Live Sharp Feed
Large trades from scored wallets, streaming across both venues.
The tool runs at /live and needs a $49.99/mo membership. There is no free tier and no trial, so opening it signed out lands on the pricing page rather than the board. This page is the open documentation of what it does.
The Live Sharp Feed is one merged tape of two very different venues. On the Polymarket side every row is attributed to a specific on-chain wallet, with that wallet's Sharp Score, its rank among the wallets we track, the exact dollar stake, and the price it paid. On the Kalshi side no row carries a name, because Kalshi publishes no per-user data at all — those rows are anonymous prints, scored for how unusual they look against the rest of that market's tape.
The board refreshes on an eight-second poll and holds the last good payload if an upstream hiccups, so a feed outage degrades to slightly stale rows rather than a blank screen. Above the tape sits the Tail Machine: a flat-stake replay of the tracked sharps' settled trades, which answers a narrower question — what a fixed stake on every one of their closed trades would have come to — and answers it as a hypothetical, ignoring slippage and timing.
Where the Polymarket rows come from
The feed starts from the monthly leaderboard, ranks those wallets by Sharp Score, keeps the top twenty, and pulls each one's recent trade history. That is a deliberately narrow universe: the point is not every large trade on the exchange, it is the trades of wallets whose settled record has already been scored.
One human order usually lands on the exchange as many separate order-book fills — a single wallet's sell campaign once printed as sixty-one near-identical clips. The feed clusters fills for the same wallet, market, outcome and side whose quiet gap is under three minutes into one logical trade: dollars sum, the price becomes the volume-weighted average, and the row shows how many clips it merged. What you read is one decision, not the exchange's fill log.
How the Kalshi rows are scored without an identity
Kalshi rows come off the public trade tape. Negotiated block prints always qualify; otherwise the largest recent prints do. Each one gets a Flow Score from one to ninety-nine, built from three identity-free inputs: where the print's size sits in the distribution of that market's other recent prints, whether it was a block, and whether it rides a one-sided run of same-side aggressive takers.
Two prints from the same unknown trader are scored independently, which is exactly why a Flow Score can never be a track record and is never presented as one. It scores the print, not the person behind it.
Reading a row: copy grade, first entry, and price since entry
Polymarket buys carry a Copy Grade from A to D. It blends the trader's proven skill (Sharp Score, the heaviest term), how much room the entry price leaves — a tent that peaks near 38¢ and falls to nothing at both extremes, so cheap long shots and expensive favourites both grade low — and size as a conviction proxy. Sells get no grade, because an exit is not a copy candidate.
Rows can also show a first-entry marker and a since-entry number. The first-entry flag means this buy is the oldest print in the window the response was built from for that wallet, market, outcome and side — a position opened before the window still reads as a first entry, and the page says so. Since-entry is the market's move signed toward the trader's position: positive always means it has gone their way. It is early price movement in progress, not settled profit, and it is only computed for plain Yes/No outcomes where the side of the book is unambiguous.
Filters, the cross-venue column, and the ending-soon rail
You can filter the tape by venue, by minimum dollar size, to entries only or exits only, and to first entries only. Where a market has a verified twin on the other exchange, the row carries that venue's current price and a link, drawn from the same curated pair table the arbitrage scanner uses — so a print and its cross-book context arrive together.
A separate rail lists markets on both venues resolving inside the next twenty-four hours, sorted by settlement time. It is there because the last day before settlement is when prices move fastest and mistakes are least recoverable.
What it cannot tell you
Every tool has a boundary, and knowing where it sits is the difference between using one well and being misled by it. For Live Sharp Feed:
- It is near real time, not instant. The feed polls every eight seconds and the server memoises the assembled payload for a few seconds on top of that — a sharp trades first, and the price you can get may already be different.
- A Kalshi row can never be attributed to a person. The venue does not publish trader identities, so any site claiming to name a Kalshi trader is inventing it.
- A Polymarket print is an entry, not a book. It cannot show you that wallet's hedges, its offsetting positions elsewhere, or its exit plan — a single leg of a spread looks directional in isolation.
- The Copy Grade is a heuristic built from score, price and size. It is a way to sort rows, not a forecast, and a D-graded trade can win.
- Since-entry is unresolved price movement, not realized profit, and it is omitted entirely on named-outcome markets rather than risk showing it with the sign flipped.
- The Tail Machine replay assumes you got the sharp's price and filled your whole size. Real entries are later and worse, and hypothetical results do not reflect real fills, fees or slippage.
What it is built on
- Polymarket data-api: the public leaderboard for the wallet universe, per-wallet trade history for the tape, and /positions for the enrichment behind each Sharp Score.
- Kalshi trade-api v2: the public anonymous trade tape, plus the open-market catalog for titles and the ending-soon rail.
- Polymarket gamma: the open-market catalog, used for current prices behind the since-entry column.
- The curated cross-venue pair table in lib/divergence.ts, for the other exchange's price on matched markets.
Related reading
- Live Sharp Money Feed: Track Smart Money on Polymarket and Kalshi in Real Time — Guide
- Copy Grade: Score Every Prediction Market Trade Before You Copy It — Guide
- Tail Machine: Replaying What Following Prediction Market Sharps Would Have Paid — Guide
- How to Copy Trade (Tail) Sharp Wallets on Polymarket — Strategy
Tools that pair with it
Wallets ranked by repeatable skill, not bankroll or luck.
Where tracked sharp capital leans, market by market.
Rules that watch the feed and notify you in the browser.
WhaleTracks is informational analytics, not financial advice. Market data comes from Polymarket, Kalshi and Manifold's public APIs; WhaleTracks is not affiliated with any of them. Past performance does not guarantee future results.