Volume · TickAtlas Learn

Money Flow Index (MFI)

Q: What is the difference between MFI and RSI?

MFI incorporates volume into its calculation, making it a volume-weighted RSI. MFI signals are generally considered more reliable because they account for the conviction behind price moves.

MFI is a volume-weighted version of RSI. It measures buying and selling pressure using both price and volume, making it more comprehensive than RSI alone.

10 min readUpdated 2026-03-21Volume

MFI · quick spec

GET /v1/indicator ?symbol=EURUSD&indicator=MFI_14&timeframe=H1

Family: Volume
Series: Periods 14
Best timeframes: H1 · H4 · D1
Last updated: 2026-03-21

TL;DR

MFI is a volume indicator used in technical analysis
MFI > 80 is overbought; < 20 is oversold. Like RSI but volume-weighted, making divergence signals stronger.
Best timeframes: H1, H4, D1
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Understand

What is Money Flow Index?

MFI is a volume-weighted version of RSI. It measures buying and selling pressure using both price and volume, making it more comprehensive than RSI alone.

Calculate

How MFI is calculated

formula

Typical Price = (High + Low + Close) / 3
Raw Money Flow = TP × Volume
Money Flow Ratio = Positive MF / Negative MF
MFI = 100 - (100 / (1 + Money Flow Ratio))

Default period: 14

Interpret

How to interpret MFI

MFI > 80 is overbought; < 20 is oversold. Like RSI but volume-weighted, making divergence signals stronger.

Apply

Trading strategies using MFI

Strategy 1: MFI Overbought/Oversold

Trade reversals when MFI reaches extremes with volume confirmation.

Entry rules

Buy when MFI crosses above 20. Sell when MFI crosses below 80.

Exit rules

Exit at opposite extreme or when volume dries up.

Combine

Combining MFI with other indicators

MFI works best when combined with complementary indicators:

MFI + RSI: Combine for stronger confluence signals
MFI + OBV: Combine for stronger confluence signals
MFI + A/D Line: Combine for stronger confluence signals

Timeframes

MFI across different timeframes

MFI works across all 7 timeframes but performs best on H1, H4, D1 for most trading styles.

H1H4D1

Learn about all 7 timeframes

Query

Accessing MFI via the TickAtlas API

GET https://tickatlas.com/v1/indicator

Python example

python

import requests

url = "https://tickatlas.com/v1/indicator"
headers = {"X-API-Key": "YOUR_API_KEY"}
params = {
  "symbol": "EURUSD",
  "indicator": "MFI_14",
  "timeframe": "H1"
}

response = requests.get(url, headers=headers, params=params)
data = response.json()
print(data)

Sample response

200 OK

{
  "success": true,
  "data": {
    "symbol": "EURUSD",
    "indicator": "MFI_14",
    "timeframe": "H1",
    "value": 58.43,
    "updated_at": 1711548000,
    "server_time": "2024-03-27T14:00:00+00:00",
    "bid": 1.0856,
    "ask": 1.0857
  }
}

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Avoid

Common mistakes to avoid

Treating MFI identically to RSI — the volume component makes it behave differently
Ignoring MFI when volume is abnormally low

FAQ

Frequently asked questions

What is the difference between MFI and RSI?