(1) A futures butterfly spread is a spread trade in which multiple futures months are traded simultaneously at a differential. The trade basically consists of two futures spread transactions with either three or four different futures months at one differential.
(2) An options butterfly spread is a combination of a bear and bull spread trade in which multiple options months and strike prices are traded simultaneously at a differential. The trade basically consists of two options spread transactions with either three or four different options months and strikes at one differential