Philadelphia Stock Exchange that the tax was illegal, and the PHLX moved its trading floor back to its headquarters in the city. In 1981, the exchange moved to 19th and Market, where it stayed until 2017 when it moved to its current location in the newly built FMC Tower. The exchange merged with the Baltimore Stock Exchange in 1949. The exchange was then named the Philadelphia-Baltimore Stock Exchange. The Baltimore Stock Exchange then migrated out of its Baltimore Stock Exchange Building, later renamed the Totman Building, to a new home base in Philadelphia. The exchange merged with the Washington Stock Exchange in 1954.
Frankfurt Stock Exchange in place for the trading venues Xetra and Börse Frankfurt. These include volatility interruption, market order interruption, and liquidity interruption measures. The origins of the Frankfurt Stock Exchange go back to medieval trade fairs in the 11th century. By the 16th century Frankfurt developed into a wealthy and busy city with an economy based on trade and financial services. In 1585 a bourse was established to set up fixed currency exchange rates, which is considered to mark the 'birth' of the stock exchange. During the following centuries Frankfurt developed into one of the world's first stock exchanges - next to