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About Rivo

One terminal for Polymarket and Kalshi.

Rivo watches every trade on both venues, surfaces the ones that matter, keeps the record of who made them, and lets you test, copy, or automate from your own accounts. This page explains what it is, how it works, and what you get.

Get accessRead the methodology

$15/month. Cancel anytime. Your funds stay in your venue accounts.

Prediction markets are the one place where every trade eventually has a right answer. A contract settles to one or zero, so a trader's record is not an opinion, it is arithmetic. Rivo is built on that fact. It records large trades on Polymarket and Kalshi as they print, attaches the trader where the venue exposes one, scores each position when the market resolves, and turns the resulting history into things you can act on: a ranked list of traders, alerts for the accounts you follow, strategies you can backtest and run on paper, and Autopilot that copies a trader through your own account.

The product started as a whale tracker and grew into a copy-trading terminal. The tracker is still the front door: the Kalshi whale tracker and Polymarket whale tracker feed the same terminal, the same trader profiles, and the same strategy engine. Everything downstream, including the MCP server that lets Claude or ChatGPT run the research for you, reads from that one history.

Whale trades recorded
182,259

Large trades on both venues in the 30 days to September 13, 2026.

Distinct markets
22,057

Markets that saw at least one qualifying trade in the window.

Attributed traders
7,913

Wallets and Kalshi nicknames with a recorded trade in the window.

Positions settled
134,705

Recorded buys scored win or loss once the market resolved.

Figures from the published whale outcomes study, which is downloadable as JSON and CSV.

How the pipeline works

Four stages, from a trade printing on the venue to something you can act on. Each stage is documented in the methodology, and the same history feeds the terminal, the alerts, the API and the MCP server.

  1. 01

    Ingest every trade

    Rivo watches Polymarket and Kalshi around the clock and records trades within seconds of them printing. Each venue has its own pipeline, so a problem on one never slows the other, and coverage is monitored so gaps are caught and filled.
  2. 02

    Classify and attribute

    Each trade is labelled as a new position, an add, a flip, or an exit, and attached to the trader behind it wherever the venue makes that possible. Exits stay out of the public tape but still reach anyone following that trader. Two feeds run side by side: the whale tape for large trades, and the traders feed for everything an identified trader does.
  3. 03

    Record and settle

    Every qualifying trade goes into a permanent history with its market, side, price, size and trader. When the market resolves, each recorded buy is scored a win or a loss and its paper PnL is computed at the recorded entry price. That history is what powers trader grades, the wins and losses pages, and every backtest.
  1. 04

    Rank the traders

    Each identified trader gets a copy score: the Wilson lower bound of their win rate over the last 90 days of resolved trades, graded A to D. It rewards a long consistent record over a lucky streak, and a trader with fewer than five resolved trades is not graded at all.
  2. 05

    Test before you act

    A strategy is a named set of criteria: venue, category, price band, size range, direction, position type, keywords. The backtester scores it against settled markets, with an out-of-sample holdout, and a paper strategy keeps scoring it live as new trades match.
  3. 06

    Act from your own account

    Follow a trader for real-time alerts, place a connected order yourself, or turn on Autopilot to copy their entries automatically inside a per-trade and per-day ceiling you set. Live Autopilot runs on Kalshi through your own API key and on Polymarket US through your own connected Polymarket US account.

What the plan includes, by venue

One subscription at $15 a month covers both venues. The table shows what each workflow looks like on each one today.

Account readiness, venue permissions and the limits you configure still apply to every live action.
WorkflowKalshiPolymarket
Research and trader discoveryObserved activity and tracked profilesObserved activity and public wallet profiles
Manual tradingEligible connected accountsEligible connected accounts; venue restrictions apply
Backtesting and paper strategiesAvailableAvailable
Live AutopilotConnected Kalshi key and account readiness requiredPolymarket US only: connected Polymarket US account and account readiness required
API and MCPIncluded; key scopes and quotas applyIncluded; key scopes and quotas apply
Included
  • +Polymarket and Kalshi in one live terminal
  • +Whale activity, market movement, and ranked traders
  • +Connected trading and real-time portfolio monitoring
  • +Paper strategies with backtesting and live tracking
  • +Live Autopilot on Kalshi and Polymarket US through your own connected accounts, with your own caps
  • +Telegram and in-app alerts
  • +REST API and remote MCP access
Not included
  • -Venue trading fees. Kalshi and Polymarket charge their own fees on fills; Rivo takes nothing on top.
  • -Custody. Funds sit in your Kalshi account or your Polymarket trading wallet, never with Rivo.
  • -Venue eligibility. Whether you can trade on a venue depends on your location and the venue's rules, not on Rivo.
  • -Investment advice. Rivo shows you what identified traders did, at what price, and how it settled. The decision is yours.
Full pricing details

Four ways people use it

Following, paper strategies, manual trading and Autopilot are separate switches. You can use one without the others, and most people start with the first two.

