Qatar’s move to become the biggest shareholder in Barclays Bank continues its love affair with the City of London, although the London/Doha axis may not be an all-consuming passion. The London Stock Exchange’s failure to become Doha Securities Market’s key partner raised City eyebrows after the DSM decided that NYSE Euronext should take up one quarter of its equity, in a $250m deal, rather than the LSE, which has been 15%-owned by Qatar Investment Authority (QIA), run by Prime Minister Sheikh Hamad Bin Jassim Bin Jabr Al-Thani (HBJ), since last September.