Breaking Down Advertising Revenue Growth into Prices and Impressions
Break advertising revenue into impressions and average ad prices. Examine how user growth, ad load, regional and format mix, and advertising effectiveness affect the quality of growth.
To interpret advertising revenue changes, examine ad impressions and average prices measured on the same basis. A higher average price does not mean every ad price increased: changes in regional, format, and customer mix can affect the average.
Growth rates combine through multiplication rather than addition
If advertising revenue is defined as impressions multiplied by average price per impression, changes in those two variables are also linked multiplicatively. Meta reports ad impressions and average price per ad separately in official disclosures. Simply adding their growth rates misses the interaction effect when both increase. However, rounding, exchange rates, and business scope in company disclosures can prevent the product of reported growth rates from exactly matching revenue growth. Since total company revenue may include non-advertising businesses, first align the comparison with advertising revenue.
Separate time spent from ad load when impressions rise
More users or longer time spent can create more opportunities to show ads. Impressions can also rise by showing ads more frequently during the same amount of user time. Although the latter can boost near-term revenue, check its effect on user experience and long-term engagement. New ad placements and expanding short-video formats may increase impressions while lowering average prices. In that case, rather than interpreting lower prices alone as a collapse in ad demand, consider regional and placement mix alongside overall revenue trends. Active users and ad impressions are different concepts.
Connect average prices with advertiser outcomes
Average prices may be influenced by advertising performance, targeting, and measurement changes as well as advertiser demand and auction competition. To assess whether high prices can persist, consider whether advertisers receive sufficient value through purchases, signups, or other outcomes. Cost per click and price per impression use different charging bases and should not be compared directly. Also check how sensitive advertisers' industries are to the economic cycle, seasonal events in particular countries, and exchange rates. Assessing profitability requires checking whether revenue is growing faster than data center or content costs; do not estimate company-wide profit from advertising revenue growth alone.
Worked example
Hypothetical example: If ad impressions rise 20%, from 100 to 120, and the average price rises 10%, from 10 to 11, the revenue index increases 32%, from 1,000 to 1,320. The 2 percentage point difference from 20%+10%=30% is the interaction effect. Conversely, if impressions rise 20% and prices fall 10%, revenue grows 1.2×0.9-1=8%. A 20% increase in impressions alone does not mean revenue rose 20%.
What to check
- Have you distinguished advertising revenue from company-wide revenue?
- Have you checked the product of impression and price growth factors?
- Have you separated longer user time from increased ad load?
- Have you examined regional, format, and exchange rate effects on average prices?
Sources and primary materials
This is educational material about research methods. For an actual company decision, verify the filings and primary sources for the relevant period.