Marks & Spencer's performance will be in focus today with a trading update that should shed light on whether fierce competition has dealt a further blow to its turnaround plans.
The retail bellwether has been struggling to revive the fortunes of its beleaguered fashion division with its autumn/winter collection cited as a key opportunity to make its mark.
But investors have been anxious that aggressive discounting used to lure customers into shops could have hit profit margins.
There have been mixed signals from rivals in the sector so far. The likes of House of Fraser, Next and John Lewis have emerged as Christmas high street winners, with Next now on course to see its profits overtake those of M&S for the first time.
But Debenhams and Mothercare suffered very different fortunes, with both having to issue profit warnings that sent shares tumbling.