Zacks Industry Outlook Similarweb and Perion

Zacks ranks Internet - Content #233, in the bottom 6% of more than 247 industries, after its 2026 earnings estimate fell 17.2% since Jan. 31, 2026; the industry declined 29.1% over the past year while the S&P 500 gained 16.8%. The outlook faces ad-spending pressure, rising AI infrastructure costs and regulatory headwinds, though Similarweb reported AI-related revenue at 13% of Q2 2026 revenue and more than $60 million in cumulative multi-year contracts, while Perion One spend rose 15% year over year to $156.7 million. Zacks highlights both companies as Buy-rated, but their shares diverged YTD: Similarweb rose 7.2%, while Perion fell 10.8%.

Analysis

The key distinction is monetization quality, not whether either company can attach an AI label. Similarweb may sell a scarce input—behavioral data—to AI developers, but LLM training demand can be episodic; durable value depends on recurring usage, renewal economics, and rights to use the data. The cited multi-year contract value is not equivalent to near-term recognized revenue. Watch AI revenue mix, renewal rates, customer concentration, and cash conversion before capitalizing it as a structural growth stream.

Perion is more exposed to the advertising cycle and intermediary economics. Growth in platform spend or optimization-agent usage can coexist with weak net revenue if take rates compress, budgets rotate, or large agreements ramp later than promised. That makes Perion’s second-half catalyst more timing-sensitive than Similarweb’s enterprise-data thesis, but also creates upside if contracts translate into measurable net revenue and margins.

Near term, the sector’s estimate deterioration argues against treating a low relative sales multiple as a floor; P/S comparisons obscure differences in margins and revenue quality. Over 1–3 months, validate Perion’s announced deal contribution and monitor ad-budget indicators. Over 6–18 months, the structural risk is AI gateways capturing discovery and reducing publishers’ traffic—and thus ad inventory—while data providers may benefit selectively. The contrarian opportunity is a narrow relative-value position, not a broad Internet-content rebound. Promotional industry rankings and company-reported usage metrics are not substitutes for independently verified earnings conversion.

Key Decisions for Investors

• Consider a modest, dollar-neutral long SMWB / short PERI relative-value position rather than a sector-wide long. Thesis: recurring enterprise data monetization may prove less directly sensitive to ad-budget cycles than Perion’s intermediary spend; keep sizing small because both remain exposed to AI execution and risk-on factor reversals.
• Use the next 1–2 earnings updates as confirmation points. For SMWB, require evidence that AI-related demand converts into recurring recognized revenue, renewals, and cash flow—not merely contract value or mix. For PERI, require strategic agreements to contribute to net revenue and profitability, not only gross platform spend.
• Falsify the pair if Similarweb reports slowing AI-related revenue or weak enterprise renewals, while Perion shows sustained deal-driven net revenue and margin improvement. Reassess also if broad ad spending accelerates enough to materially benefit Perion or if either company revises guidance down.
• Avoid buying the industry solely because its sales multiple is below the broader technology sector: the comparison does not control for growth, margins, or revenue mix. Track estimate revisions and ad-demand indicators before adding broad exposure.