This excerpt taken from the NDAQ 8-K filed Feb 20, 2008.
Note FInvestment in affiliate
The Exchange has a minority equity interest in The Options Clearing Corporation (OCC) carried at cost totaling $333,000. In the event the Exchange should cease to be qualified to participate in OCC, OCC has the right to purchase all the shares owned by the Exchange. The shareholders agreement provides that the purchase price will be the lesser of the Exchanges cost or the aggregate book value of the shares.
It is intended that the income of OCC will either be distributed to the member exchanges or retained within OCC. This determination will be made annually by the OCC Board of Directors. As the investment in OCC is not marketable and because there is little likelihood of dividends being distributed to the shareholders, the Exchange will realize its share of OCCs equity upon ultimate liquidation of OCC, an event not in the foreseeable future. Accordingly, the investment in OCC is carried at the Exchanges cost. There were no distributions in 2006 and 2005.