Philadelphia Stock Exchange
Overview
 
Philadelphia Stock Exchange (PHLX), now known as NASDAQ OMX PHLX, is the oldest stock exchange
Stock exchange
A stock exchange is an entity that provides services for stock brokers and traders to trade stocks, bonds, and other securities. Stock exchanges also provide facilities for issue and redemption of securities and other financial instruments, and capital events including the payment of income and...

 in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, founded in 1790. It is now owned by NASDAQ OMX and located at 1900 Market Street, in Center City Philadelphia.
Over its 200 years the exchange has had various titles and has been located in various buildings around Philadelphia.

Founded in 1790 as the "Board of Brokers," it was located at the Merchants Coffee House, now known as the City Tavern, at the corner of Second and Walnut Streets.

In 1831, Stephen Girard’s Bank had formed the "Philadelphia Merchant’s Exchange Company" to erect a new building to house the Board of Brokers and other groups.
 
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