Datadog +66% YTD, First $1B Revenue Quarter — SaaStr Names It the Cleanest AI Beneficiary in B2B SaaS

SaaStr·high signal

While the broader SaaS index is down ~40% in 2026, Datadog hit $222/share (+66% YTD) and crossed $1B quarterly revenue for the first time, with $4.23B ARR growing 32% YoY and six consecutive quarters of re-acceleration. The AI picks-and-shovels thesis is proven: 15 customers spend $1M+ on AI-specific observability, 56% use 4+ products, NRR recovered to 120%+, and even non-AI customer growth re-accelerated to mid-20s%. If you're shipping AI agents, you need observability — Datadog is the infrastructure layer that AI makes more essential, not less.