Bill Williams indicators

Gator Oscillator

Shows the Alligator's mood as bars: how far apart its three lines are, above and below a zero line.

2 min read · Try it on a live chart ↗

The idea in plain words

When the Alligator's lines spread apart, a trend is under way; when they come together, the market rests. Gator draws those distances as bars so the phases are easy to see.

How it is calculated

Upper bars: the distance between Jaw and Teeth. Lower bars: the distance between Teeth and Lips (drawn below zero). Green when a bar grows, red when it shrinks.

Upper = |Jaw − Teeth|
Lower = −|Teeth − Lips|

How to use it

  • Red bars on both sides: sleeping (no trend). Green on both: eating (strong trend).
  • Mixed colours: the alligator is waking up or getting full; watch for a phase change.

Drawing conclusions

  • Gator does not show direction; check the Alligator or the price for that.

Example

After a long series of red bars, both sides turn green and grow: a trend has begun.

Prices in examples are illustrative.

Watch out for

  • Lags the price, like the Alligator.

A little history

Bill Williams, "New Trading Dimensions" (1998).

Educational content only. No indicator or pattern predicts the future, and nothing here is investment advice.