Position sizing, diversification, and protecting your capital.
4 guides12+ key termsTopic quiz available
The pre-decided exit that defines your risk before a trade goes wrong. The types of stop (hard, mental, trailing, guaranteed), how to place them by structure or volatility rather than by hope, why gaps mean a stop is not a guarantee, and the discipline of honouring them.

A practical guide to the discipline that protects investors: why avoiding ruin matters more than maximising gains, the brutal maths of large losses, position sizing, diversification, drawdowns, and matching risk to your goals.
The most important and most ignored decision in trading: how much to commit to a position. The percent-risk rule, the position-size formula that turns a stop into a share count, volatility-based sizing, and why how much you risk matters far more than what you buy.
The framework that ties wins, losses and probability into a single judgement of whether a strategy makes money. The risk/reward ratio, thinking in R-multiples, the expectancy formula, and why a strategy that loses more often than it wins can still be highly profitable.