# Risk, Sizing & Exits > Position sizing, the stop and exit taxonomies, trade analytics, and execution. Trade entries get the attention, but sizing and exits shape what an idea is actually worth. This part of the library covers the machinery of risk management: how much to put on, where the trade is proven wrong, and how to get out, whether through fixed targets, scaling out in pieces, or trailing methods that protect open profit while a trend runs. Measurement and execution tie these choices together: the R-multiple framework expresses every outcome in units of initial risk, so sizing, stop distance, and exit style can be compared on equal footing, and order mechanics turn the plan into instructions a broker can execute. Not everything here is settled; averaging down remains genuinely contested, defensible in some mean-reversion frameworks and treated as a cardinal error in many risk-first ones. ## Position sizing Decides how much capital each trade gets, from fixed-fractional risk and volatility-targeted sizing to pyramiding, dollar-cost averaging, and the debated practice of averaging down. - [Fixed Fractional](https://www.luxalgo.com/library/concept/fixed-fractional.md): 1 implementations - [Fixed Ratio](https://www.luxalgo.com/library/concept/fixed-ratio.md): 1 implementations - [Volatility-targeted Sizing](https://www.luxalgo.com/library/concept/volatility-targeted-sizing.md): 1 implementations - [Sizing Bases](https://www.luxalgo.com/library/concept/sizing-bases.md): 1 implementations - [Portfolio-aware Sizing](https://www.luxalgo.com/library/concept/portfolio-aware-sizing.md): 1 implementations - [Pyramiding](https://www.luxalgo.com/library/concept/pyramiding.md): 1 implementations - [Averaging Down](https://www.luxalgo.com/library/concept/averaging-down.md): 1 implementations - [DCA](https://www.luxalgo.com/library/concept/dca.md): 1 implementations - [Martingale / Anti-martingale](https://www.luxalgo.com/library/concept/martingale-anti-martingale.md): 1 implementations - [Kelly Criterion](https://www.luxalgo.com/library/concept/kelly-criterion.md): reference entry - [Optimal F](https://www.luxalgo.com/library/concept/optimal-f.md): reference entry - [Max Heat](https://www.luxalgo.com/library/concept/max-heat.md): build pending ## Stop taxonomy Catalogs the ways to define where a trade is wrong, whether at a structure level, at a volatility-scaled distance, at a fixed amount, or placed with an eye on where resting stops tend to pool. - [Structure Stop](https://www.luxalgo.com/library/concept/structure-stop.md): 1 implementations - [Volatility Stop](https://www.luxalgo.com/library/concept/volatility-stop.md): 1 implementations - [Fixed Stops](https://www.luxalgo.com/library/concept/fixed-stops.md): 1 implementations - [Breakeven Move Rules](https://www.luxalgo.com/library/concept/breakeven-move-rules.md): 1 implementations - [Mental vs Hard Stop](https://www.luxalgo.com/library/concept/mental-vs-hard-stop.md): 1 implementations - [Stop Placement vs Liquidity Pools](https://www.luxalgo.com/library/concept/stop-placement-vs-liquidity-pools.md): 1 implementations - [Elder SafeZone Stop](https://www.luxalgo.com/library/concept/elder-safezone-stop.md): 1 implementations - [Pattern-invalidation Stop](https://www.luxalgo.com/library/concept/pattern-invalidation-stop.md): build pending - [No-stop Hedging](https://www.luxalgo.com/library/concept/no-stop-hedging.md): reference entry ## Trailing systems Compares methods for ratcheting a stop behind a trade as it moves favorably, so the exit level improves as the trend develops. - [Trailing Method Taxonomy](https://www.luxalgo.com/library/concept/trailing-method-taxonomy.md): 11 implementations ## Exit taxonomy Covers how trades are wound down, from profit-target styles and scaling out in pieces to stop-and-reverse systems that flip direction instead of going flat. - [Profit Target Taxonomy](https://www.luxalgo.com/library/concept/profit-target-taxonomy.md): 5 implementations - [Scaling Out](https://www.luxalgo.com/library/concept/scaling-out.md): 1 implementations - [Non-price Exits](https://www.luxalgo.com/library/concept/non-price-exits.md): 1 implementations - [Stop-and-reverse](https://www.luxalgo.com/library/concept/stop-and-reverse.md): 1 implementations ## Trade & account analytics Provides the scorekeeping, using R-multiples to normalize results and loss-control rules to contain the damage from losing streaks. - [R-multiple Framework](https://www.luxalgo.com/library/concept/r-multiple-framework.md): 3 implementations - [Loss-control Rules](https://www.luxalgo.com/library/concept/loss-control-rules.md): 1 implementations - [Risk of Ruin](https://www.luxalgo.com/library/concept/risk-of-ruin.md): reference entry - [Equity-curve-based Throttling](https://www.luxalgo.com/library/concept/equity-curve-based-throttling.md): reference entry - [Prop-firm Rule Mechanics](https://www.luxalgo.com/library/concept/prop-firm-rule-mechanics.md): build pending - [MAE/MFE-informed Management](https://www.luxalgo.com/library/concept/mae-mfe-informed-management.md): reference entry ## Orders & execution Translates the plan into broker instructions, from basic order types to combined constructs like brackets and one-cancels-the-other groups. - [Order Types](https://www.luxalgo.com/library/concept/order-types.md): 1 implementations - [Order Constructs](https://www.luxalgo.com/library/concept/order-constructs.md): 1 implementations - [TWAP/VWAP/POV Execution](https://www.luxalgo.com/library/concept/twap-vwap-pov-execution.md): 1 implementations - [Execution Cost Modeling](https://www.luxalgo.com/library/concept/execution-cost-modeling.md): 1 implementations - [Exchange Order Flags](https://www.luxalgo.com/library/concept/exchange-order-flags.md): build pending --- Source: https://www.luxalgo.com/library/family/risk-exits/ (LuxAlgo Library). Free to use with attribution: https://www.luxalgo.com/library/license/