Nadex

Amercanex is a US-based cannabis commodity exchange headquartered in Denver, Colorado, designed to facilitate transparent wholesale trading of legal cannabis products between licensed growers, processors, and dispensaries. As one of the world's first regulated cannabis commodity exchanges, Amercanex aims to standardise pricing and improve supply-chain efficiency across state-legal cannabis markets.

The U.S. Futures Exchange (USFE) was a Chicago-based electronic futures exchange founded in 2004 by a consortium including Goldman Sachs, Man Financial, and others, with the goal of introducing competition into the US Treasury and energy futures markets dominated by the CME and CBOT. Despite significant backing and low-cost trading incentives, USFE failed to attract sufficient liquidity from established market participants and closed operations in December 2007 after roughly three years of trading.

The Memphis Cotton Exchange, founded in 1873 in Memphis, Tennessee, was a historic spot market for cotton pricing, grading, and trading in the American South. As one of the world's largest cotton-handling cities, Memphis became a natural hub for cotton commerce. The Exchange provided standardised grading and price reporting services for the US cotton industry for over a century, though trading activity and formal exchange functions have significantly diminished as futures markets and ICE took over price-discovery roles.

The Brazilian Mercantile and Futures Exchange (BM&F) was one of the world's largest derivatives exchanges, founded in São Paulo in 1983. In 2008, BM&F merged with the São Paulo Stock Exchange (Bovespa) to form BM&FBOVESPA. In 2017, it merged again with CETIP to create B3 (Brasil, Bolsa, Balcão) — now Latin America's largest financial exchange group by market capitalisation. B3 continues to operate commodity derivatives including sugar, arabica coffee, live cattle, ethanol, and gold contracts.