Research Turbulence, absorption, and the anatomy of fragility

Turbulence, absorption, and the anatomy of fragility

Crashes are rarely about how far markets fall on a given day. They're about markets starting to move together — and there are ways to measure that before it hurts.
Risk July 2026·5 min read
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Diversification dies exactly when you need it

The promise of a diversified portfolio rests on assets not moving together. The tragedy of every major crisis is that they do: in calm markets cross-asset correlations are low and forgiving; in stressed markets they lurch toward one, and a portfolio that looked diversified behaves like a single leveraged bet. Fragility, properly defined, isn't how much markets are falling — it's how unified they've become.

That's measurable, and the measurements have been in the institutional literature for years. Regime Compass publishes two of them daily across its eleven markets.

Turbulence: how abnormal is today?

Statistical turbulence asks a subtler question than "how big was the move?" It asks how unusual today's pattern of moves is, given history — a day when equities, gold and crypto all lurch in unfamiliar directions relative to each other scores high even if no single move looks dramatic. Days like that are how regime breaks announce themselves: relationships fail before levels do.

We report it as a percentile against each market's own history, because "turbulence at the 95th percentile" is a sentence an investment committee can act on, and raw index values aren't.

Absorption: how concentrated is the system?

The absorption ratio measures how much of the system's total variance is being driven by a small number of common factors. Low absorption means markets are dancing to their own tunes — idiosyncratic, healthy, diversifiable. Rising absorption means one force is increasingly driving everything, and the system has become brittle: a shock to the common factor propagates everywhere at once.

Turbulence tells you the storm has arrived. Absorption tells you the forest has gone dry.

The two together are more useful than either alone. Quiet markets with rising absorption are the genuinely dangerous configuration — nothing looks wrong on the surface while the preconditions for contagion assemble underneath. That combination is what our systemic dashboard is built to surface, and it's a reading a price chart simply cannot give you.

How we'd suggest using it

See today's turbulence and absorption readings →
Research notes discuss ideas, not recommendations. Nothing here is investment advice — see the Disclaimer and Methodology.

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