Geopolitics risk-off · Tail risk
A what‑if from the future

What if a central-bank governor is assassinated mid-crisis?

Decapitating a central bank mid-crisis removes the implicit policy backstop, so the cleanest move is a VIX spike that mechanically forces risk-parity and vol-target deleveraging — high-beta Nasdaq/semis get sold first, credit spreads widen second. Rhymes with the Lehman weekend (Sep 2008), where loss of a perceived backstop gapped the VIX above 40 and froze funding. Forward angle: unlike 2008, today's options-dealer gamma and 0DTE flows can amplify the first-day air-pocket far faster than the cash market.

3%
our model probability
over Tail risk
prediction markets — the market's odds
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Anchored to measured history 3% · 90% range 0–8% · 40 dated precedents behind it — a wider range means thinner evidence

Every number ships with its receipt — the odds, the range, the precedents, and a public grade at Reality Check. The statistical machinery that produces it is proprietary.

The butterfly cascade

How this trigger trickles across markets, left → right — the root shock, its first‑order moves, then the ripple effects. Drag any node; tap a market for its real price history.

Resolution timeline — how this probability is moving

Our model's odds (electric blue) over time vs the market's (Polymarket, amber), from the past toward the Tail risk horizon. Each dot is a real macro event that nudged the probability — green pushed it up, red pushed it down. Tap a dot for the source. Loading the probability audit trail…

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What it would mean

If this plays out, it is a risk-off shock. A leading central-bank governor is assassinated or incapacitated mid-crisis. The trigger decomposes into signed root‑shocks — Geopolitical risk ▲ · Financial conditions ▲ — which propagate through our causal graph to the markets below.

Methodology. Probability and impact are anchored to history and scored against what actually happens — wins and losses, in public, at Reality Check. Market odds live from Polymarket & Kalshi. By Vikas Singh, Quantitative Strategist. Updated 2026-08-13.