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NYSE Arca

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NYSE Arca, previously known as ArcaEx, an abbreviation of Archipelago Exchange is an entirely online securities exchange on which both stocks and options are traded. It is owned by the NYSE Group, which merged with Archipelago Holdings in a reverse merger on 2006-02-27.

Market Share

As of 1 March 2007, NYSE Arca is the second largest Electronic Communication Network in terms of shares traded. Approximately one out of every six shares traded on the American financial markets is traded on the system. For New York Stock Exchange-listed securities, it accounts for just over 10% of the shares traded. For NASDAQ-listed securities, NYSE Arca accounts for approximately 20% of the trading volume. For exchange-traded funds, NYSE Arca accounts for 30-40% of the traded volume.