Sizing a Position from a Fixed Loss Budget and Stop Distance

Summary

LotLoss is a basic position-sizing tool for calculating a lot size from two inputs: the amount of money a trader is willing to lose and the stop-loss distance in points. The principle is to set the loss budget first, then scale the position so that a move to the stop corresponds to that budget. The example uses a short AUDJPY trade, a stated risk budget of 1,000 USD, and a stop distance of 2,424 points; it says a 0.45-lot position would lose that amount if the stop is reached.

The document gives an illustration rather than a complete sizing method. It does not explain the currency conversion, pip or point value, contract specifications, fees, slippage, or how lot size changes across brokers and instruments. Those details affect the actual loss, so the stated example cannot be generalized without checking instrument-specific values. It also addresses the planned loss at a stop, not the possibility of execution beyond the stop price.

Key ideas

• The tool derives lot size from a cash risk budget and stop distance in points.
• The example links a 1,000 USD risk budget and a 2,424-point stop distance to a 0.45-lot AUDJPY position.
• Accurate sizing depends on point value, contract terms, and currency conversion details not explained in the document.
• A stop-based estimate does not account for slippage or execution beyond the stop price.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.