Delta is the difference between two classified volume totals. Cumulative Delta adds Delta readings over time, providing another view of executed buying and selling activity.
Key concepts
- Bid and ask classification
- A common method classifies trades by their location relative to bid and ask quotes. The classification describes trade location; it does not reveal every participant's intent.
- Cumulative Delta
- A display that accumulates Delta for each bar or session, depending on its configuration.
Learn it step by step
- 1Check the selected Delta type and whether it is calculated by bid/ask or another method.
- 2Keep the instrument, session, and data source consistent before comparing charts.
- 3Record the reading alongside price, volume, and session context.
Historical bid/ask data can differ among data providers, which can lead to different Delta values. A single reading is not a definitive signal.