What does CFX stand for in CFD?

Could you kindly enlighten me on the abbreviation CFX in the context of CFD? I'm quite perplexed as to its specific meaning and significance in this field. Would it refer to a specific type of currency, a technological component, or perhaps a regulatory framework? Could you elaborate on its role and applications within CFD, and how it might impact financial transactions or cryptocurrency investments? Your insights would be greatly appreciated.