Tesco is being chased by Safeway, which has moved up from number five.
The success of Safeway this week is due in part to the many off-fixture displays in stores, most particularly targeted at the confectionery section, along with a variety of boxed biscuits highlighting festive offers. The increase in Safeway has pushed both Asda and Sainsbury down by one place.
Alcoholic drinks is the only category to remain stable in the chart this week, holding its place at number one.
Confectionery moves up one place to take second position while soft drinks comes in as a new entry at number three with a large number of multibuy promotions.
The top four in the brand chart are unchanged this week in terms of positioning.
However Cadbury's at number one has increased its lead by almost six percentage points and now stands more than 13 percentage points clear of the field.
McVitie's at number five focuses upon price promotions as does Nestlé¬ up from number 10 to number seven.
There are four new entries in the chart, including Mars, KP, Robinsons and Comfort.
As expected Mars continues to feature more lines aimed at the Christmas market while KP makes good use of buy one get one free offers.
In the own label chart frozen continues at number one while cakes and biscuits moves up one place to number two.
Alcoholic drinks comes in as a new entry as does snacks, which features price promotions.