Investment constitution: your rules in writing
In Metena, all your rules written in cold blood: thesis, action rules, invalidation conditions and money management. You reread it the day sticking to it gets hard.
Definition
The Constitution gathers everything you decide in advance: the thesis, the buying and selling rules, the invalidation conditions, the maximum size of each position and the reserve to keep.
It is written in a calm moment, when no position is under pressure. The day the market falls 20% in a week, you do not have to invent a rule: you reread the one you set, and decide whether you follow it.
A Constitution can change, but not in a rush. Changing a rule during a decline often amounts to deleting it at the moment it was meant to work.
Worked example
Excerpt: “70% BTC, 20% ETH, 10% in stablecoins. Buy €200 every Monday. No position above 25% of the portfolio except BTC. I exit ETH if the layer-2 thesis is invalidated. I do not change these rules less than 7 days after a fall of more than 20%.”
In Metena
The Constitution is the central document of your strategy in Metena. The trade journal compares each decision with these rules, and the discipline score measures how closely you followed them.
Notify me at launchRelated terms
- Thesis
- Your reason for investing, written down: why you buy, over what horizon, and what has to happen for you to be right. A clear thesis stops you improvising when the market moves.
- Invalidation condition
- The precise fact that would prove your thesis wrong and trigger your exit, for example “I exit if BTC closes two weeks below $20,000”. Writing it in advance stops you rationalizing it later.
- Money management
- Managing the size of your positions and your exposure: how much to risk per holding, what reserve to keep, which limits never to cross.
- Health score
- A number out of 100 that sums up the strength of your strategy: thesis, risk, discipline and money management. It breaks down pillar by pillar. It is not a price forecast.
Related guides
- Writing your investment thesis and invalidation conditions
- How to write a crypto investment thesis, turn it into rules and set invalidation conditions, with the real examples of Terra-LUNA and FTX in 2022.

Put these ideas into practice.
Write your strategy in a few minutes: Metena analyses it when you ask and explains each term in context.
Notify me at launchEducational content. It is not investment advice. Crypto-assets carry a high risk that can go as far as the total loss of capital.