Zacks Intelligence

Zacks Intelligence

Zacks Intelligence was founded in 1978 by Leonard Zacks, a University of Chicago MBA and MIT PhD whose academic research on earnings surprises formed the backbone of the firm's quantitative methodology. The company built its reputation on the Zacks Rank, a proprietary system that sorts stocks based on changes in consensus analyst estimates. The data operation collects and normalizes earnings forecasts from hundreds of sell-side analysts, producing a consensus that professional subscribers use for screening and idea generation. Today Zacks operates through two distinct engines: a large-scale equity research and data licensing business serving individual and professional investors, and Zacks Investment Management, an SEC-registered investment advisor. The asset management arm runs mutual funds and ETFs that systematically apply the firm's earnings-revision models. The core conviction remains that stocks with rising earnings estimates outperform—most visibly through the Zacks Rank #1 Strong Buys. Coverage extends across US large cap, mid cap, small cap, and international equities, with additional thematic strategies targeting sectors like technology and energy. Distribution channels include direct retail subscriptions, institutional data feeds, and a partnership with Charles Schwab to offer model portfolios to advisors. Zacks remains a privately held, family-run firm headquartered in Chicago. Len Zacks' sons Mitch and Ben serve as portfolio managers, maintaining the family's operational continuity. The firm employs a significant research and technology workforce to maintain its database and ranking systems, though exact headcount is not publicly disclosed. It does not run a philanthropic foundation or multi-family office vehicle alongside its core business. In January 2024, the firm issued a public statement clarifying it had never authorized the use of its name or employee personas in trading scam advertisements proliferating on social media, highlighting the brand's widespread unauthorized use in fraudulent schemes. Structurally, Zacks is rare among financial data firms: it both sells research tools and directly manages money against the same signals it publishes. This creates a built-in liquidity of intellectual property—the research subsidizes the data infrastructure, and the asset management validates the efficacy of the models. The family-held structure has allowed the firm to sit outside the consolidation wave that absorbed competitors like Thomson Financial or FactSet, protecting the continuity of its core earnings-revision methodology.