Five9 beats Q1 revenue estimates with strong AI growth, but stock faces competition and technical overbought risks.

Five9, Inc. reported Q1 2026 revenue of $305 million, surpassing expectations with a 9% year-over-year increase. AI-driven subscription revenue surged 68%, now making up 13% of total subscription revenue. Profit margins improved with adjusted gross margin at 64% and adjusted EBITDA margin at 24%, alongside free cash flow of $49 million. Despite strong AI momentum, growth remains uneven amid intense competition, and the stock may be technically overbought following a recent sharp rally.