BYDFi offers various trading products, including Spot Trading, Leveraged Tokens, Perpetual Contracts (USDT-M & COIN-M), Spot Trading Bots, Futures Grid Trading, and Convert Trading. The fee structure differs for each type of trade, as detailed below.

Spot Trading Fees

Spot trading fees are based on the Maker/Taker fee model. A Maker fee applies when a limit order is placed in the order book and waits to be matched, while a Taker fee is charged when an order is immediately matched with an existing market order.

Trading Type	Maker Fee	Taker Fee
Spot Trading	0.1%	0.1%

Formula

Spot Trading Fee = Trade Amount × Trading Fee Rate

For example, if BTC’s current price is 40,000 USDT, Trader A uses 20,000 USDT to buy 0.5 BTC via a market order, while Trader B sells 0.5 BTC using a limit order.

Trader A (Taker) fee calculation:
0.5 BTC × 0.1% = 0.0005 BTC

Trader B (Maker) fee calculation:
40,000 × 0.5 BTC × 0.1% = 20 USDT

Trading fees are charged in the traded asset. If you buy BTC, fees are deducted in BTC, while if you sell BTC, fees are deducted in USDT. Unfilled or canceled orders are not subject to trading fees.

Leveraged Token Fees

Leveraged tokens incur a 0.2% trading fee when buying or selling, deducted in USDT.

Formula

Leveraged Token Fee = Trade Amount (USDT) × Trading Fee Rate

For example, if a trader buys 10 USDT worth of BTC3L, the fee calculation is:
10 × 0.2% = 0.02 USDT

Additionally, a daily management fee of 0.03% is charged at 00:00:00 (UTC+8), which directly impacts the Net Asset Value (NAV) of leveraged tokens but does not reduce the number of tokens held. If a user does not hold leveraged tokens at the time, no management fee is charged.

Perpetual Contract (USDT-M & COIN-M) Fees

Perpetual contracts follow the Maker/Taker fee structure and fees apply to both opening and closing positions.

Trading Type	Maker Fee	Taker Fee
USDT-M & COIN-M	0.02%	0.06%

USDT-M Perpetual Contract Fee Calculation

Opening Fee = Trade Size × Entry Price × Trading Fee Rate
Closing Fee = Trade Size × Exit Price × Trading Fee Rate

The formula for calculating the total trade amount:
Trade Size (Contract) × Entry Price = Total Trade Amount (USDT)

COIN-M Perpetual Contract Fee Calculation

Opening Fee = (Contract Size × Contract Multiplier ÷ Entry Price) × Trading Fee Rate
Closing Fee = (Contract Size × Contract Multiplier ÷ Exit Price) × Trading Fee Rate

For COIN-M contracts, the Contract Multiplier = 1.

Contract Size is calculated as Coin Amount × Entry Price.

Spot Trading Bot Fees

Spot trading bots incur fees based on the trade type. Spot Grid Trading and Spot Martingale Strategy follow the Maker/Taker fee structure, while Spot Investment is charged based on market order fees.

Spot Grid Trading Fee Calculation

Fee = Trade Amount × 0.1%

Spot Investment Fee Calculation

Fee = Purchase Amount × 0.1%

For the Spot Martingale Strategy, the fee depends on the order type. Market orders incur Taker fees, while limit orders follow Maker/Taker fee rates.

Futures Grid Trading Fees

Futures Grid Trading follows the Maker/Taker fee model, where fees depend on how the order is executed.

Formula

Futures Grid Fee = Trade Amount × Maker/Taker Fee Rate

If an order is placed as a Maker, the Maker fee applies. If an order is matched immediately, the Taker fee applies.

Trading Type	Maker Fee	Taker Fee
Futures Grid Trading	0.02%	0.06%

Convert Trading Fees

Convert Trading does not charge additional fees, as all costs are included in the quoted price. The displayed price represents the final settlement amount, ensuring full transparency.

Important Notes

• Trading fees are subject to market changes. Please check BYDFi’s official announcements for the latest rates.
• VIP users can enjoy lower trading fees. Refer to the BYDFi VIP page for more details.
• Unfilled or canceled orders are not charged fees. Ensure sufficient account balance to cover fees to avoid failed transactions.