After copying a portfolio, the system will automatically duplicate the trades executed by the lead traders for the copy traders.
Spot copy trading rules
Buy order:
| Lead Trader Order Type | Copy Trigger | Copy Trader Order Type |
| Taker (Market) | Immediate | Limit Order (IOC) Limit price: Slippage cap (0.3% for BTC/USDT & ETH/USDT. 0.5% for all other pairs) |
| Maker (Limit, Stop Limit) | Once the order is fully filled | Limit Order (IOC) Limit price: Slippage cap (BTC/USDT and ETH/USDT: 0.3%. Other pairs: 0.5%) |
Sell order:
| Lead Trader Order Type | Copy Trigger | Copy Trader Order Type |
| Taker (Market) | Immediately | Market |
| Maker (Limit, Stop Limit) | Once the order is fully filled | Market |
Notes:
- Trading fee rate follows your Binance account’s VIP level fee rate.
- BNB cannot be used for trading fee deduction.
- Referral fees are supported, but trading fee rebate vouchers are not supported.
How to calculate the buy and sell order size?
[Fixed Ratio] mode
- Buy order: The copy trader's order cost is proportional to the lead trader’s order cost. However, the copy trader’s order entry price may not be exactly the same as the lead trader’s. Please note that slippage can affect the copy trader’s order price, and the final order size might be lower than the lead trader’s.
- For example, the lead trader’s available balance is 1,000 USDT and they placed an order with an order cost of 500 USDT (50% of the available balance). If a copy trader uses 500 USDT to copy the portfolio, the system will use 250 USDT as the cost to place the order. However, please note that the final order size may be lower than 250 USDT due to slippage.
- Sell order: For example, a lead trader has a 1 BTCUSDT order and partially sold 20% of their order (0.2 BTC). One of their copy traders copied the trade with a total investment amount of 0.6 BTC, the system will automatically sell 20% (0.12 BTC) for the copy trader.
[Fixed Amount] mode
- Buy order: The system will place each trade using the cost per order amount the copy trader set.
- For example, a copy trader sets the cost per order amount as 20 USDT and the total investment amount is 60 USDT. The system will copy each new trade with 20 USDT as the cost. After copying 3 orders, their balance will become 0 (lower than the cost per order amount). Therefore, the copy trader won’t be able to copy the lead trader’s orders anymore as their wallet balance is insufficient.
- Sell order: For example, a lead trader has a 1 BTCUSDT order and partially sold 0.2 BTC. One of their copy traders copied the trade with a total investment amount of 0.6 BTC, the system will automatically sell 0.2 BTC for the copy trader.
Please note that if the buy order amount doesn’t meet the minimum trade amount, the system will not place the order. For more details, please refer to Trading Rules.
Why did copy trading fail?
- The available balance in the copy trader’s portfolio is insufficient.
- The lead trader used a limit or stop-limit order to place the order, but the order hasn't been fully filled.
- The market slippage exceeded the limit.
- The order notional value is below the symbol’s minimum notional value.
Note: When a copy trader’s portfolio balance is below the minimum copy amount and fails to copy 5 consecutive orders, it will be automatically closed. Reasons for the failure could be insufficient balance or not meeting the minimum order size. The system will check and close copy portfolios that don’t meet the requirements each Friday. This measure ensures that only eligible copy traders remain on your roster as a lead trader.
Why is the final order size smaller than the cost per order amount/fixed ratio amount?
- When the Immediate-Or-Cancel (IOC) limit order was partially filled.
- In the [Fixed Amount] mode: When the available balance is below the cost per order amount, the system will use the remaining balance to place the order.
- Due to slippage, some copy traders may not be able to copy an order. The system will therefore check the dynamic maximum size for each symbol. If the number of copy traders exceeds the limit, the system will reallocate the copy trading amount of all copy traders, which may cause the final order size to be smaller than the expected.
For more information regarding Binance Spot Copy Trading, please refer to: