How to Read Live Arbitrage Routes
A practical guide to reading route cost, profit per contract, and liquidity before acting on prediction market price gaps.
Start with route cost
A live arbitrage route compares two or more venue prices for the same underlying outcome. The first number to inspect is route cost: how much capital is needed to buy the set of contracts that should pay out together.
When route cost is below $1.00, the difference between $1.00 and that cost is the gross spread before fees, slippage, and execution risk.
Check profit per contract
Profit per contract is easier to compare than total dollars because liquidity changes from route to route. A 3c route can be useful only when enough size is actually visible at the quoted prices.
Respect visible liquidity
The scanner uses current top-of-book data. If one leg only has a small visible size, that smaller leg limits how much of the route can be acted on at the displayed economics.
Use details before acting
Open the details page from the scanner before relying on a card. Details show the venue legs, current prices, and route context so you can decide whether the spread is still worth checking directly on each venue.
ArbLense does not place trades for you and this is not investment advice. Use the scanner as a live research tool, then verify each venue before acting.
See current route economics
Use the scanner for live Kalshi, Polymarket, and Opinion price differences before relying on any market note.