HubSpot Q1 2026: $881M Revenue but 18% Constant Currency Growth — Stock Drops 16% as AI Monetization Remains 'Emerging'

SaaStr·high signal

HubSpot reported Q1 2026 revenue of $881M with 23% reported growth, but constant currency growth was only 18% and Q2 guidance dropped to 16% CC — triggering a 16% after-hours stock decline while peers like Twilio, Atlassian, and Palantir showed growth reacceleration. AI credits consumed grew 67% QoQ with 10,000 Prospecting Agent activations (+57% QoQ), but the CFO described AI monetization as 'emerging,' not core. The market is repricing HubSpot from potential reaccelerator to steady compounder — a cautionary signal for CRM incumbents whose AI features aren't yet driving revenue.