Aaron v. SEC

In Aaron v. SEC, 446 U.S. 680, 100 S.Ct. 1945, 64 L.Ed.2d 611 (1980), the Supreme Court stated that the district court shall grant such an injunction "upon a proper showing." (Id. at 689, 100 S.Ct. 1945.) The requisite elements of "a proper showing" include, "at a minimum, proof that a person is engaged in or is about to engage in a substantive violation of either one of the Acts or of the regulations promulgated thereunder." (Id. at 700-01, 100 S.Ct. 1945.)