Shares of Klaviyo, Inc. (KVYO) surged 5.70% in after-hours trading on Tuesday, following the release of its impressive first-quarter earnings report and raised guidance for the upcoming periods. The marketing automation company demonstrated robust financial performance, exceeding analyst expectations and showcasing strong year-over-year growth.

Klaviyo reported adjusted earnings per share of $0.14 for Q1, surpassing the analyst consensus estimate of $0.12 by 16.67%. This represents a 7.69% increase from the same period last year. The company's quarterly sales reached $279.83 million, beating the analyst consensus estimate of $267.83 million by 4.48% and marking a significant 33.26% year-over-year growth.

Looking ahead, Klaviyo raised its guidance for both Q2 and the full fiscal year 2025. The company anticipates Q2 revenue between $276 million and $280 million, above the consensus estimate of $275.8 million. Additionally, Klaviyo increased its FY25 revenue guidance to a range of $1.171 billion to $1.179 billion, projecting a year-over-year growth of 25% to 26%. The company also expects a strong Q2 operating margin of 10%-11%, further boosting investor confidence in its profitability and growth prospects.