The digital advertising market is experiencing a distinct cooling trend. While baseline costs remain elevated, year-over-year CPC inflation is steadily decelerating across all channels. This stabilization is most evident in Shopping campaigns, where aggressive cost growth dropped from a peak of 16 percent in late 2025 to just 7 percent by mid-2026, signaling reduced auction volatility.
The 365-day trajectory reveals a mature, highly saturated e-commerce landscape where Search commands the highest premium (~€0.42). Initial assumptions of a purely seasonal market are challenged by the data. While Performance Max (PMax) and Standard Shopping exhibit expected Q4 holiday peaks (November 2025), Shopping’s aggressive, counter-seasonal CPC climb from February to May 2026 indicates intensifying competition outside traditional promotional windows.
The YoY bar charts complicate the line chart’s narrative. Although Shopping’s absolute CPC rises steadily in early 2026, its YoY growth is actually decelerating (dropping from ~16% in Q3 2025 to ~7% in Q2 2026). This indicates that the most violent CPC inflation occurred in the prior year; the current rise is a stabilization at a new, higher baseline. Conversely, Search shows near-zero YoY growth by 2026, confirming its stagnation despite maintaining the highest absolute costs.
Several external forces are shaping these metrics:
The divergence between channels highlights a tug-of-war between platform automation and advertiser control: