What if the Indonesian rupiah breaks through 19,000 to the dollar?
USDIDR through 19,000 forcing emergency Bank Indonesia hikes is an EM-outflow defense: short the rupiah and Indonesian rate-sensitives as foreign bond money exits, with global high-beta catching the de-risking. Rhymes with the 2013 taper-tantrum 'Fragile Five' episode and Aug-2024, when BI hiked to defend the IDR. Transmission: foreign ownership of Indonesian government bonds makes the currency acutely flow-sensitive. Forward: lower foreign-bond ownership than 2013 makes the rupiah less fragile, but a 19k print signals reserves are stretched.
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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. Foreign bond outflows send USDIDR through 19,000, forcing Bank Indonesia into emergency hikes and heavy intervention. The trigger decomposes into signed root‑shocks — FX carry appetite ▼ · Financial conditions ▲ · Risk appetite ▼ — which propagate through our causal graph to the markets below.