Updated: Q4 2025EMARKETER is the leading research, data, and insights provider, helping companies maximize revenue, optimize spend, and anticipate digital disruption through our carefully vetted data sources and proprietary research methodology. Updated: Q4 2025Estimates are based on the analysis of multiple factors related to advertising performance and spending efficiency, including macroeconomic conditions; historical trends in digital ad spending and return ratios; reported financials from major ad platforms and publishers, and data from first-party performance benchmarks. Additional inputs include consumer spending and ecommerce sales data; media consumption and device usage trends. Updated: Q4 2025Return on advertising spend (ROAS) growth measures the year-over-year change in how much sales revenue is generated for every dollar spent on advertising. A higher ROAS indicates more efficient and profitable ad performance.
Additional Note: All numbers are EMARKETER estimates.