{"id":1981,"date":"2025-09-12T12:44:12","date_gmt":"2025-09-12T02:44:12","guid":{"rendered":"https:\/\/diversiview.online\/blog\/?p=1981"},"modified":"2025-09-12T12:45:53","modified_gmt":"2025-09-12T02:45:53","slug":"portfolio-rebalancing-vs-portfolio-optimisation","status":"publish","type":"post","link":"https:\/\/diversiview.online\/blog\/portfolio-rebalancing-vs-portfolio-optimisation\/","title":{"rendered":"Portfolio Rebalancing vs Portfolio Optimisation"},"content":{"rendered":"\n
\"Portfolio<\/figure>\n\n\n\n

Which Moves the Needle on Risk-Adjusted Returns?<\/h2>\n\n\n\n

Portfolio rebalancing and optimisation both aim to improve portfolio outcomes, but they solve different problems: one maintains a chosen risk profile while the other recalculates target weights to improve the risk-return trade-off.<\/p>\n\n\n\n

A practical, tool-enabled workflow can combine both, using efficient frontier analytics to set targets and disciplined rebalancing to keep allocations on course as markets shift.<\/a><\/p>\n\n\n\n

Maintain vs Improve<\/a><\/h2>\n\n\n\n

Portfolio rebalancing restores target weights after market movements to keep risk aligned with a policy or mandate, typically via calendar or band\/threshold rules that are easy to explain and implement.<\/p>\n\n\n\n

Portfolio optimisation recalculates target weights using updated expectations for return, volatility, and correlations to locate positions on the efficient frontier that maximise expected return for a given risk or minimise risk for a target return.<\/a><\/p>\n\n\n\n

\"Portfolio<\/figure>\n\n\n\n

What is Portfolio Rebalancing<\/a><\/h2>\n\n\n\n

Portfolio rebalancing is the periodic process of buying and selling positions to return a portfolio\u2019s asset mix to predefined targets, thereby maintaining a chosen risk profile as markets push allocations off course.
<\/a>
Common approaches include calendar-based rebalancing (e.g., quarterly\/annually) and threshold or band rebalancing where trades trigger only when drift exceeds set bands, balancing simplicity and costs.
<\/a>
The benefits are risk control, behavioural discipline, and clear governance, while limitations include ignoring structural changes in returns and correlations if the target mix never updates.<\/a><\/p>\n\n\n\n

What is Portfolio Optimisation<\/a><\/h2>\n\n\n\n

Portfolio optimisation computes new target weights that sit on the efficient frontier, portfolios that deliver the highest expected return for each level of risk or the lowest risk for a given return, based on current estimates of returns, volatilities, and correlations. Watch our short video below on the efficient frontier and portfolio optimisation, or continue reading. <\/p>\n\n\n\n

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