Trends/Relative strength, cycles and structure

Elliott wave impulse

A five-part move in one direction, with three pushes and two pullbacks between them.

Relative strength, cycles and structureBest on 1Y, 3Y, MAXAlso called five-wave sequence
Elliott wave impulse diagramIllustration of the Elliott wave impulse shape. It is a sketch, not real price data.12345
Illustration of the Elliott wave impulse shape. It is a sketch, not real price data.

What it shows

In Elliott wave theory, a trend moves in five waves: waves 1, 3 and 5 go with the trend and waves 2 and 4 go against it. Rules from Frost and Prechter: wave 2 never retraces more than all of wave 1, wave 3 is never the shortest, and wave 4 does not overlap wave 1.

Counting waves needs judgement, and different analysts count the same chart differently. We show the rules as a checklist on the swings found.

How we find it

The same code that draws it on your chart follows these steps, with the same result every time.

  1. Find 6 consecutive swing points with the zigzag.
  2. Check wave 2 does not go below the start of wave 1.
  3. Check wave 3 is not the shortest of waves 1, 3 and 5.
  4. Check wave 4 does not enter the range of wave 1.

Starting values: Swings 6 points; Rules 3. These are proposed and will be tuned on real price data before launch.

How to read it

  • Numbers mark the waves.
  • Waves 1, 3 and 5 go up.
  • Waves 2 and 4 pull back.

Status labels you may see

LabelWhat it means
All rules passThe three rules hold.
A rule failsAt least one rule fails.
No countNot enough swings.

What cancels it

Cancelled when a rule fails.

What traders check next

  • Wave lengths.
  • Fibonacci ratios between waves.
  • Alternative counts.

Limits

  • Highly subjective.
  • Wave counts change after the fact.
  • Rules passing does not mean a wave count is right.

Try it in forecastviz

  • Open any ticker and choose Relative strength, cycles and structure → Elliott wave impulse in the left menu.
  • Switch between 1Y, 3Y, MAX to see how the picture changes.
  • Compare with ZigZag swings and Fibonacci retracement on the same chart.

Questions

Is it a prediction?

No claim. Counts are interpretations of the past.

Why 5 waves?

That is how the theory describes a trend.

Related trends

Further reading

  • O'Neil, How to Make Money in Stocks
  • Levy, The Relative Strength Concept of Common Stock Forecasting
  • Pring, Technical Analysis Explained
  • Frost and Prechter, Elliott Wave Principle
  • Hank Pruden, The Three Skills of Top Trading
  • Hirsch, Stock Trader's Almanac

Educational only. Not financial advice, and not a price forecast. Charts are drawn by code from past price data, which may be delayed.