The independent aggregator for U.S. prediction markets.

    Prediction markets let people trade contracts on real-world outcomes (elections, Fed decisions, company earnings, sports) with prices that move like a live probability. PredictionMarkets.US tracks prices, fees, regulation, and platform behavior across the entire category: CFTC-designated exchanges like Kalshi and Polymarket, sports-focused entrants like FanDuel Predicts and DraftKings Predictions, and everyone in between.

    We cover the market the way Bloomberg covers equities and Morningstar covers funds.

    Why we exist

    This is a category being born in public: significant volume, legitimate institutional adoption, and a regulatory perimeter that moves every week. Single-platform sites can't cover it objectively; they have a horse in the race. Generalist financial media doesn't cover it deeply enough. That gap is what we exist to fill.

    What we do

    Four things. One place.

    Aggregate live prices

    Real-time prices, volume, and liquidity from Kalshi, Polymarket, PredictIt, and more, all sourced and labeled. Unified search finds any market across every platform in one query. Location-aware feeds surface the events most relevant to where you are.

    Surface the arbitrage

    Our scanner detects cross-platform mispricings in real time. The whale feed tracks the largest positions on Polymarket. The leaderboard ranks traders by realized PnL. Portfolio, watchlist, and alerts let you follow what matters, no tab juggling.

    Track every regulator

    Live status on every meaningful action for or against prediction markets. State-by-state enforcement across all U.S. jurisdictions, active federal litigation, congressional bills, and international actions from Brazil to India.

    Explain how it works

    A growing library of guides, comparisons, and explainers published weekly. From how prices actually work and how markets settle, to CFTC jurisdiction questions and tax treatment. Categories span fundamentals, platforms, regulation, fees, and advanced trading.

    Our coverage

    What we track.

    Platforms

    Structured fact sheets for every major venue: fee schedules, regulatory status, custody model, state availability, key personnel. Every claim sourced from a single internal file so the same number never appears two different ways on two different pages.

    Content depth

    A library that grows weekly, plus live trackers covering CFTC enforcement, state-level executive orders, ETF filings, congressional bills, international regulation, and federal-vs-state jurisdiction splits.

    Geographic scope

    All 50 U.S. states plus D.C., with live status on each jurisdiction's regulatory posture. International coverage spans Brazil, India, the U.K., the E.U., and other markets where platforms have hit regulatory walls.

    Journalism tooling

    Soon

    Coming soon: reporters will be able to use our API Explorer, Draft Analyzer, Market Timeline, and Liquidity Check to pressure-test a story before publishing. Free, no login required.

    Boundaries

    What we don't do.

    • We don't run an exchange.
    • We don't take orders or hold customer funds.
    • We don't give trading, tax, or legal advice.
    • We don't take money from platforms to change rankings or coverage.
    Editorial standards

    How we work.

    Independence

    Not owned, operated, or controlled by any prediction-market platform. Partners never preview articles, review rankings, or pay to influence coverage.

    Full editorial policy

    Sourcing

    Primary documents (CFTC no-action letters, exchange rulebooks, state AG orders, court records, congressional text) linked directly. Analysis is labeled as analysis, not reporting.

    Corrections

    Email info@predictionmarkets.us with the URL, the claim, and a primary source. Corrections get the same prominence as the original error.

    How this is built

    Built and run by a small independent team in the U.S. The site is designed as infrastructure, not a blog. Every platform fact, regulatory action, and price feed flows from typed, version-controlled sources of truth so the same number never shows up two different ways on two different pages.

    We're open about our limits, candid about our biases (we cover this category because we believe it should exist and we want it well-regulated) and built to compound: every article, tracker, and dataset makes the next one easier to publish accurately.

    If you're a reporter, researcher, lawmaker, or builder working in this space, we're happy to help. The work gets better when more serious people look at it.

    Not advice

    Nothing on this site is investment, tax, or legal advice. Prediction markets carry risk of loss. Rules vary by jurisdiction and change often; that's part of why we exist, and it's also why you should confirm anything material with a venue or a professional before you act on it.

    Where to start

    One URL to bookmark? It's /events. Want to understand what you're looking at? Start with our guides.