As defined by the U.S. Supreme Court, a bucket shop is "[a]n 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, grain, oil, etc., there being no transfer or delivery of the stock or commodities nominally dealt in."[1] People often mistakenly interchange the words bucket shop and boiler room, but there is actually a significant difference. A boiler room has been defined as a place where high-pressure salespeople use banks of telephones to call lists of potential investors (known as "sucker lists") in order to peddle speculative, even fraudulent, securities. However, with a bucket shop, it could be better thought of as a place where people go to make “side bets” – similar to a bookie.
"Bucket shop" is a defined term under the criminal law of many states in the United States that make it a crime to operate a bucket shop.[2] Typically the criminal law definition refers to an operation in which the customer is sold what is supposed to be a derivative interest in a security or commodity future, but there is no transaction made on any exchange. The transaction goes 'in the bucket' and is never executed. Without an actual underlying transaction, the customer is betting against the bucket shop operator, not participating in the market. Alternatively, the bucket shop operator "literally 'plays the bank,' as in a gambling house, against the customer." [3]