  • Watch

    Follow traders and get alerted

    Follow any identified trader on either venue. Their trades reach you in the terminal, the in-app inbox and Telegram within seconds of printing, with the market, side, entry price and their record attached.
    How alerts work
  • Test

    Build and backtest strategies

    Define a rule, score it against settled markets with an out-of-sample holdout, then save it as a paper strategy. It records every match, marks open positions to live odds, and sends one digest a day rather than a ping per trade.
    How backtesting works
  • Trade

    Place orders from the terminal

    Connect a Kalshi API key or set up a Polymarket trading wallet and buy the same side of the same market as a trade you are looking at, with a live quote first. Standing stop-loss, take-profit and trailing exits watch the position for you.
    Open the terminal
  • Automate

    Run Autopilot on a trader

    Copy a followed trader's entries automatically through your own account, inside a per-trade and per-day cap you set. Every copy and every skip is logged with a reason. Live on Kalshi and Polymarket US; paper mode on every venue.
    Kalshi Autopilot

What we publish

The same history that runs the product is what we write about. Nothing on these pages is a screenshot of a winning week.

  • Learn library

    Long-form articles on how prediction markets resolve, how to read odds, which markets whales win in, and how copy trading actually works across both venues.
    Browse articles
  • Wins and losses

    Daily and all-time leaderboards of the biggest resolved whale positions on both venues, ranked by paper PnL, updated as markets settle.
    See the leaderboards
  • Research studies

    Fixed snapshots of recorded whale activity with a stated window, stake assumption, settlement results and downloadable data, so a number can be checked rather than trusted.
    Read the research

Who builds it and how to reach us

Rivo is built by a small team that trades prediction markets and wanted the tooling that equities and crypto traders take for granted: a tape, a record of who is on it, a way to test an idea before funding it, and execution in the same window. We run our own ingestion for both venues rather than reselling someone else's feed, and every number you see on the site comes out of that pipeline.

Three commitments shape the product. First, no custody: orders go through your own venue account and you can revoke access at any time. Second, we compute our own numbers: trader profit, win rates and strategy returns come from trades we recorded and settlements we observed, with the formulas published on the methodology page. Third, we separate signal from execution: a strategy that looks good on paper still has to clear your own caps, your own account readiness and a live quote before a dollar moves.

For support, partnership, press or a factual correction, email info@rivo.markets. If you are reporting an error in a published figure, include the page, the statement and what you believe the correct value is; corrections to research are noted on the study rather than silently replaced. Developers can start at the API docs. Never send API keys or venue credentials by email.

Frequently asked questions

Is Rivo an exchange or a broker?

No. Rivo is a trading terminal and research layer that sits on top of Polymarket and Kalshi. Orders are placed through your own venue account: a connected Kalshi API key, a connected Polymarket US account, or your own Polymarket wallet. Rivo never holds your funds.

Which venues does Rivo cover?

Polymarket and Kalshi, both ingested through venue-specific pipelines and shown in one terminal. You can filter by venue, follow traders on either, build strategies that span both, and place connected orders where your account is eligible.

What does the subscription include?

One plan at $15 a month: the live terminal, whale and tracked-trader feeds, ranked traders, strategy backtesting and paper strategies, Telegram and in-app alerts, connected trading, live Autopilot on Kalshi and Polymarket US, and the REST API and MCP server. Venue fees are separate and paid to the venue.

Where do the trader identities come from?

Polymarket trades are attributed to the wallet that signed them, so every Polymarket trade has an identity. On Kalshi, a trade carries the trader's public name where they have chosen to share it. Rivo never guesses an identity from size or timing.

Are the win rates and PnL figures real money results?

They are computed from recorded trades and real settlement outcomes, but they are paper figures: each trade is treated as filled at the recorded price and held to resolution, with no fees or slippage. The methodology page walks through every formula.

Can I cancel?

Yes, from settings at any time. Access continues to the end of the period you already paid for. Deleting your account cancels billing and soft-deletes your data.

Does Rivo sell user data?

No. We collect what is needed to run the service and, with your consent, first-party analytics on which public pages bring people in. The privacy policy describes exactly what is stored and for how long.

See both venues in one terminal.

Live whale tape, ranked traders, strategies and connected trading. $15/month, cancel anytime.

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Related

  • Kalshi whale tracker
    Live large trades on Kalshi with the trader, market, side, size, and entry price attached.
  • Strategy backtesting
    Score a rule against resolved Polymarket and Kalshi markets before you follow it.
  • Prediction market MCP server
    Plug Claude, ChatGPT or Cursor into Polymarket and Kalshi whale data and backtest rules by asking.
  • Methodology
    How Rivo records trades, settles markets, computes paper PnL, grades traders and validates rules.
rivomarkets

The premier prediction market trading setup. Track the sharpest traders on Polymarket and Kalshi, backtest your rules against settled markets, then copy or autopilot them from one terminal.

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RivoMarkets is an information and trading interface for third-party prediction markets. Nothing on this site is financial, investment, legal, tax, or gambling advice. Trading involves risk of loss.

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