Home / Why & Vision
The Risk Atelier
The art carries the fear. The interface carries the control.
Entail Capital is a quantitative tail-risk house that communicates extreme scenarios the way a museum hangs a crisis painting: large, calm, exact. Composed urgency — every expressive moment counterweighted by a metric within the same view.
Domicile
Amsterdam, NL
Operating across DACH & Benelux.
Posture
Evidence-first
Methodology and limitations published before fees.
Coverage
8 regimes · 1923–2025
The Crisis Canon, runnable on your book.
If 80% of your net worth sits in one ticker, who actually modeled the day it breaks?
The thesis
Why does this exist?
Most advisory tools don’t model the tail. They optimize for the middle of the distribution — the 95% of days that behave — and treat the extreme as an afterthought, a footnote, a disclaimer. Entail Capital exists to invert that. We were built to architect the 5% case first: the correlated, fat-tailed event that erases paper wealth before you can liquidate.
That is the whole reason for the company. Everything else is implementation.
The gap
What does standard advice miss?
It misses the geometry of concentration. A bank’s risk report assumes diversified holdings and Gaussian moves — it quotes Value-at-Risk and stops. But a single-stock position through a lock-up has no diversification and a distribution with heavy tails, where Expected Shortfall can run materially above the headline VaR figure — the gap the quantitative method is built to measure. Standard advice optimizes returns; it does not stress-test failure modes. The gap is not a rounding error. It is the difference between a model that compiles and one that crashes under load.
What we build
What are we building?
Engineered resilience — a system that protects the downside before it optimizes anything else. The brand proof is the tail risk painting: ten historical crises, ten artists, value that visibly disappears from the canvas and then returns. It is the core claim made tangible. The painting carries the fear so the math doesn’t have to argue it. If a portfolio’s tail is smaller than feared, the diagnostic says so plainly; if it is larger, you see exactly where.
Provenance
Who is behind it?
Provenance, not a headshot. Entail Capital was founded by Jean-Maurice Henkel, a finance lecturer at Maastricht University School of Business and a PhD candidate researching tail risk. He built this because the advisory tools he taught with and tested against did not model extreme risk in any rigorous way — they could not answer the question he kept asking. The credibility here is the research lineage and the published method, not a face and a title. The closest doctrinal precedent is Spitznagel’s tail-hedging approach, which we adapt rather than resell.
Incentives
“Why trust a researcher over my bank?”
A bank sells you the distribution’s middle, because that is where its fee schedule lives. A researcher’s incentive is to be correct about the edges — including stating, up front, the 4.2% rate at which the method gives false comfort. You do not have to trust either of us. The diagnostic is yours to run, inspect, and break.
Run the diagnostic.
3 fields · 48-hour document · no call, no sequence.
Frequently asked questions
What does it cost to get a tail-risk diagnostic?
The initial diagnostic is a document, not a paid engagement: three fields in, a written assessment back inside 48 hours. There is no call and no follow-up sequence attached to it. You decide what happens next once you see your own numbers.
Who built Entail Capital’s tail-risk method?
Entail Capital was founded by Jean-Maurice Henkel, a finance lecturer at Maastricht University School of Business and a PhD candidate researching tail risk. The credibility is the research lineage and the published method, not a face and a title.
Who is this actually for?
It fits holders of concentrated positions — typically when one ticker carries the majority of net worth, often through a lock-up. A bank’s diversified-portfolio assumptions break on that geometry; this method is built for exactly that case rather than the broad middle of the market.
When does the method give the wrong answer?
It states its own failure rate up front: the diagnostic gives false comfort at a 4.2% rate. That is the honest edge case — a tail it reads as smaller than it turns out to be. We publish the number rather than hide it.
How fast do I get results, and is there an obligation?
The written diagnostic returns within 48 hours of three submitted fields, with no call and no obligation. It is yours to run, inspect, and break before any further conversation.