Having more grids does not always mean more profit. In fact, high fees can eat up all your gains. The core of grid trading is the balance between each grid's price gap and how often you trade. More grids mean more frequent trades, but each profit is smaller, and fees take a bigger share.
How Grid Number Affects Profit and Fees
The logic of grid trading: when the price swings within your set range, every time it crosses a grid, a trade happens and you earn the price difference. If you have too many grids, the price gap per grid becomes very small. After deducting trading fees, your net profit may be tiny – or you might end up just "breaking even for nothing".
The basic formula: Profit per grid = (Grid upper limit - Grid lower limit) / Number of grids. The more grids, the larger the denominator, so each trade's profit gets smaller. If price movement is not wide enough, each trade's profit might only cover the fees, making the whole strategy pointless.
Situation A: Sideways Market – Aim for More Trades, but Watch Out for Fee Erosion
When the market is moving sideways, the price goes back and forth in a range. A denser grid can theoretically catch more trading signals. However, as each trade's profit shrinks, trading fees can become the main cost. For regular users, the taker fee is usually 0.05%–0.1%. If your profit per grid is only 0.2%, almost all the money goes to fees. When setting up a grid, if you find the profit per grid is below 0.5%, you should ask yourself whether it's worth starting.
Situation B: Trending Market – Dense Grids Can Become a Burden
If the price breaks out of your grid range, all your pending orders get filled, and your position turns into a one-sided holding. In this case, the more grids you have, the more fees you paid in the trending move. Also, because your funds are spread out across many now-useless orders, you might miss the big trend move. Dense grids offer almost no advantage in trending markets.
Risk reminder: If you ignore trading depth when setting up your grid, your strategy can fail even if the logic is sound. This is due to the "minimum order size" rule. OKX requires a minimum notional value for each order. If the capital per grid falls below this threshold, the system will reject the order, and your strategy will run in vain.
How to Check and Improve Your Grid
Check method: After running the strategy for a while, compare your "realized profit" with the "fees" paid. If fees account for more than 30% of your profit, your grid may be set too dense.
Optimization steps: Before changing the number of grids, calculate the profit per grid using the formula. Make sure there is still a surplus after deducting fees for both sides of the trade. As a reference, in a sideways market, the number of grids is usually set between 20 and 50 – this balances trade frequency and profit per grid. If you see high fees and many trades while running, it's best to stop the strategy, then set a wider price range or use fewer grids.
