This excerpt taken from the NDAQ 8-K filed Feb 20, 2008.
Acquisition of the Boston Stock Exchange
On October 1, 2007, we entered into a definitive agreement to acquire BSX for $61.0 million in cash. The BSX acquisition will provide us with an additional license for trading both equities and options and a clearing license. The acquisition of BSX is expected to close in the first half of 2008. After the close of the BSX acquisition, BSXs current operations will be discontinued and will not be integrated into our current operations. As a result of this, no financial impact from the BSX acquisition is reflected in the pro forma financial data contained within this offering memorandum.