Analysis
Post-mortem culture: learning from bad calls
A structured investment decision review process turns a losing trade into a transferable lesson — if the review separates decision quality from outcome.
Author
Karim Al-Rashid
Independent editorial contributor covering property finance, housing markets, architecture and market data.
Articles by Karim Al-Rashid
Investing
A high backtest Sharpe ratio proves little: what real validation requires
Reported Sharpe ratios inflate with every unreported trial, and the corrections that account for this are arithmetic, not opinion.
Investing
How many signals were tested before this one worked?
Multiple testing turns luck into apparent skill. What the correction procedures control, the hurdles the replication literature settled on, and what a corrected…
Investing
What a fund's turnover ratio tells you, and what it doesn't
Turnover measures the pace of trading in the portfolio — a fact with predictable cost and tax consequences, not a verdict on skill.
Investing
What should robo-advisor rebalancing claims come with?
Automated rebalancing is real and rule-based — the measurable question is what the rule is and what it costs against doing it yourself.