But a few stores' shares are winning Check out this story on WFAA.com: http://usat.ly/1m4JRch An Amazon logo hangs on a wall outside an Amazon.co.uk fulfillment centre in Hemel Hempstead, north of London, on November 25, 2015. Shops could be seeing the effect of consumers postponing purchases until "Black Friday" on November 27, a day of sales in the United States that has become increasingly popular in Britain.