To make these trade-offs concrete, it’s helpful to look at how stop-loss width impacts portfolio outcomes when different variables are held fixed. Particularly, think about a easy long-only trend-entry framework utilized to a broad fairness index. Positions are initiated when costs cross above a shifting common. Place measurement is held fixed, whereas stop-loss thresholds differ from very tight to comparatively vast ranges.
Utilizing every day S&P 500 (SPX) open, excessive, low, and shut costs as an information supply, I simulate 500 buyers coming into at random dates (2000–2005) and examine outcomes beneath totally different stop-loss widths and take-profit targets (15%–30%). Every curve summarizes the typical consequence throughout buyers (Determine 1).
The target is to not establish an optimum buying and selling rule or maximize historic returns. As a substitute, the objective is to look at how stop-loss width structurally influences win charges, payoff ratios, and cumulative capital development.
As stop-losses widen, win charges enhance. Trades are given extra room to soak up short-term noise, decreasing untimely exits.
Determine 1: Win Price as a Operate of Cease-Loss Width