What if Hungary fast-tracks its way into the euro?
A Tisza government entering ERM II with a binding 2030 euro target sparks a forint convergence rally and HGB compression — the trade is long HUF and receive Hungarian rates/long HGBs, with the risk-on equity cascade only a faint global echo. Rhymes with the pre-2007 EU-convergence trades (Baltics, Slovakia, Slovenia) when ERM II entry compressed yields and bid the currency. Transmission: EU/eurozone anchoring lowers Hungary's risk premium and funding costs; carry/credit improve. Forward angle: convergence rallies can overshoot then stall if entry criteria slip (cf. Hungary's repeated missed targets), so the receiver trade is most reliable at the announcement.
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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 1–3 years 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-on shock. New Tisza government enters ERM II and sets binding 2030 euro target, igniting a forint convergence rally and HGB compression. The trigger decomposes into signed root‑shocks — FX carry appetite ▲ · Credit spreads ▼ · Risk appetite ▲ — which propagate through our causal graph to the markets below.