targetmost

Targetmost is a term used in advertising analytics to describe the degree to which delivered impressions match a predefined target audience. It measures the proportion of impressions that reach users who satisfy specified targeting criteria, relative to the total number of impressions served in a campaign.

Calculation: Targetmost = (impressions to target group) / (total impressions). The metric yields a value between 0 and 1, where higher values indicate tighter alignment with the target. In some implementations, the denominator may be restricted to impressions served to users with sufficient data quality or within a certain geography.

Example: A campaign serves 8,000 impressions, of which 5,200 reach users who meet the target criteria. The targetmost would be 0.65.

Usage: Marketers use targetmost to assess targeting effectiveness, compare audiences or creatives, and inform bidding or budget allocation. It is often reported alongside reach, frequency, and click-through rate.

Limitations: Targetmost relies on the accuracy of the underlying audience data. Privacy restrictions, data quality issues, and segment overlap can distort the metric. It also does not directly account for engagement or conversion value; a high targetmost may still yield low business impact if the audience is not responsive.

Standardization and history: The term targetmost is not a standardized industry metric and may be defined differently across platforms. It appears in marketing analytics discussions as a descriptive measure rather than a universally adopted KPI.

See also: targeting accuracy, reach, precision, recall, frequency, click-through rate, conversion rate.