Mich. Comp. Laws § 750.127
Bucket shops defined-A bucket shop, within the meaning of this chapter, is defined to be an office, store or other place wherein the proprietor or keeper thereof, or other person or agent, either in his or its own behalf, or as the agent or correspondent of any other person, corporation, association or copartnership within or without the state conducts the business of making or offering to make contracts, agreements, trades or transactions respecting the purchase or sale, or purchase and sale of any stocks, grains, provisions or other commodity or personal property wherein both parties thereto, or said proprietor or keeper contemplated or intended that the contracts, agreements, trades or transactions shall be, or may be closed, adjusted or settled according to or upon the basis of the market quotations or price made on any board of trade or exchange, upon which the commodities or securities referred to in such contracts, agreements, trades or transactions are dealt in, and without a bona fide transaction on such board of trade or exchange, or wherein both parties or such keeper or proprietor shall contemplate or intend that such contracts, agreements, trades or transactions shall be or may be deemed closed or terminated, when the market quotations of prices made on such board of trade or exchange for the articles or securities named in such contracts, agreements, trades or transactions shall reach a certain figure, and also any office, store or other place where the keeper, person or agent or proprietor thereof, either in his or its own behalf, or as an agent as aforesaid therein, makes or offers to make, with others, contracts, trades or transactions for the purchase or sale of any such commodity, wherein the parties thereto do not contemplate the actual or bona fide receipt or delivery of such property, but do contemplate a settlement thereof based upon differences in the price at which said property is or is claimed to be bought and sold. The said crime shall be complete against any proprietor, person, agent or keeper thus offering to make any such contracts, trades or transactions, whether such offer is accepted or not.
MCL 750.127