Forecasting is not a static art; it’s a process of refinement. A look back at analyst Brian Wieser's multi-year predictions for the US advertising market provides a clear example of how economic expectations can shift over time.
Take 2024 as a case study. In the spring of that year, the outlook was solid, with Brian Wieser forecasting a respectable 5.6% growth for the US ad industry. But as the year progressed, optimism grew significantly. By December 2024, that projection had been revised upward to roughly 9% growth, a substantial increase that signaled a much stronger market than was apparent just a few months prior.
That bullishness carried over into predictions for the following years. By the end of 2025, Wieser had again revised his forecast for that year, anticipating a remarkable 11% growth rate, a sharp increase from the 6% he had projected just six months earlier. The outlook for 2026 was also robust, with an anticipated 8.9% expansion for the US ad market, buoyed in part by midterm political ad spending.
Taken together, the receipts show a forecaster continually recalibrating to a market that was, at the time, outperforming earlier expectations. The narrative is one of accelerating growth and sustained optimism.
**What we're watching:** With 2025 in the rearview mirror, we'll be watching for final industry reports to see if they matched the heady 11% growth forecast. We are also tracking whether the 2026 midterm elections delivered the anticipated 8.9% ad market expansion.