Twitter plans to go public and trade shares under the ticket symbol "TWTR". More details about the company emerge as it has made public its papers for an S-1 Initial Public Offering.

Twitter’s a tech company, right? And tech companies list on the Nasdaq, right? So what the heck is Twitter doing listing on the NYSE?

The merger of BATS and Direct Edge will create the second-largest stock exchange in the U.S., passing the Nasdaq.

The contract to run the London Interbank Offered Rate or LIBOR — one of the key benchmarks in the global financial system — has been awarded to NYSE Euronext.

Oracle is leaving the NASDAQ and moving over to the New York Stock Exchange.

It's another sign the global business world has become less centralized and more diffuse. The company poised to buy the New York Stock Exchange for more than $8 billion is based not in a world financial center, but in Atlanta.

There’s news that the New York Stock Exchange might be acquired for $8 billion by the Atlanta-based upstart IntercontinentalExchange.

Trading in U.S. stocks resumed today after two days off. A storm has not shut down trading for this long since 1888.

Wall Street has resumed trading today for the first time since last Friday. JFK and Newark airports are reopening as well on a limited basis.