<P> As of February 2018, the largest overall shareholder is the sovereign wealth fund of Qatar, the Qatar Investment Authority, which holds 21.99% of the company . It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index . </P> <P> In April 2018, Sainsbury's entered talks with Walmart about a proposed merger with Asda, which could form the largest UK supermarket company . </P> <P> Sainsbury's was established as a partnership in 1869, when John James Sainsbury and his wife Mary Ann opened a shop at 173 Drury Lane in Holborn, London . Sainsbury started as a retailer of fresh foods and later expanded into packaged groceries such as tea and sugar . His trading philosophy, as stated on a sign outside his first shop in Islington, was: "Quality perfect, prices lower". </P> <P> Shops started to look similar, so in order that people could recognise them throughout London, a high cast - iron' J. SAINSBURY' sign featured on every shop so their shops could be seen from a distance, and round - the - back deliveries started to add extra convenience and not upset rivals due to Sainsbury's popularity . </P>

Where did the name sainsbury's come from
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