For each DEX trade, its negative slippage is capped by the slippage tolerance set by the trader, while the positive slippage can go up to infinity.
~$600k in positive slippage was returned to users by 0x API in 2021 (applications using 0x API return this quantity entirely)
对于每一笔指数交易，其负滑移由交易者设定的滑移公差限制，而正滑移可以达到无穷大。
2021，0x-API向用户返回了约60万美元的正滑动（使用0x-API的应用程序完全返回了这个数量）