Set cross-chain slippage to fit the route

Your slippage tolerance should be the lowest limit that lets your usual cross-chain swaps complete. It measures how far the execution price can move from the quoted price before the trade is rejected. A wider limit can prevent a failed swap, but it can also let you receive less than the quote suggested.

What does cross-chain slippage measure?

Slippage is the gap between the price shown when you submit a swap and the price at which it executes. In a cross-chain trade, the route may involve a source-chain swap, a transfer between networks, and a destination-chain swap; the displayed quote depends on the route and conditions when it is built.

While a trade is pending, prices can change and other trades can shift the available liquidity. The tolerance is a limit on that price movement, not a promise that you will receive the quoted amount. For a fuller explanation of how route choice affects wallet-to-wallet exchanges, see thor swap.

Why should frequent traders tune slippage?

If you trade often, a setting that is too tight can cause repeated failures when markets move or a route has limited liquidity. Each failed attempt costs time and may still involve network fees, depending on the transaction and where it fails.

A setting that is too loose creates a different problem: you may accept an execution at a materially worse price than the quote. That difference can eat into a strategy’s expected return, especially when you make many trades or swap less liquid assets. The right setting is a trade-off between completion and price protection.

Cross-chain routes can behave differently even for the same pair of assets. The path may use pools with different depths, and the transfer between networks adds time in which market prices can shift. A route that works reliably for one pair or trade size may fail more often for another.

How do you choose a slippage setting?

Start with the quote and route for the specific trade. Compare the likely cost of a failed attempt with the amount of price movement you are willing to accept, then adjust based on observed outcomes.

• Use a tighter limit for liquid pairs and smaller trades, where a large price move is harder to justify.
• Consider a wider limit when the route is thin or conditions are moving quickly, but only if the possible worse fill remains acceptable.
• Check whether the app lets you set a maximum output or minimum received amount; that can make the price floor easier to understand.
• Review failed and completed swaps by pair and trade size before changing your default.

Do not treat a wider setting as a fix for every failed swap. It cannot add liquidity to a route, and it may not address a delay or network problem. For frequent trading, use a conservative baseline and make deliberate changes when the route or market conditions call for them.