The board reads STRAIN. VIX at 16, credit spreads near their tightest on record. The pipes and the price screens disagree — and extreme value theory says the disagreement has no ceiling.
The composite reads STRAIN, 46 out of 100, on 100% coverage. Nothing on the price screen agrees. VIX sits at 16. High yield spreads are at the 6th percentile of their own history. If you only watched the market's own instruments, today would look calm.
The plumbing does not look calm. Reserve balances are drifting toward the ample floor, the overnight reverse repo facility that absorbed $2.5 trillion in 2022 now holds about $3 billion, and a balance-sheet trend alarm has been running since May. On the board, plumbing indicators sit at the 76th percentile of their history while market indicators sit at the 27th. That gap has a name here: the Tell. It reads +49, and it reads plumbing leads price.
Most of the board measures where stress is now. The Rogue Wave engine asks a different question: how bad can it get. It fits extreme value theory — a peaks-over-threshold GPD — to every funding-stress shock since 2018, 61 declustered waves over 5bp on 2,059 trading days of the SOFR−IORB spread.
The tail shape parameter comes back at ξ = 0.64. In plain terms that is a heavy tail with no ceiling. The largest spike in the entire sample, 305bp, is explicitly not the largest the basin can produce. The 10-year return level sits at 106bp with a stated confidence band; the point of the estimate is that it extends past the worst thing that has already happened, with the uncertainty shown rather than hidden.
So the two numbers, side by side:
That is the whole disagreement. One of these two readings is wrong about the next six months.
This is not a forecast that the wave breaks tomorrow. The physics layer separates the forced response (how loud the basin rings to the known calendar) from the free decay (how fast it settles on ordinary days), and neither is screaming today. The Rogue Wave finding is a statement about the shape of the tail, not its timing. The backtest lab publishes what this board has missed — March 2020's speed, April 2025 — right next to what it caught early. Read the misses before you weight the hits.
Here is where the desk lands on it, and the specific things being watched.
When the Tell has run above +40 with plumbing leading price by this margin, the historical pattern in the PROOF replay is not an immediate break but a widening of the distribution of outcomes — the calm persists until it doesn't, and the transition is fast when it comes. The dates that matter next are the settlement crunches on the calendar and the month-end turn at July 31, where the forcing stacks on a basin whose shock absorber (RRP) is already empty.
The one-line version: this is a setup, not a trigger. A thin-tailed vol market sitting on top of a fat-tailed funding statistic is exactly the configuration that has preceded every plumbing-led episode this board has on record — and none of the level-based market instruments would tell you it is there. That is the entire reason the board exists.
Not advice. A reading. Check the numbers yourself — every one of them is on the free board, and the method is printed under each engine.