NYSE Regulation, Inc., is an independent not-for-profit corporation dedicated to strengthening market integrity and investor protection. A subsidiary of NYSE Euronext, NYSE Regulation's board of directors is comprised of a majority of directors unaffiliated with any other NYSE board. As a result, NYSE Regulation is independent in its decision-making. NYSE Regulation oversees The New York Stock Exchange. NYSE MKT, NYSE Amex Options, NYSE Arca and NYSE Arca Options.
NYSE Euronext operates Euronext Securities Markets in Amsterdam, Brussels, Lisbon, London and Paris via its five Euronext Market Undertakings (market operators). These Euronext Securities Markets are Regulated Markets within the meaning of the Markets in Financial Instruments Directive (MiFID). As such, they are governed by a common set of rules applicable to all the Euronext Securities Markets—the so-called Harmonised Rules (Rule Book – Book I, which applies also to the Euronext Derivatives Markets)—and each by a set of local rules applicable to that particular market—the so-called Non-Harmonised Rules (Rule Book – Book II).