How much data do I need for a stable analysis? (EOD)

Created by Andrea Bordoni, Modified on Wed, 29 Nov, 2023 at 6:01 PM by Andrea Bordoni

As a general rule you should try to analyse enough data so that ST can find a cycle 3 cycles longer than the cycle you want to trade. In order to ensure that ST finds that longer cycle, you should analyse enough data to find 4 of those cycles.

So for instance if you want to trade the 40 day cycle: 3 cycles longer is the 40 week cycle. Therefore you should analyse 4 x 40 weeks of data, 160 weeks, which comes to about 3 years of data.

(3 cycles longer than [Cycle to trade]) x 4

Please note that 3 cycles longer than refers to Hurst's nominal model and the order of cycles in that model. For reference the order of those cycles is:

  • 5 day
  • 10 day
  • 20 day
  • 40 day
  • 80 day
  • 20 week
  • 40 week
  • 18 month
  • 54 month
  • 9 year
  • 18 year


For more information take a look round the Hurst Cycles Trading Academy. There is also more information to be found in the Online User Manual.

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