LessonsIndicator atlasFlow: who is aggressive

Bursts, walls and icebergs

Clashes between participants computed from public trade data, without guesswork.

How we compute it

Burst: small orders from at least 4 different takers on one side within 2 seconds, together above a threshold. Wall: one maker at one price absorbed more than a threshold from at least 3 orders. Iceberg: a wall that absorbed at least 2× more than the whole level ever showed in the book (an order refreshed after each fill).

How to read it

  • A wall at the level where price stopped explains why it stopped.
  • An iceberg is hidden liquidity: the book showed less than was really resting.

Traps

  • A wall can disappear at any moment; it describes what happened, it is not a promise.

Combine with

  • With the heatmap and DOM: visible liquidity versus liquidity actually absorbed.

In Charts

Indicators → Bursts and walls

See it in LessonsOpen Charts