Order Flow

Overview

Order flow is the study of actual orders: those resting in the book waiting to be filled, and those being executed against them. It is the most granular view of a market available, sitting underneath everything a candlestick chart summarises.

• Data Type: Raw market microstructure
• Primary Use: Short-term execution and reading intent at levels
• Best Timeframes: Intraday and below

The Order Book

The order book lists every resting limit order at each price.

• Bids: Buy orders below current price
• Asks (offers): Sell orders above current price
• Spread: The gap between the best bid and best ask
• Depth: How much size is resting at each level

A book with deep resting orders absorbs large trades with little price movement. A thin book moves sharply on modest size, which is why illiquid assets are so volatile.

Key Concepts

Liquidity Is a Target

Large resting orders are visible, and visible liquidity attracts price. If a large bid sits below, price often travels there, because that is where big orders can actually be filled.

Spoofing

Orders can be placed with no intention of being filled, purely to influence other traders, then cancelled before execution. A wall that vanishes as price approaches was never real support. This is why the book must be watched dynamically rather than read as a snapshot.

Absorption

When aggressive orders keep hitting a level but price does not move, someone is absorbing the flow with passive orders. Absorption at a key level is one of the more meaningful order-flow observations.

Icebergs

Large participants hide size by showing only a fraction of their order at a time. The visible book therefore understates true depth, and a level can hold far more than it appears to.

Why It Is Hard in Crypto

Crypto trades across dozens of venues simultaneously. The book on one exchange is a partial view, and activity elsewhere can move price regardless of what your screen shows. There is no consolidated tape as there is in regulated equity markets.

Psychology Behind Order Flow

Order flow shows intent stripped of narrative. It reveals who is willing to pay up, who is content to wait, and who is defending a price. It also shows deception, since the book can be used deliberately to mislead.

Confirmation Signals

• Absorption occurring at a level already significant on the chart
• Resting size that persists rather than appearing and vanishing
• Aggressive flow slowing as price approaches a level
• Agreement between the book and CVD

Weaknesses & Limitations

• Fragmented across exchanges, so no venue shows the full picture
• Spoofing makes the visible book unreliable
• Iceberg orders hide real depth
• Requires constant attention and is impractical for part-time traders
• Very steep learning curve relative to its benefit for most people

Example Use

A trader watching a support level sees repeated aggressive selling that fails to move price, indicating absorption. They use this to time a long entry that they had already planned from the chart, improving their fill rather than creating the trade idea.

Risk Management Notes

Order flow is a timing tool, not a strategy. It works best refining an entry you had already decided on from higher-timeframe analysis. Trading purely from the book, without structural context, is how most traders lose money quickly with this data.