What if defaults send business-development companies' NAVs into freefall?
A default wave forcing BDCs to mark NAVs lower is a direct middle-market credit read — short the BDC complex and HY, as falling marks choke new private-credit lending into a slowing cycle. Rhymes with 2015-16 energy-driven BDC NAV cuts that gapped names like Prospect/FSK to deep discounts. Forward angle: today's private-credit book is far larger and less price-discovered than in '08, so marks lag reality — the repricing is slower but deeper.
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 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. A wave of portfolio-company defaults forces business-development companies to mark down NAVs, collapsing share prices and choking middle-market credit. The trigger decomposes into signed root‑shocks — Credit spreads ▲ · Recession signal ▲ · Risk appetite ▼ — which propagate through our causal graph to the markets below.