调整持仓的保证金，指的是向一个正在运行的仓位所分配的抵押品中添加 USDC，或从中取出 USDC。你没有平仓，也没有重新开仓。

你改变的是此刻有多少永续合约现金余额支撑着这个仓位，这会改变仓位在被强平前还有多少空间。

这适用于逐仓仓位。在移动端，打开仓位，点击铅笔图标，然后选择添加保证金或减少保证金，输入金额，滑动确认。在网页版，点击仓位保证金数值旁边的编辑保证金，设置新金额，然后点击保存。仓位会按新的抵押品更新。

全仓仓位没有自己的保证金可以调整，因为它共用你的永续合约现金余额。减少保证金有一个底线：至少要保留仓位大小的 10% 作为保证金，app 会显示可以取出多少。

添加保证金会从你可用的永续合约现金余额中把更多 USDC 划入仓位。这让仓位有更多缓冲。你在该仓位上的实际杠杆会下降，强平价格会离当前市场价更远。

实际杠杆是你的仓位在任一时刻真正承担的杠杆。它一开始等于你开仓时选择的杠杆，之后会随着市场波动或你添加、减少保证金而变化。仓位上的杠杆标签显示的是你选择的设置，不是这个变动中的数字。

添加抵押品是不平仓就给仓位更多喘息空间的最干净的办法之一。

减少保证金会把 USDC 从仓位中取出，回到你可用的永续合约现金余额。

这会释放这些资金用于其他交易，但也会提高你在该仓位上的实际杠杆，并让强平价格更接近当前市场价。仓位变得更薄了。

现在一个更小的不利波动就足以把它强平。只有在你能接受剩余仓位风险更高的情况下才这样做。

永续合约（“Perps”）由第三方协议提供，不向美国人士（美国公民、居民或任何身处美国境内的人）开放。请勿尝试在美国境内访问永续合约。

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