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ReferenceFebruary 18, 20262 min read

Performance Max (PMax)

Performance Max (PMax) explained — Google's all-inventory automated campaign, now used by ~71% of accounts and central to 2026 strategy.

By The Ad Spend
A meeting room with a colleague sipping coffee.

Updated July 2026.

A goal-based Google campaign type that serves across all inventory — Search, Shopping, Display, YouTube, Discover, Gmail and Maps — from a single campaign, with Google's AI controlling targeting, bidding and creative assembly.

Benchmark range

71% of surveyed advertisers used PMax in 2025 (Fluency survey, 170+ respondents — survey data, not account share). Early adopters report ~13-15% more conversions at similar CPA or ROAS.

Why it matters

PMax maximizes reach and automation but reduces visibility and control. Asset quality and conversion-signal accuracy are the main levers advertisers still hold.

2026 update

In Q2 2026 PMax gained channel-level reporting, Smart Bidding Exploration rolled out to all feed-less PMax campaigns globally (~June 15, 2026), and the video asset limit rose from 5 to 15. Because Shopping and Display inventory increasingly flow through PMax, standalone channel benchmarks are shrinking — judge PMax on blended ROAS or MER, and protect your feed and brand-exclusion lists.

Where it applies

  • Google Ads

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