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How to Build a Crypto Portfolio: Weights, Coins and Rebalancing

A crypto portfolio isn't "buy everything that's going up". It's a plan: how much money goes into crypto, what weight each coin gets and what you do when the market falls. Here's how to build one from scratch without taking unnecessary risks.

Aspiro Editorial · 28.10.2026

Up to date as of October 2026. Crypto rules change (in Kazakhstan and elsewhere): before you act, check the platform's licence in your regulator's register and the current tax rules.

Step 1. How much to put into crypto at all

First, an emergency fund covering 3–6 months of expenses and no expensive debt. Only then crypto. The rule is simple: crypto gets money that you wouldn't be forced to sell at a loss if it dropped 70–80%. Drawdowns like that have happened more than once in the crypto market — more in the bitcoin halving and market cycles.

Step 2. Structure: core, satellites, reserve

Below is an example of the logic, not a recommendation. Everyone chooses their own weights based on their risk tolerance.

How BTC and ETH differ is covered in bitcoin or Ether. Why twenty coins is not diversification is explained in diversification explained simply.

Step 3. How to choose altcoins

• Age and track record. The project has survived at least one bear market.
• Liquidity. The coin trades on licensed platforms with decent volume.
• Tokenomics. Check for big unlocks that will release millions of new coins onto the market.
• What it's for. You can explain what the project does in two sentences. If you can't, don't buy it.
• No memecoins in the core. They run on hype — see altseason: how not to get burned.

A worked example

Prices are illustrative. Crypto portfolio: $5,000. The core is held long-term, and every altcoin gets a stop-loss set in advance: the risk per coin is no more than 1% of the portfolio, i.e. $50.

Three altcoins like this come to about $500, or 10% of the portfolio, and if every stop is hit you lose about $150, not half your money. For the core, write down a protective level in advance: the point where the "hold" idea stops working and you cut the position. The position size calculator makes the maths easy, and you can buy in instalments using a plan from the DCA calculator.

Step 4. Rebalancing

Say your plan is 70% core and 20% satellites. Altcoins rally and the satellites grow to 35%. Rebalancing means selling part of what has grown and bringing the weights back to plan. That way you lock in part of the result and stop the riskiest piece from taking over. Do it on a schedule or when a weight drifts by more than 5–10 percentage points — more in our glossary: rebalancing.

Platform, tax and records (Kazakhstan example)

• Platform. In Kazakhstan, buy through AIFC exchanges or crypto exchangers licensed by the National Bank — see licensed crypto exchanges in Kazakhstan. Elsewhere, use platforms licensed by your own regulator.
• Tax. In Kazakhstan, selling at a profit — including when you rebalance — counts as property income: 10% personal income tax (15% on the part of annual income above 8,500 MCI). Check your local rules if you live elsewhere.
• Records. Keep the dates and prices of all your purchases: without them, tax may be charged on the full sale amount. In Kazakhstan, owning crypto is a reason to file form 270.00 by 15 September.

Common mistakes

• Buying at the highs something that tripled in a week.
• No stops on altcoins — "it'll come back".
• Averaging down a losing altcoin with no plan until it's half the portfolio.
• No reserve — nothing to buy with in a drawdown, and you're tempted to sell everything.

What you are risking

The crypto market can fall 70–80% and take years to recover; altcoins can lose almost all their value or disappear entirely. Add platform risk, the risk of the stablecoins in your reserve and tax mistakes. A portfolio doesn't guarantee a profit — it only stops one mistake from wiping out all your money.

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