QBMFX Academy

Portfolio Rebalancing Strategies

By QBMFX Academy · Updated · Editorial standards

Rebalancing restores a portfolio toward stated target weights. It manages allocation drift rather than guaranteeing that selling recent winners and buying laggards will improve return.

How it works

Choose a calendar or tolerance-band rule and account for costs, taxes, minimum sizes and cash flows. Distinguish rebalancing from changing the target itself. Where practical, contributions and withdrawals can reduce the trading needed to restore weights.

Worked example

A 10,000 portfolio targets 60% equities and 40% bonds. After equities rise to 7,000 and bonds remain 4,000, total value is 11,000 and equities weigh about 63.64%. Restoring 60/40 without new cash requires equity value 6,600 and bond value 4,400: sell 400 equities and add 400 bonds, before fees and tax.

Amounts, prices and scenarios are fictional teaching examples. They exclude any effects not explicitly stated and are not trade recommendations.

Limits and common mistakes

Frequent rebalancing can increase costs and tax realization. An original allocation may become unsuitable if cash needs or risk capacity change. Rebalancing is not a cure for a poor asset-selection process or an unsupported target.

Knowledge check

Is rebalancing the same as deciding to hold more equity permanently?

Read the explanation

No. Rebalancing returns to a target; a permanent target change is a new allocation decision that needs its own rationale.

References and further reading

These sources explain the underlying concepts and specifications. They do not endorse QBMFX Academy. Check the relevant market, protocol version and reporting rules before applying an example.