How far your own order moves the price against you while it fills.
Market impact is how far your own order pushes the price against you while it fills. It is the cost nobody quotes you: the fee is printed on the page and the impact is not, and above a certain size the impact is the larger number by a wide margin.
Every idea on this page is something you can see on a live tape rather than take on faith. The board draws real executed trades as an army: buyers advance from the left, sellers from the right, and the glowing line between them is the price. Here is how to read it.
Now go watch the word happen. The live board is free for XRP — no account, no sign-up.
▶ Open the live board Unlock all seven markets · $2.99