# Sensible Investor > Filing-based evidence for comparing US equity funds: active share, filed expense ratios, portfolio overlap, fee drag, and reproducible limitations. Canonical site: https://sensible-investor.com/ Operator: AdvisorWorld.com Inc. Editorial standards: https://sensible-investor.com/editorial-standards Methodology: https://sensible-investor.com/methodology Citation guidance: https://sensible-investor.com/cite-us ## Primary resources - Fund registry: https://sensible-investor.com/registry - Portfolio overlap tool: https://sensible-investor.com/overlap - Portfolio X-ray: https://sensible-investor.com/x-ray - Research notes: https://sensible-investor.com/research - Fund analysis glossary: https://sensible-investor.com/glossary - Embeddable evidence cards: https://sensible-investor.com/embed - Registry update feed: https://sensible-investor.com/registry/feed.xml ## Evidence boundaries - Portfolio holdings and active-share figures derive from cited SEC Form N-PORT filings. - Expense ratios derive from cited SEC Risk/Return filings for the named share class. - Licensed market-return calculations are labeled and are not offered as downloadable source data. - Published registry figures show their source-event dates under the registry methodology. Missing evidence remains unavailable, never zero. - Active share and overlap measure portfolio difference, not skill, suitability, or future performance. ## Citation preference Link to the canonical fund page or its permanent as-of record. Include the fund name, figure, source-event date, and URL. Do not cite an embed in place of its linked source record.