Thumper by MagicMarkets

Thumper by MagicMarkets — live price comparison, edge detection, and hedging across prediction markets.

Thumper is a side-panel companion for prediction-market traders. Open a market and Thumper instantly shows the same event's price across venues - so you always know where it's cheaper before you trade. • Live price comparison, side by side, updated as you browse • Cheaper-venue verdict — which side is the better deal, and by how much • Edge & arbitrage detection when prices disagree enough to matter • Order-book depth & price impact before your order moves the market • Payout calculator — enter an amount, see your return on each venue • Hedge & position sizing without leaving the page • Optional desktop alerts when a significant edge appears (off by default) WORKS ON • polymarket.com • pro.magicmarkets.com More venues coming. Collects no personal data — your settings stay in your browser. Thumper is an independent tool.