Portfolio Tracker
Paste a Polymarket wallet and read its book, live.
The tool runs at /portfolio 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.
Active traders rarely keep everything in one address. Capital ends up split between a main wallet and a burner, a hardware wallet holding conviction positions and a hot wallet doing the fast trades. Polymarket's own interface shows the one wallet you have connected, so your true exposure lives in three browser sessions that never add up.
The Portfolio Tracker takes public addresses — pasted in, nothing signed, no keys, no seed phrase, no wallet connection — and reads their positions straight off the chain. Add a second and a third and the dashboard aggregates them into one book, with a per-wallet chip showing each address's own contribution.
What it reads, and what it can never do
It reads a public address. That is the whole permission model: Polymarket settles on a public chain, so a wallet's holdings are information anyone can already pull from a block explorer. The tracker does the work the explorer will not — mapping each token back to the market it belongs to, valuing open positions at the current market price, and pairing them with the wallet's official all-time profit figure.
Because it is strictly read-only, it can display a position and can never move a dollar. The list of addresses you have added lives in your own browser rather than on a server, which also means it does not follow you to another device.
The four figures and the position table
Across the top: combined profit, open value, portfolio value, and how many open positions there are. Below them each position shows the market, the side held, average entry against the current mark, the position's value and its profit, sorted largest first. The table renders the fifty largest positions and states how many more exist, so a wallet with a long tail of dust does not become unreadable.
The board fetches when you load the page or press Refresh, and holds that result until you ask for another. That is a deliberate trade: one honest reading you asked for beats a number quietly drifting while you look away.
The exposure block
Underneath the positions, the same holdings are turned into a risk read. Set your bankroll and a per-market cap, and the block shows how much of that bankroll is deployed, how large your biggest position is against it, and how many positions sit above the cap.
Those two numbers are stored on your device and shared with the Kelly calculator, so the size a calculator suggests and the size you are actually carrying are measured against one bankroll rather than two.
Why there is no Kalshi tab
Kalshi publishes no per-account data through its public API. There is no open record of an individual Kalshi account for any third-party site to read, so a personal Kalshi portfolio view is not technically possible today — not here and not anywhere else.
Kalshi still appears across the rest of the product as anonymous market-level flow. It simply cannot appear as your account.
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 Portfolio Tracker:
- Polymarket only. A Kalshi balance cannot be linked by anyone, because the venue does not publish it.
- It reads any public address, which means it proves nothing about ownership. Pasting a wallet does not make it yours, and the tool does not pretend to verify that it is.
- It cannot see positions held off-platform. A book that looks directional here may be hedged somewhere the chain does not show.
- It is a snapshot on request, not a live ticker. A price that moves while the page is open will not move the row underneath it until you refresh.
- Addresses and bankroll settings live in one browser's storage. Clearing site data removes them, and nothing is backed up.
- Average entry and profit come from the venue's own accounting of that wallet. Positions moved between addresses will not read as one continuous cost basis.
What it is built on
- Polymarket data-api /positions, for open holdings, current marks and per-position profit.
- Polymarket's official profit endpoint, the only honest baseline for a wallet's all-time record — summing open positions alone omits everything already redeemed.
- The device-local bankroll store shared with the Kelly calculator, for the exposure block's cap arithmetic.
Related reading
- Polymarket Portfolio Tracker: See Combined PnL and Open Positions Across Every Wallet — Guide
- Polymarket CSV Export: Pull Settled Positions and Realized PnL Out of Any Wallet — Guide
- Kelly Criterion for Prediction Markets: A Fee-Aware Position Sizing Calculator for Polymarket and Kalshi — Guide
- Bankroll Management for Prediction Market Trading: Position Sizing, Kelly Staking, and Drawdown Control — Strategy
Tools that pair with it
The wallets you follow, and what they are holding.
Fee-aware position sizing, hedges, and a drawdown simulation.
Practice book at real venue prices. No money at risk.
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.