What if Russia sinks a NATO-flagged ship in the Black Sea?
Russia sinking a NATO-flagged vessel in the Black Sea forces retaliation deliberations: VIX +16, Nasdaq -7, crypto-beta dumps on direct-confrontation risk. Rhymes with the Moskva sinking and grain-corridor strikes of 2022, which spiked European and food risk but stayed regionally contained. Transmission runs through grain/energy shipping and EUR. Forward angle: a NATO flag (not Ukrainian) on the hull is what makes this Article 5-adjacent, so the diplomatic off-ramp is narrower than the 2022 maritime incidents markets learned to fade.
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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 0–6 months 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…
What it would mean
If this plays out, it is a risk-off shock. Russia sinks a NATO-flagged vessel in the Black Sea, forcing alliance retaliation deliberations. The trigger decomposes into signed root‑shocks — Geopolitical risk ▲ · Risk appetite ▼ — which propagate through our causal graph to the markets below.