UK advertising investment is expected to reach £51.3 billion in 2026, up 9.9% year-on-year, according to the latest Advertising Association/WARC Expenditure Report. The forecast represents an upward revision of 1.8 percentage points from July, following strong second-quarter growth. The report projects fourth-quarter investment of £14 billion, an 8.2% increase over the same period in 2025. That would add £1.06 billion to advertising expenditure during the...