We compare the festive strategies and trading performances of the UK’s leading grocers and look ahead to factors influencing trading in 2020. For each major retailer that has reported (Aldi, Lidl, Morrisons, M&S, Morrisons, Sainsbury’s, Tesco and Waitrose & Partners) we provide details of festive performance and analyse the factors that shaped their results. Trading data and results analysis from other retailers is also included.