Nature of risk
Sustainable investors place risk rules before profit goals, because survival is the condition for compound interest to flourish.
Foundational risk management is not intended to eliminate all possibility of loss. That is impossible in investing. The goal is to identify potential avenues for significant losses, limit the scale of losses, and keep investors in a position to continue when the market goes against expectations.
Analytical framework
The minimum set of rules should include each position weight limit, leverage limit, liquidity requirements, selling conditions, actionable drawdown level, review schedule and the principle of not using short-term money for long-term investments. Rules must be written before the market exerts emotional pressure.
A risk needs to be evaluated through three layers: probability of occurrence, severity of damage if it occurs, and ability to recover afterward. Many investors only focus on probability, for example 'this probability is low', but ignore that if it happens the consequences can break the entire plan.
Code of practice
Do not implement any strategy if you do not know what will cause you to reduce your position, stop out, or admit your thesis is wrong.
Risk rules should be written into specific actions: weight limits, leverage limits, minimum cash levels, rebalancing thresholds, selling conditions or review schedules. If the rule cannot be measured, it is easy to ignore when emotions run high.
Mistakes to avoid
Find return opportunities first and then think about risks after prices have dropped.
Great risks often accumulate when everything seems favorable. When short-term returns are good, it is easy for investors to increase positions, reduce cash or ignore conflicting data. Stress-test risk most carefully after a winning period, not just after a loss.