如何使用 /instructen 端点计算合约规模和最小交易金额？

2026年01月13日 09:48
更新

合约大小和最低交易金额列在各合约的规格页面上（例如：https://www.bitmex.com/app/contract/XBTUSD）。

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您也可以使用 /instrument API 端点手动计算这些数值。计算方法取决于合约的赔付类型（Payout Type），具体请参阅《永续合约指南》和《期货指南》。您可以通过检查 /instrument 端点响应中的 isQuanto（双币种/受配）和 isInverse（反向）参数来识别赔付类型。

合约大小与最低交易金额公式

反向合约
合约大小 = Multiplier/underlyingToSettleMultiplier
最低交易金额 = 合约大小 * lotSize

For Inverse Contracts

Contract Size = Multiplier/underlyingToSettleMultiplier

Minimum Trade Amount = Contract Size * lotSize

线性合约
合约大小 = 1/underlyingToPositionMultiplier
最低交易金额 = 合约大小 * lotSize

For Linear Contracts

Contract Size = 1/underlyingToPositionMultiplier

Minimum Trade Amount = Contract Size * lotSize

双币种合约
合约大小 = 以结算货币计的 multiplier
最低交易金额 = lotSize

For Quanto Contracts

Contract Size = multiplier in settlCurrency

Minimum Trade Amount = lotSize

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