Independent US ETF data: holdings, fees, overlap, returns, each with its source and date.
Access independent research on US-listed ETFs including holdings, expense ratios, performance against stated objectives, overlap analysis between funds, and historical data. Search by ticker or theme to compare funds and find exposure to specific companies or sectors.
Try asking Muse: "Show me the cheapest technology ETFs and how much overlap they have with each other."
Source: Found in the official MCP Registry (com.etfiq/etfiq) · First listed September 24, 2026
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https://mcp.etfiq.com/Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
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https://mcp.etfiq.com/Response time at the last check: 76ms. Worked in 100% of checks over 30 days.
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etf_searchFind US listed ETFs by ticker, fund name, or a word from the name. Suited to a fund named loosely: etf_profile then takes the ticker it returns. Refuses rather than returning a near match: a refusal says why, and for a fund it means ETFIQ does not publish it. A former ticker (SPLetf_profileEverything ETFIQ publishes about one fund: issuer, category, and each number with its source and as-of date, plus a one sentence verdict on how it did against what its own label promises. benchmark is the fund's own benchmark as its page names it: its name, how it was set, and thetf_holdingsAnalyst: what a fund holds, by weight, and how old that is. Use after etf_profile to read the book, or before etf_overlap to see what two funds share. top_n limits the rows. lag_days says how old the book is: an issuer file read today and a filing from two months ago both come baetf_themeScout and Strategist: every US listed fund in a theme, largest first, with what each charges and how much of it is already in the S&P 500. For "what X ETFs are there" or "top X ETFs" questions it returns the whole published set rather than a sample.etf_themesStrategist: every theme ETFIQ publishes and how many funds each holds. Call when unsure what a theme is called, then etf_theme.etfiq_pageRead any published ETFIQ page as text: a theme hub, a ranking, a comparison of two funds, an issuer, a methodology note, a dated study. Takes a path like /themes/cyber or a full etfiq.com URL. This reaches all 40,000 pages, including everything the typed tools above do not cover,etfiq_sectionsWhat ETFIQ publishes, section by section, with a page count for each, and start_here: the main pages (fund flows, the weekly flows report, ETF model portfolios and benchmarks, the filed prediction-market and sports-team funds, issuers, methodology, rankings, the screener) with whetfiq_listThe pages inside one section, optionally filtered to those whose address contains a word. Use after etfiq_sections to find a page, then etfiq_page to read it. The count returned is the whole matching set even when the list is capped.etf_screenEvery fund matching some filters, each with its net assets and the source and date that number came from. Filters: desk, issuer, max_fee_pct, min_assets_usd; and, from the ETFIQ screener, tracks (the index the funds track, such as "S&P 500"), min_yield_pct (12-month yield of at letf_overlapAnalyst and Risk Officer: how much of their weight two funds hold in common, as ETFIQ published it on the comparison page for that pair. Use when asked whether two ETFs are the same thing, or whether owning both adds anything. Refuses rather than estimating when the pair is not cetfiq_as_ofWhat ETFIQ published on a given date, from its frozen dated archive. Use when a question is about a past date, or when a number needs to stay true after it is quoted: every other tool here answers about today and today moves overnight. Takes YYYY-MM-DD. Covers the pieces written etf_holdersWhich US listed ETFs hold a given company, ranked by how much of each fund it is. It answers "which ETFs hold X", "which fund holds the most X" and "how do I get exposure to X" questions, where X is a company rather than a fund, and for "which bond ETFs hold X's debt". Takes a coetf_rankingsStrategist and Scout: the ranked lists ETFIQ publishes, or one of them. Each ranks ONE published number inside a stated set: the cheapest funds in a theme, the leveraged funds furthest from their stated multiple, the buffer funds closest to their cap. Call with no argument for thetf_flowsFund flows as ETFIQ publishes them, computed from each fund's daily change in shares outstanding times its NAV. With ticker: that fund's net flow over 1D, 1W, 1M, 3M, YTD and 1Y, each with its dates and its share of net assets at the window's start, its streak, and its filed N-POetfiq_methodologyHow ETFIQ computes a number, from the methodology page that says so: one page per desk (income, buffer, leverage, crypto, alternatives, themes), flows, scores, categories (how stock and bond funds are placed and which benchmark each is measured against), portfolio look-through, afind_pageThe designed ETFIQ pages that answer a question, best first, at most three: a fund, a comparison of two funds, the ETFs that hold a company, a ranking, a theme, a category, an issuer, the weekly flows report, a flows ranking, a dividend calendar, a screen, a benchmark, a model polist_benchmarksThe ETFIQ benchmarks: published, rules-based yardsticks for model portfolios, each a written rule over broad, low-cost ETFs, grouped in families (strategic, tax-aware, factor, income, tactical, thematic) by stock share. Filter by