Board of Trade of Chicago v. United States

Background

The United States sued the Chicago Board of Trade and its officers to stop enforcement of the Board’s 1906 "Call" rule. The rule required members to fix bids for grain "to arrive" at the day’s closing Call price until the next session. The Government argued the rule violated the Anti-Trust Law, and a lower court struck some defenses, excluded evidence about the rule’s history and purpose, and entered an injunction stopping enforcement.

Reasoning

The Court said you cannot judge every business rule simply because it restrains competition in some sense; the key is whether the rule regulates and promotes competition or suppresses and destroys it. The Court found the District Court erred by excluding evidence about the rule’s history and purpose. Looking at the rule’s nature, limited scope, and effects, the Court concluded it only restricted price-making during a short part of the day and applied to a small part of trade in grain "to arrive," while creating a public market and wider participation in bidding.

Real world impact

The Court held the Call rule was a reasonable business regulation and not an illegal restraint under the Anti-Trust Law, reversed the injunction, and directed the case’s dismissal. The ruling lets the Board continue the Call practice, preserves the public bidding system for country dealers and farmers, and recognizes that some trade organizations may lawfully limit business hours or procedures to organize markets.