Acuity Derivatives is a privately owned New York based boutique consulting firm focused on the financial markets; and specifically on developing and implementing technology strategies to support institutions and businesses working with derivatives and other financial instruments on all asset classes. acuity [əˈkjuːɪtɪ] n 1. keenness or acuteness, especially of vision or thought derivative [diˈrivətiv] n 1. a contract whose value derives from and is dependent on the value of an underlying asset