Elliott wave impulse
A five-part move in one direction, with three pushes and two pullbacks between them.
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.
- Find 6 consecutive swing points with the zigzag.
- Check wave 2 does not go below the start of wave 1.
- Check wave 3 is not the shortest of waves 1, 3 and 5.
- 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
| Label | What it means |
|---|---|
| All rules pass | The three rules hold. |
| A rule fails | At least one rule fails. |
| No count | Not 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.