Behavioural Bias Is Still a Portfolio Risk

AllianzGI’s Matt Toms and Michael Stamos argue that behavioural mistakes remain a persistent drag on asset allocation and can be mitigated through stronger decision-making frameworks.

• The report highlights key biases including recency bias, loss aversion, inertia, herding, and groupthink as recurring threats to portfolio discipline.
• Allianz points to tools such as capital market assumptions, trend signals, structured reviews, and formal challenge mechanisms to improve process quality.
• In more volatile markets, behavioural discipline may increasingly act as a source of repeatable investment edgerather than just risk control.

Can better process become a source of outperformance? The full report explores how investors can reduce bias without sacrificing conviction.