Podcast advertising spending increased 18% year over year in the third quarter of 2026, according to Magellan AI’s November research summary. The company analyzed 102,059 episodes of popular U.S. podcasts.
Average advertiser ad load reached 8.86%, compared with 8.75% in the second quarter—an increase of 0.11 percentage points. Magellan also counted 1,468 brands advertising on podcasts for the first time in its tracking, with nearly one in five new brands including sports podcasts in their media plans.
Seven of the quarter’s 10 largest spenders were also in the previous quarter’s top 10. That combination points to continuing activity among established buyers alongside newly detected advertisers; it does not establish how evenly spending reaches smaller shows.
The public report page identifies the episode sample but does not provide the full spending-estimation methodology. The full report requires a download form. These figures should therefore be attributed to Magellan’s analysis, rather than treated as an audited census of every podcast transaction.
For station sales teams and independent producers, the practical next question is how a particular show’s inventory, advertiser renewals and listener response compare with its own history. A rising market estimate alone does not justify adding more commercial interruptions.
Related: Advertisers identify podcast measurement and ad-load barriers.