Money management for futures traders is done by J.Nauzer Balsara.

Distills complex theories for the benefit of the average trader with little or no background in finance or mathematics by offering a wide range of valuable, practical strategies for limiting risk, avoiding catastrophic losses and managing the futures portfolio to maximize profits. Why most traders lose at the futures game most of the time; why most mechanical trading systems are apt to fail; how to make stop-loss orders work for, rather than against you; the pros and cons of options versus futures trading are some of the topics explored.

The back cover.

The money management skills of the trader and the effectiveness of the system used are crucial to success in trading. Money management is important, but little has been written about it. Money Management Strategies for futures traders is the first practical work on this topic in years. Comprehensive in scope yet simple in its approach, it is the first modern hands-on guide to money management that shows you how to measure and limit risk without compromising the huge potential for earnings that makes the futures market so attractive. It explains how to use logic. The laws of probability can be used to improve your odds of success. Money Management Strategies for futures traders takes you beyond theory to offer proven, original techniques and strategies that work in today’s turbulent markets. The book explains why most traders lose at the futures game and why mechanical trading systems are doomed to failure. The rules of probability are applied to trading. It shows you how to make stop-loss orders work for you. Diversification can greatly limit your risk. Money Management Strategies for Futures Traders deals with a subject no trader in today’s markets can afford to overlook, and is an indispensable tool for futures traders with little or no background in finance or probability.