Klaviyo, Inc. Series A (KVYO) Stock Price & How to Invest

Klaviyo is a cloud software company that helps consumer brands collect customer data and turn it into automated marketing and service across email, SMS, WhatsApp, push notifications, reviews, and increasingly AI agents. It began as an email-marketing platform tightly integrated with online stores and has been repositioning itself as a broader B2C customer relationship management (CRM) system, unifying shopper data with the messaging that acts on it. Customers pay recurring subscriptions that scale with the size of their contact lists and message volume, so revenue grows as merchants add subscribers and adopt more products. In Q1 2026 the company reported revenue of ~$358 million (up 28% year over year), a small GAAP net profit, a non-GAAP operating margin of ~16%, dollar-based net revenue retention of ~110%, and more than 196,000 customers. Management raised full-year 2026 revenue guidance to roughly $1.51 billion to $1.52 billion (about 23% growth) and authorized a $500 million share buyback.

Klaviyo was founded in 2012 in Boston by Andrew Bialecki and Ed Hallen, two former Applied Predictive Technologies colleagues who bootstrapped the company to about $1 million in revenue before raising outside capital. Its trajectory changed in 2022 when Shopify named it the recommended email partner for Shopify Plus and made a $100 million strategic investment. Klaviyo listed on the NYSE in September 2023 at a $30 offer price and roughly a $9 billion valuation. Andrew Bialecki serves as co-CEO focused on the AI product vision alongside Chano Fernandez, who leads go-to-market and operations. The company disclosed that Chief Financial Officer Amanda Whalen plans to step down in 2026, a leadership change investors are watching.

The dominant risk is concentration in the Shopify ecosystem, where a large majority of recurring revenue is tied to merchants on one platform Klaviyo does not own, so any change in that partnership, its terms, or its own competing tools would matter a great deal. Growth is also slowing from earlier rates as the base gets bigger, and the stock trades on continued execution rather than deep current profits. Competition is intense across marketing automation and CRM, from email and SMS specialists to large marketing clouds, which can pressure pricing and customer acquisition costs. The company is exposed to overall consumer and e-commerce spending, since its customers pay based on list size and message volume, and a planned CFO transition adds near-term leadership uncertainty.

A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Klaviyo, Inc. Series A's investor relations page or your broker.

• Revenue (Q1 2026 quarterly): ~$358 million, up 28% year over year
• FY2026 revenue guidance: ~$1.51 to $1.52 billion (about 23% growth)
• Customers: ~196,000+
• Net revenue retention: ~110% (dollar-based)
• Stock price / market cap: ~$16 per share, ~$4.9 billion market cap
• GAAP P/E: not meaningful (minimal GAAP profit)

Figures are approximate and tied to the asOf date; verify live numbers before acting. Klaviyo is a high-growth software company that only recently reached GAAP profitability, so a trailing P/E ratio is not a useful gauge and investors typically look at revenue growth, retention, and margins instead. The shares have been volatile, trading well below their 52-week high near $37, and the valuation reflects expectations for continued 20%-plus growth and expanding margins.

There are three common ways to get KVYO exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic basket, so KVYO sits alongside other stocks that express the same thesis.

Walnut takes the basket route. Describe a thesis where KVYO fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.

Klaviyo is a fast-growing marketing and B2C CRM software company that reported ~$358 million in Q1 2026 revenue (up 28% year over year), turned a small GAAP profit, serves more than 196,000 customers, and is repositioning around AI agents, while carrying a rich growth-software profile and a notable dependence on Shopify.

Whether KVYO is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is KVYO a buy?, and where the stock could go from here in the KVYO stock forecast.

For income investors, whether KVYO pays a dividend and how the payout looks is covered in does KVYO pay a dividend?