Pizza delivery chain Domino’s (LON:DOM) reported strong trading in its fourth quarter, with the X Factor final marking their biggest sales day of the year.

Group system sales rose 18.2 percent, with strong growth reported in both “established and newer markets”. UK system sales up 9.8 percent, with sales up 25 percent over the average Saturday across the year.

The start of the X Factor Final on 2 December 2017 was the the group’s biggest day of sales for the year, “demonstrating the growing trend for combining ordering in with family entertainment”.

David Wild, Chief Executive Officer, said 2017 was “another year of significant progress and growth for Domino’s.”

“The UK business has demonstrated its resilience in a challenging economic and competitive environment. Our international operations are growing in scale and benefiting from our expertise in supply chain and digital.”

Fourth quarter performance was ahead of the group’s expectations, and as a result it now expects full year underlying profit before tax to be “slightly above the current range of market expectation”.

Shares in Domino’s are currently trading up 3.08 percent at 361.30 (0836GMT).