SMWB Similarweb Ltd. downgraded to Market Perform by William Blair Feb 2026

William Blair downgraded Similarweb Ltd. (SMWB) to Market Perform on February 18, 2026. This SMWB analyst rating change followed the company’s Q4 2025 results and investor questions about AI deal timing. The downgrade moved the stock by 3.89% ($0.1) on the session noted and comes as the market weighs 2026 guidance and cash flow. Investors should view this SMWB analyst rating as a signal to reassess near-term growth assumptions and watch upcoming revenue trajectory and deal cadence closely.

SMWB analyst rating: William Blair downgrade details

On February 18, 2026 William Blair cut Similarweb Ltd. (SMWB) to Market Perform from Outperform. The change was published at 11:59 AM and reported by TheFly. The downgrade left no public price target from William Blair in that note. source

SMWB analyst rating: Reasons cited for the downgrade

William Blair flagged slower AI/LLM deal timing and guidance uncertainty after the Q4 2025 call. The call included analyst questioning from William Blair’s Arjun Bhatia and references to product-led revenue pacing. Seeking Alpha’s transcript and recap highlight management’s 2026 revenue target of 10% growth and related execution risks. source

SMWB analyst rating: Market reaction and stock metrics

The reported downgrade corresponded with a 3.89% ($0.1) price move in the session noted. Similarweb’s market cap stands at $219,154,502 based on provided data. Short-term trading will likely track near-term guidance, cash flow, and AI deal updates.

SMWB analyst rating: What Market Perform means for investors

A Market Perform rating signals a neutral outlook and suggests limited near-term upside versus peers. For investors, this SMWB analyst rating implies monitoring management execution on the 10% 2026 revenue goal and AI contract rollouts. Defensive holders may wait for clearer signs of deal acceleration or margin improvement.

SMWB analyst rating: Historical analyst coverage context

This is the first Downgrade entry listed here and William Blair moved the stock from Outperform to Market Perform. Historical coverage included active questioning during the Q4 call from Barclays and William Blair. Investors should weigh single-firm actions against broader analyst consensus and company guidance.

SMWB analyst rating: Meyka grade and longer-term view

Meyka AI rates SMWB with a grade of B. This grade factors in S&P 500 benchmark comparison, sector performance, financial growth, key metrics, and analyst consensus. Use Meyka AI’s real-time tracking and forecasts for ongoing coverage and to compare rating shifts across peers. https://meyka.ai/stocks/SMWB

Final Thoughts

William Blair’s downgrade of Similarweb Ltd. (SMWB) to Market Perform on February 18, 2026 refocuses investor attention on execution and revenue timing. The SMWB analyst rating change arrived after the Q4 2025 call, where management set a 10% revenue target for 2026 and flagged AI deal pacing as a key variable. The immediate market response was a 3.89% ($0.1) move, and Similarweb’s market cap sits at $219,154,502. No new William Blair price target was published with the note, so investors should treat the action as a neutrality signal rather than a sell verdict. Given the single-firm downgrade, investors should compare this SMWB analyst rating to broader coverage and watch upcoming contract updates, cash flow metrics, and execution against guidance. Meyka AI rates SMWB with a grade of B. This grade blends benchmark, sector, growth, metrics, and analyst views but is not a guarantee and does not constitute financial advice. For full context, see the William Blair note and the Q4 transcript cited above. TheFly report and Seeking Alpha transcript provide source detail.

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