IG Group Holdings plc operates as a global financial services company, providing online trading and investment services. It offers a range of products including contracts for difference (CFDs), spread betting, and options across various asset classes such as forex, commodities, and indices. The company serves retail and institutional clients through multiple brands, including IG Prime and Nadex, and operates in key markets across Europe, North America, Africa, Asia-Pacific, and the Middle East. IG Group generates revenue primarily through trading commissions and spreads on transactions executed by its customers.