Yield

Yield refers to the amount of revenue a publisher is able to generate from its ad inventory. More broadly, it describes the ability to maximize both revenue and the efficient use of available impressions.

A publisher with high yield rates is successfully selling a large proportion of its available inventory; low yield rates indicate the opposite — much of that inventory goes unsold or undermonetized. To improve yield, publishers commonly employ price floor mechanisms such as hard-floor prices and soft-floor prices, which set minimum acceptable bids and help prevent inventory from clearing at undervalued rates.

Yield optimization is an ongoing practice in programmatic advertising, balancing fill rate against CPM to extract the most revenue possible from every available impression.