
Step 1
Recent outcomes are overweighted in forecasts
Investors tend to treat the last few months as representative, even when regime conditions are unstable.
Keyword: recency bias investing research
A concise research brief on recency bias, how it distorts portfolio decisions, and practical safeguards for long-term investors.
Recency bias causes investors to extrapolate the latest trend too far into the future. This often drives buying late in cycles and selling late in drawdowns.

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Step 1
Investors tend to treat the last few months as representative, even when regime conditions are unstable.

Step 2
Recency-driven reallocations commonly increase risk near highs and reduce risk near lows, harming long-term compounding.

Step 3
Including long-cycle base rates and scenario ranges improves calibration and lowers narrative overreaction.
Investors tend to treat the last few months as representative, even when regime conditions are unstable.
Recency-driven reallocations commonly increase risk near highs and reduce risk near lows, harming long-term compounding.
Including long-cycle base rates and scenario ranges improves calibration and lowers narrative overreaction.

Check whether your allocation changes rely mostly on recent returns instead of long-term evidence and base rates.
Yes. It can cause over-optimism in rallies and over-pessimism during drawdowns.
Use a mandatory base-rate section in every allocation review and avoid ad-hoc regime calls.
Add one base-rate checkpoint to your next portfolio review before making any allocation change.