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advanced · TRADING LEARNING GUIDE

Chapter 1 — Introduction to Order Flow Trading

Resting liquidity ≠ executed volume
BID SIZEPRICEASK SIZE
—100.0360
—100.0235
—100.0120
45100.00—
8099.99—

Buy aggression → lifts offers · Sell aggression → hits bids

HYPOTHETICAL LEARNING DIAGRAM · NOT LIVE DATA

What is this concept?

Order flow studies executed trades and displayed orders at a particular venue. It separates aggressive execution from resting liquidity; neither reveals every participant or future price.

Daily learning workflow

1. Identify the instrument, venue and observation interval. 2. Read the chapter definition and reproduce its worked calculation. 3. Watch the supporting workshop and compare its platform conventions with your data. 4. Label ten events as an execution or a resting order. 5. Record what happened, what you inferred and what would invalidate your interpretation.

Evidence and interpretation

Keep three separate notes: observed transactions or book changes; your explanation of those observations; and a paper rule with a defined failure condition. Compare at least one counterexample. Do not turn an illustration into a live claim.

Worked example

Hypothetical worked example: An ask trade of 20 units and a bid trade of 10 units give 30 total units and +10 classified delta.

Common mistakes and limits

Do not treat this observation as a guaranteed signal. Check the venue, data classification, session boundaries and costs. A candle or aggregated order book does not reveal the identity or total holdings of traders.

Practice

Label ten events as an execution or a resting order. Use recorded or paper data. Log the observation before revealing the outcome.

Resources and further reading

These sources explain definitions and underlying mechanics. Worked examples are original illustrations; a source does not establish the profitability of a custom pattern.

Original video / publisher resource ↗

Public creator-hosted education. Embedding does not mean open-source licensing or endorsement.

Sierra Chart — Numbers Bars documentation ↗

Primary reference for footprint display and bid/ask volume conventions. Platform-specific settings must be checked.

Updated: 14/10/2026