• Designed by Wells Wilder for the daily commodity charts, the ADX is now used by technical traders in several markets to gauge the strength of a trend.

  • ADX uses a positive (+DI) and negative (-DI) direction indicator in addition to the trend line.
  • The trend is valid when ADX is above 25; according to Wilder, the trend is weak or the price is not trending when the ADX is below 20.
  • The absence of a trend does not mean that the price is not moving. This may not be the case, but the price may also change trend or be too volatile for a clear direction to be determined.