EFx

EFX is an acronym used in multiple, unrelated contexts depending on the field. In finance, EFX is the ticker symbol for Equifax Inc., a consumer credit reporting agency and data analytics company listed on the New York Stock Exchange. In that usage, EFX appears in financial news and trading platforms to denote shares of Equifax.

In entertainment and media, EFX is commonly used as a shorthand for effects, particularly special effects or audio effects. Production notes, credits, and equipment labels may feature EFX to indicate processing modules, effects pedals, or visual effects work. The term is widely encountered in film, television, music production, and live performance.

Beyond these, EFX appears as a designation in various product names, company brands, or project titles; there is no single authoritative meaning. The interpretation of EFX depends on field and context, and it may be stylized in all caps in some uses.