What Is Slippage in Crypto?

Markets contain orders or pooled liquidity at multiple prices. If an order is larger than the amount available at the best price, it consumes additional levels. The resulting average execution price differs from the first quote.

Prices can also change between submission and execution. This timing risk is more visible in fast markets, on slower networks, and when a transaction waits for confirmation or inclusion in a block.

Slippage should be considered relative to available depth, not only the dollar size of a trade. A modest order can move a thin market, while a much larger order may have little effect in a deep market.

Splitting an order can reduce immediate market impact in some circumstances, but it can also add fees, expose the trader to changing prices for longer, and provide no guarantee of a better final result.

A market order prioritizes execution using available prices, so its final average can differ from the visible quote. A limit order sets a price boundary, but it may remain unfilled or fill only partially.

Decentralized applications often use a slippage-tolerance setting that defines how much quote movement a transaction will accept before reverting. A wider tolerance may increase execution probability, but it also permits a less favorable result and can increase exposure to adverse transaction ordering.

Automated market makers calculate prices from pool balances and a formula. A swap changes those balances, so larger swaps relative to the pool cause greater price impact. The displayed quote normally estimates this effect before submission.

Slippage and price impact are related but not identical. Price impact comes from the trade changing the market state; additional slippage can occur when that state changes before the transaction executes.

A useful quote should identify the expected output, minimum output or price boundary, fees, and expiration assumptions. Interfaces may present these values differently, so the headline exchange rate is not always the complete cost.

No setting can eliminate market risk. Thin liquidity, volatility, failed transactions, fees, and venue-specific rules can all affect execution. Reviewing the final transaction record is necessary when calculating an exact result.