What if US investment-grade spreads double from 100 to 200 basis points?
US investment-grade option-adjusted spreads double from ~100bp to ~200bp as recession fear and supply indigestion hit the index, echoing the late-2018 and March-2020 widenings.
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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 6–18 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. US investment-grade option-adjusted spreads double from ~100bp to ~200bp as recession fear and supply indigestion hit the index, echoing the late-2018 and March-2020 widenings. The trigger decomposes into signed root‑shocks — Credit spreads ▲ · Financial conditions ▲ · Recession signal ▲ · Risk appetite ▼ — which propagate through our causal graph to the markets below.