Required Legal Notice: Virtual currencies, real risks. The only guarantee in crypto is risk. Read more

Required Legal Notice: Virtual currencies, real risks. The only guarantee in crypto is risk. Warning: The value of your virtual currencies can rise or fall sharply, and your initial investment may be lost completely; virtual currencies are not covered by the guarantee funds that cover bank deposits; there is no legal mechanism on the virtual currencies market to prevent market manipulation or insider dealing; virtual currencies depend entirely on a specific computer technology and infrastructure, which in certain cases may be very recent and not yet adequately tested; if one loses the identification code or password giving access to the virtual wallet in which the virtual currency is stored, the currency held therein will be irretrievably lost; virtual currencies are currently accepted as a means of payment to a limited extent, and in most countries there is no legal obligation to accept them; for more information about the risks associated with an investment in virtual currencies, we advise you to read the Wikifin page What is a cryptocurrency? | Wikifin.

Fat finger warning

Last updated: 8 жніўня 2025 г.

To prevent unintentional Market Orders, we have implemented a fat finger warning.

The warning will show when the average slippage on an order is greater than or equal to 3%. Average slippage is the percentage distance between your projected fill price and best available price.

The fat finger warning is only available for Spot trading on Kraken Pro. There is no API support currently.

If you place a market or limit order that might experience 3% or more slippage, you will see the warning in the order confirmation form. You will then have to manually confirm the order by typing “CONFIRM” in the text box to acknowledge the warning and submitting the order.

How do we calculate slippage?

Formula to calculate “expected loss”:

Sell: (current market price - average fill price on order book) x order size

Buy: (average fill price - current market price on order book) x order size

Fat finger warning

How do we calculate slippage?

Need more help?