Barclays plc (/ˈbɑːrkliz, -leɪz/) is a British multinational universal bank, headquartered in London, England. Barclays operates as two divisions, Barclays UK and Barclays International, supported by a service company, Barclays Execution Services. Barclays has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. It has a secondary listing on the New York Stock Exchange. It is considered a systemically important bank by the Financial Stability Board.