family, or by band (a name such as moderate, a stoget_benchmarkOne ETFIQ benchmark in full: its rule as the methodology states it, the funds and weights in force (with SEC series ids and each fund's expense ratio and its date), and every statistic ETFIQ computes for it by window (total return, return a year, volatility, maximum drawdown, Shacompare_to_benchmarkSets an allocation ETF, or a portfolio build_portfolio builds, beside an ETFIQ benchmark. With ticker (such as AOR): how the fund did against the benchmark for its band (set by its look-through stock share), over the same dates, as ETFIQ published it: total returns by window and build_portfolioBuilds a custom portfolio of US listed ETFs from construction choices about the portfolio, and shows the rule it applied. Two forms. Weights (ETFIQ custom construction rule, version 2): pass weights, the user's own percent for each asset class, adding to exactly 100, for example etf_committeeHow each seat of the IQ Investment Committee reads one ETF: 12 legends, 11 seats named for investing philosophies (Bogle-style Low Cost, Graham-style Margin of Safety and the others) and ETFIQ Skeptic, each with its state (Supports, Mixed, Challenges or Not enough data), how muchetf_scorecardThe risk and return scorecard for one ETF against its own ETFIQ benchmark, or, with versus, for two ETFs side by side as their comparison page prints it: total, annualised and price return, volatility, downside deviation, maximum drawdown with its dates, Sharpe, Sortino and Calmaetf_promiseWhether one ETF delivers what its category promises, from the ETFIQ Promise Index: a badge (Delivered, Partly or Missed) with the number behind it, its window and the sentence the fund page prints, plus its category's promise, the test and its thresholds, and the category's Promietf_trading_costWhat it costs to trade one ETF: its IQ Liquidity Score on a fixed 0 to 100 scale, the bid-ask spread and premium or discount to NAV the issuer publishes under Rule 6c-11, ETFIQ's own premium from NAV and closing prices with its window, and, where a number is not published, why. Tetf_return_of_capitalHow much of an income ETF's distributions were return of capital: the rows its page prints, each with its source, window and date (the issuer's Rule 19a-1 notices, weighted by amount), the annual report's final tax character (Form N-CSR) with its fiscal year and filing date, the etf_benchmarkThe benchmark ETFIQ measures one ETF against, as its page names it: the index the fund names, or its own holdings, never a category stand-in; how that was set, the ETF it is priced through, and the fund's return, the benchmark's and the gap for each window. The ETFIQ benchmarks fetf_compareTwo ETFs compared as ETFIQ's comparison page for the pair publishes them: the page's title and dated lead sentence, each fund's verdict and key numbers, the share of holdings they have in common, the dated answers in the page's FAQ, and the pair's risk and return scorecard where etf_moversScout: what moved. The biggest fund inflows and outflows for a flow window (1D, 1W, 1M, 3M, YTD or 1Y; default 1D) and the best and worst total returns over a return window (1M, 3M or 1Y; default 1M), each row dated with the days it covers. ETFIQ publishes no single-day return, setf_news_todayScout: ETF news for one day from ETFIQ's ETF News, read from SEC filings: launches (funds that began trading), closures and closing notices, funds filed and not yet trading, name or ticker changes, fee changes and splits. Defaults to the latest day published (is_latest and lag_dastrategy_listStrategist: the ETFIQ Advanced Strategies list (trend, momentum, rotation, risk-parity, 2x shelf, income and the like, each a written rule over ETFs), ranked by tracked return since tracking started. Each row: risk, benchmark, tracked and back-test windows, today's holdings, signstrategy_signalsStrategist and Strategy Tracker: one Advanced Strategies rule and today's state: each fund's signal (in, out, cash and the like, with the distance from its line in plain words), the target holdings in percent, the next signal and trade dates, the last moves, and the tracked blottstrategy_recordStrategist and Strategy Tracker: one Advanced Strategies record, labelled hypothetical. For a 2x strategy the real-days-only numbers since every fund traded come first, then the tracked record (NAV from the start of tracking, windows, drawdown, Sharpe), then the full back-test (wetf_risk_checkRisk Officer: for 1 to 20 fund tickers, the observations to check before the funds are read one by one. Per fund: net assets, fee, top-10 weight, premium or discount to NAV (median, 95th percentile, days over 1%), bid-ask spread, IQ Liquidity Score, leverage (stated multiple and https://mcp.etfiq.com/Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use ETFIQ to help me. It is a free service with an MCP server at https://mcp.etfiq.com/. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 14:16 UTC) the endpoint was working, answering in 76ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on September 24, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 33 tools, including etf_search, etf_profile, etf_holdings, etf_theme. For example, you could ask Muse: "Show me the cheapest technology ETFs and how much overlap they have with each other."
This listing was added from public sources (Found in the official MCP Registry (com.etfiq/etfiq)). If you build ETFIQ, claim it to correct the details and get your badge.
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