$ACX It seems like you're asking about$ACX which could refer to several different entities, depending on the context.
Technologies: This could refer to a company, though I am not aware of any widely known company with the exact ticker ACX in major exchanges.
Acorn Energy, Inc. : Previously, Acorn Energy, Inc. traded under the ticker ACX, but it since changed names and business focus.
Could you clarify if you mean a specific stock, cryptocurrency, or another asset with the ticker $ACX? This would help narrow down the search for more accurate information