Grid trading splits a price range into levels and places an order at each one. When the price drops to a level, the bot buys. As soon as that buy fills, it places a matching sell a small step higher. When the price bounces, the sell fills and the profit is banked — then the level is ready to buy again.
Instead of predicting where a coin is heading, a grid simply profits from the fact that prices rarely move in a straight line. Every swing through the grid is another small, completed trade.
On Crypteller the whole grid runs on the spot market: every buy is paid in full, the coins sit in your own Binance account, and nothing can be liquidated if the price dips further than expected.