This excerpt taken from the NDAQ 8-K filed Feb 20, 2008.
OMX operates in various emerging markets that are subject to greater political, economic, and social uncertainties than developed countries.
The operations of OMX are subject to the risk inherent in international operations, including but not limited to, risks with respect to operating in Central and Eastern Europe, the Middle East and Asia. Some of these economies are perceived to be subject to greater political, economic and social uncertainties than countries with more developed institutional structures. Political, economic or social events or developments in one or more of these countries could adversely affect OMXs operations and its related financial results and, in turn, the operations and financial results of the combined company.