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Delta & CVD

Bid/Ask Volume

Aggressive ask vs bid volume as two curves

Bid/Ask Volume draws the absolute aggressive volume of each side separately (not just their difference like delta). When the ask curve crosses above the bid, buyers are aggressively taking control — and vice versa. You can tell "small delta on big volume" (a fight over a level, possible absorption) from "small delta on small volume" (a quiet market).

Data requirementBid/ask tick data
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What it does

  • Aggressive ask volume curve (buyers)
  • Aggressive bid volume curve (sellers)
  • Fully configurable curve style (colour, width, line)
  • Crossover as a shift-of-control signal
  • Optionally regular session only (RTH)
  • Live updates

How to read it

01

Ask > Bid and rising = buyers aggressively taking control; the reverse for sellers.

02

Both curves high and close together = high volume with no clear winner (a fight over a level, possible absorption).

03

A crossover at a key level = a shift-of-pressure signal.

Specs

Type
Lower panel
Data
Bid/ask tick
Market
Futures, Crypto
Update
Realtime
From the blog

Learn it in depth

Order Flow & Delta Bid/Ask Volume: Who Really Moves the Market (and Why You Read It Diagonally) The foundation of all order flow: aggressors vs passive players, why price only rises when the offer is consumed, and the most common beginner mistake — reading numbers side by side instead of diagonally. Read the article
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