Rebalancing a crypto portfolio: when and how

A portfolio drifts. The coin that doubled is now twice its planned share; the one that halved is half. Rebalancing means bringing the weights back to a plan: selling part of what grew and adding to what lagged.

Why bother

• Risk creeps up unnoticed. One winner can quietly become half the portfolio — and half of your risk.
• It locks in part of a move. Trimming a winner turns paper profit into a real one.
• It forces a decision. Without a rule, rebalancing never happens at the right moment.

Two ways to decide when

By calendar — once a month or a quarter, whatever the market does. Simple and disciplined, but it ignores everything in between.

By threshold — when a weight drifts beyond a band, say ±5 percentage points from the target. It reacts to the market rather than to the date, and in a market as volatile as crypto it usually fires more often.

Many people combine them: a check on a schedule, action only past the threshold.

Target weights and sector caps

Start from shares that match your intent — for example, a core of bitcoin and ether and a smaller satellite of altcoins. Then add sector caps: no more than a set share in one narrative (AI, memes, layer-2s), because coins of one sector tend to rise and fall together. Five AI coins are closer to one big bet than to five.

Costs

Every rebalance is a trade: fees, spread and, in many countries, a taxable event. A band that is too tight turns into constant churning. Wider bands and fewer, larger adjustments usually cost less.

A crypto twist: look at the room left

Classic rebalancing looks only at weights. In crypto the coins also differ in how much of their move is left. A coin that grew to 15% of the portfolio after a run may have little room left; one at 5% may be just getting started. Rebalancing by weight alone would sell the first and buy the second only because of where their weights ended up.

A complementary view is to ask which position has run out of room and which still has some, and to move money between them. That is what AxiPivot rotation does: it compares your positions and proposes swaps, taking sector overlap into account, with a limit per sector in the portfolio.

Keep the structure honest

• Separate portfolios by intent — long-term and speculative — so that rebalancing one does not drag the other along. AxiPivot keeps several portfolios, and rotation lets you choose which of them take part.
• Log transactions, so entry prices and PnL stay real.
• Track wallets automatically if you hold on-chain: wallet balances sync on their own.

For analysis, not for trading. Nothing here is financial advice.