Why Is KLAVIYO INC Series A (KVYO) Stock Down Today?

KVYO stock is down 5.39% at $17.37 in today's session. The decline follows mixed financial results and ongoing concerns over gross margin pressures despite strong top-line growth. The stock opened lower and continued to trend downward throughout the morning, with volume already reaching 4.0 million shares, or 0.7 times the 3-month daily average.

What Happened

Klaviyo reported Q2 2026 results that showed solid revenue growth but came with a reduced gross margin outlook. The company's enterprise, AI, and messaging segments contributed to the top-line beat and raised guidance. However, investors appear to be focusing on the mixed margin performance and lingering risks related to its Shopify integration. The stock opened at $18.12, a 1.3% gap down from the prior close, and continued to fall to a session low of $17.35. The CFO and Co-CEO have sold shares in recent months, with insider sales totaling $9.8 million in the last 90 days.

What The Data Shows

The stock has traded between $12.53 and $36.23 over the past 52 weeks. With a market cap of $4.8 billion and a P/E ratio of 893.5, the stock remains expensive despite its recent pullback. Revenue growth has been strong at 28.9% trailing twelve months, but net margin remains at just 0.5%. The session has seen a steady decline from the open, with no unusual options activity reported. The stock’s beta of 0.54 suggests it is less volatile than the broader market.

What To Watch

Klaviyo has not announced an upcoming earnings date. Investors will need to monitor coverage breadth and any further developments on gross margin trends or enterprise growth.