A securities exchange in the U.S. on which stocks and options are traded. The NYSE Arca, previously known as the ArcaEx or Archipelago Exchange, is owned by NYSE Euronext, which merged with Archipelago Holdings in a reverse merger in 2006.



As of 2009, The NYSE Arca is the world's second largest electronic communication network (ECN) in terms of shares traded. It accounts for roughly 10% of NYSE-listed securities traded and 20% of Nasdaq-listed securities traded. Much like other ECNs, the NYSE Arca implements a liquidity fee/rebate program to improve overall market liquidity.