Then, last March, the NYSE Group was formed as a publicly traded company.

然后, 去年三月, NYSE小组成立的一个公共交易公司.

NYSE stipulates that companies must disclose these relationships, when they exist.

纽约证券交易所规定当存在这些关系时,公司必须披露这些关系.

For example, the NYSE has about 3,000 companies listed.

比如, 那斯达克一共由3000多家公司上市.