Similarweb Reports Mixed Q4 Results, Shares Tumble on Slower Growth Outlook
Digital intelligence provider SIMILARWEB LTD (NYSE:SMWB) reported financial results for the fourth quarter and full fiscal year 2025 that fell short of analyst expectations on the top line, while narrowly beating on profitability. The company's forward-looking guidance, which projects a deceleration in revenue growth, appears to be the primary driver behind a sharp negative reaction in the stock during after-hours trading.
Earnings and Revenue Versus Estimates
The company's fourth-quarter performance presented a mixed picture against Wall Street forecasts. While Similarweb managed to deliver a slight beat on adjusted earnings per share, its revenue growth missed estimates and, more critically, failed to accelerate as management had previously anticipated.
- Q4 2025 Revenue: Reported at $72.8 million, an increase of 11% year-over-year.
- Vs. Estimate: Missed the analyst consensus estimate of approximately $78.0 million.
- Q4 2025 Non-GAAP EPS: Reported at $0.03.
- Vs. Estimate: Slightly above the analyst consensus estimate of $0.032.
- Full-Year 2025 Revenue: Reached $282.6 million, representing 13% growth over the prior year.
The market's reaction was swift and severe. Following the release, the stock is indicated down approximately 19.5% in after-market trading. This sell-off extends recent negative trends, with the stock having declined roughly 36.5% over the past month.
Guidance and Analyst Expectations
A significant factor in the market's disappointment is the company's outlook for the coming year. Similarweb's guidance for fiscal 2026 calls for revenue between $305 million and $315 million, representing approximately 10% growth at the midpoint. This forecast falls notably below the current analyst sales estimate of $331.1 million for the full year 2026.
Furthermore, the company's first-quarter 2026 revenue guidance of $72 million to $74 million (approx. 9% growth at the midpoint) also trails the analyst estimate of about $79.4 million for Q1.
CEO Or Offer acknowledged the shortfall, stating, "While the scale of new larger, multi-year opportunities has resulted in longer sales cycles and revenue growth did not yet accelerate in the fourth quarter as we expected, the demand we see in the pipeline... reinforce our confidence in our strategy." This points to a longer-than-anticipated sales cycle for larger, strategic deals, particularly those tied to the company's AI initiatives.
Key Highlights from the Quarter
Beyond the headline financials, Similarweb highlighted several operational and strategic developments:
- Customer Base: Total customers grew 11% year-over-year to 6,128. The number of larger customers (with Annual Recurring Revenue over $100,000) increased 12% to 454 and now contribute 63% of total ARR.
- Retention Dynamics: The overall Net Retention Rate (NRR) dipped to 98% from 101% a year ago. For larger customers (ARR >$100k), NRR was 103%, down from 112%. This suggests some moderation in expansion revenue within the existing customer base.
- AI Product Launches: The company launched "Similarweb AI Studio," a conversational AI agent designed to provide insights from its datasets. It also announced a collaboration with autonomous AI agent platform Manus, opening a new distribution channel for its data.
- Profitability Metrics: On a non-GAAP basis, the company remained profitable, with an operating profit of $3.4 million (5% margin) in Q4 and $9.1 million for the full year.
Conclusion
Similarweb's fourth-quarter results underscore the challenges of transitioning its high-value digital data asset into accelerated growth within a evolving sales environment. While the company continues to demonstrate operational discipline and is making clear strides in productizing its data for the AI era, the market is penalizing the slower-than-expected revenue trajectory and the downward revision embedded in its 2026 guidance. Investors will be closely watching for signs that the company's investments in AI and sales specialization begin to shorten sales cycles and convert pipeline demand into accelerated top-line growth in the coming quarters.
For a detailed look at Similarweb's historical earnings and future analyst estimates, you can review the data here.
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