Citadel Securities LLC is an American market making firm headquartered in Miami. It is one of the largest market makers in the world, and is active in more than 50 countries. It is the largest designated market maker on the New York Stock Exchange.

The Commodity Futures Trading Commission (CFTC) is an independent agency of the US government created in 1974 that regulates the U.S. derivatives markets, which includes futures, swaps, and certain kinds of options.