Edgebook is the trading journal for prediction markets. Paste a Polymarket wallet and see your real P&L, whether you beat the prices you paid, which categories make you money, and a tax-ready export.
Finished positions (sold or resolved), by date
Win rate of resolved positions, grouped by your average entry price. Above the diagonal means you had edge.
Edge = how much more often you won than your entry prices implied, in percentage points
Largest realized gains
Largest realized losses
Every finished position in a tax year: date, cost basis, proceeds, gain or loss. Polymarket doesn't send tax forms, so this is your record.
Estimates from public data, not tax advice. The IRS hasn't said how prediction-market gains are taxed. Read our guide to the options, then check with a tax professional.
Want this every week? Pro adds a weekly edge report, Kalshi import, and alerts when you trade a losing category.
Wallet explorers show you whales. Edgebook shows you yourself: where your edge is, where you're leaking money, and what to stop trading. In our study of active Polymarket traders, only 36% were profitable.
See if the contracts you buy at 30¢ win more than 30% of the time. That's the only test of edge that matters.
Sports, crypto, politics, weather. Find the one where you're sharp, and the one that's costing you.
Polymarket doesn't send you a 1099. Edgebook builds the ledger your accountant asks for.
One journal across venues. Kalshi CSV import is next on the roadmap.
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