Industry WIKI

A bucket shop is a business that allows gambling based on the prices of stocks or commodities. A 1906 U.S. Supreme Court ruling defined a bucket shop as "an establishment, nominally for the transaction of a stock exchange business, or business of similar character, but really for the registration of bets, or wagers, usually for small amounts, on the rise or fall of the prices of stocks,

A clearing house, often written as clearinghouse, is a financial institution formed to facilitate the exchange (i.e., clearance) of payments, securities, or derivatives transactions. The clearing house stands between two clearing firms (also known as member firms or participants).