What if a closing-auction glitch corrupts trillions in passive-fund NAVs?
A closing-auction glitch mispricing index-level closes corrupts NAVs for trillions in passive funds — the trade is operational chaos, mismarked ETF/index NAVs, and a temporary trust hit to the primary venue, forcing re-struck prices. Rhymes with the 2013 Nasdaq 'Flash Freeze', the 2015 ETF NAV dislocations, and the 2010 Flash Crash, where mechanics not fundamentals broke pricing. Skeptical: this is a fixable operational event that reverses once prices are re-struck; the persistent high-beta crypto selloff overstates a transient plumbing failure.
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 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. A glitch in the primary closing auction misprices index-level closes, corrupting NAVs for trillions in passive funds. The trigger decomposes into signed root‑shocks — Financial conditions ▲ · Risk appetite ▼ — which propagate through our causal graph to the markets below.