Ad Price Floors

Ad Price Floors are the lowest price that a publisher will sell their ad inventory for on the open exchange/marketplace. For instance, if a publisher sets their ad price floor at $1.25 CPM it means that a publisher will not accept bids lower than $1.25 CPM for the ad unit(s) on their website/mobile app. Applying price floors is an advanced tactic that publishers will use to find the optimal price that advertisers are willing to pay. They also balance their price floor strategy with the coinciding fill rate for their ad inventory.