Google Ads ROAS and AOV Benchmarks

Macro-Trend Analysis: Shopping Profitability & AOV

Overall Trajectory & Performance Gaps

• Sustained YoY Growth: Both Median ROAS and AOV consistently outperform the previous year across the 365-day trajectory, indicating robust nominal spending and improved ad efficiency.
• Volatility Periods: The ROAS gap widens significantly in late December and March. Conversely, the gap narrows sharply in late November, reflecting intense holiday auction compression.

Metric Divergence: CAC vs. Pricing Power

• Holiday Margin Compression: During late November (Black Friday/Cyber Monday), AOV remains elevated, but ROAS drops. This divergence reveals that surging Customer Acquisition Costs (CAC) from hyper-competitive CPCs outpaced retailer pricing power, temporarily compressing profitability.
• Q1 Efficiency Surge: In February and March, AOV and ROAS spike simultaneously. Retailers maintained higher price points while benefiting from cheaper post-holiday CPCs, maximizing return on ad spend.

External Macro & Platform Drivers

• Inflationary AOV: The persistent YoY rise in AOV is largely driven by macroeconomic inflation and retailers raising free-shipping thresholds to combat rising fulfillment costs, rather than organic increases in consumer cart size.
• Algorithmic Bidding Maturity: The sustained ROAS elevation—despite broader consumer economic caution—highlights the maturation of AI-driven platform changes. Widespread adoption of Value-Based Bidding (VBB) and consolidated automated campaigns allows advertisers to bid more efficiently on high-value carts, successfully insulating profitability against rising baseline costs.