The Information Commissioner’s Office reported on the UK online advertising sector, finding common industry practices unlawful under a strict interpretation of the GDPR and UK privacy law

The ICO focused on problems around transparency, consent and data sharing in the Real-Time-Bidding ecosystem, which comprises 16% of UK online ad spend, but most of publisher online ad revenue. The ICO is giving the industry six months to shape up, with the next steps still unclear

The Competition and Markets Authority has had under consideration an investigation into the entire online advertising sector, but is hampered by Brexit-related considerations

UK online advertising spend continued its double-digit growth in 2018, up 11% to reach nearly £13bn in annual spend or 58% of the total advertising market, but a no-deal consumer downturn could nearly stop growth this year

Google, Facebook, Amazon, professional services firms and the largest marketing cloud companies are the biggest winners, while content media, media agencies and independent advertising technology firms languish 

Self-regulation has improved as pressure mounts on advertising technology firms, but interventions by both privacy and competition authorities are now inevitable

Our central case forecast with orderly EU withdrawal predicts 2.7% growth for total UK advertising spend, down from 4.7% in 2018. We have a no-deal Brexit scenario that predicts a smaller advertising recession than in 2009, with total ad spend declining 3% and display down 5.3% in 2019

The total advertising figures partly mask the pressure on UK consumers, through an expansion of the measured advertising spend universe. This is due to significant self-serve online advertising growth by SMEs, and non-advertising marketing budgets moving to online advertising platforms

In a downturn, we’d expect advertisers to become more tactical, which would disproportionally affect display media including TV, which is further affected by declining commercial impacts among younger adults. Search and social advertising would see only small growth through the first year of a recession