exv21

Exhibit 21


		State/Jurisdiction of
Name		Incorporation

NYSE Group, Inc.⁽¹⁾		Delaware
New York Stock Exchange LLC⁽²⁾		New York
Archipelago Holdings, Inc.⁽³⁾		Delaware
NYSE Amex LLC⁽⁴⁾		Delaware
NYSE Euronext (International) B.V.⁽¹⁾		Netherlands
NYSE Euronext (Holding) N.V.⁽⁵⁾		Netherlands
Euronext N.V.⁽⁶⁾		Netherlands
Euronext Amsterdam N.V.⁽⁷⁾		Netherlands
Euronext France (Holding) S.A.S.⁽⁷⁾		France
Euronext IFSC BVBA⁽⁷⁾		Belgium
Euronext Paris S.A.⁽⁸⁾		France
Euronext Holdings UK Limited⁽⁹⁾		United Kingdom
NYSE Technologies, Inc.⁽¹⁰⁾		Delaware
Euronext Brussels S.A./N.V.⁽¹¹⁾		Belgium
Euronext Lisbon — Sociedad Gestora de Mercados Regulamentados, S.A.⁽¹²⁾		Portugal
Wall and Broad Insurance Company⁽¹⁾		New York
NYSE Liffe Holdings, LLC⁽¹³⁾		Delaware
NYSE IP LLC⁽¹⁴⁾		Delaware
NYSE Liffe US LLC⁽¹⁵⁾		Delaware


⁽¹⁾		Wholly owned subsidiary of NYSE Euronext.

⁽²⁾		Wholly owned subsidiary of NYSE Group, Inc. Operates the New York Stock Exchange; 6 wholly-owned subsidiaries operating in the United States have been omitted.

⁽³⁾		Wholly owned subisidiary of NYSE Group, Inc. Operates NYSE Arca; 7 wholly-owned subisidiaries operating in the United States have been omitted.

⁽⁴⁾		Wholly owned subsidiary of NYSE Group, Inc. Operates NYSE Amex; 6 wholly-owned subsidiaries operating in the United States have been omitted.

⁽⁵⁾		Wholly owned subsidiary of NYSE Euronext (International) B.V.

⁽⁶⁾		99.35% owned subsidiary of NYSE Euronext (Holding) N.V.

⁽⁷⁾		Wholly owned subsidiary of Euronext N.V.

⁽⁸⁾		Wholly owned subsidiary of Euronext France (Holding) S.A.S. Operates Euronext Paris; 2 wholly-owned subsidiaries operating in foreign countries have been omitted.

⁽⁹⁾		Wholly owned subsidiary of Euronext IFSC BVBA Operates Liffe (Holdings); 22 wholly-owned subsidiaries operating outside the United States have been omitted; 2 wholly-owned subsidiaries operating in the United States have been omitted.

⁽¹⁰⁾		Wholly owned subsidiary of NYSE Group, Inc. Operates NYSE Technologies; 2 wholly-owned subsidiaries operating in the United States have been omitted; 9 wholly-owned subsidiaries operating in foreign countries have been omitted.

⁽¹¹⁾		80% owned subsidiary of Euronext N.V.; 19% owned subsidiary of Euronext Paris S.A.; 1% owned subsidiary of Euronext Lisbon-Sociedade Gestora de Regulamentados, S.A.

⁽¹²⁾		Wholly owned subsidiary of Euronext N.V. Operates Euronext Lisbon; 1 wholly-owned subsidiary operating in a foreign country was omitted.

⁽¹³⁾		58% owned by NYSE Euronext.

⁽¹⁴⁾		Wholly owned subsidiary of NYSE Euronext. Owns certain of our intellectual property; 5 wholly-owned subsidiaries operating in foreign countries have been omitted.

⁽¹⁵⁾		Wholly owned subsidiary of NYSE Liffe Holdings, LLC.


New York Block Exchange LLC¹⁶		Delaware
SmartPool Holding Limited¹⁷		United Kingdom
SmartPool Trading Limited¹⁸		United Kingdom
Euronext Real Estate S.A./N.V. ¹⁹		Belgium
NYSE Technologies Holding S.A.S.²⁰		France
Bluenext S.A.²¹		France
Secfinex Limited²²		United Kingdom
NYSE Board Member LLC²³		Delaware
NYSE Qatar LLC⁷		Qatar
Metnext²⁴		France
Qatar Exchange²⁵		Qatar


⁽¹⁶⁾		50% owned subsidiary of New York Stock Exchange LLC.

⁽¹⁷⁾		73.3% owned subsidiary of Euronext Holdings UK Limited.

⁽¹⁸⁾		Wholly owned subsidiary of SmartPool Limited.

⁽¹⁹⁾		99.84% owned subsidiary of Euronext Brussels N.V./S.A.; 0.16% owned by Euronext Paris S.A.

⁽²⁰⁾		Wholly owned subsidiary of Euronext France (Holding) S.A.S.; operates NYSE Technologies in Europe; 3wholly-owned subsidiaries operating in foreign countries have been omitted.

⁽²¹⁾		60% owned by Euronext Paris S.A.

⁽²²⁾		56.51% owned by LIFFE (Holdings) plc.

⁽²³⁾		Wholly owned subsidiary of NYSE Group, Inc.

⁽²⁴⁾		24% owned by Euronext N.V.

⁽²⁵⁾		20% owned by Euronext N.V.