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Yahoo Finance Currency Rates and Their Data Provider

Article Quant Q&A · Author: Thomas
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Summary

The document answers a narrow data-provenance question about currency exchange rates shown on Yahoo Finance. It identifies ICE data services as the source, citing Yahoo Finance’s data-provider disclaimer. This gives researchers a starting point for understanding where displayed foreign exchange quotes originate when considering the USD/IDR example.

The response does not explain how Yahoo Finance calculates, timestamps, aggregates, or updates the rates, and it provides no details about quote conventions, market coverage, or licensing. It therefore addresses the provider attribution rather than the full methodology behind a displayed rate. Anyone using the data for analysis should consult the current provider disclosure and independently assess whether the rates meet their needs for precision, timing, and historical coverage.

Key ideas

  • The response attributes Yahoo Finance currency data to ICE data services.
  • The cited disclosure establishes a data-provider connection, not the rate calculation methodology.
  • The discussion gives no detail about timestamps, quote conventions, market coverage, or updates.
  • Researchers should verify the current disclosure and assess whether the data fits their use case.

Tags

Forex
Full text
# How are currency exchange rates on yahoo finance computed?


# How are currency exchange rates on yahoo finance computed?












I've been looking for the metadata about how the exchange rates on yahoo finance computed, but I cant find anything on the website. Please kindly help me, thank you.

This is the example USDIDR=X:

## Answer by river_rat (score 4)

https://quant.stackexchange.com/a/65954

According to the finance data disclaimer (https://help.yahoo.com/kb/exchanges-data-providers-yahoo-finance-sln2310.html) the source for fx rates is the ICE data service.

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.