The Administrator conducted a consultation with index users and market participants concerning proposed methodology changes to the CME CF Cryptocurrency Reference Rates. between 1000 LDN May 4th and 1600 LDN May 18th.
There were no responses received to this consultation and nor were there any queries regarding any aspects of the proposed change.
The Administrator can now confirm it will implement the changes proposed
Implementation Date
The Administrator has been conducting extensive testing of the changes to Its systems and processes that will be required to support these changes. To ensure that testing is comprehensive, and the implementation of the methodology changes does not cause any market disruption the Administrator shall implement the methodology changes on July 30th 2021 at 1630 London time meaning that the calculation of the CME CF Cryptocurrency Reference Rates for July 31st 2021 onwards will be calculated utilising the revised methodology.
The CME CF Oversight Committee has provided oversight of this benchmark consultation process.
Any queries regarding these changes can be sent to [email protected]
The information contained within is for educational and informational purposes ONLY. It is not intended nor should it be considered an invitation or inducement to buy or sell any of the underlying instruments cited including but not limited to cryptoassets, financial instruments or any instruments that reference any index provided by CF Benchmarks Ltd. This communication is not intended to persuade or incite you to buy or sell security or securities noted within. Any commentary provided is the opinion of the author and should not be considered a personalised recommendation. Please contact your financial adviser or professional before making an investment decision.
Note: Some of the underlying instruments cited within this material may be restricted to certain customer categories in certain jurisdictions.
The CME CF Crypto Market Index fell 9.32% in October, the smallest decline in the family, as Bitcoin supplied 57% of it while falling less than the index. Altcoins led the selling before the Binance theft and Bitcoin after it, so the CF Services Category Index fell furthest (-19.71%).

Mark Pilipczuk
Digital assets fell in October as the Fed held rates with two dissents in favor of a hike and the $6.3 billion Binance theft pushed Broad Cap below its 100-day average. All eight CF indices declined, DeFi fell 23.5%, and funds recorded their first outflow since June.

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The Administrator has confirmed changes to the Token Market Price Family for the period 27 October 2026 to 03 November 2026.

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