Risk management tools

 
What are the best risk management tools you have used in trading and why ?
 

As an example:

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Money Management


The forum

  1. MM (money management) calculation, indicators, discussion, tools: calculate your lot size and so on. Original thread with several versions.
  2. MoneyManagement EA is on this thread: it shows you market information and money management on the chart. 
  3. Forex Money Management, Part 1 - good small thread
  4. Useful money management expert - the thread with the EA 
  5. Stop Your Mind From Causing You to Take Profits Too Soon - the post with the educational video 
  6. Money Management: How to Determine an Initial Stop Level - the post with the educational video 
  7. Why Most Traders Lose Money and The Solution - the post with the educational video

The articles

  1. Statistical Verification of the Labouchere Money Management System
  2. Money management in trading
  3. Functions for Money Management in an Expert Advisor 
  4. Fallacies, Part 1: Money Management is Secondary and Not Very Important 
  5. MQL5 Wizard: How to Create a Risk and Money Management Module 
  6. Money Management Revisited 
  7. Cross-Platform Expert Advisor: Money Management 
  8. Limitless Opportunities with MetaTrader 5 and MQL5 
  9. Money Management by Vince. Implementation as a module for MQL5 Wizard

CodeBase

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I don't know if you're talking about manual trading or automated trading. Best money management is a time filter to filter out volatile hours, and a lot multiplier based on risk percentage. Then a trailing stop is obviously good money management if you don't set take profit.