AI Fuels Step-Function Growth in Top Performers

Twilio reaccelerated from 4% YoY growth in Q2 2024 to 20% in Q1 2026, its highest revenue and gross profit growth in over three years, driven by AI-native Conversational Intelligence, Branded Calling add-ons, and voice usage for AI agents—turning the previously dismissed voice segment into the fastest-growing line. Atlassian surged to 32% growth in Q3 FY26 (high-20s stripping $50M pull-forward), with Rovo AI reaching 5M monthly active users, 20%+ MoM AI credit usage growth, and Rovo users expanding ARR at 2x non-users' rate, prompting a 30% stock jump. Datadog hit its first $1B quarter at 32% YoY (from 25-28% band), with sequential net new revenue at $53M (2x prior Q1, Q2 guide ~$69M), 8-figure Anthropic deal, and 5 products over $100M ARR, yielding a 28% intraday stock pop. Cloudflare accelerated to 34% (third straight quarter up from 27% trough), tying it to AI-driven internet re-platforming, while cutting 1,100 staff (25% of workforce, $140-150M charges) to shift to agentic AI model—explicitly replacing internal work with AI for operating leverage. Palantir led at 85% growth to $6.5B+ ARR, with record US commercial contract value, rising deal counts via AIP, and US business expected to double again in 2027.

These jumps aren't gradual: Twilio held 10-15% for six quarters before 20%; Atlassian 21-23% for a year before 32%; Datadog 25-28% for six quarters before 32%. Investors reward measurable AI revenue links—stock pops of 19-30%—killing the 'AI-kills-B2B' thesis across diverse models.

Stable Compounders Lacking AI Proof Face Multiple Pressure

HubSpot held ~19% constant-currency growth for five quarters (18% prior four, Q1 at 19%), refuting bear predictions of single-digit collapse from AI seat compression, with Customer Agent driving 60% of AI credits and strong activations. Yet no acceleration—flat line, not V-shape—and stock dropped 20% despite beat, as market pays for stability, not AI reacceleration. Shopify printed 34% but guided Q2 to high-20s (within 27-34% band for seven quarters), fueled by GMV, payments, international—not quantified AI like agentic checkout—leading to 9% pre-market drop. Both execute well as compounders but must tie AI to revenue lifts for re-rating.

Tie AI to Dollars for Multiples; Expect Sudden Jumps

Reacceleration hits as step-functions in 1-2 quarters, not trends—model it that way to avoid missing signals. Markets bimodal: +20-30% stock pops for AI revenue proof (e.g., 2x ARR growth, specific deals), haircuts for features/narratives. Per-seat pricing survives; AI boosts budgets if you capture them. Cloudflare proves leaders cut headcount post-acceleration for AI leverage. Bottom likely in for AI-tappers like these five; others like HubSpot/Shopify must deliver next.