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MFI in Crypto: Why the Value Changes Before Candle Close

Money Flow Index weights typical price by volume. During a live bar, both the price and the accumulated volume are still changing.

By ChartsPod Editorial Team · Reviewed by ChartsPod Research
Published · Updated · 5 min read

Short answer

MFI uses typical price × volume (raw money flow), classifies each bar's flow as positive or negative by whether typical price rose or fell versus the previous bar, and computes 100 − 100 ÷ (1 + positive flow ÷ negative flow) over N bars. In a live bar, volume keeps accumulating and the typical price changes; if the typical price crosses the previous bar's, the whole bar's flow switches from positive to negative. MFI can therefore jump intrabar. Use closed-bar values, and compare MFI only on the venue whose volume you trade.

Which part of MFI uses the live bar

ComponentUses current bar?Effect intrabar
Typical price (H+L+C)/3YesMoves with price
VolumeYes, accumulatingGrows through bar
Flow sign (vs previous TP)YesCan flip whole bar
MFIYesCan jump

The sign flip is MFI's distinctive intrabar risk: a bar's entire money flow moves from the positive to the negative side when typical price dips below the prior bar's, then back if it recovers.

Put MFI in Crypto next to price, flow and positioning in one workspace.

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How much it moves inside one bar

MFI during one bar (illustrative)MFI during one bar (illustrative): OPEN: MFI 62; DIP: TP below prior: 51; RECOVER: 68; CLOSE: 66.OPENMFI 62DIPTP below prior: 51RECOVER68CLOSE66
Only MFI's closing value is kept in history. Original ChartsPod editorial graphic.
Illustrative intrabar range of MFI vs its closed valueIllustrative intrabar range of MFI vs its closed value: MFI intrabar range 17 ; MFI bar-to-bar change 6 .ILLUSTRATIVE INTRABAR RANGE OF MFI VS ITS CLOSED VALUEMFI intrabar range17MFI bar-to-bar change6
How far MFI travels inside a bar versus between bars. Original ChartsPod editorial graphic.

Rules

MFI signal hygieneMFI signal hygiene: Signals on closed bars; Bar-close alerts; Backtest uses the same rule; Live value labelled provisional; Settings identical across chart and alerts.MFI SIGNAL HYGIENESignals on closed barsBar-close alertsBacktest uses the same ruleLive value labelled provisionalSettings identical across chart and alerts
Closed values are what history shows. Original ChartsPod editorial graphic.

Volume-based indicators also differ between spot and perp: see Indicators on Spot vs Perpetual Charts: Same Settings, Different Data.

Review MFI in Crypto with bar replay before using it live.

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Questions readers ask

Why does MFI jump intrabar?

The bar's flow sign can flip as typical price crosses the prior bar's.

Does volume matter?

Yes; MFI weights by volume, which accumulates during the bar.

Which venue's volume?

The one you trade.

Sources and methodology

Indicator formulas are standard definitions; live-versus-closed behaviour follows TradingView's repainting documentation. Values in examples are illustrative.

  1. TradingView Pine Script: Repainting — live vs historical calculation.
  2. ChartsPod indicator reference — indicator calculations.
  3. TradingView: VWAP — calculation and anchor period.

This article explains research tools and workflows. It is not financial advice, does not recommend buying or selling any asset and does not predict prices. Crypto derivatives carry a risk of rapid and total loss of margin.

CHARTSPOD EDITORIAL EDITION · RESEARCH AND EDUCATION ONLY · NOT FINANCIAL ADVICE.