.
How the instrument speaks
Under V5-locked (1.19.0):
- Watch — earliest Crisis fashion. Notice. Do not size on Watch alone.
- Act — dual Crisis (load and gap together). Capital decision clock.
Same sealed formula on the live Index and every public case. See Watch versus Act.
Sealed proof (not forecast theater)
Watch and Act both lit dual Crisis by March 2008 — 6 months before Lehman.
That line is instrument behavior on a blind, period-correct reconstruction. It is not a claim that Entropy Index “called Lehman on a calendar date,” and it is not a return promise.
When this page is for you
- You already run VIX / spreads / geo and still miss structural load while the surface looks calm
- The IC asks for auditable physics, not only strategist narrative
- Agents need a regime gate before size (x402)