Portfölj & risk
Building a crypto portfolio without guesswork
A portfolio is a plan with percentages, a horizon and limits — not a pile of impulses. This is the framework we use at Block #9 to place crypto next to savings, equities and pensions.
Start with total wealth, not with the coin
The first question is never which coin to buy, but what share of your total wealth you want exposed to crypto. Add up savings, investments, pension and home equity. Crypto is a position inside that whole, not a separate universe.
For most retail investors a defensible allocation sits between 1% and 10% of investable assets. Below 1% you barely feel the effect; above 10% crypto determines the mood of your entire portfolio.
Set aside three to six months of fixed costs in cash before putting a single euro into crypto. That buffer is exactly what stops you from having to sell at the worst moment.
- First set your cash emergency buffer
- Then choose a crypto percentage of investable assets
- Write the percentage down with a date and a reason
The core-satellite structure
Split your crypto allocation into a core and satellites. The core is what you intend to hold for years and is least speculative: in practice bitcoin and ethereum. Satellites are smaller, higher-risk positions.
A common split is 70/20/10: 70% core, 20% large alternative networks, 10% experimental. The exact number matters less than the discipline that satellites never quietly overgrow the core.
Give every satellite a maximum up front. If you decide no single experiment exceeds 2% of your crypto, you no longer need willpower during a hype.
Horizon and purpose per position
Note for every position why you hold it and when you will review it. A ten-year hold demands different behaviour than a six-month event trade.
Without a purpose every price move becomes a reason to act. With one, most noise becomes irrelevant. Put review moments in your calendar, for example quarterly.
Correlation: crypto is not an island
Bitcoin often moves with technology equities and the global liquidity cycle. If you already own a lot of growth stocks, a large crypto position adds less diversification than you think.
Look at the portfolio as a whole: how much of your wealth depends on the same scenario of falling rates and ample liquidity? Gold, short-dated bonds and cash are the counterweights.
Write it down and review
Put your plan on one page: target allocation, maximum position sizes, rebalancing moments and the conditions under which you change your mind.
Review once a year, or when your life changes — a house, a child, a new job. Not when the price changes.
Vanliga frågor
What crypto percentage is sensible?
For most retail investors 1% to 10% of investable assets is a defensible range, depending on horizon, income and the drawdown you can sit through without selling.
Do I need altcoins?
No. A bitcoin-and-ethereum-only portfolio is entirely defensible. Treat altcoins as satellites with a predefined maximum.
What do I do after a big rally?
Rebalance: sell the part that grew beyond your target percentage and restore the allocation. You take profit by rule instead of by feeling.
Can I combine this with ETFs?
Yes. Many readers hold a broad world ETF as the base and use crypto as a small satellite, which makes the total portfolio more robust.
Läs vidare
DCA or lump sum
Spreading purchases versus investing all at once: what the numbers say, when DCA wins and how to build a schedule you keep.
Rebalancing without emotion
When and how to return your crypto portfolio to target weights — with bands, costs and tax in mind.
Position sizing: calculate your maximum loss
Size positions from maximum loss instead of gut feel, with formulas, examples and limits per risk profile.